Tag: PCB (page 2 of 6)

Postbag: #24 – 555 Timers, MP3 Player, 150mAh Lipo, Proto PCBs



What’s in today’s post?

NE555 Duty Cycle and Frequency Adjustable Module Square Wave rectangular wave http://www.ebay.co.uk/itm/-/310702401768

NE555 Pulse Module LM358 Duty Cycle Frequency Adjustable Module Square Wave http://www.ebay.co.uk/itm/-/310703064800

NE555 DC 12V Delay relay shield Timer Switch Adjustable Module 0 to 10 Second http://www.ebay.co.uk/itm/-/310979634874

USB Mini Clip MP3 Player Screen Support LCD Up To 16GB Micro SD TF Card 5 Colors http://www.ebay.co.uk/itm/-/371151312150

Red Universal Car Windshield Stand Mount Holder For PDA iPod Cell Phone GPS New http://www.ebay.co.uk/itm/-/371144309750

10 Pcs 2cm x 8cm FR-4 Two Sided Prototype DIY Universal PCB Print Circuit Board http://www.ebay.co.uk/itm/-/191241792438

8PCS Double Side Prototype PCB Tinned breadBoard 5×7 4×6 3×7 2x8CM Each 2Pcs FR4 http://www.ebay.co.uk/itm/8PCS-Double-Side-Prototype-PCB-Tinned-breadBoard-5×7-4×6-3×7-2x8CM-Each-2Pcs-FR4-/310910403198

Source

IoT PCB ways to care for Startups

Considering IoT products are so cutting edge, you would consider that getting an IoT printed circuit board (PCB) project off the ground starts by reinventing the wheel and experiencing a wide range of technical problem. That is most certainly a misconception.
Nonetheless it doesn’t indicate IoT startups have a certain route to fame and fortune. Facing them is quite a lot of design and manufacturing factors to consider which are completely unique to these small products. These points need to be taken into account for the fresh IoT device to succeed.

On the plus side, it’s a consideration for IoT startups to be aware of that the foundation for a successful new product does exist. This means experience and knowhow involving the design, fabrication and assembly of these kinds of cutting-edge products are accessible. Also, the best advice is for wise IoT product business owners and creators to follow the recommendations that veteran electronics manufacturing services or EMS suppliers have to give. These firms in addition to their engineering employees have performed the work with groundbreaking IoT firms in Silicon Valley participating in the early stages of this promising sector.

The PCB of an IoT unit is a distinct beast than the traditional one, which is notably larger and flat. IoT units, in comparison, comprise largely of either rigid-flex or flex circuit assemblies, which include their very own categories of design layout, fabrication and assembly points and technicalities.

Layout

A key factor is to try to find seasoned designers who have completed many rigid-flex PCB designs. PCB space for an IoT unit is scarce. So you want the designer to have firsthand layout experience to correctly design significant components on that compact room.

At the same time, nearly all IoT devices aren’t fixed; they bring significant movement and twisting. Right here, the seasoned designer plays a vital role in figuring out bend ratios and lifecycle iterations as a serious part of a design. Some other significant design layout points include signal trace thickness, number of rigid and flex circuit layers, copper weight and stiffener placement. Stiffeners are used on flex circuits to ensure that components attached with the flex circuit continue being tightly in place to prevent itself from movement.

An additional aspect to consider is through-hole element placement in rigid-flex circuits. How come is that significant? Most of the IoT devices are based on surface mount device placement. However , there could be through-hole components, which are often positioned on either the rigid part or the flex area of the board. Through-hole components are generally utilized to communicate input/output or I/O signals to the outside world. Like that, those signals can be displayed by using an LCD or LED monitor. Through-hole element placement is a key thing to consider in an IoT unit because when applied to the flex section of the board, right stiffeners need to be designed and employed for appropriate assembly.

Lastly in the layout category, the heat that components bring in must be evaluated. IoT devices are ever more difficult with rigid-flex and flex circuits featuring up to 12 – 14 layers. A few devices are digital. However , gradually more analog systems are getting used in IoT systems. Analog circuitry results in a great deal more heat than digital ones. That means heat expansion plus contraction rate ought to be factored in. In tech lingo, this is actually referred to as the Coefficient of Thermal Expansion or CTE and the right dealing with it.

Manufacturing

Finding the right fabricator is critical and is linked to the EMS company you’ve selected. The fabricator you are looking for needs to have IoT PCB fabrication experience. Among significant points here are ensuring strong adhesions between layers on both rigid and flex circuit sides, being aware of all of the important calculations and having a good know-how about when current moves from the rigid side to the flex side.

Such fabricators also have to possess an in-depth comprehension of exceptionally modest components such as 0201 and 00105 device packages, package-on-package, and the use of fine-pitch ball-grid array or BGA packaged devices.

In addition they should have experience of designing boards with fairly tight tolerances in terms of footprint for those types of BGA devices, in terms of up-to-date capabilities like laser direct imaging for putting the solder mask on the board. They must have laser drills for via drilling with sizes of 5 mils or under since these IoT products could be so small that a standard drill size of 5 to 8 mils might not be sufficient. They could need to go to a 3 mil, which indicates that you should get an excellent laser drilling capability indoors.

In the event that you’re placing via-in-pad, it’s really a great way to utilize the small space that is available on the rigid-flex board, however , it poses trouble for assembly. If vias are not totally planar or flat in shape, it will become tricky over the assembly of those tiny BGA packaged devices. That’s because non-planar surfaces can easily threaten the integrity of solder joints.

At times via in pads leave bumps in the event they’re not scrubbed appropriately after positioning the vias and gold finish on top. In case there are bumps, then the solder joints in the assembly for those tiny BGA balls in those IoT devices would not be an ideal joint. This might create occasional connections, which might be a bigger issue to cope with and fix. It all boils down to which EMS company you’re working with because they’re the ones who will decide on the fabrication house to make a triumphant IoT item for you.

PCB Assembly

It’s very important to head off to seasoned EMS companies that have effectively assembled IoT and wearable PCBs because they have specialized tooling and fixtures readily available, which are needed for assembly to make certain that components are placed appropriately, accurately and the printing is practiced appropriately.

Printing generally is a problem for IoT systems. If it’s a rigid-flex board, then there does exist a difference between thicknesses of the rigid and flex circuit portions, which suggests a special fixture is needed to retain the complete rigid-flex board planar or thoroughly flat to allow effective printing to become accomplished.

Startups need to be prepared to choose the correct manufacturing partners and EMS corporations. This way they can be certain they have got sufficient experience before hand to get the multitude of design, fabrication and assembly details successfully performed as they are crucial to a thriving and timely IoT product release.

Custom microcomputer, Motorola 68k



A single-board computer built around a Motorola 68000 microprocessor. For my junior project in undergrad computer engineering, I designed the printed circuit board, assembled it, and wrote the firmware in assembly.

The schematics, VHDL, and assembly code are available here:
https://github.com/loganturner/MicroDesign

Music:
George Street Shuffle Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0 License
http://creativecommons.org/licenses/by/3.0/

source

Best 4 cool projects for the Raspberry Pi Zero W

1. Make a Raspberry Pi Zero AirPlay Speaker

While this project initially demands using a Raspberry Pi Zero with a WiFi dongle accessory, the Zero W fully does away with the demand for this gadget. Accompanied by a low-priced 5V compact battery, you can certainly build yourself a awesome, wireless AirPlay speaker for streaming music from your Apple product.

Read the full step-by-step over at Hackster. https://www.hackster.io/fvdbosch/raspberry-pi-zero-airplay-speaker-d99feb

2. Make a Raspberry Pi Zero W desk clock

Because of the Pi Zero W’s wireless functions, it’s easy to build yourself a desktop clock that’s accurate to within some milliseconds. Once you have all the elements (with a display that looks straight out of a Hollywood thriller), you may hook up the clock via WiFi to the Network Time Protocol (NTP) and relax nicely realizing you are in sync with the remainder of the world.

Just go to the full step-by-step instruction manual on Hackaday. https://hackaday.io/post/54276

3. Build your very own Raspberry Pi-powered R2-D2

For those who have always wanted to hack a toy R2-D2 into something a little bit more realistic, the Raspberry Pi Zero W has arrived to help. Les Pounder over at TechRadar has shared a instruction for adding some wheels and attitude to the favored android from the “Star Wars” universe.

See the step-by-step recommendations listed here. http://www.techradar.com/how-to/computing/how-to-build-your-own-r2-d2-with-the-raspberry-pi-zero-1310979

4. A Pi Zero W home security camera

Among the list of large distinct advantages to using a Raspberry Pi Zero W is its capacity to stay connected to the internet in places with no ethernet connection. For home security camera applications, this new improvement is exceedingly beneficial.

Over at Raspberry Pi Spy, in depth instruction manual have been shared to creating your individual Pi Zero W home security camera. Better still, there presently exists both a good way to mount your camera and a devoted operating-system known as motionEyeOS to tie it as a whole.

See the full step-by-step here. http://www.raspberrypi-spy.co.uk/2017/04/raspberry-pi-zero-w-cctv-camera-with-motioneyeos

Fritzing Tutorial 2 | PCB Layout Design



Like, Share & Subscribe for more!
www.cwain.in

Source

Internet of Things PCB ways to care for Startups

Since IoT appliances are so fresh, you would believe that getting an IoT printed circuit board (PCB) project off the ground starts by reinventing the wheel and facing a number of technical problem. That is definitely not the case.
But it doesn’t indicate that IoT startups have a straightforward route to fame and fortune. Facing them is a considerable number of design and manufacturing points which are completely unique to these small products. These things to consider should be considered for the fresh IoT device to hit your objectives.

On the plus side, it’s a factor for IoT startups to figure out that the foundation for a successful cool product does exist. This suggests experience and knowhow involving the design, fabrication and assembly of these types of state-of-the-art products are readily available. And the best advice is for prudent IoT product business people and creators to heed the recommendation that seasoned electronics manufacturing services or EMS vendors have to give you. These businesses and also their engineering team members have previously accomplished this work with groundbreaking IoT businesses in Silicon Valley taking part in the very first of this rising field.

The PCB of an IoT product is a special beast than the traditional one, which is a great deal larger and flat. IoT devices, in comparison, comprise generally of either rigid-flex or flex circuit assemblies, which include their very own categories of design layout, fabrication and assembly things to consider and nuances.

Layout

A top factor is to try to find expert designers who have achieved a whole lot of rigid-flex PCB designs. PCB space for an IoT product is scarce. So you want the designer to have directly layout working experience to properly design critical parts on that little room.

Aside from that, virtually all IoT products aren’t stationary; they receive appreciable movement and turning. Here, the expert designer plays an important role in figuring out bend ratios and lifecycle iterations as a significant part of a design. Some other critical design layout things to consider include signal trace thickness, number of rigid and flex circuit layers, copper weight and stiffener placement. Stiffeners are employed on flex circuits to reassure parts mounted on the flex circuit keep on being snugly constantly in place to stay away from movement.

Some other factor is through-hole component placement in rigid-flex circuits. How come is that pretty important? Lots of IoT items are based on surface mount device(SMD) placement. Nevertheless , there may be through-hole parts, which are typically placed on either the rigid portion or the flex part of the board. Through-hole parts are generally utilized to connect input/output or I/O signals to the outside world. That way, those signals can be shown employing an LCD or LED monitor. Through-hole component placement is a crucial factor in an IoT item simply because when utilized on the flex area of the board, suitable stiffeners have to be designed and employed for good assembly.

At last in the layout category, the heat that parts deliver has to be taken into consideration. IoT products are becoming more intricate with rigid-flex and flex circuits featuring approximately 12 – 14 layers. A few products are digital. Nevertheless , more and more analog products are getting used in IoT products. Analog circuitry generates somewhat more heat than digital ones. As a consequence heat expansion plus contraction rate must be thought about. In tech lingo, this is actually known as the Coefficient of Thermal Expansion or CTE and the effective management of it.

Manufacturing

Choosing the best fabricator is critical and is linked to the EMS firm you have selected. The fabricator you’d like needs to have IoT PCB fabrication practical experience. Among critical things to consider here are insuring sturdy adhesions in between layers on both rigid and flex circuit sides, knowing all the critical calculations and getting an excellent comprehension of when current transfers from the rigid side to the flex side.

Such fabricators must also get an in-depth knowledge of really small components just like 0201 and also 00105 device packages, package-on-package, and the employment of fine-pitch ball-grid array or BGA packaged devices.

In addition they need to have experience with designing boards with very tight tolerances in terms of footprint for those sorts of BGA devices, in terms of up-to-date capabilities like laser direct imaging for putting the solder mask on the board. They should have laser drills for via drilling with sizes of 5 mils or under simply because these IoT units could be so small that a normal drill size of 5 to 8 mils may not suffice. They might need to go to a 3 mil, which means that you should get an advanced laser drilling capability on-site.

In case you’re placing via-in-pad, it is a good way to utilize the small space that is available on the rigid-flex board, yet it creates problems for assembly. If vias aren’t entirely planar or flat in shape, it becomes challenging over the assembly of those tiny BGA packaged devices. The reason being that non-planar surfaces may risk the integrity of solder joints.

In some cases via in pads leave bumps in the event that they’re not scrubbed appropriately after placing the vias and gold finish on the top. In the event that there are bumps, then the solder joints in the assembly for those tiny BGA balls in those IoT devices may not be an ideal joint. It could create sporadic connections, which might be a larger issue to cope with and fix. It all boils down to which EMS firm you are using because they’re the ones who will pick the fabrication house to make a successful IoT product for you.

PCB Assembly

It’s essential to head over to expert EMS companies that have correctly assembled IoT and wearable PCBs because they have specialized tooling and fixtures already available, which are needed for assembly to make sure that components are placed effectively, accurately and the printing is practiced the right way.

Printing can be quite a obstacle for IoT products. If it’s a rigid-flex board, then there will be a difference between thicknesses of the rigid and flex circuit portions, which means a special fixture is required to keep the complete rigid-flex board planar or absolutely flat to help effective printing to be attained.

Startups should really be set to find the most suitable manufacturing partners and EMS enterprises. Doing this they can be certain that they have adequate experience upfront to get the multitude of design, fabrication and assembly details correctly performed as they are crucial to a victorious and timely IoT product release.

How to build stand-alone Arduino on PCB board



Schematic: http://bartzz.com/public/standalone_arduino/schematic.pdf

Parts list:
– atmega 328
– dip28 socket
– 16mhz oscillator
– 10k ohm resistor
– led and a resistor
– 100nF capacitor
– 100uf capacitor
– two 22pf capacitors
– 7805 voltage regulator
– terminal connector
– single side pcb board

Source

Internet of Things PCB considerations for Startups

Since IoT products are so recent, you would assume that getting an IoT printed circuit board (PCB) project off the ground starts by reinventing the wheel and experiencing a massive amount of technical troubles and delays. This is false.
Nevertheless it doesn’t suggest IoT startups have a evident way to fame and fortune. Facing them is quite a lot of design and manufacturing factors which are special to these small products. These points should be thought of for the fresh new IoT product to succeed.

On the plus side, it’s vital for IoT startups to comprehend that the basic foundation for a successful cool product does exist. This means experience and knowledge relating to the design, fabrication and assembly of these kinds of advanced products are available. Also, the most sage advice is for prudent IoT product business men and forerunners to take the advice that encountered electronics manufacturing services or EMS providers have to offer. These businesses as well as their engineering staffs have undertaken the work with groundbreaking IoT firms in Silicon Valley taking part in the early stages of this rising segment.

The PCB of an IoT device is a unique beast than the traditional one, which is substantially larger and flat. IoT gadgets, on the other hand, are comprised mainly of either rigid-flex or flex circuit assemblies, which include their very own sets of design layout, fabrication and assembly points and intricacies.

Layout

A key consideration is to seek knowledgeable designers who’ve finished a whole lot of rigid-flex PCB designs. PCB space for an IoT device is scarce. So you’d like the designer to have direct layout expertise to productively design key components on that limited space.

On top of that, the majority of IoT units are not fixed; they obtain substantial movement and turning. Here, the knowledgeable designer plays an essential role in figuring out bend ratios and lifecycle iterations as a important part of a design. Various other key design layout points incorporate signal trace thickness, number of rigid and flex circuit layers, copper weight and stiffener placement. Stiffeners are widely-used on flex circuits to make sure that components attached to the flex circuit continue to be properly in position to stay away from movement.

An additional factor is through-hole part placement in rigid-flex circuits. Why’s that important? A majority of IoT items are founded upon surface mount device(SMD) placement. But nonetheless , there may be through-hole components, which are normally attached to either the rigid portion or the flex area of the board. Through-hole components are generally utilized to connect input/output or I/O signals to the outer world. Doing this, those signals can be displayed by using an LCD or LED monitor. Through-hole part placement is a significant concern in an IoT system considering that when used on the flex part of the board, appropriate stiffeners ought to be designed and implemented for effective assembly.

At last in the layout category, the heat that components generate is required to be thought of. IoT units are starting to be more complicated with rigid-flex and flex circuits featuring in excess of 12 to 14 layers. A few units are digital. But nonetheless , increasingly analog units are getting used in IoT units. Analog circuitry cranks out far more heat than digital ones. Consequently heat expansion and then contraction rate ought to be taken into account. In tech lingo, this is actually called the Coefficient of Thermal Expansion or CTE and the right handling of it.

Manufacturing

Selecting the right fabricator is really important and is linked to the EMS partner you have decided on. The fabricator you like require IoT PCB fabrication experience. Among key points here are making certain reliable adhesions between layers on both rigid and flex circuit sides, realizing all the crucial calculations and having a strong comprehension of when current moves from the rigid side to the flex side.

These fabricators must also have an in-depth expertise in exceptionally little parts just like 0201 and 00105 device packages, package-on-package, and the utilization of fine-pitch ball-grid array or BGA packaged devices.

They even should have experience with designing boards with highly tight tolerances in terms of footprint for those kinds of BGA devices, in terms of up-to-date capabilities like laser direct imaging for putting the solder mask on the board. They ought to have laser drills for via drilling with sizes of 5 mils or under since these IoT units could be so modest that a common drill size of 5 to 8 mils may not be all you need. They could need to go to a 3 mil, which means that you must have an leading-edge laser drilling capability in-house.

If you’re placing via-in-pad, it is a easy way to use the small space which is available on the rigid-flex board, but it poses difficulties for assembly. If vias aren’t entirely planar or flat in shape, it will become hard over the assembly of those tiny BGA packaged devices. That’s because non-planar surfaces may endanger the integrity of solder joints.

Occasionally via in pads leave bumps in the event they’re not cleaned thoroughly after installing the vias and gold finish on top. In the event there are bumps, then the solder joints in the assembly for those tiny BGA balls in those IoT devices wouldn’t be an ideal joint. It might create spotty connections, which can be a greater issue to cope with and remedy. It all boils down to which EMS partner you are using because they’re the ones who will decide on the fabrication factory to make a victorious IoT product for you.

PCB Assembly

It’s very important to look at knowledgeable EMS companies that have properly assembled IoT and wearable PCBs since they have unique tooling and fixtures readily out there, which are necessary for assembly in order to guarantee components are placed properly, exactly and the printing is performed correctly.

Printing can be quite a challenge for IoT units. If it’s a rigid-flex board, then you will find there’s a change between thicknesses of the rigid and flex circuit portions, which means a special fixture is needed to keep the complete rigid-flex board planar or 100 % flat to allow for effective printing to become attained.

Startups must be set to opt for the correct manufacturing partners and EMS companies. Doing this they can make sure that they have sufficient experience upfront to get the multitude of design, fabrication and assembly details efficiently performed as they are essential to a victorious and timely IoT product release.

MAKING OF DOUBLE SIDED PCB USING PHOTO SENSITIVE FILM (Photoresist Dry Film)



This Video is demonstration about making a double sided PCB at home using photo sensitive film (Photoresist Dry Film).

Source

IoT PCB ways to care for Startups

Considering the fact that IoT products are so innovative, you would assume that getting an IoT printed circuit board (PCB) project off the ground starts by reinventing the wheel and finding your way through a number of technical problems. That may be false.
But it doesn’t imply IoT startups have a very clear method to stardom. Facing them is quite a few design and manufacturing issues to consider which are completely unique to these small products. These points should be thought of for the fresh IoT product to gain success.

On the plus side, it’s something to think about for IoT startups to comprehend that the foundation for a successful cool product does exist. This indicates experience and knowhow regarding the design, fabrication and assembly of these complex products are readily available. Also, the best advice is for prudent IoT product enterprisers and leaders to heed the counsel that professional electronics manufacturing services or EMS providers have to offer. These companies along with their engineering staffs have already carried out the work with pioneering IoT firms in Silicon Valley entering into the very first of this rising field.

The PCB of an IoT product is a unique beast than the traditional one, which is notably larger and flat. IoT devices, alternatively, are made up mainly of either rigid-flex or flex circuit assemblies, which come with their own categories of design layout, fabrication and assembly points and technicalities.

Layout

A foremost thing to consider is to search out veteran designers who’ve performed a number of rigid-flex PCB designs. PCB space for an IoT product is tight. So you’d like the designer to have firsthand layout working experience to effectively design important elements on that limited area.

Likewise, nearly all IoT gadgets aren’t fixed; they obtain sizeable movement and folding. Here, the veteran designer plays a major role in calculating bend ratios and lifecycle iterations as a serious part of a design. Various other important design layout points comprise of signal trace thickness, number of rigid and flex circuit layers, copper weight and stiffener placement. Stiffeners are widely used on flex circuits to ensure elements connected to the flex circuit stay firmly constantly in place to prevent movement.

One more focus is through-hole part positioning in rigid-flex circuits. What makes that pretty important? A majority of IoT appliances are founded upon surface mount device placement. Yet , there could be through-hole elements, which are often put on either the rigid part or the flex portion of the board. Through-hole elements are in most cases designed to connect input/output or I/O signals to the exterior world. That way, those signals can be displayed using an LCD or LED monitor. Through-hole part placement is a significant concern in an IoT system due to the fact when applied to the flex section of the board, appropriate stiffeners have to be designed and implemented for appropriate assembly.

Then finally in the layout category, the high temperature which elements generate should be evaluated. IoT gadgets are getting more sophisticated with rigid-flex and flex circuits featuring more than 12 – 14 layers. Some gadgets are digital. Yet , gradually more analog units are being utilized in IoT units. Analog circuitry cranks out significantly more heat than digital ones. This would mean heat expansion and then contraction rate must be taken into account. In tech lingo, it is known as the Coefficient of Thermal Expansion or CTE and the appropriate handling of it.

Fabrication

Picking the right fabricator is extremely important and is linked to the EMS company you’ve picked. The fabricator you would like require IoT PCB fabrication experience. Among important points here are ensuring reliable adhesions between layers on both rigid and flex circuit sides, realizing all the crucial calculations and having a strong comprehension of when current moves from the rigid side to the flex side.

These fabricators should also have an in-depth comprehension of extremely compact components including 0201 as well as 00105 device packages, package-on-package, and the utilization of fine-pitch ball-grid array or BGA packaged devices.

Additionally they must have expertise in designing boards with extremely tight tolerances in terms of footprint for those sorts of BGA devices, in terms of up-to-date capabilities like laser direct imaging for putting the solder mask on the board. They must have laser drills for via drilling with sizes of 5 mils or under mainly because these IoT units could be so tiny that a normal drill size of 5 to 8 mils perhaps might not be all you need. They may have to go to a 3 mil, which means that you have to have an superior laser drilling capability in house.

In case you are placing via-in-pad, it’s really a easy way to utilize the small land that’s available on the rigid-flex board, nonetheless , it presents difficulties for assembly. If vias are not 100 % planar or flat in shape, it could be hard during the assembly of those tiny BGA packaged devices. This is because non-planar surfaces could threaten the integrity of solder joints.

Sometimes via in pads leave bumps in the event that they’re not cleaned appropriately after having the vias and gold finish at the top. In the event there are bumps, then the solder joints in the assembly for those tiny BGA balls in those IoT devices would not be a perfect joint. It may create irregular connections, which can be a greater issue to cope with and fix. It all boils down to which EMS company you are using because they’re the ones who will pick the fabrication house to make a thriving IoT device for you.

PCB Assembly

It’s critical to pay a visit to veteran EMS companies that have properly assembled IoT and wearable PCBs since they have specialized tooling and fixtures readily available, which are necessary for assembly to make certain components are placed effectively, exactly and the printing is carried out effectively.

Printing might be a problem for IoT units. If it’s a rigid-flex board, then you will find there’s a change between thicknesses of the rigid and flex circuit portions, which suggests a special fixture is required to keep the complete rigid-flex board planar or thoroughly flat to allow effective printing to be executed.

Startups should be prepared to opt for the suitable manufacturing partners and EMS enterprises. In this way they can make sure they have got enough experience ahead of time to get the multitude of design, fabrication and assembly details efficiently performed since they are key to a victorious and on-time IoT product release.

OrCAD Allegro How-To create complex footprints Tutorial OrCAD Cadence Allegro

www.orcad.co.uk Here we explore how to approach creating complex footprints with odd shape pads and missing pads. we first use the wizard that comes with all levels of PCB Editor and then we use a manual approach. though the latter is tedious, it describes some useful skills that will come in handy for you. http://www.parallel-systems.co.uk/images/PDF/Defining_padpath_psmpath.pdf

Source

IoT PCB things to consider for Startups

Due to the fact IoT products are so innovative, you would assume that getting an IoT printed circuit board (PCB) project off the ground starts by reinventing the wheel and dealing with a whole lot of technical hassle. That is most certainly not the case.
Nonetheless it doesn’t indicate IoT startups have a clear route to fame. Facing them is a number of design and manufacturing points to consider that are special to these small products. These things to consider need to be thought about for the fresh IoT product to be successful.

On the plus side, it’s necessary for IoT startups to be aware of that the basic foundation for a successful new product exists. This implies experience and knowhow involving the design, fabrication and assembly of such advanced products are available. Also, the best advice is for prudent IoT product business owners and leaders to heed the counsel that seasoned electronics manufacturing services or EMS suppliers are offering. These businesses along with their engineering team members already have completed the job with groundbreaking IoT companies in Silicon Valley joining the first stages of this growing market.

The PCB of an IoT product is a unique beast than the traditional one, which is much larger and flat. IoT units, on the contrary, comprise generally of either rigid-flex or flex circuit assemblies, which come with their very own categories of design layout, fabrication and assembly things to consider and detailed aspects.

Layout

A primary consideration is to try to get seasoned designers who have completed lots of rigid-flex PCB designs. PCB space for an IoT product is at a premium. So you want the designer to have directly layout practical knowledge to properly design vital elements on that limited room.

Even, nearly all IoT systems are not stationary; they receive sizeable movement and twisting. Here, the seasoned designer plays a leading role in figuring out bend ratios and lifecycle iterations as a serious part of a design. Some other vital design layout things to consider contain signal trace thickness, number of rigid and flex circuit layers, copper weight and stiffener placement. Stiffeners are utilized on flex circuits to assure elements attached with the flex circuit continue to be snugly in position in order to avoid movement.

A further aspect to consider is through-hole element positioning in rigid-flex circuits. How come is that very important? Many of IoT appliances are founded on surface mount device(SMD) placement. However , there can be through-hole elements, which are commonly affixed to either the rigid part or the flex area of the board. Through-hole elements are generally used to connect input/output or I/O signals to the exterior world. Like that, those signals can show up employing an LCD or LED monitor. Through-hole element placement is a crucial consideration in an IoT unit given that when utilized on the flex section of the board, appropriate stiffeners should be designed and put into use for appropriate assembly.

Last of all in the layout category, the high temperature that elements deliver is required to be thought of. IoT systems are starting to be intricate with rigid-flex and flex circuits featuring as many as 12 to 14 layers. Several systems are digital. However , progressively analog systems are being utilized in IoT systems. Analog circuitry delivers far more heat than digital ones. As a consequence heat expansion plus contraction rate are required to be evaluated. In tech lingo, this is actually generally known as the Coefficient of Thermal Expansion or CTE and the right therapy for it.

Fabrication

Finding the right fabricator is critical and is linked to the EMS business you’ve determined. The fabricator you would like needs to have IoT PCB fabrication experience. Amongst vital things to consider here are ensuring strong adhesions in between layers on both rigid and flex circuit sides, bearing in mind all the significant calculations and obtaining a thorough knowledge of when current transfers from the rigid side to the flex side.

These fabricators also must have an in-depth knowledge of amazingly little parts for example 0201 and 00105 device packages, package-on-package, and the employment of fine-pitch ball-grid array or BGA packaged devices.

They additionally should have experience in designing boards with pretty tight tolerances in terms of footprint for those types of BGA devices, in terms of up-to-date capabilities like laser direct imaging for putting the solder mask on the board. They should have laser drills for via drilling with sizes of 5 mils or under simply because these IoT devices could be so tiny that a common drill size of 5 to 8 mils perhaps might not be all you need. They could have to go to a 3 mil, meaning that you need to have an leading-edge laser drilling capability in-house.

In the event you’re placing via-in-pad, it’s a great way to utilize the small real estate which is available on the rigid-flex board, nonetheless , it creates trouble for assembly. If vias aren’t fully planar or flat in shape, it will become a difficulty through the assembly of those tiny BGA packaged devices. The reason is non-planar surfaces can put at risk the integrity of solder joints.

In some cases via in pads leave bumps when they’re not cleaned thoroughly after laying the vias and gold finish at the top. If there are bumps, then the solder joints in the assembly for those tiny BGA balls in those IoT devices may not be a perfect joint. It might create occasional connections, which can be a greater issue to handle and mend. It all boils down to which EMS business you’re working with because they’re the ones who will select the fabrication facility to make a profitable IoT item for you.

PCB Assembly

It’s essential to look at seasoned EMS companies that have proficiently assembled IoT and wearable PCBs since they have special tooling and fixtures readily existing, which are important for assembly to guarantee components are placed perfectly, exactly and the printing is completed in the right way.

Printing generally is a challenge for IoT systems. If it’s a rigid-flex board, then there exists a change between thicknesses of the rigid and flex circuit portions, indicating a special fixture is required to retain the complete rigid-flex board planar or fully flat to make effective printing to be carried out.

Startups should be geared up to discover the correct manufacturing partners and EMS businesses. Doing this they can guarantee they have ample experience early in advance to get the multitude of design, fabrication and assembly details effectively performed because they are key to a prosperous and on time IoT product release.

TRANSPARENT PCB SNO2 AND OSCILLATOR CIRCUIT APRIL2015



PCB (printed circuit board) – Placa de Circuito Impresso.

Estudante e professores do Ceará inventam o primeiro circuito com placa e trilhas condutoras transparentes.

Ainda ninguém no mundo tinha colocado componentes eletrônicos em uma placa de circuito transparente e também com as trilhas transparentes. O que existe são placas de vidro com trilhas de cobre, e como se sabe, o cobre não é transparente. Tal invenção e técnica inédita, pode servir de base para o futuro das placas de circuitos. E para que serviria? Suponha que um médico vai colocar um marca passo de plástico transparente, feito com esta placa transparente, mesmo os componentes não sendo transparentes como transistores, LEDs, resistores, etc…, só o fato da placa o ser, facilita enxergar através do marca passo, e ver se existe alguma infecção por trás. Outra aplicação seria usar em um quadricóptero de plástico transparente para espionar crimes e bandidos, sendo ele todo transparente, com exceção da bateria que poderia ser camuflada da cor do céu. Mais uma aplicação seria a de um mini submarino todo transparente, para estudar o habitat marinho sem impactar muito no visual, ou mesmos torres de observação nas florestas para estudos de animais. Uma vantagem é que as trilhas não se desmancham no ácido sulfúrico ou água. Sendo bem resistente à oxidação. É sem dúvida a primeira montagem de placa transparente do Brasil e do mundo, que usa componentes discretos. Feita no Ceará com baixo custo. Veja o vídeo em:

Este vídeo mostra como fazer uma placa de circuito impresso transparente. Ainda não existe esta placa com os componentes soldados. O que existe são as telas touch com transistores TFT (thin-film transistor), mas nenhuma com componentes discretos soldados, como capacitores, LEDs e transistores. Fizemos um óxido condutor mais rápido e barato que o ITO (indium tin oxide) o SnO2. Em menos de 15 minutos, e 10 segundos para borrifar o SnCl4 + metanol.

O circuito é um oscilador que usa do efeito avalanche, do vencedor do prêmio Nobel Leo Esaki, o mais simples circuito oscilador (http://en.wikipedia.org/wiki/Leo_Esaki).

http://cappels.org/dproj/simplest_LED_flasher/Simplest_LED_Flasher_Circuit.html

A placa é a prova de ácido e água, foi testada por uma hora no ácido sulfúrico concentrado.

Espera-se que este vídeo possa ajudar alunos e professores em novas descobertas para uma vida melhor e mais econômica.

Agradecimentos: UECE-FECLESC, UFC, Dr. Marcos Antonio and Dr. Sérgio Sombra.

SnO2, Thin film, PCB, transparent, circuit
__________________________________________________

This video shows how to make a transparent printed circuit board. Yet there is no such plate with welded components. What exists are the touch screens with TFT transistors (thin-film transistor), but no welded with discrete components such as capacitors, LEDs and transistors. We made a faster and cheaper than the conductive oxide ITO (indium tin oxide), the transparent SnO2. In less than 15 minutes and 10 seconds of spraying the SnCl4 + methanol.

The circuit is an oscillator that uses the avalanche effect, the Nobel laureate Leo Esaki prize, the simplest oscillator circuit (http://en.wikipedia.org/wiki/Leo_Esaki).

http://cappels.org/dproj/simplest_LED_flasher/Simplest_LED_Flasher_Circuit.html

The board acid and water proof, was tested for an hour in concentrated sulfuric acid.

It is expected that this video can help students and teachers in new findings for better and more economic life with the electronics.

Thanks: UECE-FECLESC, UFC, Dr. Marcos Antonio and Dr. Sérgio Sombra.

Source

Internet of Things PCB ways to care for Startups

Seeing that IoT appliances are so cutting edge, you would consider that getting an IoT printed circuit board (PCB) project off the ground starts by reinventing the wheel and encountering a great number of technical headache. That is most certainly incorrect.
Nevertheless it doesn’t convey IoT startups have a evident approach to stardom. Facing them is quite a lot of design and manufacturing considerations that are distinctive to these small products. These points have to be factored in for the new IoT product to reach your goals.

On the plus side, it’s essential for IoT startups to learn that the basic foundation for a successful awesome product exists. It implies experience and knowledge concerning the design, fabrication and assembly of such state-of-the-art products are existing. Additionally, the best advice is for smart IoT product business men and innovators to listen to the recommendations that qualified electronics manufacturing services or EMS vendors provide. These corporations together with their engineering team members have already conducted the job with revolutionary IoT corporations in Silicon Valley taking part in the early stages of this rising industry.

The PCB of an IoT device is a different beast than the traditional one, which is substantially larger and flat. IoT devices, in comparison, are comprised mainly of either rigid-flex or flex circuit assemblies, which include their own groups of design layout, fabrication and assembly points and nuances.

Layout

A key concern is to try to get skilled designers who have performed numerous rigid-flex PCB designs. PCB space for an IoT device is tight. So you want the designer to have directly layout experience to properly design essential parts on that modest area.

Additionally, nearly all IoT devices aren’t fixed; they bring appreciable movement and turning. Here, the skilled designer plays a key role in assessing bend ratios and lifecycle iterations as a vital part of a design. Other essential design layout points include things like signal trace thickness, number of rigid and flex circuit layers, copper weight and stiffener placement. Stiffeners are employed on flex circuits to be certain that parts mounted on the flex circuit remain properly constantly in place to avoid movement.

The other consideration is through-hole part positioning in rigid-flex circuits. How come is that vital? A majority of IoT devices are founded upon surface mount device placement. Nevertheless , there may be through-hole parts, which are usually attached to either the rigid portion or the flex portion of the board. Through-hole parts are in most cases utilized to connect input/output or I/O signals to the exterior world. That way, those signals can be shown utilizing an LCD or LED monitor. Through-hole part placement is an essential concern in an IoT unit considering that when utilized on the flex part of the board, right stiffeners have to be designed and employed for ideal assembly.

Lastly in the layout category, the heat which parts bring in should be deemed. IoT devices are starting to be complicated with rigid-flex and flex circuits featuring approximately 12 – 14 layers. Some devices are digital. Nevertheless , increasingly analog systems are getting used in IoT systems. Analog circuitry produces way more heat than digital ones. What this means is heat expansion plus contraction rate ought to be taken into consideration. In tech lingo, this is actually generally known as the Coefficient of Thermal Expansion or CTE and the appropriate control over it.

Fabrication

Choosing the best fabricator is crucial and is linked to the EMS enterprise you have determined. The fabricator you would like must have IoT PCB fabrication experience. Amongst essential points here are making certain durable adhesions between layers on both rigid and flex circuit sides, knowing all of the critical calculations and having a great knowledge of when current transfers from the rigid side to the flex side.

These fabricators also have to get an in-depth expertise in remarkably little components just like 0201 and also 00105 device packages, package-on-package, and the utilization of fine-pitch ball-grid array or BGA packaged devices.

In addition they should have knowledge of designing boards with fairly tight tolerances in terms of footprint for those types of BGA devices, in terms of up-to-date capabilities like laser direct imaging for putting the solder mask on the board. They must have laser drills for via drilling with sizes of 5 mils or under mainly because these IoT products could be so tiny that a standard drill size of 5 to 8 mils may well not be sufficient. They might ought to go to a 3 mil, which means you have to have an superior laser drilling capability indoors.

In the event you are placing via-in-pad, it is a great way to take advantage of the small space that’s available on the rigid-flex board, nonetheless , it creates difficulties for assembly. If vias are not fully planar or flat in shape, it becomes difficult through the assembly of those tiny BGA packaged devices. This comes about because non-planar surfaces can threaten the integrity of solder joints.

Oftentimes via in pads leave bumps if they’re not scoured appropriately after laying the vias and gold finish at the top. In cases where there are bumps, then the solder joints in the assembly for those tiny BGA balls in those IoT devices would not be an ideal joint. This may create irregular connections, which can be a bigger issue to deal with and work on. It all boils down to which EMS enterprise you’re using because they’re the ones who will decide on the fabrication factory to make a triumphant IoT device for you.

PCB Assembly

It’s critical to head over to skilled EMS companies that have effectively assembled IoT and wearable PCBs because they have specialized tooling and fixtures already existing, which are essential for assembly to reassure components are placed perfectly, precisely and the printing is carried out correctly.

Printing can be a problem for IoT systems. If it’s a rigid-flex board, then there exists a difference between thicknesses of the rigid and flex circuit portions, which suggests a special fixture is necessary to maintain the complete rigid-flex board planar or thoroughly flat to allow effective printing to be carried out.

Startups ought to be ready to pick the most suitable manufacturing partners and EMS enterprises. In this way they can be certain they’ve ample experience before hand to get the multitude of design, fabrication and assembly details effectively performed since they are crucial to a victorious and timely IoT product roll-out.

Sigrity 2015 Solution Enables LPDDR4 JEDEC Electrical Checks on PCB and IC Packages



Designs using LPDDR4 protocols are a key factor in mobile devices such as smartphones, tablets, and even Internet of Things devices. Cadence Sigrity™ technology can be combined with its industry-first multi-protocol DDR4 and LPDDR4 IP solution. Find out how the Allegro® Sigrity signal integrity and power integrity solution ensures your controller-to-LPDDR4 memory connectivity will work according to the JEDEC specification whether you are stacking memory in a package-on-package configuration or implementing a topology with discrete controller and memory components on a PCB.

Source

Internet of Things PCB ways to care for Startups

Because IoT appliances are so new, you would believe that getting an IoT printed circuit board (PCB) project off the ground starts by reinventing the wheel and suffering from a great deal of technical problem. That is most certainly untrue.
Nonetheless it doesn’t indicate IoT startups have a evident road to fame and fortune. Facing them is numerous design and manufacturing concerns which are distinctive to these small products. These points need to be factored in for the fresh new IoT device to be successful.

On the plus side, it’s vital for IoT startups to be aware of that the basic foundation for a successful awesome product does exist. This suggests experience and knowledge concerning the design, fabrication and assembly of these types of leading-edge products are out there. Also, the most sage advice is for advisable IoT product business owners and leaders to heed the counsel that knowledgeable electronics manufacturing services or EMS suppliers are offering. These businesses and also their engineering staffs already have conducted the task with groundbreaking IoT companies in Silicon Valley entering into the first stages of this surfacing market.

The PCB of an IoT product is a distinct beast than the traditional one, which is extensively larger and flat. IoT devices, conversely, are made up mostly of either rigid-flex or flex circuit assemblies, which come with their own sets of design layout, fabrication and assembly points and technicalities.

Layout

A principal concern is to search out skilled designers who’ve undertaken a great deal of rigid-flex PCB designs. PCB space for an IoT product is limited. So you want the designer to have direct layout working experience to properly design significant elements on that limited room.

Moreover, nearly all IoT devices aren’t fixed; they sustain sizeable movement and twisting. Right here, the skilled designer plays an essential role in working out bend ratios and lifecycle iterations as a significant part of a design. Other significant design layout points contain signal trace thickness, number of rigid and flex circuit layers, copper weight and stiffener placement. Stiffeners are used on flex circuits to make sure that elements attached to the flex circuit keep on being firmly in place in order to avoid movement.

One more aspect to consider is through-hole part positioning in rigid-flex circuits. How come is that crucial? Most of the IoT appliances are founded on surface mount device placement. Nevertheless , there can be through-hole elements, which are in most cases attached to either the rigid portion or the flex portion of the board. Through-hole elements are commonly utilized to communicate input/output or I/O signals to the outer world. Like that, those signals can show up utilising an LCD or LED monitor. Through-hole part placement is a significant thing to consider in an IoT device given that when applied on the flex area of the board, appropriate stiffeners ought to be designed and employed for appropriate assembly.

And finally in the layout category, the high temperature that elements deliver must be thought about. IoT devices are ever more sophisticated with rigid-flex and flex circuits featuring more than 12 to 14 layers. A few devices are digital. Nevertheless , progressively more analog units are being exercised in IoT units. Analog circuitry delivers way more heat than digital ones. It implies heat expansion and contraction rate must be thought about. In tech lingo, this is called the Coefficient of Thermal Expansion or CTE and the appropriate management of it.

Manufacturing

Selecting the right fabricator is very important and is linked to the EMS business you have chosen. The fabricator you like has to have IoT PCB fabrication experience. Among significant points here are making certain strong adhesions in between layers on both rigid and flex circuit sides, figuring out all the crucial calculations and obtaining a great know-how about when current transfers from the rigid side to the flex side.

These fabricators must also have an in-depth comprehension of tremendously small parts like 0201 and also 00105 device packages, package-on-package, and the use of fine-pitch ball-grid array or BGA packaged devices.

Furthermore they should have experience with designing boards with pretty tight tolerances in terms of footprint for those types of BGA devices, in terms of up-to-date capabilities like laser direct imaging for putting the solder mask on the board. They ought to have laser drills for via drilling with sizes of 5 mils or under since these IoT products could be so modest that a normal drill size of 5 to 8 mils would possibly not be enough. They may need to go to a 3 mil, which means you should have an leading-edge laser drilling capability on-site.

In the event that you are placing via-in-pad, it is a good way to make use of the small space that’s available on the rigid-flex board, but it presents problems for assembly. If vias are not totally planar or flat in shape, it will become a difficulty all through the assembly of those tiny BGA packaged devices. That’s because non-planar surfaces can put at risk the integrity of solder joints.

Occasionally via in pads leave bumps in cases where they’re not scrubbed correctly after installing the vias and gold finish at the top. If there are bumps, then the solder joints in the assembly for those tiny BGA balls in those IoT devices might not be an appropriate joint. It may create spotty connections, which might be a larger issue to handle and take care of. It all boils down to which EMS business you’re choosing because they’re the ones who will select the fabrication plant to make a profitable IoT product for you.

PCB Assembly

It’s critical to pay a visit to skilled EMS companies that have proficiently assembled IoT and wearable PCBs since they have specialized tooling and fixtures already obtainable, which are required for assembly to reassure components are placed the proper way, exactly and the printing is performed in the right way.

Printing is usually a issue for IoT units. If it’s a rigid-flex board, then you can find a difference between thicknesses of the rigid and flex circuit portions, indicating a special fixture is required to keep the complete rigid-flex board planar or utterly flat to make effective printing to become realized.

Startups must be set to find the suitable manufacturing partners and EMS enterprises. By doing this they can be certain they’ve enough experience early in advance to get the multitude of design, fabrication and assembly details effectively performed because they are essential to a victorious and prompt IoT product release.

Aluminum Electronic Board Facility Positioned in China Mainland



This is an auto insertion machine for PCB assembly from Southern Machinery in China, very efficient and reliable but low cost. please contact me at : jasonwu@smthelp.com or w25605@gmail.com if you are interested. We design and manufacture SMT equipment in Shenzhen China;

1, LED SMT solutions : one full line (1.2m printer + 20k CPH LED mounter + 6 zone oven) price lower at usd 50K.
http://www.smthelp.com/product/led-smt-machine/

2, Odd form insertion machine:
http://www.smthelp.com/product/s-7000i-odd-form-inserter/

3, Pneumatic stencil cleaner: —No need electronic power, no fire and detonate caused; Simple operation, only Start, Stop and Reset, that is all;, Protecting Environmental, water recycle ;Lower consumption .
http://www.smthelp.com/product/stencil-cleaner-machine/

4, Spare parts support.
See why we are proud to be Southern Machinery .
http://www.smthelp.com/product/pcb-design-guideline/
1, LED Mounter
https://www.youtube.com/channel/UC4Z_P3S6qAYLHnlE-DU2OSA
2, Through hole technilogy
https://www.youtube.com/channel/UC6Pj74wjjEjtp-jneRoSL9Q
3,SMT Machine For PCB Assembly
https://www.youtube.com/channel/UCke0s_OM0eKflD8WmGSLm5A
4,Odd Form Insertion Machine/Feeder
https://www.youtube.com/channel/UCactVXP8IrU3l-vItOODRCA
5,AI SMT spare parts
https://www.youtube.com/channel/UCMuFHjsSuaIXnc3_3yNcwzw
6, Stencil Cleaner Machine Southern Machinery
https://www.youtube.com/channel/UCnMRyXlBFqJZHYuqaZVoK4Q
7,SMT pcb assembly LED
https://www.youtube.com/channel/UClX0iEG2bvJq8yUBEDamgDw

-~-~~-~~~-~~-~-
Please watch: “How to operate Auto Insertion Machine to Assembly PCB by Through hole technology”

Email: info@smthelp.com
-~-~~-~~~-~~-~-

Source

Aluminum Electronic Board Facility Positioned in China Mainland

12-pwb-pcb-factories-01

Leadsintec Co.,Ltd

Leadsintec Co.,Ltd is an electronic manufacturing service (EMS) provider based in Shenzhen China since 2004. As an ISO 9001 licensed electronics contract producer, our company offers a assortment of circuit card, component procurement, circuit card assy, box-build, testing services.

On account of the past 11+ years rich expertise in production, Leadsintec has received a great standing in China and worldwide. Our items are mainly applied in the Consumer Electronics , Industrial, Automation, Vehicle, Agriculture, Defense, Aerospace, Medical and also Home security industries.

Our mission is to assist small , mid-sized clients in minimizing their cost by offering all-encompassing , high-mixed, low and medium volume services. Utilizing our seasoned system supervisors, procedure specialists, production team members and procurement pros, we are now competent to fully grasp and go above and beyond your wants.

Leadsintec’s producing factories integrate clean workshops and excellent high-speed SMT lines. Our chip placement precision can easily hit +0.1MM on integrated circuit parts. It signifies we’re able to work with virtually all kinds of integrated circuits, which include SO, SOP, SOJ, TSOP, TSSOP, QFP, BGA as well as U-BGA. Aside from that, we’re able to deliver 0201 chip placement, through-hole part insertion and ended merchandise fabrication, test and packing.

12-pwb-pcb-factories-01

STG

According to : http://www.china-pcbassembly.com/factory-view-n100-1.html

Turn-key Circuit Card assy service vendor

(Serving white-label Circuit Card )

STG is a prime professional Circuit Card and PCBA manufacturer in China, which supplies OEM/ODM service for global clients . With years of expertise, STG is not merely a manufacturer, but additionally a professional designer for creative concepts, new creations dependant upon buyers. Our selection is made up of many various industries, like electronic devices, telecoms, industrial products , automotive assemblies, medical equipment and many others.

Our main services can include electronics and metal casing mfg, including printed circuit boards Circuit Card Mfg, element procuring, Circuit Card assy, plastic/metal house build, die-casting plus made to order Mfg. With skilled office staff from STG properly trained, their capabilities will be remarkable.

Get in contact with STG

China Shenzhen Office

TEL: +86-0755-27929725
FAX: +86-0755-27929724
Email: sales@stgpcba.com

Location: Huolibao Building 5F , Technology Park, Nanshan, Shenzhen, 518100, China.
Web-site: www.china-pcbassembly.com

Hong Kong Office

Telephone: 852-36458129
Fax: 852-36458092
Email: marketing@stgpcba.com.
Location: 11/F FRONT BLK,HANG LOK BLDG 130 WING LOK ST,SHEUNG WAN, Hong Kong
Website: www.china-pcbassembly.com .

12-pwb-pcb-factories-01

Asia Pacific Circuits – Turnkey service for Circuit Card Assy & Circuit Card Fab

According to : http://www.apc-pcbassembly.com/about-us-asia-pacific-circuits/

Asia Pacific Circuits Co., Ltd centers on Circuit Card Fab and assy, incorporating prototype and production PCBs. Here at APC Our company offers top standard and great value Electronic Contract Manufacturing Services – which include Circuit Card mfg, components sourcing and full PCB assy. With state-of-the-art facility and technology advances, we accommodate clientele in a vast array of industries.

We are committed to your complete satisfaction. Time to market is a symbol of how the company’s time-critical, Turnkey Fab services allow purchasers to minimize the time essential to develop new products and deliver them to market.

Asia Pacific Circuits manufacturing facilities are ISO9001-2008 eligible, ISO 14001 (Environmental), UL Recognised, TS16949, TSTS13485 approved, IPC-A-600 and IPC-A-610 3 certified. Our company has a PCB assy factory and a Circuit Card manufacturing factory in China Shenzhen. Asia Pacific Circuits service scale covers – Circuit Card Prototype, low to mid and high volume Circuit Card Fab and Circuit Card assy services.

After APC staff members 18 years of conscientious efforts to create a awesome sales network, We founded a overall management system, acquired the ISO9001: 2008 international quality management system certification. We possess a highly qualified sales, Circuit Card Fab and PCB assy under one roof, better the sales procedure and producing and testing machines to make sure only quality boards are delivered to the purchaser .

Reach out to Us

Asia Pacific Circuits Co., Ltd
Office Telephone number: +86-755-2758-4025
Office Facsimile: +86-755-2758-4028
Email: sales@apc-pcbassembly.com
Office Location: # 55A, Baoan Avenue, Bao’an District, Shenzhen , 518102, China
Manufacturing area Location: Gaoqiao Industry Park East, Yanlong Avenue, Longgang District, Shenzhen, China

12-pwb-pcb-factories-01

Shenzhen MOKO Technology Ltd

We Present a Large Choice of Printed Circuit Board Options to Accommodate Your complete PCB Specifications.

Moko Technology Ltd founded in 2001, positioned in Shenzhen, China. is an expert in PCB board manufacturing + PCB board assembly, located in Shenzhen, Guangdong, China. We are devoted to fabricating single-sided , double-sided and multilayer PCB boards, to a maximum of 18 layers. In addition, we are able to deliver elements sourcing and one-stop PCB board assembly service.

With over 10 years in the world of PCB board prototype and fabricating, we are committed to matching the demands of our clients from a variety of industries in terms of quality level, shipping and delivery, expense and every other request(s). As among the many most skilled PCB board producers in China, we are confident to be your most reliable business partners .

In Shenzhen, we are honored as the first-class supplier for a number of firms internationally. We can offer you all kinds of services including PCB board manufacturing and PCB board assembly for from prototype orders through batch orders.

Regarding PCB board assembly, utilizing 8 high-speed SMT assembly lines brought in from Japan Yamaha and Sony, we make our uttermost to meet up with our clients’ needs.

One Stop Service: Above Printed Circuit Board Fab

Our enhanced competence in printed circuit boards is not simply tied to PCB board manufacturing but extends to virtually all involved services which include PCB board design / layout and PCB board assembly. Our highly skilled design consultants can assist you to accomplish economical efficiency in your multi-layer design and layout or we’re able to design your circuit from scratch: from a easy double-sided board to sophisticated rigid-flex PCB applications. In 2012, our subcompany – Shenzhen Eastwin Trading Ltd set up so as to facilitate abroad Business.

We have our 25,000 sq. ft. state of the art manufacturing area to make available the quality brilliance you wish…

We’ve attained the ISO9001:2000, ISO14001, UL plus ROHS accreditations. At present our PCB board volume comes to One thousand square meters on a daily basis, and as for PCB board assembly can achieve 100,000,000 items month-to-month.

We sincerely understand that our sound service and practical experience will fully satisfy your expectations. Dependability and advancement are the energies that deliver our popularity. We are the most helpful alternative to meet your requirements.

For more services, more concessions, or 100 percent free samples kindly

Contact Us

Shenzhen MOKO Technology Ltd.
TEL: 86-75523573370
Facsimile: 86-75523573370-808
Email: alex@szeastwin.com
Location : 4F,Buidling #2,Guanghui Science Zone,Minqing Road, Longhua Town, Shenzhen , China
Zip Code: 518109

Depending on http://www.mokotechnology.com/about/

1- ESP8266 Development Board and Weather Station PCB Designing in NI Multisim and Ultiboard



ESP8266 Development Board and Weather Meter PCB Designing in NI Multisim:
I would be designing Smart Home Based Weather Station based on ESP8266 and DHT22 in NI Multisim and Ultiboard

Source

Internet of Things PCB ways to care for Startups

Considering IoT appliances are so fresh, you would think that getting an IoT printed circuit board (PCB) project off the ground starts by reinventing the wheel and under-going a whole lot of technical problems. That is definitely untrue.
But it doesn’t suggest IoT startups have a very clear approach to stardom. Facing them is various design and manufacturing things to consider that are unique to these small products. These concerns have to be taken into consideration for the fresh IoT device to achieve its purpose.

On the plus side, it’s essential for IoT startups to understand that the foundation for a successful awesome product does exist. This suggests experience and knowledge regarding the design, fabrication and assembly of these types of sophisticated products are out there. Also, the best advice is for advisable IoT product business men and creators to take the advice that knowledgeable electronics manufacturing services or EMS providers are offering. These corporations along with their engineering employees already have implemented this work with pioneering IoT businesses in Silicon Valley getting into the beginning of this appearing market.

The PCB of an IoT product is another beast than the traditional one, which is greatly larger and flat. IoT devices, conversely, comprise mainly of either rigid-flex or flex circuit assemblies, which come with their own groups of design layout, fabrication and assembly concerns and nuances.

Layout

A primary consideration is to find qualified designers who’ve finished loads of rigid-flex PCB designs. PCB space for an IoT product is confined. So you want the designer to have direct layout knowledge to correctly design vital elements on that little room.

On top of that, virtually all IoT systems aren’t fixed; they incur significant movement and turning. Right here, the qualified designer plays a key role in assessing bend ratios and lifecycle iterations as a significant part of a design. Other vital design layout concerns contain signal trace thickness, number of rigid and flex circuit layers, copper weight and stiffener placement. Stiffeners are widely used on flex circuits to reassure elements attached to the flex circuit continue to be firmly constantly in place to avoid movement.

An extra concern is through-hole component placement in rigid-flex circuits. How come is that key? A lot of IoT products are based on surface mount device placement. But nonetheless , there might be through-hole elements, which are normally attached to either the rigid part or the flex part of the board. Through-hole elements are often designed to communicate input/output or I/O signals to the outer world. That way, those signals can be displayed having an LCD or LED monitor. Through-hole component placement is a crucial thing to consider in an IoT unit as when applied on the flex area of the board, proper stiffeners ought to be designed and implemented for effective assembly.

And finally in the layout category, the high temperature that elements generate is required to be taken into consideration. IoT systems are starting to be more sophisticated with rigid-flex and flex circuits featuring around 12 – 14 layers. Several systems are digital. But nonetheless , increasingly analog devices are being exercised in IoT devices. Analog circuitry delivers significantly more heat than digital ones. This simply means heat expansion and contraction rate has to be thought of. In tech lingo, this is actually referred to as the Coefficient of Thermal Expansion or CTE and the effective handling of it.

Manufacturing

Selecting the best fabricator is crucial and is linked to the EMS corporation you have picked out. The fabricator you’re looking for needs to have IoT PCB fabrication practical experience. Amongst vital concerns here are ensuring strong adhesions in between layers on both rigid and flex circuit sides, comprehending all of the important calculations and obtaining a thorough expertise in when current transfers from the rigid side to the flex side.

Such fabricators must also have an in-depth know-how about extremely little parts for instance 0201 and 00105 device packages, package-on-package, and the utilization of fine-pitch ball-grid array or BGA packaged devices.

They also must have knowledge of designing boards with highly tight tolerances in terms of footprint for those types of BGA devices, in terms of up-to-date capabilities like laser direct imaging for putting the solder mask on the board. They need to have laser drills for via drilling with sizes of 5 mils or under because these IoT units could be so little that a normal drill size of 5 to 8 mils perhaps may not suffice. They might have to go to a 3 mil, which indicates that you need to have an cutting-edge laser drilling capability on-site.

In the event you’re placing via-in-pad, it’s really a fantastic way to take advantage of the small real estate that’s available on the rigid-flex board, however , it creates problems for assembly. If vias are not 100 % planar or flat in shape, it may be a challenge during the assembly of those tiny BGA packaged devices. That’s because non-planar surfaces could endanger the integrity of solder joints.

Occasionally via in pads leave bumps in the event that they’re not scrubbed appropriately after placing the vias and gold finish on top. If there are bumps, then the solder joints in the assembly for those tiny BGA balls in those IoT devices wouldn’t be a great joint. It could create irregular connections, which can be a larger issue to deal with and solve. It all boils down to which EMS corporation you are using because they’re the ones who will pick the fabrication house to make a thriving IoT item for you.

PCB Assembly

It’s critical to look at qualified EMS companies that have efficiently assembled IoT and wearable PCBs because they have specialized tooling and fixtures readily available, which are important for assembly to make sure that components are placed appropriately, precisely and the printing is conducted the right way.

Printing generally is a problem for IoT devices. If it’s a rigid-flex board, then there is a difference between thicknesses of the rigid and flex circuit portions, indicating a special fixture is needed to keep the complete rigid-flex board planar or 100 % flat to get effective printing to become executed.

Startups need to be geared up to find the right manufacturing partners and EMS businesses. By doing this they can guarantee they’ve adequate experience in advance to get the multitude of design, fabrication and assembly details correctly performed as they are essential to a lucrative and on time IoT product roll-out.

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