Tuesday, October 27, 2020

The best tips for high Speed PCB routing

 


When it comes to routing a circuit board a PCB designer has a difficult task. When high speed PCB routing and signals are involved things get more complicated. In an effort to help different PCB designers, a list of best high speed PCB routing practices has been made that will assist them in achieving that perfect high-speed design.

It was not that long when the word “high speed” didn’t exist in the vocabulary of PCB designers. However these days, it seems to be just opposite. At that time, the only concern was all about putting the puzzle pieces together and strategist your way through a physical board layout. But what with high speed design? Now here there is a bunch of invisible forces to worry about, things like electromagnetic interference which is also known as EMI, cross-talk, signal reflection and etc.

To handle the extra advanced computing needs of these devices high speed circuitry is required in dense PCB designs. Other than that is the RF portion of these devices which increases the complexity of their small yet powerful circuit boards. However to successfully design these boards, PCB designers need to balance the requirements of a board that has both high speed and RF PCB routing on it.

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Sunday, October 11, 2020

Understanding Thermal Profiling PCBs

 


Normally, in the production and assembly of electronic products, precise control of process parameters is essential. Usually this process is done by continuous monitoring and record process parameters which includes thermal profiling of PCBs. Basically, thermal profiling of PCB’s involves controlling the temperatures during the component soldering on the PCB.

What is Thermal Profiling for Assembly?

The common industry practice is to develop one of the three types of thermal profiles; it depends on PCB size and largely on guesstimates. Its consequences include a high probability of cold solder joints and damaged components. These issues sometimes lead to inordinate extra re-work and assembly costs and OEM product delays.

Also thermal profiling of PCB’s or temperature profiling is very important for any manufacturing process along with the heat treatment. Other than this it involves plotting the temperature at numerous points on a given product as it passes through thermal process. If you say typically, a thermal profile is a complex set of time-temperature data. That is why, the thermal profile is all about controlling the different dimensions like peak, soak, or slope, etc. that usually affect the process. It is an important part of efficient PCB design services that require advanced PCB manufacturing and assembly equipment.

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