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Quality Control of PCBA Circuit Board Machining
Mar 23,2023
The whole process of PCBA circuit board machining includes PCB processing, component procurement and inspection, SMT chip and DIP plug-in after welding, etc. The whole PCBA circuit board processing process involves a wide range, including many quality control details. If there is no very strict quality control standards, it will lead to PCBA circuit board quality abnormal, the inspection standards...
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Classification of the PCB high-frequency boards
Mar 30,2023
With the rapid development of science and technology, more and more equipment is designed for microwave frequency band (> 1GHz) or even millimeter wave field (30 ghz) applications, which also means that the frequency is getting higher and higher for the circuit board substrate, for example, the substrate material needs to have excellent electrical performance and good chemical stability. With t...
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Multi-layer PCB stack design
Apr 04,2023
Multilayer PCB or multilayer printed circuit boards are circuit boards composed of two or more conductive layers (copper layers). The copper layer is pressed together by the resin layer (prepreg). Due to the complexity of the multilayer PCB manufacturing process, low production volume, and difficulty in rework, their prices are relatively higher than a single layer and double-sided PCB. Multi-laye...
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The main factors affecting the thermal conductivity of aluminium-based circuit boards
Apr 07,2023
The thermal conductivity of aluminium-based circuit boards can be affected by several factors, including: Composition:The composition of the aluminium-based circuit board can greatly impact its thermal conductivity. For example, the presence of impurities or alloying elements can reduce the thermal conductivity. Thickness: The thickness of the aluminium layer in the circuit board can also have an ...
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Why are most printed circuit boards green?
Apr 07,2023
If you are asked what colour a printed circuit board is, I believe the first response is green. Printed circuit boards are basically made up of pads, vias, solder resist layers, silkscreen layers, copper traces, various components and other parts. Copper is a more active metal, in the air is easy to react with the oxygen in the air, in order to prevent copper vaporisation, will use a special ink, ...
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What is the difference between FPC flexible boards and PCB rigid boards？
Apr 10,2023
Flexible printed circuit (FPC) boards and rigid printed circuit boards (PCBs) are two types of circuit boards used in electronic devices. The main difference between FPC and PCB is their flexibility and rigidity. FPC boards are made of a flexible material such as polyimide or polyester film, which allows the board to be bent, twisted, or folded to fit into tight spaces or conform to the shape of t...
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Precautions for purchasing HDI blind and buried hole circuit boards?
May 03,2023
As the current design of portable products is developing toward miniaturization and high density,the difficulty of PCB design is also increasing, which puts forward higher requirements for PcB processing technology. Most of the current portable products use the BGA package with a pitch of less than 0.65mm, and the design process of blind and buried holes is used. So what is a blind and buried hole...
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Half Hole PCB
May 03,2023
What is a Half Hole PCB? Half-hole PCB means that one drill hole (drill, gong groove) is drilled, and then the second drill, shape process, and finally half of the metallized hole (groove) is reserved. Module PCBs are basically designed with half holes, mainly for the convenience of welding, small module area, and many functional requirements. The usual half hole is to design a hole on the edge of...
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