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How to prevent static electricity during SMT processing
May 21 , 2021
As we all know, during the patch processing of the components on the PCB, the static electricity generated from various aspects can change the characteristics of the components, causing the components to experience unstable performance or even damage.This is a problem caused by not taking correct anti-static measures. In order to avoid this problem, anti-static needs to make the following points: ...
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Chip out of stock！How does the PCBA factory survive and development
May 29 , 2021
Affected by international trade competition and fluctuations in the chip industry, since the end of 2020, not only domestic chip prices have soared, but also abroad. For example: ST, ADI, TI and other well-known brand chips, without exception, doubled or even dozens of times the price, making manufacturers and many electronic product research and development companies miserable, including the PCBA...
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What is the use of the PCB
Jun 21 , 2021
Printed circuit boards can be found on almost all electronic devices, so what is the purpose of printed circuit boards? The general purpose of a printed circuit board is to connect all the components that a electronic device may need. Provides a fixed position and mechanical support for the assembly of transistors, integrated circuits, resistors, capacitors, inductors and other components; realize...
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Where is AOI mainly used for
Jul 12 , 2021
With more and more advanced electronic equipment, the wiring on the PCB (printed circuit board) has become finer, the components have become smaller and the high density of assembly has also been improved. Now the visual inspection does not meet the requirements of SMT assembly quality inspection. Therefore, AOI (Automatic Optical Inspection Electronic Equipment), as a key method for detecting the...
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How to calculate the PCBA of cost
Jul 24 , 2021
How to calculate the overall cost of PCBA mainly includes a series of processes such as PCB manufacturing, component procurement, SMT chip processing, DIP plug-in and PCBA testing. According to different processes, the processes involved will be different, so the overall cost quotation of PCBA is relatively complicated. First, we need to know how the total cost of manufacturing PCBA is constituted...
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How to calculate the PCBA of cost
Jul 24 , 2021
How to calculate the overall cost of PCBA mainly includes a series of processes such as PCB manufacturing, component procurement, SMT chip processing, DIP plug-in and PCBA testing. According to different processes, the processes involved will be different, so the overall cost quotation of PCBA is relatively complicated. First, we need to know how the total cost of manufacturing PCBA is constituted...
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How should PCB and PCBA guarantee product quality
Aug 27 , 2021
Laboratory testing and finished product inspection are key links in electronic products and quality control. PCB manufacturers must meet IPC-A-600 E-II inspection standards to ensure product quality. Everyone knows that PCB manufacturers in small and medium batches can quickly customize them to meet the customer's delivery time. However, PCB manufacturing may have quality problems due to repeated ...
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pcb manufacturing flow chart
Dec 27 , 2021
1. Cutting Process: large sheet → cutting board according to MI requirements → edging → unloading 2. Drilling Process: stacked board pin → upper board → drilling → lower board → inspection 3. sink copper Process: rough grinding → hanging board → automatic copper sinking line → lower board → dip 1% dilute H2SO4 → thickened copper 4. graphics transfer Process: (blue oil process): grinding plate...
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