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Published by：
KEYOU PCB
November 04,2019
PCBA processing is a complex processing process that requires inspection and cooperation in all aspects to produce high quality PCBA products.
1. Poor wetting: Poor wetting is manifested ...
Published by：
KEYOU PCB
October 30,2019
1. Indicate the grade of PCB printed board processing standard (general enterprises are divided into secondary standards).
The first level of consumption: only requires electrical performance, and ...
Published by：
KEYOU PCB
October 29,2019
The green color is solder resist ink. The main components are resin, talcum powder and pigment. Currently, the most famous ones on the market are Japan Sun Taiyo, Taiwan South Asia Resin, Taiwan Chang...
Published by：
KEYOU PCB
October 28,2019
First: What is the maximum temperature resistance of the pcb circuit board, and what is the temperature resistance time?
The maximum temperature resistance of the pcb board is 300 degrees, 5-10 sec...
Published by：
KEYOU PCB
October 26,2019
1. Requirements for SMC/SMD
Surface mount pcb The metal electrode of the assembled component should have a three-layer termination structure. The component package and solder joint can withstand mo...
Published by：
KEYOU PCB
October 25,2019
In the PCB copying process, the temperature and humidity control is out of order or the temperature of the exposure machine is too high, which sometimes causes the film to be deformed. If it is not im...
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