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How to do circuit board inspection work?
2020-06-05
When do circuit board inspection work, it is not allowed to use a soldering iron for welding. It is strictly forbidden to directly test the TV, audio, video and other equipment without power isolation transformer with instruments and equipment whose shell
How to prevent board bending and board warping when PCB board passes through reflow furnace?
2020-05-26
We can take following 6 methods to prevent board bending and board warpage when PCB board passes through reflow furnace:1. Reduce the effect of temperature on the PCB board stress; 2. Using high Tg sheet; 3. Increase the thickness of the circuit board;
What is the quality standard of printed circuit board?
2020-05-22
The quality inspection of printed circuit board generally includes appearance inspection, connectivity inspection and solderability inspection.
What are the common types of PCB surface treatment?
2020-05-18
Common PCB surface treatments include hot air solder leveling (HASL), organic solderability preservatives (OSP), electrolytic gold,electroless nickel immersion gold(ENIG), immersion silver and immersion tin. Now let's learn their advantages and disadvanta
How to restore circuit schematic according to PCB circuit board
2020-05-14
In the PCB copy board design process, the circuit schematic is often drawn based on the actual object. Therefore, the method of mastering the PCB copy board physical diagram back to the circuit schematic diagram will be the primary procedure for the desig
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