source:Industry News release time:2021-11-11 Article author:sznbone Popular:pcb
If the water droplets fall between the pins of the electronic components on the circuit board, the circuit board will not be damaged immediately when the circuit board is not working or the power is cut off, but the time for the water droplets to penetrate into the lead or the printed circuit of the electronic component will take a long time , The pins of the parts will rust, and the feet will be broken due to corrosion, resulting in circuit board defects. If it rusts for a period of time, the printed lines may break and the circuit board may stop working.
The failure causes of wet circuit boards are divided into three categories:
1. The circuit parameters on the circuit board are changed, which causes the circuit board to malfunction.
2. The flexible circuit board circuit is short-circuited, causing the circuit board to malfunction.
3. The signal processing or transmission line on the circuit board is broken, causing the circuit board to malfunction.
Relevant measures can be formulated based on the three common faults of wet circuit boards to reduce or avoid the occurrence of circuit board failures caused by moisture on the circuit boards of the equipment. So as to avoid unnecessary losses
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