The harm of dust to PCBA?
PCBA processing requires a lot of protective measures, such as dust-proof, moisture-proof, salt spray, anti-static, etc. Today we will mainly understand the dust-proof measures during PCBA processing. Anyone who is familiar with the PCBA industry knows that PCBA processing There are always various dust-proof measures in the process to prevent dust from adhering to the PCBA circuit board, so what harm will dust cause to the PCBA circuit board? What are the dust prevention measures? Let's take a closer look at it next.
1. The harm of dust to PCBA circuit board.
The harm of dust to the circuit board is not insignificant. If there is more dust attached to the circuit board during processing, it is easy to cause short circuit and other faults, which will cause the circuit board to fail to work normally and reduce the yield of production. Therefore, PCBA circuits are usually The processing of the board needs to be carried out in a clean room, generally at least in a million-level clean room, and there will be various dust-proof measures.
2. What are the dust prevention measures for PCBA processing.
① Dust-proof clothing: During PCBA processing, employees need to wear more slippery dust-free clothing when entering the clean room, so as to avoid the clothes from carrying dust.
② Air shower room: When entering the clean room, employees are required to enter the air shower room and rotate their bodies 365° for air shower, so as to further remove foreign objects such as clothes and dust attached to the body.
③ Conformal paint: In the process of processing, PCBA is usually coated with conformal paint, so as to further prevent the damage of dust to PCBA and also play the role of moisture-proof and corrosion-proof.
④ Vacuum packaging: After the PCBA processing is completed, it will also be stored in vacuum packaging to prevent dust from further adhering to the circuit board.
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