Paint peeling off the PCB board of the optical module
Cause Analysis: Incomplete surface preparation, insufficient curing, or degraded/expired ink. If you're facing a solder mask peeling or chipping issue on your PCB, you're likely dealing with a frustrating problem that can compromise the integrity and functionality of your board. There are various methods for removing coatings from PCBs, typically chosen based on the type of coating, the purpose of removal, and the impact on the PCB. Coatings can obscure component leads, pads, and vias—making soldering or desoldering a tricky business. The main purpose of soldermask is to protect the copper traces from oxidation, prevent solder bridges from forming between closely spaced. However, during PCB manufacturing, various problems often occur due to some mistakes.
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