How are pcb serial numbers marked on circuit boards?
PCB marking for identification involves laser etching, specialized inkjet printing, or high-temperature labels, with UV laser marking dominating 78% of the high-density market in 2025. Laser systems etch identifiers directly into the solder mask at depths of 25-50 microns, while polyimide labels utilize acrylic adhesives that survive $260°C$ reflow for up to 10 minutes. These […]
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