Why do PCBs need gold plating?
1.PCB surface treatment: Anti-oxidation, tin spraying, lead-free tin spraying, immersion gold, immersion tin, immersion silver, hard gold plating, full-board gold plating, gold finger, nickel-palladium gold OSP: low cost, good solderability, harsh storage conditions, short time, environmentally friendly process, good welding, flatness. Tin spraying: Tin spraying boards are generally multi-layer (4-46 layers) high-precision PCB samples, which…














