Surface finish on a flex PCB is not a cosmetic detail; it controls oxidation, solderability, contact reliability, and cost. This article compares ENIG, OSP, immersion silver, immersion tin, hard gold, and ENEPIG for real flex PCB use.
Aluminum core PCBs (MCPCBs) need the right surface finish for yield and reliability. Compare ENIG, lead-free HASL, OSP, immersion silver, and tin in SMT builds.
MC PCB.,Ltd, alongside Dongguan MaoChang Printed Circuit Board Limited，has focused on PCB manufacturing over 20 years. MaoChang Printed Circuit Board Limited, a professional PCB factory for Quick Turn PCB, Prototype PCB and High Mix Low Volume fabrication. With UL certification for Rigid FR-4 / High Frequency / Aluminum Based PCB production.
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