Jun 7, 2025
FR4 Surface Treatment Technologies: Anti-Oxidation and Enhanced Solderability
In PCB manufacturing, proper FR4 surface treatment is crucial for both protecting copper traces from oxidation and ensuring reliable solder joints. This article explores the most effective surface finishing techniques used in the electronics industry today. Why FR4 Surface Treatment Matters FR4, the most common PCB substrate material, features copper traces that are vulnerable to oxidation when…