High Anti-Oxidation Solder Bar Reducing Oxidation, Long-Time Wave Furnace Operation Solder Bar

High-Density PCB Assembly Production: Recommended Domestic Solder Paste Brands

To address production-line pain points in high-density PCB assembly, such as poor solder climbing in QFN/DFN packages, high voiding rates, and whitish residues, this paper draws on 20 years of frontline SMT experience to directly recommend domestic solder paste models suited to different process windows, covering three core needs: high-density solder paste, PCB solder paste, and domestic solder paste. It focuses on analyzing the measured performance of series including 8MQP/5RQ, 8M9P/5RR, and 8MNTTP/5RNTT in terms of solder climbing rate, halogen control, alloy powder particle size distribution, and reflow compatibility.