Fr4 Pcb Circuit Board Assembly
Specification model: single-sided aluminum substrate, 6061 aluminum, plate thickness 2.0MM, copper thickness 2OZ, immersion gold, black oil white characters, introduction coefficient 1W/M.K, hole and substrate conduction, single piece size 54*54MM
Order Quantity: 650pcs
Manufacturing Engineering: Lead Free
Process flow: SMT+ packaging
Inspection requirements: according to company internal standards
Solder paste requirements: use custom Qiandao solder paste sn99Ag0.3 Cu0.7 (No. QD9038-Q11-4)
Reflow soldering requirements: welding time control 240-250 °, super 230 ° welding time in 40-60s
Cleaning method: hand wash, no residue on the board surface (including rosin, flux residue), focus on soldering iron and tin
SMT points: 41, no DIP process
Inspection requirements: General Standards implement IPC-610E-2
1.D1, D2 The first 3 pieces must be seen according to X-RAY. The infrared tube has no welding phenomenon. Every 1 hour or so in production, it is necessary to take more than one shot. X-RAY see D1, D2 welding condition, good welding. normal production;
2 Note that 1A1090A0 and 1A1090A1 are distinguished. The two PCBs are different. The BOM differs by one LK6 bit (1A1090A0 has no LK6 bit).
Solder paste requirements: Ag0.3/Cu0.7/20-38uM
Packing and transportation: White pearl cotton should be used for protection around the carton, which should be shockproof, anti-collision and anti-fall.