Electronics Forum | Sat Sep 20 07:11:28 EDT 2008 | Sean
Hello All, I used to hear that PCB with immersion silver finishing, its non component location pads, tend to be discolour (Yellowish) after went through heat cycle, such as reflow oven. However, if the component solderbility on the PCB is OK, can w
Electronics Forum | Mon Sep 05 01:38:12 EDT 2005 | plcc
I hv a PCB (mtrl is RF35). After going thru' reflow, we found yellowish stain on the solder pad (solder mask). It looks like burn-marks. The reflow temp use is 245oC. We tried running bare pcb under 220oC, there's minimum stain found (acceptable),how
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