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Jan 15, 2021 Mixing Different SAC305 Solders We have been using SAC305 bar solder from one supplier. We now want to source it from a ... M.K. Jan 14, 2021 Dross Particles Sticking to PCBs We are wave soldering using 63/37 tin-lead solder. After wave, we are finding solder dross particles sticking the ... K.U Jan 13, 2021 Cleaning with Sodium Bicarbonate Is there an affect on PCBA long term reliability for assemblies cleaned with a "Sodium Bicarbonate" scrub, followed ... L. P. Jan 12, 2021 Conformal Coating Over Heat Sinks We have PCB assemblies that will be conformally coated using a had spray acrylic coating. Should we apply ... F.S. Jan 11, 2021 Flux Oozing from Insulated Wires We have a problem with flux and wiring. Our wires are stripped and tinned. It appears that throughout ... K.C. Jan 8, 2021 Conformal Coating in Low Humidity Environments Whereas conformal coating is excellent for high humidity protection - is there any performance impact when subjected to ... B.L. Jan 7, 2021 Tiny Solder Balls After Reflow We have been seeing tiny solder balls across our PCB's after reflow. We have baked the boards, cleaned ... G.H. Jan 6, 2021 Solder Paste Alloy Check We have a production line that runs mainly leaded paste. We accidentally assembled boards using lead-free paste and ... R.L. Jan 5, 2021 Gold Plated Hole Defects Recently we began wave soldering assemblies that have gold plated holes that are used for jumper wires. After ... C.W. Jan 4, 2021 Pad Missing ENIG Plating A fabricator recently notified us that, during the ENIG plating process, several pads had been "skipped" or missed ... S.M. |
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