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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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