|Ask the Experts Index|
Jan 21, 2021
We need to perform some Package-on-Package (PoP) rework. The only package we need to rework is the top ...
Jan 20, 2021
Toe Fillet Requirements on Gull Wing Components
Is a toe fillet required on gull wing components? If it is not a requirement why is that ...
Jan 19, 2021
Gold Plating and Embrittlement
What is your opinion regarding gold plating removal to improve soldering? I believe in the past gold plating ...
Jan 18, 2021
Soldering Multilayer Ceramic Chip Capacitors
We are conducting rework that includes soldering a wire to one end of a heat sensitive multilayer ceramic ...
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 ...
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 ...
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 ...
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 ...
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 ...
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 ...
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