Ask the Experts Index
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863 expert questions.

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Jan 27, 2023
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 26, 2023
Automatic Insertion Causing Plated Hole Damage
During the automatic insertion of 2 pin components, and after clinching the pins, we encounter a small deformation ...

Jan 25, 2023
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 24, 2023
Causes of Annular Ring Dewetting
I have a question about selective annular ring dewetting. This failure occurs on Electroless Nickel/Immersion Gold (ENIG) Plating ...

Jan 23, 2023
Baking Concerns for Stacked Trays of Components
When we are baking multiple trays of parts stacked on top of each other in our oven, will ...

Jan 20, 2023
Pin in Paste Solder Dropping
Can someone help me with Pin in Paste to eliminate solder dropping during reflow process. I have tried ...

Jan 19, 2023
Conformal Coating in Low Humidity Environments
Whereas conformal coating is excellent for high humidity protection - is there any performance impact when subjected to ...

Jan 18, 2023
Soldering Multilayer Ceramic Chip Capacitors
We are conducting rework that includes soldering a wire to one end of a heat sensitive multilayer ceramic ...

Jan 17, 2023
Zip-lock Bags vs. Heat Sealed Bags
Are zip-lock bags vs. heat sealed bags an acceptable option for storage of moisture sensitive components? ...

Jan 16, 2023
Gold Edge Contact Flux Contamination Failures
We received somere turned circuit board assemblies that failed after some time in the field. These assemblies were ...

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