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Oct 22, 2021
Components Falling Off During Reflow
Can excessive solder paste volume contribute to components falling off the bottom of the circuit board during topside ...
L.W.

Oct 21, 2021
Exposed Copper Risk
We received many PCB's where a modification have been completed. The modification involved soldering a chip cap to ...
A.H.

Oct 20, 2021
ESD Grounding - 1 Meg Ohm Resistor
Why do we need to use a 1 meg-ohm resistor for ESD grounding? ...
R.R.

Oct 19, 2021
Solder Paste Life on the Stencil
Our solder paste has a specified life for exposure on the stencil at 10 hours. We run our ...
S.S.

Oct 18, 2021
ESD and Humidification
In the handling of circuit board assemblies placing them into systems, is ambient air humidification necessary if other ...
B.K.

Oct 15, 2021
Water Wash vs. No-clean
How do we decide whether to choose a water wash process, or a no-clean process, for a contract ...
J.M.

Oct 14, 2021
Dam & Fill vs. Conformal Coating
Are there any special reasons or advantages to use Dam & Fill compared to conformal coating? Is Dam ...
C.M.

Oct 13, 2021
Solder Joint Blow Holes
After switching our PCB finish from Pb free HASL to ENIG, blow holes started occurring in the solder ...
C.S.

Oct 12, 2021
Conformal Coating Bubbles
We use a conformal coating house whose workmanship is beginning to display a ton of bubbles around the ...
C.H.

Oct 11, 2021
What Causes Component Rotation During Reflow?
We are using a large 2 pin SMT inductor. During reflow soldering it rotates almost 30 degree. We ...
S.S.

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