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872 expert questions.

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Jul 26, 2024
Solder Paste Viscosity
What key factors affect solder paste viscosity? Assuming we only focus on the powder, will more fine powders ...
P.I.

Jul 25, 2024
Proper method to bake PCB's
We need to bake PCBs. Is there a correct method? Can we put the PCBs one over the ...
M.K.

Jul 24, 2024
Coating to stop tin whisker growth?
Is there a conformal coating that will stop tin whisker growth? ...
D.H.

Jul 23, 2024
Selective Soldering Frame Causing Cold Solder Joints
We have continual problems with our wave soldering system, especially cold solder joints. Could the cold solder joints ...
T.H.

Jul 22, 2024
Very Low Temp PCBs
We have a requirement for PCBs to be used at temperatures as low as -200 degree C. Are ...
J.V.

Jul 19, 2024
Confused About IPC-A-610 Class 2 vs. Class 3
My company is confused about IPC-A-610 Class 2 and Class 3. Some believe that Class 3 is for ...
T.G.

Jul 18, 2024
Mixed MSL Baking
If the highest MSL-rated component on a PCB had a 27-hour bake time at 125C (1.4-2.0mm, MSL 3) ...
B.B.

Jul 17, 2024
BGA Component Grounding Problem
We have an ongoing concern regarding reliability BGA components. Over the last year, we had boards returned due ...
M.S.

Jul 16, 2024
Need for Reflow Profiles
How important is it to run a profile on every different assembly? I have been told choosing an ...
E. R.

Jul 15, 2024
Gold Plating and Embrittlement
What is your opinion regarding gold plating removal to improve soldering? I believe in the past gold plating ...
M.B.

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