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Ask the Experts Index

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884 expert questions.

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Mar 25, 2026
3D AOI Solder Joint Qualification Parameters
We have a new inline 3D AOI system. One of the options on our system allows checking if ...
J.S.

Mar 24, 2026
Solder Contamination Sources
What are the most common sources of lead-free solder bath contamination? ...
S.S.

Mar 20, 2026
Removal of Non-functional Pads from Inner Layers
Should we remove non-functional pads from inner layers. In some cases, it may be necessary to free up ...
S.S.

Mar 19, 2026
Components Jumping Around During Reflow
We reflowed a set of boards using a lead-free solder process and had issues with components jumping around ...
M.D.

Mar 18, 2026
Estimating Failure Rate During Rework
Is there a way to estimate the potential failure rate introduced by hand rework of one SMT part. ...
A.F.

Mar 17, 2026
Long Term Component Storage
We need to store a variety of electronic SMD components for at least 10 years. What do you ...
R.A.

Mar 13, 2026
How To Measure Solder Paste Rolling Diameter
A customer has asked us to measure the rolling diameter of solder paste while printing with our automated ...
S.K.

Mar 12, 2026
Class 3 Pin Contact Question
I am working on a class 3 product. We have an assembly from one operation that has a ...
E.E.

Mar 11, 2026
Solder Paste Print Test Boards
We're looking for a better way to manage solder-paste print test boards. Can we use a general test ...
W.H.

Mar 10, 2026
Removing Cleaning Residues Under BTC Packages
How do you determine whether cleaning residues under BTC (Bottom Terminated Component) packages have been sufficiently removed in ...
C.G.

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