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886 expert questions.

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Jul 16, 2026
Question About IPC-6013 Qualification and Performance Specification for Flexible/Rigid-Flexible Printed Boards
Can anyone explain why there is no Space and Military addendum for IPC-6013, as available for IPC-6012 and ...
P.O.

Jul 15, 2026
Coils Rotated After Reflow
We have a coil on a PCB that rotates during reflow. See the photo. What is causing this ...
Y.I.

Jul 14, 2026
Stencil Pattern for Thermal Pads on QFNs
We need more information regarding the stencil pattern for thermal pads on QFNs. We know why it is ...
C.P.

Jul 13, 2026
Component Shifting
We have a problem with chip component shifting that is detected during automatic optical inspection. The shifting is ...
V.E.

Jul 10, 2026
What Is Causing Connectors to Bow?
I have a connector that is bowing during the lead-free soldering process. When the connector is put through ...
B.S.

Jul 9, 2026
Cleaning No-Clean Solder Paste
We are building small lots of circuit board assemblies using no-clean solder paste. We prefer to remove the ...
M. K.

Jul 8, 2026
Solder Paste Alloy Check
We have a production line that runs mainly leaded paste. We accidentally assembled boards using lead-free paste and ...
R.L.

Jul 6, 2026
Challenge Wetting Solder to Brass Pins
In our production we have a product with a connector. The connector pins are made of brass, and ...
D.G.

Jul 2, 2026
Class 3 Cleaning Requirements
We recently received our first contract to assemble Class 3 circuit board assemblies. Are there any changes we ...
L.L.

Jul 1, 2026
Mixing Different SAC305 Solders
We have been using SAC305 bar solder from one supplier. We now want to source it from a ...
M.K.

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Our depaneling machines are high-performance machines for single circuit boards with electronic components. The cutting principles are fast, the best quality.
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