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Ask the Experts Index |
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Jul 24, 2026 Recommended Solder Paste Aperture Configuration What aperture shape/configuration do you recommend with our solder paste stencils for 008004 and 01005 pad sizes? ... T.G. Jul 23, 2026 Polyurethane Conformal and Acrylic Coating on the Same PCB We were using a polyurethane conformal coating. Now our entire process has been changed to acrylic coating. What ... P.B. Jul 22, 2026 Conformal Coating in Nitrogen Environment We operate a conformal coat machine using nitrogen. We are thinking of changing it back to air for ... M.E. Jul 21, 2026 Double Sided Reflow for Micro BGA Components What is the best way to process a 30 mil FR406 circuit board assembly that has micro BGAs ... M.K. Jul 20, 2026 Baking After Cleaning Hand Placed Parts Is baking required after in-line cleaning an assembly with moisture sensitive parts that were hand placed instead of ... R.M. 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. |
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