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Ask the Experts Index |
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Oct 6, 2025 Hot Air Soldering for 0201s and 01005s We are struggling to solder and rework small parts - 0201s and 01005s. I have been using a ... T.G. Oct 3, 2025 Reflow Causing Warp We have a 20 layer PWB that is not balanced, 8 of 10 - 1oz cu layers in ... J.W. Oct 2, 2025 Conformal Coating Recommendation We are developing an outdoor LED module. This module will needconformal coating to prevent humidity issues and protect ... Y.F. Oct 1, 2025 Circuit Board Bow and Twist Board flexing has recently started to occur on one of our circuit board assemblies. This assembly has a ... A.M. Sep 30, 2025 Burned Chip Repair I have a circuit board with a burned chip. The manufacturer wants to charge an arm and a ... D.D. Sep 29, 2025 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. Sep 26, 2025 Copper Dissolution Rate Does anyone have data on the rate of copper dissolution in solder? Have any studies been done on ... B.W. Sep 24, 2025 What is the IPC Definition of Uncommonly Harsh? IPC-A-610 and other documents define class 3 to include products where "the end use environment may be uncommonly ... S.M. Sep 23, 2025 Suggested Limit for PCBA Heat Cycles What is the suggested limit for the total number heating cycles that can be done on one PCB ... P.V. Sep 22, 2025 PCBA Inspection Process Causing Damage We inspect PCBAs on a relatively hard ESD mat surface. QA claims that during inspection, moving of the ... T.S. |
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