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Ask the Experts Index |
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Nov 20, 2024 Tin Whiskers and Vapor Phase Reflow Can we solder components with tin-plated leads using Sn63Pb37 solder paste in vapor phase reflow (215C) without a ... M.B Nov 19, 2024 D-PAK With Exposed Copper The D-PAK shown was trimmed to avoid overhanging the edge of the PCB. This has exposed copper. Is ... A.J Nov 18, 2024 Component Shifting We have a problem with chip component shifting that is detected during automatic optical inspection. The shifting is ... V.E. Nov 15, 2024 Pick and Place Machine Calibration In general how often should we calibrate pick and place machines, or run a placement machine process capability ... B.O. Nov 14, 2024 Reliability of Automated Soldering vs. Hand Soldering On occasion, we have had to place a skip in our SMT placement machine due to unavailability of ... P.K. Nov 13, 2024 Profiling for Double Sided BGA We are about to produce double sided BGA boards - BGA components on both sides. What advice would ... B.O. Nov 12, 2024 HASL Surface Finish and Coplanarity We are an EMS contractor. We have a customer that has requested a PCB with HASL surface finish. ... T.Y. Nov 11, 2024 PCBA Transport Between Facilities We need to transport PCB assemblies between separate facilities for testing and added processing. The facilities are approx ... R.C. Nov 8, 2024 ENIG Solderability Issues We are facing solderability issues on a particular lot of electroless nickel - immersion gold plated circuit boards. ... R.D. Nov 7, 2024 Question About ESD Ionizer Guns When using pressurized air to clean circuit boards, is it necessary to use an air ionizer gun to ... B.W. |
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