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Ask the Experts Index |
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Apr 16, 2026 Epoxy Wicking up Wire Insulation We have 13 gauge insulated wires soldered directly into plated holes in a circuit board. The board is ... T.J. Apr 15, 2026 Out-gassing and Cleaning I have created a series of PCBs with no solder mask. I will be soldering 2 spring pins, ... S.P. Apr 14, 2026 Contamination From Anti-static Foam I have a vintage computer board that is contaminated with what appears to be decomposed anti-static foam. The ... J.G. Apr 13, 2026 Organic Flux Residue Concerns What short-term and long-term concerns should we have with product reliability if we skip cleaning after rework? Our ... D. B. Apr 10, 2026 Lifted Lead on SOT Component We are having a high rejection rate with a SOT883 component where one of the small pads lifts ... R.D. Apr 9, 2026 Ultrasonic Cleaning and Surfactants I've heard that deionized water is a poor conductor of ultrasonic cavitations. Can we add a small amount ... R.P. Apr 8, 2026 Frequency of Temperature and Relative Humidity Tracking We have constant monitoring devices for temperature / relative humidity and are recording in our work/assembly areas. Is ... B.S. Apr 6, 2026 Pin-in-Paste Hole Stencil Printing We want to use a 8mil thick stencil to deposit paste into thru holes in a 93mil thickness ... E.P. Apr 3, 2026 Pre-bake in a Vacuum Can the time for pre-baking of components and bare PCBs to eliminate moisture be reduced by using a ... E.B. Apr 2, 2026 Considering Plasma Cleaning We build microelectronic circuits with various small pitch flip chip die's and an assortment of passive components. To ... T.G. |
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