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Questions and CommentsHave you got something to say? Visit any program page and use the Comment form at the bottom of the page to submit a comment or ask a question. Comments and questions are reviewed prior to posting. |
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May 1, 2023 Issues Mixing Silicone and Acrylic Conformal Coatings Silicones are primarily used for thermal resistance, flexibility, and a T sub g that is higher so that it can be used on assemblies used in higher temps. Also, silicone provides shock and vibration resistance ... Rick Perkins, Chem Logic Apr 25, 2023 V-Score and Depanel in One Step IPC-782 doesn't exist anymore. It was superseded in 2005 by IPC-7351. Furthermore creating bevelled edges for board edge connectors is usually done at the board shop. They can do a proper, controlled bevelling. Any mechanical ... Frank, PIEK Apr 17, 2023 Help With Lead to Hole Ratio On top of above, You also need to consider the metal with which the pin is made. For example, metal A-42 (FeNi) is a poor conductor of heat compared to copper or brass. If the ... Gabriele Sala, GSC Mar 27, 2023 Reflow Oven Zone Separation Challenges There are numerous ways to maximize the differential between zone of a reflow oven. Internal gas flow, static pressure, zone barriers, are just a few. Sometimes moving the peak temperature to a different zone will ... Fred Dimock, Fred Dimock Global Services Mar 22, 2023 How To Clean a Vintage Circuit Board Assembly? Been there and did this: With the circuit board removed from the computer; Very hot water is a fairly large plastic tub with s little green detergent soap, as used for washing dishes. Do not ... Jaye Waas, Renkus-Heinz |
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