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Electronics Forum | Mon Sep 17 05:48:10 EDT 2012 | stivais
Hi Ben, Yes, this could be the reason but have you ever seen solderability issues for (new) boards with LF-HAL surface finish? I have seen this only if there are surface finish quality issues for bare boards (exposed copper etc.). In this case we di
Electronics Forum | Thu May 21 09:54:07 EDT 1998 | Justin Medernach
| I'm reviewing my board fab spec. It calls for a minimum SnPb thickness of 50 microinches on HASL PWB's. I've looked at other specs that call out anything from 30 to 80 microinches, and others that just say the copper pad must be covered and solde
Industry News | 2018-10-18 08:29:16.0
How to Prevent Short Circuits to Ground in QFN Components?
Industry News | 2018-12-08 03:29:29.0
SMT Dictionary – Surface Mount Technology Acronym and Abbreviation
PCB Libraries, Inc. | https://www.pcblibraries.com/forum/land-patterns-for-leadfree-componet-soldering_topic612_post2167.html
. This happens on every surface mount pad for SOP, QFP, Molded Body, Chip, PLCC and other component families. Here is a top view picture of Chip Resistor on the top 2 pictures, Molded Body tantalum capacitors on the
Imagineering, Inc. | https://www.pcbnet.com/blog/what-is-the-pcb-fabrication-process/
. Once removed, a thin coating of copper is deposited on all exposed parts of a panel, creating a metallic base for the electroplating process
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