Electronics Forum | Tue Jul 15 16:12:23 EDT 2008 | boardhouse
Hi Armynski, I sell for an offshore board house, yes, it is common for offshore board shops to fill vias. The bubble is caused by air entrampment within the hole it self, when heat is applied during Hot air and the via is covered on both sides the e
Electronics Forum | Mon Dec 13 00:48:33 EST 1999 | armin
Hi All I have a 0.7 mm diameter hole for vias, what�s the minimum annular ring for this hole diameter? What�s the term unsupported and supported holes refer to in IPC-2221 9.1.2 Annular Ring Requirements? I have a proto-type PCB (designed by our R&
SMTnet Express, December 7, 2017, Subscribers: 31,092, Companies: 10,808, Users: 24,136 Utility of Dual Applicators for Non-Atomized Conformal Coating to Improve High-Volume Manufacturing Optimization Camille Sybert, Michael Szuch; Nordson ASYMTEK
SMTnet Express, October 7, 2021, Subscribers: 26,641, Companies: 11,452, Users: 26,882 Cleaning Before Conformal Coating Cleaning PCBs before conformal coating removes potentially harmful and unknown contaminants from the board
PCB Libraries, Inc. | https://www.pcblibraries.com/forum/via-naming-convention_topic2038_post8354.html
Posted: 13 Dec 2016 at 2:05pm Isn't it time to drop the zz from the following via naming conventinon: via-xx-yy-zz where xx is the pad diameter, yy is the hole diameter and zz is the anti-pad diameter
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