Electronics Forum | Mon Nov 26 15:30:35 EST 2001 | jhingtgen
To all, For the benefit of everyone there will be a session conducted at APEX on this topic. I have included the information that I pasted from the APEX website (http://www.goapex.org). ADHESIVE PRINTING Chris Marinelli, Loctite Tuesday, Janua
Electronics Forum | Tue Apr 23 15:18:02 EDT 2013 | davef
2 oz copper should be 2 oz per ft^2 thick. There is no relationship between thickness and copper weight due to the effect of processing. Since this is a painful way of thinking about things, ppl have reached a compromise and talk about 'nominal thick
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&
Electronics Forum | Thu Jan 04 08:33:08 EST 2007 | davef
You cannot determine foil thickness from its weight per area, because of the significant variation in the density of electrodeposited [ED] copper. But people don't care. They do it regardless. (oz/ft2)||(mils)||(mm) 1/2||0.7||17.8 1||1.4||35.6 2||2
Electronics Forum | Tue Feb 24 13:22:10 EST 2009 | pcbrookie
Hi All, Pretty new here, and to the industry and doing my best to learn what I can. Sorry if this topic has been discussed extensively, but I couldn't seem to find it via a forum search. Our company recently purchased a 7-zone reflow oven to repla
Electronics Forum | Tue Aug 31 18:34:32 EDT 2010 | aqueous
If the batch cleaner is truly closed loop, then 100% of all of the process fluid (water) is captured, filtered (particulate, carbon, resin) and reused. This answer is based on a traditional closed-loop batch cleaning system with an integrated water
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