Electronics Forum: 1

2 oz Copper thickness??

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

Screen Printing Adhesive on Mixed Technology Boards

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

Need advise on regarding Vias

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&

Copper Finishes versus Layer Thickness

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

Philips CSM

Electronics Forum | Sun May 18 19:04:54 EDT 2008 | jmelson

OK, here's a sample component file : 1 0.1uF 0.00 1 24 1.00K 0.00 1 22 10.0K 0.00 1 3 1000pF 0.00 1 3 .001uF 0.00 1 25 1.0uF 0.00 1 2 100pF 0.00 1 30 10M 0.00

Batch cleaner

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

Reflow help needed, Hotflow 5

Electronics Forum | Fri Sep 09 21:09:20 EDT 2011 | hegemon

Wow, a lot of questions here...and you are definitely doing some "tough sledding". To the point. If you have 3 - 22" zones you'll have to calc your belt speed and temperatures to match the solder paste requirements with regard to flux activation an

solder dispencing vs printing

Electronics Forum | Thu Jun 21 22:04:18 EDT 2001 | davef

This is my attempt at beating the "Fuzzburg 7" translator used on the SMTnet Forum that mashes everything it sees. Below the next paragraph are three paragraphs,each with a common numering sequence, where each paragraph represents the columns of a t


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