Electronics Forum: because (Page 142 of 444)

About the PCB gold finger contamination.

Electronics Forum | Mon Sep 23 12:42:15 EDT 2002 | dragonslayr

yea - yippie- Scott's the man!!!! good answer - I support the notion that in the long run, stopping the line, getting the root cause determination, is not only effective but efficient. It is hard to do because we all are so used to fire fighting on

baking boards, revisited

Electronics Forum | Tue Oct 01 16:33:33 EDT 2002 | slthomas

I know, I know. It's not a "solution", per se, because it's a bandaid for bad fabrication, packaging, and storage practices. Still, it's a reality with our overseas CM that has a plant in a very humid environment. Is 16 hours @ 105C the safe way to

baking boards, revisited

Electronics Forum | Tue Oct 01 20:56:48 EDT 2002 | davef

Hey Steve, You shouldn't bake your boards, because it's a bandaid for bad fabrication, packaging, storage practices, and what not. You really should go back to the source of the problems and fix that so that you don't add non-value-added costs to

Rep Responses in Forum, Possible Guidelines

Electronics Forum | Sat Oct 12 06:46:17 EDT 2002 | davef

You say "I have seen you make false accusations of name changing and false postings against some reps quite irresponsibly. In conversations before with others offline your accusations have forced a number of good reps to skip providing input simply b

Reflow Oven Chain Lubrication

Electronics Forum | Mon Oct 14 07:51:15 EDT 2002 | cyber_wolf

Mike, we use a product called Dow Corning 321 dryfilm lubricant. BTU reccomends it. You can find it in Mcmaster Carr for about 21.00 a can. Mcmaster PN is 1255K14. I reccomend pulling the chain off when you are lubricating it to avoid over-spray. Th

Connector solderability

Electronics Forum | Wed Nov 06 08:59:51 EST 2002 | rmorford

This defect is there after reflow. My first thought was that the boards had some sort of contamination, too. This is a new PCB manufacturer for this board (they have been making other boards for us). But... why only on the connectors -- why only o

Pardon me all for intruding in this valuable technical....

Electronics Forum | Thu May 08 21:04:43 EDT 2003 | davef

It may seem like a year, but this has been going on for closer to six months. Oh, it's because the administrators at SMTnet think is soooo valuable to us that sales-types have an opportunity to dredge-up and open ancient threads for their self-promo

Contract manufactuer in China

Electronics Forum | Fri May 09 09:46:11 EDT 2003 | emeto

Hi sergiovito , what do you mean by China or region.Indonezia is not a region. Asia is a big continent. May be East Europe(labor there is preferable too).Or you chose China because others did? You should make a research and to find what is an advant

Smartmedia connector in reflow soldering

Electronics Forum | Fri Nov 22 13:41:55 EST 2002 | cristiano

We are experiencing problems with a smartmedia connector during the reflow solder process. The connectors stay a little bended after the oven. In this case the middle leads are not solded, because they stay with no contact on the board. The conector

IONIC CLEANLINESS SPEC FOR BARE PWBs

Electronics Forum | Tue May 18 09:13:08 EDT 2004 | E Wolf

I'd like to follow the thread discussed on assembly. Hope Everyone is ok with that. I do run into the problem (have it now) that Ionic cleanliness is requested by print on a no-clean assembly. My intention is to use the no-clean to skip the aqueou


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