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Electronics Forum | Fri Feb 14 08:32:05 EST 2003 | dphilbrick
Check your SMTnet Email. I sent you some info on a product we use parts of here. Really good stuff!
Electronics Forum | Fri Feb 21 11:46:27 EST 2003 | larryk
Everyone is suspecting the epoxy. I'm just trying to understand why. Ryan stated he was having random chips falling off. If the epoxy or cure was the problem wouldn't he see the majority of the components falling off instead of just random?
Electronics Forum | Mon Feb 24 15:04:15 EST 2003 | larryk
Dave, I went into their website. Unfortunately, they do not have a "search" option. I checked all of 2002 and Jan of 2003 archieves with out any success. You don't happen to know which month this article was featured in?
Electronics Forum | Mon Feb 24 15:41:32 EST 2003 | davef
Larry, CSL used to publish the whole article online. Now, they just have an abstract. Bummer. Look in Circuits Assembly magazine, 12/98 for "Microcanyons"
Electronics Forum | Wed Feb 26 10:57:47 EST 2003 | larryk
Dave, I had to contact Circuits Assembly, but I got the article. I'm going to forward it on to Ryan. I think you're on to his problem with flux becoming entrapped in the epoxy. It plays along with Locktites suggestion of a longer soak on his profile.
Electronics Forum | Tue Feb 25 17:46:35 EST 2003 | davef
And the really sad part about that is: Some organizations actually REQUIRED a institutionally myopic organization like the FDA to go "Hello, design has a BIG impact on quality and you HAVE to pay more attention to that area".
Electronics Forum | Wed Mar 05 11:00:52 EST 2003 | msivigny
Hello Joseph, I'm sure there is an alternative but I need to have more information in order to make a suggestion. Is the part setup for selective soldering, through-hole for wave or surface mount for reflow? Let me know if you require additional assi
Electronics Forum | Thu Mar 27 17:29:11 EST 2003 | paul
can any one tell me if you should run the same heat on the same boards no matter what deffrent parts are on the board Should you do a oven profile for every deffrent board or is it the thickness of the board that matters.
Electronics Forum | Thu Mar 13 14:51:23 EST 2003 | juan_ruiz
A good standard could be 99.7% of Pick up reliability in terms of machine performance, but you should take care of the cost of the parts that you are scraping.
Electronics Forum | Tue Apr 01 18:21:48 EST 2003 | slthomas
I've never printed adhesive but I assume that aspect ratio still plays a part with release. Maybe that .006" is just to thick to get good release. Can you step your stencil down from .006" to .004" or .005" for the 0402's?
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