Electronics Forum | Wed Jan 19 22:24:19 EST 2000 | Dave F
Dave: Try: http://rac.iitri.org/ they might be able to help. Good luck. Dave F
Electronics Forum | Wed Mar 01 13:06:36 EST 2000 | Graham Naisbitt
$100K for a full in-line. We can do conventional spray at 30 to 50% less but you must mask components you don't want to coat. If they are on 1 end only of the board, then dip coat which is the least expensive option starting at around $12K for up to
Electronics Forum | Fri May 19 14:33:30 EDT 2000 | Lawrence A. Groves
I did this at one point and found that the handleing is critical. What usually happened is that two of the PCBs would touch and the edge of one would scrape the parts off the other. I tried a couple of different epoxys and ended up with a CIBA prod
Electronics Forum | Wed Mar 01 13:06:36 EST 2000 | Graham Naisbitt
$100K for a full in-line. We can do conventional spray at 30 to 50% less but you must mask components you don't want to coat. If they are on 1 end only of the board, then dip coat which is the least expensive option starting at around $12K for up to
Electronics Forum | Mon Jan 31 21:11:09 EST 2000 | Dave F
Dave: Find: "Comprehensive Surface Mount Reliability Model Covering Several Generations of Packaging and Assembly Technology", by J. Clech et.al. IEEE Trans on Comp. Hyb. and Manuf. Tech. Vol. 16, No. 8 Dec. 1993, p.949. It listed cycle to failure
Electronics Forum | Thu May 18 16:44:44 EDT 2000 | Travis Slaughter
You should be able to do it with the proper epoxy. I found one several years ago that was so strong during the sheer test the board delaminated and gave before the glue. I did not go with it for rework reasons, that�s something you might want to th
Electronics Forum | Tue Jan 18 12:36:11 EST 2000 | Dave F
Dave: I haven't located something to support your contention, yet, and I'm not going to comment on the factors that drive reliability beyond component selection, because I know that you've got some sweaty-palmed sales type wringing his hands waiting
Electronics Forum | Fri Jan 14 16:48:40 EST 2000 | Steve Thomas
O.K., folks, I know this is a loaded question, but I've been asked to find the answer, sooooo: What is an acceptable defect rate in ppm for a surface mount process, assuming that each component has the potential for one defect. This would include de
Electronics Forum | Tue Jan 18 20:31:10 EST 2000 | WDavidson
It makes a difference what the normalizer is. We calculate solder ppm and placement ppm separately for each assembly. Solder ppm = #solder defects*1E6/(Qty boards*#solder joints per board). For us this number is easily less than 50 and sometimes
Electronics Forum | Sat Jan 15 13:13:33 EST 2000 | Mark Wiegold
Steve, Basically in answer to your question, there is no real set number for defects. Defect rates will vary between products and companies. If my company was running the same product as yourself then there is no reason to suggest that the defect ra
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