Electronics Forum | Mon Aug 06 19:54:59 EDT 2007 | wayne_
Anyone of you tested your boards in high power reliability test? I am just wondering whether there is any test procedure / standard for a board undergo high power (current / voltage) testing, and also which solder alloy you have tested with good comm
Electronics Forum | Tue Aug 07 10:58:14 EDT 2007 | lozlloyd
General soldering question not related to SMT. Is it OK to solder a wire to a brass terminal? It seems OK but I'm unsure about the long term reliability. Application is a high reliability electronic utility meter. Thanks Steve
Electronics Forum | Wed Aug 08 17:26:40 EDT 2007 | htran
Hello All, I have been searching for the board assemblies bake out requirements acceptance criteria but unsuccessful. Does anyone knows if there are general guidelines for the percentage of the moisture absorption in the PWBs and PWAs? Thanks, Tran
Electronics Forum | Fri Aug 10 07:33:32 EDT 2007 | davef
Tran Since we all agree that J-001 has no baking requirement, why are you baking the boards? What is the purpose of this bake process?
Electronics Forum | Tue Aug 14 20:28:38 EDT 2007 | davef
Just talking off the top of my head, I'd guess that greater weights can be tolerated on the bottom side of two sided reflow when using lead free solder than leaded solder.
Electronics Forum | Thu Aug 09 07:59:13 EDT 2007 | amtpres
I know this isn'n exatly the right forum for this but does anyone have a suggestion where I could get 30-50 used or referbished PCB Assembly, Test, and QC benches similar to the Pro-Line products? I would appriciate any help you may offer.
Electronics Forum | Thu Aug 16 14:20:20 EDT 2007 | hussman
You may call a few used machine people. They may have them or know of a company that is going under and looking to get rid of them. Also try E-Bay.
Electronics Forum | Wed Aug 22 08:30:02 EDT 2007 | davef
Could there be a vibration on or jamming of the conveyor of your oven that is causing these parts to tip-over?
Electronics Forum | Wed Aug 22 09:59:06 EDT 2007 | slthomas
Are there long lags between print and place, and place and reflow? Could your paste be losing some of it's tack?
Electronics Forum | Wed Aug 22 22:07:53 EDT 2007 | mdm4ua
Easy fix is put a drop of washable mask on the side of part before reflow. The mask dries before the solder reflows and holds the part in place. After reflow it washes away.
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