Electronics Forum | Tue Oct 11 11:34:09 EDT 2011 | davef
Here is copy of UL796: http://www.innovative-circuits.com/docs/UL%20796.pdf We'd consider this copy unofficial, but it probably tells you what you want to know.
Electronics Forum | Tue Oct 11 09:21:33 EDT 2011 | davef
Can you use trichloroethylene to clean boards? Yes Should you use trichloroethylene to clean boards? NO!!! Don't use trike. It is an environmental and a personnel health hazard. What are you looking to clean from your boards?
Electronics Forum | Wed Oct 12 00:42:10 EDT 2011 | babithak
My requirement is to clean flux from PCB after soldering. I found information that TCE is harmful to enviroment and human health. But my doubt is is it harmful to electronic components in any way. Does it cause failure of electronic components ? Th
Electronics Forum | Wed Oct 12 03:20:42 EDT 2011 | pinktoh
Any recommendations for a good PIN FRIENDLY PB-Free ROLO solder paste? My process is OSP double-sided reflow with PTH wave soldering.
Electronics Forum | Wed Oct 12 07:18:51 EDT 2011 | babithak
My requirement is to clean flux from PCB after wave soldering. I found information that TCE is harmful to enviroment and human health. But my doubt is that is it harmful to electronic components in any way. Does it cause failure of electronic compon
Electronics Forum | Wed Oct 12 12:05:17 EDT 2011 | dphilbrick
It melts many plastics but not harmful to electronic components. to use it properly you need a vapor degreaser.
Electronics Forum | Wed Oct 12 10:20:27 EDT 2011 | dilogic
If you can share your thoughts and experience with Agilent's SJ10 AOI, I would be very thankful. - Deni
Electronics Forum | Thu Oct 13 14:24:10 EDT 2011 | dphilbrick
You can use a paste that flows at 2 different temps. (first side flows hotter than second side) Glue, as stated in other answer and capton tape covering the BGA will defect enough heat usually as well.
Electronics Forum | Thu Oct 13 16:08:11 EDT 2011 | davef
BGA solder joint reliability is actually improved slightly from a double-sided reflow. [Jean-Paul Clech APEX 2003 Solder Joint Reliability of BGA Assemblies]
Electronics Forum | Thu Oct 13 23:50:50 EDT 2011 | kemasta
Hi Doug Nice idea (2 type paste), I will have a trial. We think of glue and tape too, but it involve cost, but we still keep as an option. thanks.
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