Electronics Forum | Thu Dec 01 17:24:37 EST 2005 | slthomas
Are you sure you're getting enough paste on the pads? It looks like you may not have enough flux to get the solder to wet properly.
Electronics Forum | Fri Dec 09 06:25:53 EST 2005 | ajay
thanks for info Most of the defect soldering joint do not take place. Observe that PCB not cleaned properly & also component wetting not good. testing staff expect that all card what ever they receiev shuld be 100% ok. they straight forward complain
Electronics Forum | Thu Dec 08 19:18:19 EST 2005 | khp_armin
Please give us some ideas on some critical parameters in checking the solder paste shape, size & volume after Solder Paste Printing.
Electronics Forum | Sat Dec 10 07:54:32 EST 2005 | davef
Dan Terstegge's jump site is the BEST. Look here: http://www.smtinfo.net/Db/_Wave%20Soldering.html
Electronics Forum | Wed Dec 14 21:36:04 EST 2005 | davef
Dan Terstegge's jump site is the BEST. Look here: http://www.smtinfo.net/Db/_Wave%20Soldering.html
Electronics Forum | Wed Dec 14 21:19:36 EST 2005 | davef
Heavens to Murgatroyd, we agree with Russ that "black pad" could be the cause of your solderability problem, but oxidized nickel is an additional explanation. While its often easy for assembler to jump this conclusion, it sounds like you've been bla
Electronics Forum | Fri Dec 16 07:43:43 EST 2005 | davef
Rob The typical warming or stabilization time for solder paste is four to six hours. Check with your supplier for specific recommendations.
Electronics Forum | Mon Dec 19 12:18:41 EST 2005 | Amol Kane
funding from who?. we are dealing with the same thing here. the solder paste cost is roughly 1.5 times SnPb, and the cost of bar solder is thru the roof
Electronics Forum | Mon Dec 19 08:56:18 EST 2005 | davef
Q1a. If the thickness of the silver is too much (how is too much??), A1a. We have heard stories of using Ag2 to limit silver [or gold] dissolution, but have never seen formal studies to demonstrate that idea. First, exclude the use of silver plate
Electronics Forum | Mon Dec 19 09:39:44 EST 2005 | 4rides
I find myself in possesion of a solder pot from a production machine that was sent to scrap. The scrap man was uninterested in the 2 ton pot. Does this thing have value ?? Or am I stuck with a hunk of Hasmat ???
