Electronics Forum | Fri Jul 23 09:17:16 EDT 2004 | davef
The more we think about this, the more we think you should join the 20th century and upgrade from your good ol' WS609. We know this will be tough. We used the stuff for 10s of years.
Electronics Forum | Fri Jul 23 20:59:34 EDT 2004 | KEN
Ahmen bro. About 6 years ago I sent 12,000 dollars of this paste to the recycler because I calculated the cost of direct manufacturing defects would outweigh the cost of the paste!
Electronics Forum | Thu Aug 05 09:09:01 EDT 2004 | Kris
is QFP lead co plnarity an issue ? If the QFPS are not sitting in the paste and that can be random if they are very close to the manufacturing tolerence Thx
Electronics Forum | Fri Jun 09 10:14:38 EDT 2006 | pjc
The leads may be that Alloy 42. I would look to be sure your peak temp at reflow is over 220C, like 222C is nice. Also check that time-over-liquidous is meeting solderpaste mfrs. specification.
Electronics Forum | Tue Jun 13 15:10:15 EDT 2006 | mumtaz
So many processes outof control all at the same time. Do you gentlemen get paid to do this? Shawn, do you have any updates?
Electronics Forum | Tue Jun 13 17:46:36 EDT 2006 | jbrower
What???? Look here buddy, What are you a Phd in? I have a few thoughts but I'de like to hear it from you. Just an observation, IF you posted solutions or other useful information you MIGHT get a better response. Jay
Electronics Forum | Wed Jun 14 11:37:44 EDT 2006 | shawnvike
find the problem? Were the parts failing > electrically? Or did someone start prying them > and decide they were too weak? Originally found the problem going through some older assemblies that had failed testing. Poked at leads and found them no
Electronics Forum | Wed Jun 14 12:25:50 EDT 2006 | Rob
Hi Shawn, See if you can get hold of a free tub of Koki S3X58-M406, it claims to be good with Alloy 42. http://www.ko-ki.co.jp/product/new_product.html#new03 Cheers, Rob.
Electronics Forum | Wed Jun 14 13:37:23 EDT 2006 | grantp
Hi, We have just started running this Koki paste and it's working really well. Funny, the joints are a lot more shiny than I expected. Grant
Electronics Forum | Wed Jun 14 15:17:15 EDT 2006 | Chunks
We too have run different pastes and found similar results. I do not repsond to this post to help the Doctor out.
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