Electronics Forum | Thu Jul 17 12:51:46 EDT 2003 | James
Any suggestions on trying a paste with a stronger flux?
Electronics Forum | Thu Jul 17 14:18:45 EDT 2003 | davef
What is this oxidation? What does it look like?
Electronics Forum | Thu Aug 24 13:36:07 EDT 2000 | Dr. Ning-Cheng Lee
Regarding the boiling point, MSDS may have some infomation reflecting that. Other description such as long stencil life and long tack time may also reflect. Wetting rate typically is not stated in product data sheet. You will need to determine it y
Electronics Forum | Thu Jul 17 10:56:50 EDT 2003 | James
COULD SOMEONE PLEASE TELL ME OF A WAY TO CLEAN THE OXIDIZATION OF OF WHITE TIN PADS, I AM GETTING ALOT OF DEWETTING PROBLEMS. AND I CONCLUDED THAT ALL THE BOARDS WITH WHITE TIN ARE HAVING THE SAME PROBLEMS. THANKS FOR THE INPUT.
Electronics Forum | Thu Jul 17 12:08:56 EDT 2003 | russ
The only way I have been able to do it so far is to apply a very agressive flux and then wave the board and then wick all of the pads. (Totaly S#$KS). I trust you will eliminate this finish in the future? I hate tin for this reason. Russ
Electronics Forum | Thu Jul 17 15:23:23 EDT 2003 | James
It is really hard to tell what it is. It just looks like parts of the pad did not solder and you can see where the solder would even go around the pad leaving voids.
Electronics Forum | Fri Jul 18 11:05:07 EDT 2003 | davef
A highly activated flux will begin to corrode the imm tin coating after 10 minutes. Corroded tin has poor solderability.
Electronics Forum | Fri May 19 08:51:05 EDT 2000 | NAMCo
Gee today the email works both in Java and non-Java versions(amazing since I posted a message yesterday about a problem)! In response to your question about which browser I use - it's MSIE 5.01 build 5.00.2919.6307 Any comments?
Electronics Forum | Wed Jul 23 08:21:55 EDT 2003 | James
Here we go again. I tried changing paste and that did nothing. Literally solder balled up and flew to the next pad. What would be a short term fix to use up all baards with white tin. Is there a fix if the board house did not manufacturer the boards
Electronics Forum | Thu Jul 17 16:07:23 EDT 2003 | davef
So, how do you know it's "oxidation"? If the parts didn't solder, why aren't the parts the problem? Do the parts take-on solder? Please describe: * Appearance of the post-solder components. * Scope and extent of the problem. * Appearance of the po
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