Electronics Forum | Mon Oct 11 15:23:03 EDT 2004 | Phil
Hi Kevin Please also see my website http://www.solderrecovery.com
Electronics Forum | Tue Mar 11 09:49:59 EST 2003 | MGARCIA
DO YOU KNOW? WHAT KIND OF SOLDER PASTE IS BETTER IN ORDER TO AVOID THE TOMBSTONE DEFECT IN SMT PROCESS.
Electronics Forum | Tue Mar 11 10:19:00 EST 2003 | yngwie
We ran doublesided SMT thru Glue and Wave process before and but faced a lot of skip solder. Then the customer told us that they have similar problem when they ran the board so what they did was they print the paste-dispense the glue- place the comp
Electronics Forum | Wed Apr 02 09:25:32 EST 2003 | davef
RDR The most common cause of dewetting is from a fabricator using any form of abrasive (e.g. pumice, abrasive brushes etc.) on copper. With this process, abrasive particles get implanted into the copper (often actually swaging copper over some of th
Electronics Forum | Fri Apr 04 09:26:21 EST 2003 | ksfacinelli
What paste are you utilizing?
Electronics Forum | Sun Apr 13 19:55:21 EDT 2003 | yukim
Just some more info: PCB is HAL finished we are using Sn63 solder paste.
Electronics Forum | Mon Apr 14 09:39:49 EDT 2003 | davef
Consider: * Sn has a higher melting point than Pb. So the liquidous temperature of this new, non-Sn63 is going to be higher than 183*C. What was the thermal recipe measured on this solder connection? * Next thing we'd do is take problem devices and
Electronics Forum | Mon Apr 14 08:05:47 EDT 2003 | pjc
What 2D inspection? Solder Paste deposition perhaps? Transmission X-ray?
Electronics Forum | Thu Apr 17 10:38:02 EDT 2003 | davef
While Russ is correct that a little voiding is OK, your level of voiding [customer complains that the solder surface looks bumpy] doesn't give us the ol' warm and fuzzy about their process control. For background: * Search the fine SMTnet Archives.
Electronics Forum | Thu Apr 17 13:00:28 EDT 2003 | Takfire
Russ, The caps are 0603 case size. I am not sure about the manufacturing details, as I work for the capacitor supplier. The manufacturing details are unclear at the moment, as the customer (South of the border) has not released such detailed inform
