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 | Fri Apr 18 09:45:42 EDT 2003 | k_h
Transistors? Are you referring to SOT-23 packages? Are the solder paste and part properly registered before reflow?
Electronics Forum | Thu Apr 24 21:41:18 EDT 2003 | davef
Searching the "forum" on ... solder ... produces one thread. Fershur.] Get rid of the input script and replace it with a ;p
Electronics Forum | Sat May 03 00:58:51 EDT 2003 | ken
Did you check if the height of solder mask between two pads is higher than pads?
Electronics Forum | Sun May 04 22:10:20 EDT 2003 | Thomas
Did u ever try a anti-tombstone solder paste to try to eliminate this problem ??
Electronics Forum | Wed May 07 09:24:33 EDT 2003 | davef
Kris The majority of our tombstoning in very small passive SMT is caused by imperfections in end-cap solderability protection plating.
Electronics Forum | Fri May 30 11:24:45 EDT 2003 | dsuraski
We also use microns to describe solder paste powder particle sizes.
