Electronics Forum | Wed Feb 28 03:57:46 EST 2001 | peterbarton
Are you using a water based flux? Are the solder balls mainly around or near non-plated holes or near the edges of the PCB? If so the preheat must be set so the water content of the flux is fully evaporated before the board hits the solder wave. If
Electronics Forum | Tue Mar 20 08:46:26 EST 2001 | Joe S
When someone has a concern about solder being electrolytic, what is their concern?
Electronics Forum | Thu Mar 29 15:50:35 EST 2001 | tomgervascio
We've think that with seen solder shorts under BGAs after wave soldering the boards. In addition, it seems to be related to a certain soldermask configuration over the topside BGA vias.. THere is one vendor,A, that is applying soldermask after HASL,
Electronics Forum | Wed Apr 18 20:55:20 EDT 2001 | davef
Yins are bad, this guy's serious. Generally, solder pastes are comprised of: 90% solder powder, 5% flux, 4% solvents, and 1% activators [by weight]. Where: * Solder powder, when reflowed, is a metal bonding agent that mechanically and electrically
Electronics Forum | Tue Sep 19 08:53:11 EDT 2000 | DL
Does Photonic soldering work well with Ceramic substrate PCB's? and can it be used for die?
Electronics Forum | Wed Aug 23 09:22:34 EDT 2000 | Dave F
Dr Lee: What are your recommendations and sources of excellent publications and books on solder paste printing?
Electronics Forum | Wed Aug 23 09:20:16 EDT 2000 | Dave F
Dr. Lee: What are the benefits, advantages, disadvantages, etc of including silver in "traditional" tin lead solder pastes?
Electronics Forum | Thu Jun 22 11:22:36 EDT 2000 | Roland
You mention no-lead solder technologies in your book. Why should companies consider these alternatives?
Electronics Forum | Sun May 13 22:55:03 EDT 2001 | zam_bri
Solder paste supplied in Catridge vs Jar. What is the pros and cons ? /zam_bri
Electronics Forum | Wed Jan 05 14:45:14 EST 2000 | Hoyt Moore
Does anybody know how to remove solder mask from pads that were masked over.
