Electronics Forum | Tue Jul 08 20:43:03 EDT 2003 | davef
AlCapone: We have an understanding similar to yours, but slightly different. * At 230*C gold dissolves in to solder at the following rate: 63/37: 197 uinch/sec [5 um/sec]. So for a typical ENIG solderability protection, the gold is gone in about a s
Electronics Forum | Thu Nov 04 07:04:04 EST 1999 | Pat Copeland
Just started having a problem with the solder on a board. Nothing has changed as far as profile, type of paste or setup. But yesterday we had the boards coming out of the reflow with horrible solder results. It appears on some components the solder i
Electronics Forum | Thu Feb 28 18:42:35 EST 2002 | Nightbull
Thank you for your reply. Answer: Auditor came to my company and said that we needed a solder deposition tester. The reason was that we had no real way of assuring that our solder process was repeatable. He referred to several IPC standards that mad
Electronics Forum | Tue Jul 18 18:53:23 EDT 2006 | Mike F
Is it showing up after wave or reflow soldering, or after hand soldering? If the delamination or blister bridges between traces you have the potential for a short circuit between those traces. A delamination might be repairable, but in most cases i
Electronics Forum | Thu Mar 04 10:21:55 EST 1999 | Igmar
Can someone please advise me to the rework procedure for removal and replacing Ceramic Chip Capacitors (e.g. 0805, 1206, etc.)? Is it necessary to pre-heat ceramic capacitors before soldering them onto a PCB with a soldering iron? Is this just a rec
Electronics Forum | Mon Mar 08 16:23:24 EST 1999 | Dave F
| Can someone please advise me to the rework procedure for removal and replacing Ceramic Chip Capacitors (e.g. 0805, 1206, etc.)? | | Is it necessary to pre-heat ceramic capacitors before soldering them onto a PCB with a soldering iron? Is this just
Electronics Forum | Thu Dec 23 16:42:14 EST 2021 | davef
Check technical papers in Nov 4, 2021 Newsletter [ https://smtnet.com/express/index.cfm?fuseaction=archives&issue=20211104] NovaCentrix's PulseForge Soldering In-Line, with proprietary high-intensity thermal technology, reflows a wide Range of t
Electronics Forum | Tue Aug 25 09:29:59 EDT 1998 | Richard Scarcelli
Would like to know the following information on processing micro bga's: 1) Fine mesh solder paste .vs. tacky flux --- which is best 2) Stencil thickness for solder screen 3) Aperature size for standard pitch balls 4) Which direction is the marke
Electronics Forum | Fri Sep 11 10:52:25 EDT 1998 | Javier Carrera
| Would like to know the following information on processing micro bga's: | 1) Fine mesh solder paste .vs. tacky flux --- which is best | 2) Stencil thickness for solder screen | 3) Aperature size for standard pitch balls | 4) Which direction is
Electronics Forum | Tue Feb 02 09:31:20 EST 2010 | markhoch
I just realized that I should've been more specific. (My question was certainly open ended) I'm concerned with Wave Soldering a Metal Body, Two-Leaded Crystal Oscillator such as this: http://www.citizencrystal.com/images/pdf/m-hcm49.pdf Any thoughts
