Electronics Forum | Thu Apr 18 23:56:27 EDT 2002 | Abelardo Rodriguez
I'm trying to get a better understanding of the cooking process of pcb's. The use of nitrogen in reflow and wave ovens. Seems to have a wide margin of acceptance as a standard gas to prevent oxidation of metals in the board. Has any one heard or us
Electronics Forum | Mon Mar 26 09:41:03 EDT 2018 | fuji_user_2014
Hi Gurus, Looking for alternatives to line makeup after reflow oven. Currently, I have a continuous on flat belt conveying out of my reflow oven straight to an EOL bench. The operator manually picks up the board off the belt (there is a roller at t
Electronics Forum | Mon Sep 23 18:11:10 EDT 2002 | steveb
On an assembly reflowed in air saw the same thing: 0201's with a grainular solder joint, but 0402's and above with perfectly formed joints. Reflow profile all within acceptable tolerances. Reflowing in nitrogen solves this problem, but increases t
Electronics Forum | Wed Feb 16 14:47:04 EST 2005 | Valerie
Mike, To answer your question, Yes we have thru-hole parts on the boards that we converted to double-sided reflow, we use pallets to select solder the leads. I suppose Masking would work, but that's using a lot of mask. Can I ask, whats preventing
Electronics Forum | Thu Aug 08 13:09:38 EDT 2013 | cyber_wolf
Hege, there is no actual calibration of the thermocouple itself. You can however verify that they read correctly. Heller sells an option on their reflow ovens specifically for this purpose. I hoping that someone chimes in here that is NADCAP certifi
Electronics Forum | Tue Nov 28 21:16:17 EST 2006 | davef
J Rose at EMPF says: The introduction of no-clean solder fluxes in electronics manufacturing has given rise to greater levels of solder balling simply because the opportunity to remove them in the wash process does not exist. They are typically cause
Electronics Forum | Wed Sep 15 11:08:45 EDT 1999 | Dave F
| I am looking for help on doing smt equipment qualifications. I need to find some examples to follow. The equipment to be qualified is a Stencil Machine, Pick and place machine, and Reflow oven. We manufacture medical devices so it has to be somewha
Electronics Forum | Tue Mar 04 16:50:56 EST 2003 | msivigny
Hello Rohan, this is starting to date nearly 6 years ago but I will remember everything I can, we used a custom interface to input data and everything was stored in a very large database on a specific server only for quality data, I think we used Ora
Electronics Forum | Mon Nov 09 09:44:22 EST 2015 | davef
Purpose. This describes setting-up a wave soldering system set-up for a new assembly design or checking a wave solder machine operation with a test board. Applicability. To be used for new design printed circuit assembles and during machine accept
Electronics Forum | Fri Jun 19 14:25:24 EDT 1998 | Earl Moon
| | Has anyone had experience with placing BGA on gold plated boards. I thought I read a while ago there was a problem with embrittlment causing cracked joints. If anyone has experience with this your feedback would be great. | | Mike | There has b
