Electronics Forum | Thu Nov 17 17:32:07 EST 2005 | russ
Good point tommy, I think we are confusing what we are talking about here. It was not asked if the operators should do inspection. It was asked if an operator should pass boards through a machine. The operator is not inspecting anything just as t
Electronics Forum | Tue Aug 14 08:19:45 EDT 2018 | buckcho
Hello, other colleagues gave you valid ideas. I found it helpful if i reduce the size of the cooling openings. I would suggest making the four big square into very small many diamonds. This would maybe decrease your voiding with 2-4 percent. Btw how
Electronics Forum | Sat Apr 11 14:31:16 EDT 1998 | Gary Simbulan
| | I would like to invite everyone to share/discuss | | information/knowledge/experience they have with | | the req's that are assumed to be valid for the | | temperature/time relation in the process of reflow | | soldering Pin In Paste, Intrusive R
Electronics Forum | Wed Aug 07 11:55:31 EDT 2002 | slthomas
Ron, have a look at http://www.fda.gov/cdrh/dsma/cgmphome.html It would be a nightmare, if your plant is not structured to support it. It's a huge pain in the fanny even when you (alledgedly) are. I'm not sure what you're pursuing, but if you're c
Electronics Forum | Tue Dec 14 04:01:08 EST 2004 | paul_fisher
We have a problem with dendritic growth that is affecting a new board going into production. This is of concern because they were subjected to Damp Heat Cyclic Tests as part of the product validation testing during their development. Fails to date
Electronics Forum | Mon Jan 11 04:42:38 EST 2016 | buckcho
You can do the so called "Golden Sample" with defects from the process. The making of the defects on the board is very important to be as much close to the real ones from the production. How I do it - after the printer I remove paste on some pads, so
Electronics Forum | Fri May 20 03:14:03 EDT 2016 | designhaus
Hello, We are about receive an 85.000 USD award grant towards purchasing manufacturing or testing equipment for our company. We are trying to figure out how to best use this grant. Here are short facts about us: We are a design house, so all our ma
Electronics Forum | Tue Jul 09 15:20:19 EDT 2002 | pjc
When you look at the capabilities of Combo machines they tend to sacrifice performance when compared to separate X-ray and AOI machines, meaning they don't do either the X-ray or AOI operations as well as a machine that was designed to do only one. A
Electronics Forum | Mon Dec 23 13:18:04 EST 2013 | stustu
I'm fairly new to SMT, but highly experienced in other materials engineering areas. But have found the definitions/specifications for pastes to be both confusing and inadequate. I have often see graphical representations of the "desired" thermal pro
Electronics Forum | Tue Jan 05 20:29:32 EST 1999 | Steve Gregory
| A question for you all! | | Back in the good old days, we didn't always know how clean was clean. Much has changed. Much hasn't. | | My question concerns cleaning under, through, and around tight spaces. Way back when, we could not clean under 20
