Electronics Forum | Thu Oct 18 00:39:22 EDT 2007 | deyuan
This posting is for a group of students at the University of California - Los Angeles Anderson School of Business. We are conducting a survey for our Master�s thesis project. Our project involves working with a small electrical CAD software company
Electronics Forum | Fri Jan 18 09:44:15 EST 2008 | operator
I have searched through the topics here and none seem to address this specifically. I was wondering if anyone had any links/info directly showing how proper ventilation for fume extraction on a manufacturing floor should be handled. From my research
Electronics Forum | Wed Aug 27 14:38:20 EDT 2008 | rgduval
Does your paste provider recommend a TAL? For the leaded and lead-free pastes that we use, the manufacturer recommends 60 seconds above liquidous. I note that your profile shows the TAL as 30 seconds, which may not be sufficient. That said, tho
Electronics Forum | Wed Feb 04 03:20:05 EST 2009 | smartasp
Hi All Reflow Gurus I have learnt that my process engineers do not consider the heat resistance, of the components when creating a reflow profile but rather try to stick to the paste recommendation. This has lead to a field recall as one component h
Electronics Forum | Fri Apr 10 07:52:16 EDT 2009 | davef
On cure checking, we have this undated note from Jack Crawford at IPC * IPC-SM-840C "Qualification and Performance of Permanent Solder Mask" has several Test Methods for different types of solder resist material, but probably the only applicable one
Electronics Forum | Thu Dec 10 11:28:30 EST 2009 | stepheniii
I understand what he means. But has he confirmed that an unusual situation is what is really occurring, or is what happens at every other company happening there? It is very common to have part droppage. Look at all the threads on the subject here.
Electronics Forum | Wed May 12 13:34:02 EDT 2010 | hegemon
Thanks Pete B - great info. I am currently preparing a DOE to address concerns about reflow of componentry on the bottomside of the PCB while in the vapor. Specifically cosmetics and part dropping. Bottom side has no flux, but will be fully reflow
Electronics Forum | Fri Jun 18 17:36:10 EDT 2010 | sid
Good afternoon all, I have been trying to find a solution to a defect I just noticed. After stencil printing and smt part placement on the secondary side of my boards, I run them through a wave soldering system. All my components got soldered perfe
Electronics Forum | Fri Aug 06 12:36:37 EDT 2010 | ooskii
dman97, There is a calibration procedure. It is fairly straight forward and will take about 30 minutes. When you reset you machine both of the squeegee mounting blocks/fixtures should be level with each other. Just slide you finger over the fron
Electronics Forum | Tue Aug 10 08:17:12 EDT 2010 | smellew
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