Electronics Forum | Fri Sep 02 19:31:40 EDT 2011 | jlawson
I agree that if information is processed correctly up front in process down stream QA becomes less expensive ie AOI etc as AOI at end of lines is telling you you have made mistakes in up stream. I better to eliminate mistakes or have process to avoid
Electronics Forum | Tue Feb 11 12:44:32 EST 2014 | cyber_wolf
Jigo, We have never had a need to do internal testing on solder paste, and your paste supplier should be able to tell you what the correct operating temperature range is. All of the big names in solder paste have tight quality control and I suspect t
Electronics Forum | Mon Feb 10 16:59:57 EST 2014 | hegemon
It is sort of a self answering question if you come in from the solder paste angle. First....start gathering data. Check every day, or every new paste jar, for: Storage conditions (temp), paste expiration date, ambient temp and humidity where yo
Electronics Forum | Thu Aug 12 22:31:10 EDT 1999 | Dave F
| Hello, | | Can any netters suggest what critical parameters should be considered & what are there assoicated impacts for a solder paste printing process ... | | B.Regards, | Felix | Felix: There are some 30 variables that affect SMT solder qua
Electronics Forum | Mon Aug 27 01:48:06 EDT 2001 | apg
Dear Hussman We use automatic machines on mounting PHILIPS and though quality and velocity of their mounting are very good, the girls occupied with quality control can not on 100 % to check quality of the soldering FLIP CHIP and BGA!!! Pavel
Electronics Forum | Fri Aug 24 02:27:53 EDT 2001 | Pavel
Hi. I ask to help me in a choice really of qualitative equipment for quality control of mounting PCB with components.
Electronics Forum | Fri Aug 24 15:04:12 EDT 2001 | Hussman
Hmmm.... We use our placement data from our placement machines. Gives us nuber of placements, yield of good placements and a ton of other stuff that makes our QC peoples eyes get very very big! We use Panasonic equipment ond utilize the Pana-Pro s
Electronics Forum | Mon Aug 27 16:13:35 EDT 2001 | seand
Hello Everyone, For QC purposes, there are a couple of methods to both qaulitatively and quantitatively inspect your manufacturing process. For Paste inspcetion, an inline machine like the SE300 by CyberOptics may be appropriate. You may also inco
Electronics Forum | Wed Mar 27 10:32:29 EST 2002 | barryg
hello evryone. I am rleatively new to smt production. Though we have been successfully running pcb assy's and getting very good solder quality we are trying to get some proccess control parameters set up for our printing process. We have a semiauto s
Electronics Forum | Thu Oct 17 17:18:48 EDT 2002 | Leandro G. Barajas
Hi everybody, This is a simple posting to initiate a discussion on different ways to troubleshoot, improve, and control the Stencil Printing Process SPP in SMT manufacturing. There are many SPC, ANOVA and other analysis techniques that provide insi
