Electronics Forum | Mon Mar 03 11:06:13 EST 2003 | msivigny
Hi floydl, I completely understand when it comes to data crunching after long hours of performing measurements, it's the last and most important arduous task in obtaining performance data. If a measurement and evaluation process that traditionally to
Electronics Forum | Fri Jul 09 09:01:18 EDT 1999 | Marc P
| | Hi! | | I'm a process engineer attempting to do a capability study on our existing convection reflow oven - Heller 1500. It was recommended by an independent consultant to do at the very least, load testing, process ready testing, and board unif
Electronics Forum | Sat Jul 10 02:47:27 EDT 1999 | Scott
| | | Hi! | | | I'm a process engineer attempting to do a capability study on our existing convection reflow oven - Heller 1500. It was recommended by an independent consultant to do at the very least, load testing, process ready testing, and board
Electronics Forum | Mon Mar 10 15:52:26 EST 2003 | eagle-eyed-one
Hello Neil, I absolutely agree with the conclusion of limits as you have stated. There are 2 sets of limits in which machines can be measured against for compliant performance. First and most critical being the quality performance specification limit
Electronics Forum | Wed Dec 13 20:46:46 EST 2000 | Dave F
I�ll bite ... Why can�t you calculate LSL/USL values from your control charts? We find that LSL/USL values generally are unknown. If you are seeking a text on statistical analysis consider: "Statistical Process Control for Surface Mount Technology"
Electronics Forum | Mon May 08 01:47:56 EDT 2000 | Jack
Charles, I think the misplacement can be devided into 2 groups: 1. parts misplaced by machine 2. parts move as the X-Y table moves If you use the solder paster right, and the place force is properly setup, the second group will be definitely no exce
Electronics Forum | Tue Jan 30 17:36:59 EST 2001 | slthomas
Looking for recommendations for references on quality an process control.....SPC, process capability (cp, cpk), etc. My feet are a little wet on this stuff, but we'll be implementing soon so I'll need a reference to bail me out on occasion. You kn
Electronics Forum | Wed Feb 07 09:57:50 EST 2001 | cjrjmj
I did a quick some quick searches for Accuspec and saw some links to a PCB manufacturer. Is this the same company, or do you know the #?? I am not really in the equipment evaluation mode. I am looking for a system that will assist in maintaining cap
Electronics Forum | Wed Feb 02 15:12:44 EST 2000 | Chung H. Park
Mr. Kim: The answer to your question depends on the type of mix you are dealing with. Here is the approach you should be taking to answer to your question yourself: 1. Establish the reflow process specifications for products. 2. Profile your p
Electronics Forum | Mon Dec 06 17:17:57 EST 1999 | Brian W.
I have not used a vision inspection system for this. We used a digital x-y coordinate measurement system. With this, we could find the center of the part and then measure where it was in relation to a fixed point, like a fiducial. Some of the syst
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