Electronics Forum | Thu May 30 11:21:08 EDT 2019 | slthomas
100% visual inspection. If we test, then we retest (assuming this is a completed board). Also, if there is an accelerometer on board, we argue about whether or not we should replace it by default.
Electronics Forum | Thu Jun 02 10:14:27 EDT 2005 | zartacross
hi! i am concern with the position of the workers in terms of visual inspection,since they deal with very small and intricate parts in pcbs. I would just like to ask which is better to have, the standing or sitting positions for them? specially that
Electronics Forum | Mon Apr 25 11:24:31 EDT 2005 | Daan Terstegge
I have a question about inspection, touch-up, and how far you need to go to get a product that meets the required IPC-spec. According to some reports (i.e. "New Study Reveals Component Defect Levels" by Stig Oresjo of Agilent) the average defect leve
Electronics Forum | Wed Apr 27 11:43:32 EDT 2005 | patrickbruneel
Hi Daan, What we did in the time was pareto analyses on all board designs to determine the critical areas (mainly design errors) and only inspect those specific problem areas. Every batch had a copy of the PC board with problem areas marked and only
Electronics Forum | Thu Jun 02 12:44:13 EDT 2005 | russ
Your inspection people will tell you what they need. We have some that prefer to stand while others sit. It has to do with chair / table / operator heights. e.g. tall table with a short operator they will want/need to stand and vice versa. Usuall
Electronics Forum | Fri Sep 29 13:51:46 EDT 2000 | C. Ortner
We work in a "low" volume high reliability house building mixed tech double sided multi layer CCA's for long lived space applications. Our present problem is inspection questioning every dimple/anomaly on every leadless part(we put passives only thr
Electronics Forum | Thu Nov 19 14:38:49 EST 2009 | doremi
Oh, my dear, printer is just a part of the full picture. Without good and stable pick and place what if the printer is excellent???It is all important - printer, solder paste,stencil,P&P,oven,AOI and of course good process engineers or whatsoever are
Electronics Forum | Wed Aug 04 17:16:13 EDT 2004 | Richard
Can anyone comment on inspection criteria for PIH applications. I'm of the opinion that the inspection criteria used for wave soldered joints should be used for PIH. Some colleagues believe that a bottom side fillet is not necessary since the solde
Electronics Forum | Wed Aug 04 18:43:42 EDT 2004 | davef
We agree with you. Since when do failures ask themselves about the process used to attach them to the board, before failing. Smack your colleagues for us!!!
Electronics Forum | Fri Jan 06 17:20:47 EST 2006 | davef
Mike You get what you ask for. We ask for 0.001 inch minimum. If your supplier's published process range allows thickness below 0.001 inch minimum, you need to define your own acceptance criterion. We don't use average measurements in lot inspect
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