Electronics Forum | Fri May 06 18:19:45 EDT 2005 | Dr. Klein
hello all. i would like to know a process for sampling scrap lever from siplace mechine (madamas prog). what is the everage scrap level? how many times should i sample scrap level during assembly? what are the steps operator should do for fixing hig
Electronics Forum | Tue Feb 21 20:14:50 EST 2006 | Joseph
Dear all, Recently our lead-free samples being rejected due to very dull and sometimes grainy and very porous surface on solder joints. This samples was flow thru' the lead-free wave soldering with SN100C alloy composition. Referring IPC-A-610 D, le
Electronics Forum | Tue Apr 03 01:56:37 EDT 2018 | sophyluo1985
Hi All, Anyone want to talk about how do you did the 1st sample inspection in your SMT department? I mean once you want to produce a new product. After the material on board, and before mass production, we always need to do 1 or 2 sample to test if a
Electronics Forum | Tue Apr 13 14:49:15 EDT 2010 | davef
90%) from the sample, and the bake time and temperature specified herein are minimums. To improve test accuracy, or to prevent heat damage, other bake parameters may be AABUS. 2 Applicable Documents IPC-QL-653 Certification of Facilities that Inspect
Electronics Forum | Fri Jun 11 15:43:41 EDT 1999 | wayne sanita
How are you inspecting pcbs post-reflow, are you inspecting all or sampling. The type of assembly involved would be mainly chip components with a mix of actives and a few 25mil and under pitch. If you sample what are your fault rates looking like. T
Electronics Forum | Mon Aug 29 10:18:14 EDT 2005 | Just a Viewer
Hi, Wanna to know if you have extra boad (Solder Sample) and extra parts to waste ??? If so, place the parts in all different angle on your solder sample boards... see what going to happens ???
Electronics Forum | Tue Apr 12 19:22:44 EDT 2016 | szs0080
Hello, I did drop testing of some sample boards which had 15mm SAC105&305 BGA's on them. I polished them real nice and looked it under optical microscope for cracks. Was wondering the etching procedure before looking it under SEM. Thanks
Electronics Forum | Fri May 27 14:00:57 EDT 2022 | SMTA-64387182
I am looking for some sample assembly notes for a 2-sided PCBA IPC Class 2. Notes to put on my assembly drawing. Not the PCB fab drawing. Thanks, Joe
Electronics Forum | Thu Dec 14 20:00:03 EST 2023 | stephendo
I would think that it would be the readings you get from known calibrated samples. i.e. you get samples to test with known values and you test them and see if you get the correct values. Don't rule out your customer not knowing what they are asking
Electronics Forum | Mon Apr 01 10:09:03 EDT 2013 | markhoch
It sounds as if you have your AOI set up off-line, and you're "AOIing" a sampling of the PCBs produced. If that’s the case, then the responsibility of who drives the inspection really depends on how you configure it. If it's based on the number of P
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