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 | Mon Jun 16 17:13:24 EDT 2003 | fmonette
John, Maybe you know this already but I just wanted to highlight a few facts about dry cabinets. My experience is that many engineers are not well aware of the industry guidelines and sometimes will buy a dry cabinet without understanding the key f
Electronics Forum | Fri Aug 06 04:54:19 EDT 1999 | Scott Bradley
| I am trying to program/run a test board on a CS-400C machine for the very first time and am having problems making it run right. | | I am programming and downloading this directly out of CircuitCAM software. | | After setting the origin on the CS
Electronics Forum | Wed Aug 21 17:44:32 EDT 2002 | davef
Splitting hairs, I expect SIR of all solderability protection, including OSP, to decrease after reflow. What�s more, I expect the SIR of all solderability protection to pretty much decrease over time. The �comb pattern� test specimens meet requirem
Electronics Forum | Tue Oct 12 11:06:11 EDT 2004 | stefwitt
At least the few people left in this industry should make a stink, why all these jobs went to China and take efforts to get them back. If I take a typical line, which can do 20,000 components an hour, costs $ 200,000, a board with 50 different compon
Electronics Forum | Thu Sep 27 23:24:22 EDT 2007 | mika
Fe2+(aq) + 2e- "harply, but this is of no consequence since OH- ions are always present, even in pure water.) The cations then react with the OH- or even the H+ ions and dissolved oxygen to form a variety of compounds, which constitute rust: Fe2+(aq
Electronics Forum | Mon Jul 10 21:11:18 EDT 2000 | Dave F
Yall: Last week Mike and I got together to compare notes about our 4th of July celebrations. While similar with requisite barbecue, beer, fireworks, and Sousa; Mike won the day because of the ample selection of live music, headlined by War. Can yo
Electronics Forum | Fri May 09 09:09:22 EDT 2003 | fmonette
Phil, here is why "dry cabinet storage may not stop the clock" : The moisture diffusion inside a component is actually quite complex. When previously exposed components are returned to dry storage, the moisture gradient that is already absorbed in
Electronics Forum | Wed Nov 16 03:41:43 EST 2016 | Haizen
I need to extract data from a log file and sort the data in an Excel file. Details are as follows: - Log File is a measurement result produced by an In-Circuit Tester (no info. about it, no name, no type, nothing). - Measurement Result is from
Electronics Forum | Sat Aug 03 07:29:20 EDT 2002 | davef
IPC-PE-740 "Troubleshooting for Printed Board Manufacture and Assembly" has words to the effect of � 1.5---BAKING Laminate materials are baked several times during the manufacture of a printed wiring board. There are four major reasons for
