Electronics Forum | Mon Jun 04 18:23:41 EDT 2007 | greggc09
Patrick Q1) Is the test pattern similar to the IPC-B-25? A1) - No - Tests were run on a prototype assembly. Q2) what is the temperature in the test chamber and voltage supplied to the test coupons? A2) 25C with 3.3VDC. Q3) Does this test i
Electronics Forum | Sat Aug 28 09:23:36 EDT 1999 | Mike McMonagle
| I have looked through the IPC web page and surfed to frustration. Can somebody give me a lead? | Check out the EasyBraid website below, they carry IPC standard coupons, flux test kits and SIR meters at reasonable prices.
Electronics Forum | Fri Jun 27 14:52:00 EDT 2003 | davef
Running a spare board with each job would be expensive. Consider running boards: * That were scrapped by your fabricator. * Without components. Admittedly you loose a measure of the contamination provided by your component suppliers, but if it's a
Electronics Forum | Tue Jan 06 09:33:06 EST 2009 | blnorman
Years ago when we ran a solder paste evaluation we used the 2.4.44 method mentioned above. What we did was to print several coupons and let them sit for various times to see how the tack changed over time. Our goal was to see how long after print w
Electronics Forum | Mon Feb 23 14:44:08 EST 2009 | sunny
Are boards produced using Vapor phase ovens dirtier than N2 Reflow oven. Are there any studies/papers someone can point to? if not what are the methods to verify this? is IPC specified SIR test using 24B SIR test coupons? please advise. thanks in adv
Electronics Forum | Tue Nov 17 11:53:42 EST 2009 | heba66
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Electronics Forum | Tue Nov 17 11:55:13 EST 2009 | heba66
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Electronics Forum | Mon Nov 30 02:15:29 EST 2015 | andrei8686
For PCB prototype, I strongly recommend pcbway(http://www.pcbway.com/q I always buy pcbs from them. Buyers have coupons to save cost. The boards are pretty good with high quality. I also appreciate their delivery time. I think about making thousands
Electronics Forum | Mon Apr 17 14:43:35 EDT 2017 | davef
Measurement of Conformal Coating thickness on Printed Circuit Boards [ http://www.defelsko.com/applications/conformal-coating/printed-circuit-boards.htm ] I receive no benefit from the supplier mentioned above. IPC-HDBK-830A, 8.11.1 talks to measu
Electronics Forum | Tue Jun 06 04:58:23 EDT 2000 | Donnie
I am having a problem with the masking coming off and the traces disappearing on the coupon boards on my WaveRider after only 25 to 30 runs. Has anyone else been experiencing this same type of issue? I spoke a rep at ECD and their response was that i