Electronics Forum | Fri Dec 03 04:20:18 EST 2010 | grahamcooper22
Hi In Dec 2008 the IPC J STD 004 was updated to 004B, and I am wondering what the new test conditions are for testing flux Surface Insulation Resistance and Electro Migration Potential within the new spec. I am looking for the recommended test temp
Electronics Forum | Mon Oct 21 13:40:05 EDT 2002 | slthomas
Is it safe to use the 100M ohm value found in Table 2 of J-STD-004 as a minimum for SIR with respect to flux specification acceptability? It (J4) appears to imply that that value provides some level of acceptability, but it just doesn't come right o
Electronics Forum | Mon Dec 20 10:20:14 EST 2010 | 18424
Test Resistance to ECM shall be 65C +- 2C @ 88.5% +- 3.5% All SIR Measurements shall not exceed 100 MOhm. I am not sure of voltage.
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 | Wed Sep 30 13:42:56 EDT 1998 | Chrys
Hello, I've been evaluating a bunch of wave solder fluxes and found one that is absolutely perfect. I'm so excited I can't wait to switch over. Unfortunately, I have to assure reliability, and the only test I have in-house is ionic contamination
Electronics Forum | Wed Sep 30 18:43:46 EDT 1998 | Graham Naisbitt
Chrys, Please, refer firsatly to J-STD-001 Appendix D. Now, consider: SIR testing will help define the reliability of your finished assembly - it will not tell you how clean it is. Which do you or your customer prefer? Present SIR testing de
Electronics Forum | Wed Nov 17 11:20:23 EST 1999 | Dave F
Hey Gyver: If you don�t mind (which you don�t have any choice about, because I�m going to do it anyhow, cause it�s MY word processor), I�m going to respond genericly, but still be directed to your question. Much of the following is paraphrased from
Electronics Forum | Tue May 04 14:42:58 EDT 1999 | Chrys Shea
| | I am about to embark on an effort to evaluate 3 different solder material suppliers and their recommended materials for our assembly process, in an effort to find the best supplier/material. We do mixed technology, with NOCLEAN chemistry so I wi
Electronics Forum | Mon May 10 07:53:48 EDT 1999 | Timothy O'Neill
| | | I am about to embark on an effort to evaluate 3 different solder material suppliers and their recommended materials for our assembly process, in an effort to find the best supplier/material. We do mixed technology, with NOCLEAN chemistry so I
Electronics Forum | Mon May 10 08:00:14 EDT 1999 | Timothy O'Neill
| | | | I am about to embark on an effort to evaluate 3 different solder material suppliers and their recommended materials for our assembly process, in an effort to find the best supplier/material. We do mixed technology, with NOCLEAN chemistry so
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