Electronics Forum | Thu Apr 03 09:27:04 EST 2003 | davef
First, welcome to SMTnet. On your question, are you talking about control charts? If so, here's some background on control charts http://deming.eng.clemson.edu/pub/tutorials/qctools/ccmain1.htm What are you plotting: * Independant variables? * De
Electronics Forum | Wed Jul 02 10:19:08 EDT 2003 | caldon
It kills me when people say "We have been doing this for 10 years and we will not change" guaranteed one day the shite will hit the fan when they have a screw up. We have ran into this before... Until/unless they are willing to work with you you wil
Electronics Forum | Mon Apr 12 22:50:46 EDT 2004 | davef
For more information on flame retardents, try these sites: * http://www.bsef.com * http://www.firesafety.org For the summary of a study into flame retardants try: http://www.surrey.ac.uk/PRC/ IVF carried out an international study on alternati
Electronics Forum | Wed Oct 18 19:52:09 EDT 2006 | davef
Ted Dangelmayer's book [ESD Program Management: A Realistic Approach to Continuous Measurable Improvement in Static Control; Dangelmayer, T; Kluwer Academic Pub 1999 e2; 0412136716] is excellent. Often, ESD supplies sales-types use the "Chicken Littl
Electronics Forum | Fri May 22 10:32:51 EDT 2009 | patrickbruneel
By law any forthcoming legislation in this area needs to be in compliance with http://www.nepa.gov/nepa/regs/nepa/nepaeqia.htm This requires an Environmental Impact Report (EIR) be prepared. Such a report has been done by the EPA in 2005 �Solders i
Electronics Forum | Mon Aug 14 18:24:36 EDT 2000 | Dave F
James: Here's a starting point: 1 www.wwnet.net/~rkroy/wp-inb.html 2 www.sas.com/otherprods/jmp/Home.html 3 www.micromeg.com/ 4 Boeing SQC (avail. from Boeing for $100) is a good little package for DOS machines. 5 For Windows, SPC KISS from Air Aca
Electronics Forum | Wed Sep 22 22:13:51 EDT 1999 | Dave F
| Dear all, | | First, I'd like to thank every one of you who have been a great help for my last questions. | | Then, I have heard that in multilayer ceramic capacitors, each layer of ceramic was about 3 micrometers at least. When adding the layer
Electronics Forum | Tue Mar 18 23:19:46 EST 2003 | jonfox
I just came back from the UK, and the anti-American attitude is very similar to our new found anti-French attitude. My only question is what, if anything, do French owned companies have to do with its goverment's decision to not agree with our Presi
Electronics Forum | Fri Mar 11 18:47:54 EST 2005 | davef
JD: It's important to note that FR-4 does not contain PBB or PBDE. The bromine in FR-4 epoxy comes in the form of tetra-bromo-bisphenol A [TBBA], which polymerizes and become part of the cross-linked epoxy. Bromine, in the form of hydrogen bromide, i
Electronics Forum | Thu Mar 23 12:11:20 EST 2006 | patrickbruneel
Here's a (427 page) EPA report on Solders in Electronics: A Life-Cycle Assessment http://www.epa.gov/opptintr/dfe/pubs/solder/lca/lfs-lca-final.pdf If you look at page ES-16/table ES-4 and ES-5 it appears that SAC alloys have a higher impact on the
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