Here's a direct link to the article I got from Werner
http://www.hlinstruments.com//RoHS_articles/How%20to%20estimate%20solder%20joint%20reliability_%202%20W_Englemaier.pdf
Bob Landman
H&L Instruments, LLC
-----Original Message-----
From: John Barnes [mailto:[log in to unmask]]
Sent: Sunday, January 24, 2010 11:51 AM
To: (Leadfree Electronics Assembly Forum); Bob Landman
Subject: Re: [LF] Fodder for Discussion?
Bob,
Werner's article
Engelmaier, Werner, "How to estimate solder joint reliability, part
2," Global SMT and Packaging, vol. 7 no. 10, pp. 64-66, Oct. 2007.
can be downloaded from
http://www.globalsmt.net/documents/Issue_Archive/7.10%20US_opt.pdf
starting with page 64. This issue of Global SMT and Packaging is a
free 12MB download.
This reference and link are in the "Papers, Reports, and Magazine
Articles on Lead-Free, RoHS, and WEEE" section of my Bibliography for
Designing Lead-Free, RoHS-Compliant, and WEEE-Compliant Electronics at
http://www.dbicorporation.com/rohsbib.htm
which covers:
* Over 250 books,
* Over 220 Ph. D and Masters theses, and
* Well over 15,800 papers, magazine articles, reports, web pages, etc., all on lead-free electronics, the RoHS and WEEE Directives, and similar legislation, which I have collected since December 2004.
I personally do not trust the quality, reliability, or lifetime of any consumer electronics-- and most professional electronics-- manufactured since the beginning of 2006, specifically because they are/may be lead-free. Since 2005 I buy new electronic products only if I:
1. Can't find a satisfactory, used, pre-2006 product on Ebay.
AND
2. Believe that the new electronic product will pay for itself within
3 months.
If I buy a new, cheap electronic/electronic product, such as an LED flashlight, I'll usually buy three of them, in the hope that at least
*one* of them will work when I need it. If I buy an expensive electronic/electrical product, I'll get the longest extended warranty that the seller offers.
I have been studying electronics since 1960 and have been working fulltime in the electronics/computer industry since 1973. From 1973 to
2002 I helped develop, or developed manufacturing testers for, 115 state-of-the-art electronic products at Sycor, IBM, and Lexmark. Since
2002 I have done the electromagnetic compatibility (EMC) approval testing of over 230 products for dBi's clients. My first book Electronic System Design: Interference and Noise Control Techniques was published by Prentice Hall in 1987. Mir published a Russian translation of it in 1990. My second and third books, Robust Electronic Design Reference Book, Volumes I and II, were published by Kluwer Academic Publishers in 2004.
John Barnes KS4GL, PE, NCE, NCT, ESDC Eng, ESDC Tech, PSE, SM IEEE dBi Corporation http://www.dbicorporation.com/
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