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January 2010

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From:
Dean Stadem <[log in to unmask]>
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Date:
Tue, 26 Jan 2010 18:36:56 -0600
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John Barnes, a walking tribute to engineering........

R. Dean Stadem
Consulting Engineer
Analog Technologies Corp./Lumagine, Inc.
11441 Rupp Drive
Burnsville, MN 55431
(952)894-9228
[log in to unmask]


-----Original Message-----
From: Leadfree [mailto:[log in to unmask]] On Behalf Of John Barnes
Sent: Sunday, January 24, 2010 10:51 AM
To: [log in to unmask]
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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-------------------------------------------------------------------------------Leadfee Mail List provided as a service by IPC using LISTSERV 1.8d
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To temporarily stop/(start) delivery of Leadree for vacation breaks send: SET Leadfree NOMAIL/(MAIL)
Search previous postings at: http://listserv.ipc.org/archives
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