Every company using lead-free solder should have this book. They may need
it when their customers start yelling.

"Lead-free Solder Interconnect Reliability (Hardcover) by Dongkai
Shangguan"

# Hardcover: 292 pages
# Publisher: ASM International (December 5, 2005)
# Language: English
# ISBN: 0871708167
# Product Dimensions: 1.0 x 7.2 x 10.0 inches
# Shipping Weight: 1.8 pounds.

Harvey Miller


--- John Burke <[log in to unmask]> wrote:

> I offer you the last 30 years of soldering data to show that leaded
> soldering IS reliable. The differences in the joints between leaded and
> unleaded will become apparent in any application where the joints are
> subjected to shock.
>
> Publish the data.
>
> Give me real product data in the field with RMA rates compared to leaded
> solder.
>
> And if you really believe it is "just as good" you might want to ponder
> why the telecommunications and internet infrastructure industry is
> exempt from the "lead ban" with an open ended exemption while the rest
> of the world is made into a Euro-parliament reliability beta site.
>
> John Burke
>
> -----Original Message-----
> From: Pratap Singh [mailto:[log in to unmask]]
> Sent: Friday, April 21, 2006 10:22 AM
> To: '(Leadfree Electronics Assembly Forum)'; John Burke
> Subject: RE: [LF] [NTC} No technical content whatsoever WEEE/RoHS
> Whistle blowing NTC
>
> John,
>
> What data is available to show that LF is unreliable? When T/C test is
> done
> like (-40 C to 125 C) on same product built with Sn/Pb and SAC solder,
> for
> 1000 cycles, both solder perform equally well (this data was at a
> company
> where I worked on LF issues last year. However, data will not be
> published
> for obvious reasons).
>
>
> pratap singh
> ____________________________________
> Tel/Fax: 512-255-6820; Cell: 512-663-8903
> www.rampinc.com ; EMail: [log in to unmask]
>
>
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