David,
I guess that , because of the nature of the business we are in, most of the
technology-oriented books are out-of-date as soon as or before they are
published.

I am glad to hear that there is a new vibration book by D. Steinberg in the
works.
The old vibration equations appeared to be very conservative when compared to
several sets of recent failure data I worked on. The underlying reason being
that the previous empirical fatigue correlations were developed for specific
assemblies and have not been validated for new assembly technologies (like
BGAs, CSPs). The MANTECH program also had to modify the Steinberg vibration
model for LCCC assemblies.
I'll be looking forward to the new ones because vibration  is an issue for
large components in applications where vibration is an on-going part of life.

As far as ESS is concerned, there has been some excellent papers (and
dedicated technical sessions) on that particular topic at Nepcon West during
the last few years, incl. 2000. However, ESS/HAST is product specific and has
to be tailored to every particular design and objectives. I thought that
Gregg Hobbs did a pretty good job of presenting the HASS / HAST philosophy in
his boook. Even found some useful data on the effect of ramp rates in there.

With best regards,
Jean-Paul
____________________________________________________
Jean-Paul Clech
EPSI Inc., P. O. Box 1522, Montclair, NJ 07042, USA
SMT / BGA / Flip-Chip / CSP Assembly Reliability Specialists
tel: +1 (973)746-3796, fax: +1 (973)655-0815
home page:  <A HREF="http://members.aol.com/Epsiinc1/index.html">epsi</A>
URL:
http://members.aol.com/Epsiinc1/index.html

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