home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
ASME's Mechanical Engine…ing Toolkit 1997 December
/
ASME's Mechanical Engineering Toolkit 1997 December.iso
/
elec_eng
/
eepdnews.txt
< prev
next >
Wrap
Text File
|
1989-06-20
|
22KB
|
557 lines
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
ASME ELECTRICAL and ELECTRONIC PACKAGING DIVISION NEWSLETTER:
________________________________________________________________
Editor: Tim Bennett --SUMMER 1989
________________________________________________________________
*******************
*** Chairmans Remarks ***
*******************
What can a division chairman write that is profound enough to be
worth a busy engineers time? Speaking only from my own, very
limited experience, perhaps the answer is - - "not much".
What I would like to say to you if we were talking over a cup of
coffee is just 5 things.
First, I want you to know that the Electrical and Electronic
Packaging Division (EEPD) is a young division with an exciting
future and lots of opportunities for an individual.
Opportunities for professional growth, opportunities for
involvement at the national and local levels, and numerous
opportunities for leadership. Do any of these opportunities
interest you? If so, contact us.
Second, I'd want you to know that the purpose of the EEPD is to
aid and enhance the individual packaging engineer - YOU! The
problem always distills to that critical question - How? If you
have some ideas - terrific! We're looking for ideas! Again,
contact us.
Third, do you know about local chapters? A local technical
chapter is a subgroup of the local section but at the same time
has connections to a technical division (in this case EEPD).
Are there benefits for you in such a subgroup? If so, why not
participate in or initiate an EEPD chapter in your section.
Fourth, often the mechanical engineer in an electronic world
feels like an under appreciated professional. If you know what
I mean, perhaps it's to your advantage to actively join those of
like mind. There is a growing awareness that packaging
considerations (or mechanical aspects, or physical design, or
whatever words are used at your place) are becoming increasingly
critical to both performance and costs. A technical
organization that focuses on, defines, discusses, and
coordinates these forces seems appropriate for the future.
Fifth, while we are a part of the ASME, electronic packaging by
its very nature is multidisciplinary. The members of the EEPD
executive committee have used their limited time and funds since
the founding of this division to get the division functioning.
It is now time to reach out and work more closely with other
professional groups who have goals similar to ours. If you are
involved with another group, or feel we should cooperate better
with another group - please, again, let us know.
I was right - this isn't profound. But I do hope it has been
worth your time. I'm just an engineer working in an electronic
industry who happens, this year, to be the division chair. It
is clear to me that the vitality and impact of this division
rests not so much with a half dozen or so committee members, or
with the dynamic group of Journal Editors, or even the attendees
at our technical sessions, but with the participation,
involvement, and support of the EEP division members!
That's you!!
Get involved, give me a call (312/416-5188)! Or, write to me
(AT&T Bell Labs, Rm 1F-120, 200 Park Plaza, Naperville, IL.
60566)! Or, send me a FAX (312/416-4904)! Or, contact any of
the other members of our executive committee. Now would be a
good time, while you are thinking of it.
-Don White
----------------------------------------------------------------
**********************
*** BOOKS ON THE HORIZON ***
**********************
PACKAGING OF ELECTRONIC SYSTEMS
A MECHANICAL ENGINEERING APPROACH
---------------------------------
by
James W. Dally
Mechanical Engineering Department
University of Maryland, College Park, MD
A new book entitled PACKAGING OF ELECTRONIC SYSTEMS -- A
MECHANICAL ENGINEERING APPROACH is currently in the final phase
of publication. This book has been written for engineers to
serve as a first text on the packaging of electronic systems.
The material is suitable for senior or graduate level
engineering students or for practicing professionals working as
mechanical or electrical engineers with firms producing
electronic instruments or systems.
The book, an introduction to packaging electronic systems,
covers a very broad range of topics from the physics of
semiconductors to the design of advanced high performance heat
exchangers. To accommodate this breadth, the text is divided
into three independent parts. Part I, which includes three
chapters, deals with foundations for design. Chapter 1 is
descriptive of the entire field covering in some detail the
mechanical design issues which arise in developing electronic
systems. Also, covered are business aspects of this industry
particularly as they are related to a rapidly changing
technology which leads to early obsolescence of an existing
product line and exacting requirements for investing in new
product development. Chapter 2 describes electronic components
with emphasis on semiconductor devices. Importance is placed on
silicon technology and the continuous development of logic and
memory circuits with higher levels of integration. We try to
show in this chapter the dynamics of the technology and the
emerging technological problems associated with the introduction
of VLSI. The most important problems include handling high I/O
counts and dissipating very large heat flux with exceedingly
small temperature differences. Chapter 3 covers circuit
analysis. The conventional methods of analysis of ordinary ac
and dc circuits are briefly reviewed. However, the emphasis is
placed on transmission lines where the inductance, resistance
and capacitance is distributed. This development is new to most
mechanical engineers, and it is critical to their understanding
of propagation delay, line charging and pulse reflections which
must be taken into account in the design of even moderate
performance systems.
Part II deals with the three basic levels of packaging
electronic components. The chip carrier, the first level
package, is treated in detail in Chapter 4. Both pin-in-hole
and surface mounted chip carriers are covered. The printed
circuit board, the second level package, is described in Chapter
5. The treatment is often descriptive in nature, providing an
opportunity to introduce the terminology used in the industry to
denote circuit board features. Some of the very difficult
problems associated with component placement and trace routing
are introduced in this chapter with simple examples. The
manufacturing process associated with production of circuit
boards is described in Chapter 6. The final chapter in Part II
which covers third level packaging describes many components
encountered when a number of printed circuit boards is enclosed
in instrument cases or cabinets. Connectors, back panels,
cabling and both commercial and military enclosures are treated
in some detail.
Analysis methods commonly employed to predict performance of
systems are covered in Part III. Chapter 8 deals with heat
transfer by conduction.
Basic conduction equations are reviewed and applications to
problems arising in conducting the heat generated on a chip to
the heat sink are given. Heat transfer by radiation and
convection are treated in Chapter 9. The final chapter covers
vibration of components and circuit boards. Here the emphasis
is on simple analytical procedures which give insight on methods
to reduce transmissibility coefficients and if possible to avoid
resonance conditions. Failure by fatigue is recognized as a
major problem in systems exposed to vibration and methods of
fatigue analysis fragility charts are described for electronic
components.
The book does differ to some degree from the conventional design
text book commonly found in Mechanical Engineering. We have
attempted to introduce business aspects of design. Of
particular importance here is the fact that the market price of
a product drives the design. Some of the thought process
associated with product development is covered by describing
design and manufacturing aspects (good and bad) in the narrative
parts of the text. Exercises are given at the end of each
chapter and many of them are markedly different than those found
in the usual engineering text book. They require the student to
do much more than plug and chug. The student will sketch,
prepare graphs describing solution space, conceive new designs
better than existing designs, write engineering briefs,
interpret solutions and draw conclusions related to design
merits, and make judgments based on business aspects.
The book is to be published by McGraw Hill Publishing Company
and should be available in early 1990.
----------------------------------------------------------------
**********************************
*** HEY BUDDY, CAN YOU SPARE A DOLLAR? ***
**********************************
The EEPD requests that each division member consider donating
one dollar ($1.00) or five, or even ten dollars to our treasury.
If each member donated at least $1.00 a year, EEPD could greatly
increase its activities for the division membership, e.g.
additional newsletters, engineering resource material, etc.
Make checks payable to "ASME-EEPD" and mail to Fred Goldfarb,
ASME, 345 East 47th Street, New York, NY 10017. Thank you so
much for your contribution.
Yes, I will contribute $ _______ to EEPD
MAIL TO: Fred Goldfarb
ASME
345 East 47th Street
New York, NY 10017
NAME: ___________________________________________________
FIRM ORGANIZATION: ______________________________________
ADDRESS: ________________________________________________
CITY: _____________________ STATE: ______ ZIP CODE ______
COUNTRY:_________________________
----------------------------------------------------------------
*****************
*** FROM THE EDITOR ***
*****************
To rephrase the Chairman's opening statement, what can the EEPD
newsletter editor publish that is important enough to be worth a
busy engineers time? The answer to this question should come
from you the reader and doer.
EEPD division and newsletter is and for the division members and
those interested in packaging. To keep the division growing and
the newsletter interesting, we need submittances from you.
Possible topics of articles for the newsletter are:
* call for papers
* upcoming conferences, events, courses
* past conferences, events, courses
* what your university or company is doing in packaging
* what your university has to offer in packaging
* new literature and software
* who is moving up or out
* personal awards
* obituaries
* cartoons
* general points of interest
-- Or anything else you feel would be of interest to the other
readers on a local, national, or international level. In
addition to text, we are able to print photos, charts, graphs,
and drawings to accompany your article. If you have a
photograph of yourself, or graphics and/or photographs
pertaining to your article, please submit it with your article.
Because this is a members newsletter ASME, EEPD, and the editor
do not necessarily endorse, recommend, or concur with the
articles printed. It is up to the reader to determine if the
information in the article is for them.
We are allowed to publish one newsletter per year using ASME
newsletter funds. To print more often, preferably twice per
year, we need help from the EEPD members in terms of donations
and articles. We will be publishing another newsletter in
October of this year using the 1990 funds, if you have an
article you would like printed, please submit it to me by the
last week in August.
To close, I hope you have found something of interest in the
newsletter. I am always open for comments and suggestions to
improve the paper. For information or suggestions on the EEPD
newsletter contact:
Tim Bennett
E-Systems, Melpar Div.
11225 Waples Mill Road
Fairfax, Virginia 22030
703-385-5880 ext. 1896
----------------------------------------------------------------
***********************************
*** THE JOURNAL OF ELECTRONIC PACKAGING ***
***********************************
The first issue of the ASME Transaction Journal appeared in
March 1989.Its goal is to treat, on a high level, the practical
problems facing engineers, scientists, and researchers in an
explosive new field.
Major subjects for journal articles include micromechanics and
stress analysis, heat transfer and fluid flow management,
physical design and architecture, failure prevention, surface
solder, dynamics, materials and processing, manufacturing,
computer methods, electrical contacts. The Journal is also
intended to be a seminal body for organizing conference
symposia, publishing discussions, news items, book reports, and
to serve as a lively source of information.
The Technical Editor is Peter A. Engel, Professor of Mechanical
Engineering at SUNY Binghamton (formerly of the IBM Endicott
Laboratory). Articles submitted to the Journal are reviewed by
recognized experts in the field. The Editorial Board invites
contributions from the wide engineering/ scientific community,
and will strive to facilitate a rapid turn-around time.
----------------------------------------------------------------
****************
*** EEPD and MI 90 **
****************
Tentative plans are underway for EEPD to sponsor a session at
Manufacturing International 90 in Atlanta, Georgia, March 25-28,
1990. Dr. Abhijit Chandra, of the University of Arizona, is the
EEPD manufacturing liaison and will be chairing this session.
Anyone wishing to present a paper or give a talk should send a
abstract ASAP to Dr. Chandra at the address listed below.
Also, volunteers are needed to review papers and serve on his
committee.
Dr. Abhijit Chandra
Aerospace and Mechanical Engineering
University of Arizona
Tuscon, AZ 85721
(602) 621-2080
----------------------------------------------------------------
************************
*** ELECTRONIC PACKAGING ***
*** AT THE ***
*** UNIVERSITY OF MARYLAND ***
************************
The University of Maryland, with support from the National
Science Foundation, has established a University/Industry Center
of Research called Computer Aided Life Cycle Engineering (CALCE)
for electronic design. The focus of the CALCE Center research
is on the design of first, second, and third level electronic
packages from an integrated life cycle engineering viewpoint, in
which reliability, producibility, maintainability, and cost are
considered in addition to performance. For example, issues such
as thermal management, stress-strain control, moisture ingress,
and corrosion are integrated into the design process as inputs
to reliability prediction models which in turn input to
maintainability prediction models which in turn input to
maintainability prediction models. Research is being conducted
on such packaging issues such as hermeticity, die bonding, wire
bonding, lead and lid sealing, component mounting, component
placement. thin via fatigue, connector stresses, etc., but the
emphasis is on improving the package as a multi-objective
problem.
Presently, the CALCE Center is supported by the Navy at China
Lake, Control Data Corporation, General Dynamics, GTE, Northrop,
Texas Instruments, and Westinghouse Defense Electronics. The
CALCE Center employs twelve faculty members from a variety of
departments, ten full time staff members, and over fifteen
graduate students. Dr. Michael Pecht is the Director of the
CALCE Center, is an associate professor with a joint appointment
in the Departments of Mechanical Engineering and Systems
Research at the University of Maryland, and is also the editor
to the IEEE Transactions on Reliability. For additional
information contact:
Dr. Michael Pecht
The University of Maryland
College Park Campus
Mechanical Engineering
College of Engineering
College Park, Maryland 20742
----------------------------------------------------------------
****************
*** RESEARCH NEEDS ***
****************
The EEPD is in process of establishing a working committee on
research. One objective of the committee is to identify
research needs in the area of electronics physical design, i.e.
areas of technology where there are voids in information.
Another objective involves the initiation of action to address
such needs using the resources available through ASME, and by
coordination with outside groups such as foundations, institutes
or other technical societies.
You are invited to contribute ideas and suggestions which
identify research topics, or which may lead to the
identification of research needs. You are also invited to
participate as a member of the EEPD Research Committee should
you have an interest in research and the identification of
research needs.
Please submit your suggestions, statement of interest and
requests for further information to:
Warren C. Fackler, P.E.
Telesis Systems, Inc. P.O.
Box 219
Ceder Rapids, Iowa 52406
(319) 363-2675
----------------------------------------------------------------
********************************************
*** ELECTRICAL & ELECTRONIC PACKAGING DIVISION ***
*** (founded in 1983) ***
*** 1988-1989 ***
********************************************
_____________________
Executive Committee
1988-1989
_____________________
Chairman:
Donald H. White,PhD,PE
AT&T Bell Laboratories
Indian Hill Park
200 Park Plaza, Room IF 120
Naperville, IL 60566
312-416-5188
Secretary-Treasurer:
Christopher G. Morosas
Digital Equipment Corp.
MS LKG 1-2/H17
550 King Street
Littleton, MA 01460-1289
508-486-7922
Program Chairman:
Anthony J. Rafanelli,PE
Raytheon Company
Submarine Signal Division
1847 West Main Road
Portsmouth, RI 02871
401-847-8000 Ext. 4850
Senior Editor, EEPD Journal:
Peter Engel,PhD,PE
Dept. of Mech. Engr.
SUNY Binghamton
Binghamton, NY 13901
607-777-6216
Members:
Sevgin Oktay
IBM Corporation
P.O. Box 950
E61-996-1
Poughkeepsie, NY 12602
914-432-1756
Allan D. Kraus,PhD
49 Country Club Gate
Pacific Grove, CA 93950
408-646-2730/649-8276
Jay S. Abramowitz,PhD
UNISYS
322 N. 2200 West
Salt Lake City, UT 84116
801-594-6287
Past Chairman:
Warren C. Fackler
Telesis Systems, Inc.
P.O. Box 219
Cedar Rapids, IA 52406
319-363-2675
_____________________
STANDING COMMITTEES
_____________________
Membership and Chapters:
Walker B. Kelly
Rockwell International
Collins Government Avionics Division
400 Collings Road, NE
Cedar Rapids, Iowa 52498
319-395-5418
Protective Packaging:
Sergei G. Guins
Kaser Associates, Inc.
4496 Dobie Road
Okemos, MI 48864
517-349-0587
Education Task Force:
Bharat S. Thakkar,PhD
AT&T Bell Laboratories
Room 1H,8B-205
Naperville, IL 60566
312-979-3790
Research Task Force:
Warren C. Fackler,PE
Telesis Systems, Inc.
P.O. Box 219
Cedar Rapids, IA 52406
319-363-2675
Newsletter Editor:
Timothy J. Bennett
E-Systems, Melpar Div.
11225 Waples Mill Road
Fairfax, Virginia 22030
703-385-5880
----------------------------------------------------------------
*********************************
*** EEPD ENJOYS SUCCESS AT 1988 WAM ***
*********************************
The Electrical and Electronic Packaging Division (EEPD) enjoyed
a successful turnout at the 1988 Winter Annual Meeting (WAM)
this past November in Chicago. EEPD sponsored seven technical
sessions dealing with failure analysis, stress analysis, heat
transfer/ thermal management, distribution environments,
vibration, and surface mount reliability. EEPD received
excellent feedback on the quality of the program.
The executive Board would like to thank all session
chairpersons, vice chairpersons, authors, and panelists for
their efforts which led to a successful meeting.
________________________________________________________________