Page 19 - ASME INTERPACK 2018 Program

Tutorials
Biography: Ms. Allyson Hartzell is a Managing Engineer at Veryst
Engineering with more than three decades of professional experience in
emerging technologies. Ms. Hartzell is an internationally recognized
expert in MEMS reliability and has expertise in surface chemistry and
analytical techniques for failure analysis. Prior to joining Veryst
Engineering, Ms. Hartzell was Director of Engineering for Reliability,
Failure Analysis, and Yield at Pixtronix, a wholly owned subsidiary of
Qualcomm. She was a Senior Staff Scientist in Reliability and Yield at
Analog Devices Micromachined Products Division, and has worked at IBM
and Digital Equipment Corporation. Allyson has a ScM in Applied Physics
from Harvard University and an ScB from Brown University in Materials
Engineering.
7-6 - HOW TO QUALIFY YOUR BATTERIES TO PREVENT FAILURES
AND THERMAL EVENTS
MONDAY, AUGUST 27, 2018
2:00 PM – 3:30 PM
ROOM: SANSOME, SECOND FLOOR
Vidyu Challa,
DfR Solutions, Beltsville, MD
Abstract: The rising demand for internet of things (IoT) and machine to
machine (M2M) applications makes battery power an absolute necessity.
However, reports about lithium ion batteries exploding and catching fire
continue to draw the public’s attention. How do you balance the need for
power, size, cost, and time-to-market, while still avoiding being the lead
story on the evening news? Is it enough to qualify a cell manufacturer
according to industry standards? The answer is that the majority of
compliance based testing is related to abuse tolerance. However, the vast
majority of field failures do not occur under abuse scenarios, but happen
under normal operating conditions due to manufacturing flaws or design
and system tolerance issues that cause internal shorts. Internal shorts are
unfortunately not mitigated by safety electronics. In this battery tutorial,
you will 1. Gain an understanding of lithium ion battery failure mechanisms
and the pathway to thermal runaway events 2. Learn about the top causes
of battery field failures, and the major areas where you need to have
mitigation strategies 3. Learn how cell design plays a critical role in battery He is Associate Fellow of the American Institute of Aeronautics and
safety and reliability, and what you can do from a design perspective to
prevent these 4. Learn the basic steps in a lithium ion cell manufacturing
process, and the process controls required to ensure cell safety and
reliability 5. Learn about the battery management system and its role in
system safety 6. Come away with a checklist of things you should do to
qualify your cell manufacturer - pass down requirements, trust but verify
(design, manufacturing, compliance based testing, system level tolerances,
application specific battery testing, battery management system, cell CT
scans and teardowns and lastly user education)
Biography: Ms. Vidyu Challa is Technical Director at DfR Solutions, which
she helps customers prevent battery problems from happening. Dr. Challa
works on a range of battery challenges including design reviews,
manufacturing audits, supplier qualification and root cause analysis. She
spent several years in the battery industry, developing custom battery
solutions for IOT and smart medical devices. She obtained a Ph.D. from
the University of Maryland, where her work was focused on the reliability
of electronic components. Dr. Challa teaches battery classes at
conferences and frequently writes blog articles.
7-8 - THERMAL STRESS FAILURES IN ELECTRONIC PACKAGING:
PREDICTION AND PREVENTION
MONDAY, AUGUST 27, 2018
2:00 PM – 4:00 PM
ROOM: MASON I, SECOND FLOOR
Ephraim Suhir,
Faculty at Portland State University, Portland, OR, USA,
and Technical University, Vienna, Austria
Abstract: The course contains the fundamentals of the thermal stress
problem in electronic packaging. The emphasis is on the underlying
reliability physics and predictive modeling. The objective of the course is
to teach a down-to-earth mechanical, materials, electrical or an opto-
electronics engineer of how to anticipate and prevent a possible thermal
failure in his/her design. The instructor has worked in this field for many
years, and some of his publications are indicated in the course information.
Biography: Ephraim Suhir is on the faculty of the Portland State University,
Portland, OR, USA, and Technical University, Vienna, Austria. He is also
CEO of the Small Business Innovative Research (SBIR) ERS Co. in Los Altos,
CA, USA. Ephraim is Foreign Full Member (Academician) of the National
Academy of Engineering, Ukraine (he was born in that country); IEEE Life
Fellow of the Institute of Electrical and Electronics Engineers (IEEE), the
American Society of Mechanical Engineers (ASME), the Society of Optical
Engineers (SPIE), and the International Microelectronics and Packaging
Society (IMAPS); and Fellow of the American Physical Society (APS), the
Institute of Physics (IoP), UK, and the Society of Plastics Engineers (SPE).
Astronautics (AIAA). Ephraim has authored 400+ publications (patents,
technical papers, book chapters, books), presented numerous keynote
and invited talks worldwide, and received many professional awards,
including 1996 Bell Laboratories Distinguished Member of Technical Staff
(DMTS) Award (for developing effective methods for predicting the
reliability of complex structures used in AT&T and Lucent Technologies
products), and 2004 ASME Worcester Read Warner Medal for outstanding
contributions to the permanent literature of engineering and laying the
foundation of a new discipline “Structural Analysis of Electronic Systems”.
Ephraim is the third “Russian American”, after S. Timoshenko and I.
Sikorsky, who received this prestigious award. This year Ephraim received
the 2019 IEEE Electronic Packaging Society (EPS) Field award for seminal
contributions to mechanical reliability engineering and modeling of
electronic and photonic packages and systems.
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