YIN XIONG, Ph.D

858-***-****

San Diego, CA www.linkedin.com/in/yinxiong/ acpz1o@r.postjobfree.com

EXPERIENCED ELECTRONICS THERMAL ENGINEER:

Over 8 years hands-on experience on designing and implementing thermal management (electronics

cooling) solutions for various consumer electronics, including recent three years working as the lead

thermal engineer for three smartphone projects in a major mobile devices company, from conceptual

design all the way to product release.

Worked for 5 years as a research scientist in the new material development industry to develop new

graphite-based electronics cooling solutions in a world-class material R&D center;

In-depth and broad academic experience in thermal science/engineering from B.S. to Ph.D., covering

areas like: combustion/turbulence interaction, laser diagnostics, thermal-stress analysis, etc.

Familiar with engineering tools like: CFD (Flotherm, IcePak, SolidWorks Flow Simulation) and FEA

(ANSYS) modeling, MCAD tools (Catia, SolidWorks), MatCAD, Matlab, LabView, etc.

PROFESSIONAL EXPERIENCE

Nokia Smart Devices, San Diego, CA 2011 – 2014

(Acquired by Microsoft Devices Group in April, 2014)

Thermal Specialist:

Design, implement and test thermal solutions for smartphone projects which involve intensive thermal simulations

(CFD), power management optimization, concurrent thermal/mechanical/PWB designs and material selections,

thermal mitigations configuration and tuning, and rounds of hands-on lab tests, from product conception all the

way to their releases.

Worked as the lead thermal engineer and successfully delivered thermal solutions for three Windows

8/8.1 smart phones. The smart phone projects are: Lumia 928, the flagship phone for Verizon; Lumia

929/930 Icon, flagship phones for Verizon and worldwide operators; and Lumia 830, the value level

phone for AT&T and worldwide operators. These smart phones achieved the lowest end-user complaints

for their thermal issues within the entire Windows Phone ecosystem.

Proactively led the effort of designing and implementing a reliable procedure and HW/SW platform to

thoroughly test and evaluate smart phone’s thermal/power performance, the effectiveness of the hardware

cooling solution and software mitigations. The test procedure and platform dynamically correlate multiple

levels of temperature and power measurements with thermal mitigation activities during thermal tests.

The platform demonstrated its effectiveness by uncovering a deep-rooted and dangerous defect in

Windows Phone thermal framework firmware.

Gradually and significantly changed the way of projects working on thermal issues and co-workers’

mentality on thermal challenges. These changes include: more and more proactive role the thermal

engineer must take on, the way of cooperating, communicating among cross-functional groups within

project team to handle design trade-offs for thermal issues, much higher priority and earlier involvement

for thermal design at project management level.

GrafTech International, Parma, OH 2006 – 2011

R&D Scientist (thermal management):

Led the research and application engineering effort to develop and apply graphite heat spreader-based thermal

solutions for broad range of consumer electronics, supported both internal new material developments and

external sales for designed-in electronics thermal solutions.

My research and application engineering works were instrumental for graphite heat spreaders to become

the mainstream passive thermal management solution for consumer electronics and resulted growing

multi-million dollar annual sales revenue for GrafTech;

Yin Xiong, Ph.D 858-***-****) Page 2

Helped to build the first sales presentation and multiple following “sales sheets” specifically targeting the

different consumer electronic sections for GrafTech’s thermal solution materials business

Performed product qualification tests which qualified GrafTech to become the preferred thermal solution

vendor for several major electronics manufactures globally;

Developed an innovative test method to characterize flat panel TV’s thermal-related visual performance;

Performed material thermal and mechanical characterization tests (with wind tunnel) on graphite foams

heat exchangers for military aviation electronics applications;

Totally 3 US patents, 2 industry conference papers, 1 cooperate R&D technical memorandum resulted

from my work, won one “CEO awards for performance”;

Nokia Mobile Phones, San Diego, CA 2001 – 2006

Thermal Design Engineer:

Design and test thermal solutions for mobile phones.

Developed and implemented the specifications, procedures, methods and tools for thermal managements

and tests for CDMA mobile phones;

Helped to create the thermal management section of Nokia’s internal “standard product requirements”

which strongly impact the safety, reliability and quality issues for mobile products;

Performed system level thermal design, test, simulation, verification, and analysis for more than 30 Nokia

CDMA and GSM mobile phones, plus some ODM and competitors’ products;

Developed and implemented an automated thermal test system with LabView and TestStand, and the ATE

system covers most procedures of the thermal tests including: data acquisition, instruments control (IR

camera, base station, scopes, logic analyzer, etc.) and report generation. This automated thermal test

platform significantly improved the efficiency of the in-lab thermal tests;

Applied Energy Research Center, NC State University, Raleigh, NC 1997 – 2001

Research Assistant, graduate student for Ph.D

Performed experimental study on combustion and flow field interaction, authored 3 journal publications

and several conference papers;

Implemented advanced optical (laser) diagnostic techniques for combustion system measurements, such

as 2-line OH-PLIF thermometry;

Intensive LabView and Matlab programming for data acquisition, real time motion control, process

synchronization, and image processing;

Fire Science Center, University of New Brunswick, Fredericton, NB, Canada 1996 -1997

Research Assistant, graduate student for master degree:

CFD and FEA modeling with ANSYS to do thermal and stress analysis on a flame-engulfed industry

propane tank. One conference paper published based on this work.

Automation Research and Design Institute of Metallurgical Industry, Beijing, PR China

System Design and Test Engineer 1992 – 1995

EDUCATION

Ph.D in mechanical engineering with minor in electrical engineering, North Carolina State University,

Raleigh, North Carolina, USA, 2001;

Master in mechanical engineering, University of New Brunswick, Fredericton, New Brunswick, Canada,

1997;

Bachelor in thermal physics engineering, Tsinghua University, Beijing, P.R.China, 1992;

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