1

Advanced Thermal Management Technology: Game-Changing Opportunities and

Transformative Research

Avram Bar-CohenDepartment of Mechanical EngineeringUniversity of Maryland at College Park

Plenary Session 5-15-1IMECE 2010

November 16, 2010

Monologue…Dialogue.. Polylogue - an EPPD Conversation

Situational Awareness: US Electronic Industry

Situational Awareness:US Thermal Packaging

Game-Changing Opportunities Transformative Research

2

3

• Advanced design and architecture in US

• COTS driving technology decisions

• Software development migrating off-shore

• Application software.…cottage industry

• Lower cost labor, capital, and taxes dominate manufacturing

decisions

• Chip production, packaging, and assembly shifted off-shore

• Technology/Business Confrontations ….always won by Business pragmatism

Situational Awareness:US Electronic Industry Practice

4

• US Industry has lost its hardware “nerve”

• Little audacious – chutzpadik - engineering

• Supercomputer..superjumbo’s...PV’s…..Maglevs...hybrid cars……US not leaders

•Compromising US economic/physical security

• Without high “added value” industry, US can not sustain living standard or global influence

Situational Awareness:US (Electronic) Industry Perception

No Guts …No GloryNo Audacity …No Added Value   

5

• Research on “low yield” micro/nano spreaders, TIMs, heat sinks, coldplates

• Application limited by COTS manufacturers

• Performance at the “thermally-limited” state

• Thermal Solution dominates weight/volume

• Paradigm shift to 3D

• Need for heterogeneous Microsystems

Situational Awareness: US Thermal Packaging

6

• Miniaturized thermal management components• Decimation of on-chip Hot Spots • Designing for “duty-cycle” transients • Embedded on-chip Thermal Management• Thermal interconnects for 3D• Heterogeneous design and optimization • Microfluidic (liquid) cooling• Ebullient and evaporative liquid cooling

Game Changing Opportunities

7

Transformative Research:the “I’s” have it

• There is no “I” in TEAM, but • There is an “I” in

Imagine – Invent – Innovate – Implement• 4I’s in the Stages of Transformative Research: Impossible >> Improbable >> Inevitable

>> Incredible!!• The Inabler:

Thermal Management of electronic systems!