Industry and University Partnership: Solid State Lighting and Display Center

Steven DenBaars, Shuji Nakamura, Umesh Mishra, Jim Speck, Evelyn Hu, Claude

Weisbuch, Chris Van de Walle, Pierre Petroff, Tony Cheetham, Fred Lange

Solid State Lighting and Display CenterMaterials and ECE Departments

University of California, Santa Barbara

UC Santa BarbaraSolid State Lighting & Display CenterIndustry Partners

Matsushita Electric Industrial Co., Ltd.

10 Industrial Partners

SSLDC FacultyShuji Nakamura-Inventor GaN blue LED & laser

Steven DenBaars-Epitaxial growth

James Speck-MBE/TEM

Umesh Mishra- Device fab

Evelyn Hu-Nanostructures-Photonic X’tal

Pierre Petroff-QDotsChris Vandewalle

-Elec. Theory

Tony Cheetham-Phosphors

Claude Weisbuch-Photonic X’tal

Fred Lange-ZnO

• High efficiency lighting system for general illumination

• Solid-state light >80% theoretical energy efficiency

• Luminous efficacy of 200 lm/watt

luminaire

GaNLED or LD

Solid State Lighting (LED-Based) Goal

0.1

1

10

100

1965 1970 1975 1980 1985 1990 1995 2000 2005

Time (years)

Lum

inou

s E

ffic

ienc

y (lm

/W)

Fluorescent

Unfiltered incandescent (13LPW)

Thomas Edison’sfirst bulb

GaAsP

GaAsP:NAlGaAs/GaAs

(red)

AlInGaP/GaP

AlInGaP/GaP(red,orange,yellow)

InGaN(blue)

InGaN(green)

InGaN(blue)

SiC(blue)

GaN LED Historical Development

White LED (133) lm/W

Compact Fluorescent (55LPW)

Energy Usage Comparison

0

10

20

30

40

50

60

Light Source

60W Bulb

CompactFluor.LED

LED and Compact Fluorescent vs. 60Watt Light Bulb ComparisonP

ower

Use

d (W

atts

)

Large markets > $15 Billion/yr

Streetlights

CellphonesTraffic signals

TVs (RP & LCD)

Large Displays

Automotive

Center Membership- Company Benefits

• Center member companies will be offered licensees on a co-exclusive basis for a period of twelve (12) months from disclosure of the invention to the University.

• First year Patent costs will be paid by SSLDC• Member Company chooses its own research

goal• Member Company can send one Visiting

Researcher a year.• Board Seat on Industrial Advisory Board

New GaN Inventions by Fiscal Year: 14 new Patents in FY05 plus 14 in FY06

(38 SSLDC patents to date)

0

5

10

15

20

25

2002 2003 2004 2005 2006

SSLDC

Total (including non-SSLDC GaN, ZnO)

SLEO low defect

Light Extraction Eff.

Conversion Efficiency

Internal Q. Efficiency

Electrical Efficiency

SSLDC Key Technologies for Energy Efficient White LED

Semi,nonpolar

ZnO mega-cone

Photonic crystal

New phosphors Contacts, semi-polar

New ZnO

Inventions per Research Dollar

Research Institution Average1

$2.4 million expended per invention disclosure

Tech Company Rule of Thumb2

$500k expended per invention disclosure

SSLDC$370k expended per invention disclosure• More Productive than Most Universities and Tech Companies!

1. Average from 2001-2003 AUTM licensing surveys.2. The Economist, October 22, 2005.

Solid-State Lighting& Display Center

SSLDC ANNUAL REVIEW 2005

Agreement TypesCo-Exclusive vs. Non-Exclusive

• Co-exclusive SSLDC inventions will only be available to member companies.

• Non-exclusiveNon-members may also license or option SSLDC inventions.

Solid-State Lighting& Display Center

SSLDC ANNUAL REVIEW 2005

Global Warming/Energy Savings Potential

If a 150 lm/Watt Solid State LED source were developed, thenin the United States alone we would:

• Realize $115 Billion cumulative savings by 2025*• Alleviate the need for 133 new power stations*• Eliminate 258 million metric tons of carbon*• Save 273 Tera-Watt-hours/year in energy**

* “The Promise of Solid State Lighting” OIDA Report , 2001, http://www.netl.doe.gov/ssl/PDFs/oida_led-oled_rpt.pdf**A. D. Little, “Energy Savings Potential of SSL” Report for Dept. of Energy,

http://www.eere.energy.gov/buildings/info/documents/pdfs/ssl_final_report3.pdf