overview of sandia national laboratories mems ...scme-nm.org/files/sandia_mnt_scme_2011.pdf ·...
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Overview of Sandia National Laboratories
MEMS TechnologiesMEMS Technologies
Dr. Keith Ortiz, ManagerMEMS Technologies Department, 1749
Microsystems Science, Technology & Components CenterS di N ti l L b t iSandia National Laboratories
May 9, 2011Sandia National Laboratories is a multi-program laboratory operated by Sandia C ti h ll d b idi f L kh d M ti f th U S
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Corporation, a wholly owned subsidiary of Lockheed Martin company, for the U.S. Department of Energy's National Nuclear Security Administration undercontract DE-AC04-94AL85000.
SAND2010-8720
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Contents
• Sandia National Laboratories
• What are MEMS?What are MEMS?
• How are MEMS made?
• SUMMiT™: Sandia Ultraplanar, Multilevel MEMS Technology
• Working with Us
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Sandia National Laboratories
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“Exceptional service in the national interest”since 1945
AT&T: 1949–1993 Martin Marietta: 1993–1995Lockheed Martin: 1995–Present
Government-Owned Contractor-Operated (GOCO) Federally Funded Research & Development Center (FFRDC)
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Part of the DOE National Laboratory System and Production Sites
Pacific Northwest
Idaho
F i
Argonne
Brookhaven
LawrenceBerkeley
Sandia
Ames
Thomas Jefferson
Fermi
NationalEnergy Technology
KCP
PrincetonLawrenceLivermore
Stanford Linear
NationalRenewableEnergy
Y 12
Oak Ridge
Los Alamos
Sandia
JeffersonAccelerator Center
SavannahRiver
Y-12
Pantex SRP
KEY:
= NNSA Labs
= Production Sites
= Science
= Nuclear Energy = Energy Efficiency and Renewable
= Fossil Energy
= Environmental Management
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= Nuclear Energy Energy Efficiency and Renewable
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Sandia’s People
On-site workforce: 11,200 FY08 permanent workforce: 8,400 FY08 gross payroll: $886.1M
FY08 b d t $2 3B FY08 budget: $2.3B
Technical Staff (3,844) by Degree(End of FY08)
Computing 16%
El t i l E i i 19%
Other Fields 17%
Chemistry 4%Math 2%
Other Science 4%Physics 6%
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Mechanical Engineering 16%Electrical Engineering 19%
Other Engineering 15%
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Four Modern Mission Areas
Nuclear Weapons D f S t d A tNuclear Weapons
Homeland Security d D f
Defense Systems and Assessments
and Defense
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Energy, Resources and Nonproliferation
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Enabled by Strong Science and Engineering
Research Disciplines
MaterialsPulsed PowerComputerScience ate a sPulsed PowerScience
EngineeringSciences
Micro Electronics Bioscience
Sciences
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Microsystems Engineering Sciences d A li ti (MESA)and Applications (MESA)
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What are MEMS?What are MEMS?
L 3 F l l b litt 45 d i
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Laser, 3 Fresnel lenses, beam splitter, 45 degree mirror
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MEMS are everywhere!What are MEMS?
$7.8B market in 2008, growing at ~14% per year*
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Top MEMS Manufacturers in 2009What are MEMS?
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Example: Analog Devices ADXL50 Accelerometer
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Creative ForcesWhat are MEMS?
W k t Mi S l
Driving the application of MEMS in the marketplace
Make Things Smaller Reduce Cost Work at Micro Scales
Create Arrays Integrate
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How are MEMS made?How are MEMS made?
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How are MEMS made?MEMS technology is derived from
standard CMOS technologiesg
Lith h Et hiD iti Lithography EtchingDeposition
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Surface MicromachiningHow are MEMS made?
1980s
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Example One Layer Process (1)How are MEMS made?
Start with single-crystalsilicon wafer
Deposit layerof sacrificial oxide
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Example One Layer Process (2)How are MEMS made?
Dark Field MaskMask
Spin on light-sensitivephotoresist
Expose photoresist to light using oxide mask
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Example One Layer Process (3)How are MEMS made?
Develop photoresist
Etch awayoxide not protectedby photoresist
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y p
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Example One Layer Process (4)How are MEMS made?
Strip off photoresist
Deposit conformallayer of polysilicon
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Example One Layer Process (5)How are MEMS made?
Clear Field
Spin on light-sensitivephotoresist
Mask
Expose photoresist tolight using polysilicon mask
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Example One Layer Process (6)How are MEMS made?
Develop photoresist
Etch awayEtch awaypolysilicon notprotected by photoresist
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Example One Layer Process (7)How are MEMS made?
Strip off photoresist
Etch away sacrificialoxide to complete
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Example One Layer Process (Final Product)
How are MEMS made?
( )
Flexible cantilever style arms
Hole in oxide created anchor post
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Bulk MicromachiningHow are MEMS made?
Wet Etch Pressure Sensors 1960s
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Deep Reactive Ion Etching (DRIE) MicromachiningHow are MEMS made?
“Bosch Etching” ~1994
Basic ProcessBasic ProcessBasic ProcessBasic Process
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SUMMiT™: Sandia Ultraplanar, M ltil l MEMS T h lMultilevel MEMS Technology
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SUMMiT™ Process Layers
SUMMiT V™
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All PolySi is doped with Phosphorus
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Chemical Mechanical Polishing (CMP)
SUMMiT V™
Pre CMPPre CMP Post CMPPost CMP
Planarized Planarized SurfaceSurface
P l iliP l ili
OxideOxide
PolysiliconPolysiliconPolysiliconPolysilicon
PolyPoly OxideOxide
Planarized Oxide
Planarized Oxide
PolyPoly OxideOxidePolyPoly
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Complex structures can be built using CMPComplex structures can be built using CMP
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SUMMiT™ Process Cross-sections:Released Structure (Double Ratchet)
SUMMiT V™
FIB cross-section of fabricated SEM perspective deviceview of fabricated
device
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SUMMiT V™ Process Cross-sections:Double Ratchet
SUMMiT V™
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SUMMiT V™ Example: Six Gear Train
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SUMMiT V™ Extension: SUMMiT With Integrated Fluid Technologies (SWIFT™)
Silicon nitride layers are optically transparent and insulating
g g ( )
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SUMMiT V™ Example: Optical Programmable Array Logic (OPAL)g ( )
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Working with Us
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Commercial access to SUMMiT™ V: SAMPLES Program
MEMS Prototyping on Multi-Project Wafers• 5 layers of low-stress polysilicon
S d d• Standard processes • CMP planarization • Batch fabrication • AlCu metalization layer – 0.70 µm
100 l d t• 100 unreleased parts • Release available on request
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MEMS University Alliance
• The University Alliance program – Facilitates education in MEMS – Fosters relationships with the academic community– University Alliance Design Competition (SUMMiT V™)
Texas Tech University
Air Force Institute of Technology
University of Illinois at
University of North Carolina Charlotte
Texas Tech University
University of Oklahoma
University of Utahy
Urbana-Champaign
University of FloridaNorth Dakota State College of Science
Central New Mexico Community College
Arizona State UniversityNew Mexico State University
University of ArizonaMontana State University
University of New Mexico
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Montana State University
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Contact Information
Keith [email protected]( )(505) 844-2072
www.mems.sandia.gov
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NASA ST6 Inertial Stellar Compass
What are MEMS?
p
Tech Demo
• Star-tracking camera• 3-axis system of MEMS gyros from Draper Laboratory* • TacSat-2 satellite launched in December 16, 2006• Rotation mesurement accuracy goal of 0.1 degrees• Demonstrated accuracy within about 0.05 degrees**
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* http://nmp.nasa.gov/st6/** http://www.aoas.org/article.php?story=20080421114426719
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Raytheon Excalibur (155mm)
What are MEMS?
( )
One of about four MEMS guided munitions programs
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General Electric MEMS Microswitch
What are MEMS?
A Paradigm shift in Electrical Distribution & Control
MEMS-Solid-state Hybrid Switchy• <1 µsec operation • 400 volts per switch• 0.25 amps per switch •>10 million cycles lifey• Low “on” resistance • High “off” isolation
Benefits• Size, weight, integration• Fault current limiting • Arc-less AC and DC switching
Beam
Gate Beams
Gate
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Contact