(1) brief view of materials research in functional materials (2) commercialization processes
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(1) Brief View of Materials Research in Functional Materials (2) Commercialization Processes. Professor of Materials Science and Engineering Executive Director of Technology Commercialization Programs Email: [email protected]. Outline. - PowerPoint PPT PresentationTRANSCRIPT
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(1) Brief View of Materials Research in Functional Materials(2) Commercialization Processes
Professor of Materials Science and Engineering
Executive Director of Technology Commercialization Programs
Email: [email protected]
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Outline
• Mention of the projects in the Kingon research group, especially those related to NASA
• Few words on our technology commercialization programs
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Mainstream Silicon Devices: Gate Dielectrics
• Development of new dielectrics to replace SiO2, and the gate metals
• Part of the NCSU-led Front End Process Center
• Primarily SRC/Sematech funded
• 9 universities, about 25 faculty
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Ferroelectric Memory
• Development of ferroelectric thin films for ferroelectric nonvolatile memory
• Low density devices now in commercial production
• Many materials issues associated with the development of high density devices
• NCSU role– New materials– Advanced characterization techniques based
upon scanning probes
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Two Critical Core Competencies
• Dielectric and ferroelectric materials, especially thin films– Composite dielectrics– Materials such as (Ba,Sr)TiO3 (or ‘BST’)
which are nonlinear dielectrics
• Flexible substrates– Metal– Polymer
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Nonlinear Dielectrics for RF/Microwave Frontends
• Voltage tunable dielectrics
• Allows design of frequency agile front end systems– Varactors for band pass filters– Frequency tunable antenna systems– Different approaches for different frequencies
(patch, microstrip, resonator, EBG)
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High and Low Frequency Comparison• Materials optimization based upon low f measurements• Must justify applicability of method
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10-4 10-3 10-2 10-1 100 101
Per
mit
tivi
ty
Frequency (GHz)
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-8 -4 0 4 8
Per
mit
tivi
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Loss tan
gent · 10
-2Applied Voltage (V)
100 kHz100 kHz
100 MHz100 MHz
• Planar capacitors measured at low and high frequencies. • Tunability and loss tangent values comparablecomparable• Low frequency measurements are extendable to high frequency
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Conventional Band Pass Filter Design
• Lumped element circuit
• 200 MHz Chebychev design
Dielectric
RF out
Bondwires
BST Capacitors(Top Electrode)
DecouplingCapacitors
BST
Inductors
RF in + DC bias(via a bias-tee)
Microstrip’s Ground Plane
Ground Plane for the BST capacitors
Connect decouplingcapacitors to theground
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Conventional Filter Measurements• 3rd order Band Pass Filter (measured)
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Frequency (MHz)
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rtio
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5 V3 V
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Frequency (MHz)
Ret
urn
Los
s (d
B)
0 V5 V
3 V
• Results of NCSU filter analysis consistent with Raytheon measurements
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Embedded Passive Components
• Composite dielectrics in polymer based flexible substrates (ie HDI)
• Replace surface mounted components
• Generation 2 commercialized (35 million cell phones)
• Generation 3 being scaled
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Dielectrics on Flexible Substrates
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Gossamer
• Qortek/PSU/NCSU
• Polymer-based actuators
• Flexible electronic circuit on Kapton/copper
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Piezoelectric Applications
• Novel Cooling Concepts– Acoustic streaming– Development of acoustic resonators– Analytical modeling of piezoelectric actuators
in bending mode
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Flexible Sensor Networks
• US Air Force Project just initiating
• Strain, acceleration, pressure sensors on large flexible ‘tiles’ which are embedded onto wings structures
• Antenna array for data communication to the fuselage
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Stressed Unimorphs
• Type of low cost bending mode piezoelectric actuator
• Long-term development of these materials at NASA-Langley (plus spin-out)
• We have developed applications for these types of actuators– DARPA microrobot program– Piezoelectric solid state motors
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Rotary Thundermotor with Tachometer Wheel
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GSFC Space Telescope
• Discussion only
• Need for shutter arrays
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Part 2: Technology Commercialization Programs
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Technology Entrepreneurship and Commercialization Program
• Unique program
• Develops viable business propositions from technology sources
• Two routes– Using MBA and Ph.D science/engineering
students in a 3 course sequence– Using professional business analysts
• NASA one of the sources of technology (eg Langley optical sensors
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Program Uniqueness
• Process or methodology for the this “fuzzy front end” of innovation
• Emphasis on high tech, high growth potential
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Program Impact
• Created > 400 jobs
• Raised more that $120 million of venture funding
• Assisted the business development of about 20 companies
• Many other outcomes
• url: www.tec.ncsu.edu