Nanotechnology Now







Heifer International

Wikipedia Affiliate Button


DHgate

Home > Press > Studying the force: Turner earns CAREER award for research on micro-devices

Kevin T. Turner
Kevin T. Turner

Abstract:
Imagine reading this article on an electronic screen that could be rolled up and put into a pocket. Someday, the electronics to power this kind of screen may be produced by a process that relies on a very simple tool: a stamp.

Studying the force: Turner earns CAREER award for research on micro-devices

Madison, WI | Posted on November 13th, 2009

Reliable flexible displays are only one of a variety of new microelectronic and micromechanical devices that may become possible thanks to fundamental research by Mechanical Engineering Assistant Professor Kevin Turner. Turner is studying the underlying physics and mechanics of adhesion during a process called microtransfer printing. He will use his research to improve microtransfer printing manufacturing processes, which eventually could be used to produce a host of innovative technologies, such as advanced optoelectronic devices, high efficiency solar cells, and new types of microelectromechanical systems.

His work has garnered a prestigious National Science Foundation CAREER award, which recognizes faculty members at the beginning of their academic careers who have developed creative projects that effectively integrate advanced research and education. Turner's award comes with a five-year $430,000 grant.

Microtransfer printing is essentially a process that "prints" with solid materials rather than ink. A silicone stamp is designed with a smooth side that is used to pick up micro- or nanostructures from the substrate on which they are originally fabricated. The stamp is used to transfer these structures — which may be fully processed integrated circuits or building blocks for more complex devices — and places them down on another substrate or functional device.

Traditional silicon-based microelectronic devices are constructed on thick wafers, which produce rigid devices. To create a flexible device, such as a flexible display or processor, very thin layers of single crystal silicon can be peeled from a thick substrate and placed on to a compliant substrate. Even though silicon is a stiff, brittle material, it can be made extremely flexible by making it less than 1-micron thick.

However, a key challenge is that there are few techniques available to move large-area thin layers, which are floppy and fragile. Microtransfer printing has emerged as a potential option for thin layer transfer since it can be done quickly and used to create a large number of devices.

Microtransfer printing relies on surface adhesion that occurs thanks to a force known as the van der Waals force. At room temperature, the smooth surface of the silicone stamp bonds directly to micro- or nanostructures via these forces, allowing the structures to be picked up. In nature, van der Waals forces allow gecko lizards to adhere their feet to surfaces in order to scale walls and scamper across ceilings.

Turner will use a combination of modeling and experiments to investigate the fundamental behavior of van der Waals-based adhesion in microtransfer printing processes. Based on this fundamental study, he will explore using surface texture and geometric structures on the surfaces of the silicone stamps to control adhesion. He also will identify optimal stamp designs for the pick up and release of micro- and nanostructures, will research new types of composite stamps based on materials other than silicone, and will examine how different loading techniques can be used to further control adhesion.

"If we measure the forces that govern microtransfer processes and develop computational models that capture the fundamental interfacial behavior, then we can examine higher level manufacturing questions," Turner says. "We then can use that knowledge to design more effective manufacturing processes and techniques."

In addition to his research, Turner will develop advanced graduate courses in adhesion and contact mechanics, as well as an undergraduate elective in the design and manufacturing of nano- and microsystems. He also will host local K-12 teachers in his lab during the summer and will work with the teachers to develop lesson plans about nanotechnology for elementary and high school students.

####

About University of Wisconsin-Madison
In achievement and prestige, the University of Wisconsin–Madison has long been recognized as one of America's great universities. A public, land-grant institution, UW–Madison offers a complete spectrum of liberal arts studies, professional programs and student activities. Spanning 933 acres along the southern shore of Lake Mendota, the campus is located in the city of Madison.

For more information, please click here

Copyright © University of Wisconsin-Madison

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press

News and information

Hong Kong Investors Bullish on Dais Analytic Invest $5.75M, Provide $60M Contract, and Create New Joint Venture Company March 26th, 2015

Industrial Nanotech, Inc. Announces Next Large Order from the Oil and Gas Industry March 26th, 2015

Quantum compute this -- WSU mathematicians build code to take on toughest of cyber attacks: Revamped knapsack code offers online security for the future March 26th, 2015

Thousands of atoms entangled with a single photon: Result could make atomic clocks more accurate March 26th, 2015

Square ice filling for a graphene sandwich March 26th, 2015

Physics

Thousands of atoms entangled with a single photon: Result could make atomic clocks more accurate March 26th, 2015

Square ice filling for a graphene sandwich March 26th, 2015

Quantum experiment verifies Einstein's 'spooky action at a distance': Griffith University, University of Tokyo homodyne measurements show what Einstein did not believe to be real: the non-local collapse of a particle's wave function March 25th, 2015

Bar-Ilan U. researchers identify 'tipping point' between quantum and classical worlds: Study sheds new light on 'spooky' quantum optics March 24th, 2015

Quantum cause and effect March 23rd, 2015

Display technology/LEDs/SS Lighting/OLEDs

Haydale Announce Dedicated Graphene Inks Manufacturing Capability March 25th, 2015

Engineers create chameleon-like artificial 'skin' that shifts color on demand March 12th, 2015

3D printing

'Additive manufacturing' could greatly improve diabetes management March 17th, 2015

Thin films

A new method for making perovskite solar cells March 16th, 2015

Engineers create chameleon-like artificial 'skin' that shifts color on demand March 12th, 2015

Researchers synthesize new thin-film material for use in fuel cells: Article in the journal APL Materials shows how to grow Bi2Pt2O7 pyrochlore, potentially a more effective cathode for future fuel cells March 10th, 2015

Possible Futures

Nanotechnology in Medical Devices Market is expected to reach $8.5 Billion by 2019 March 25th, 2015

Nanotechnology Enabled Drug Delivery to Influence Future Diagnosis and Treatments of Diseases March 21st, 2015

Nanocomposites Market Growth, Industry Outlook To 2020 by Grand View Research, Inc. March 21st, 2015

Nanotechnology Drug Delivery Market in the US 2012-2016 : Latest Report Available by Radiant Insights, Inc March 16th, 2015

Academic/Education

SUNY Poly & M+W Make Major Announcement: Major Expansion To Include M+W Owned Gehrlicher Solar America Corporation That Will Create up to 400 Jobs to Develop Solar Power Plants at SUNY Poly Sites Across New York State March 26th, 2015

SUNY POLY CNSE to Host First Ever Northeast Semi Supply Conference (NESCO) Conference Will Connect New and Emerging Innovators in the Northeastern US and Canada with Industry Leaders and Strategic Investors to Discuss Future Growth Opportunities in NYS March 25th, 2015

FEI Joins University of Ulm and CEOS on SALVE Project Research Collaboration: The Sub-Ångström Low Voltage Electron (SALVE) microscope should improve contrast and reduce damage on bio-molecules and two-dimensional nanomaterials, such as graphene March 18th, 2015

SUNY Poly CNSE, Known One Day a Year as SUNY PI CNSE, and Tech Valley High School Celebrate Pi Day: More than one hundred students enjoy pizza ‘pi’ as they take part in fun, pi-themed activities meant to share the excitement of mathematics and science in anticipation of March 14 March 14th, 2015

MEMS

ASIC Development for MEMS Applications: A Platform Approach March 25th, 2015

STMicroelectronics Executive Vice-President Benedetto Vigna Awarded IEEE Frederik Philips Award March 12th, 2015

MIG Takes a Roll-Up-Your-Sleeves Approach with Revamped MEMS/Sensors Technical Event -- MIG welcomes technologists to MEMS Technical Congress, emphasizes working groups and breakout sessions on emerging MEMS & sensors, tech transfer and integration March 6th, 2015

French Institutes IRT Nanoelec and CMP Team up to Offer World’s First Service for Post-process 3D Technologies on Multi-Project-Wafer March 5th, 2015

Announcements

Industrial Nanotech, Inc. Announces Next Large Order from the Oil and Gas Industry March 26th, 2015

Quantum compute this -- WSU mathematicians build code to take on toughest of cyber attacks: Revamped knapsack code offers online security for the future March 26th, 2015

Thousands of atoms entangled with a single photon: Result could make atomic clocks more accurate March 26th, 2015

Square ice filling for a graphene sandwich March 26th, 2015

Grants/Awards/Scholarships/Gifts/Contests/Honors/Records

FEI Technology Award of the German Neuroscience Society Goes to Benjamin Judkewitz of the University of Berlin: Bi-annual award honors excellence in brain research during the German Neuroscience Society’s Annual Meeting, held 18-21 March 2015 March 26th, 2015

FEI Announces Image Contest Grand Prize Winner: Francisco Rangel of the National Institute of Technology, INT/MCTI, Brazil, wins the contest with his “Expanded Vermiculite” image March 23rd, 2015

Halas, Nordlander awarded Optical Society's R.W. Wood Prize: Rice University researchers recognized for pioneering nanophotonics March 21st, 2015

Hiden Instruments identified in London Stock Exchange’s ‘1000 Companies to Inspire Britain' March 21st, 2015

Photonics/Optics/Lasers

Bar-Ilan U. researchers identify 'tipping point' between quantum and classical worlds: Study sheds new light on 'spooky' quantum optics March 24th, 2015

UW scientists build a nanolaser using a single atomic sheet March 24th, 2015

Building shape inspires new material discovery March 24th, 2015

EEE Photonics Society’s Fourth Annual Optical Interconnects Conference Seeks to Bring Together the Latest Advanced Optical Interconnect Technologies, Systems & Architectures for the Next Generation of Supercomputers & Datacenters March 23rd, 2015

Solar/Photovoltaic

SUNY Poly & M+W Make Major Announcement: Major Expansion To Include M+W Owned Gehrlicher Solar America Corporation That Will Create up to 400 Jobs to Develop Solar Power Plants at SUNY Poly Sites Across New York State March 26th, 2015

New kind of 'tandem' solar cell developed: Researchers combine 2 types of photovoltaic material to make a cell that harnesses more sunlight March 24th, 2015

Caltech scientists develop cool process to make better graphene March 18th, 2015

Clean energy future: New cheap and efficient electrode for splitting water March 18th, 2015

NanoNews-Digest
The latest news from around the world, FREE




  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoTech-Transfer
University Technology Transfer & Patents
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More










ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project







© Copyright 1999-2015 7th Wave, Inc. All Rights Reserved PRIVACY POLICY :: CONTACT US :: STATS :: SITE MAP :: ADVERTISE