Navigation Links
New technique producing small things in large quantities
Date:9/5/2007

HOUSTON, September 4, 2007 Although relatively new to the market, liquid crystal display (LCD) televisions may soon be obsolete, thanks to a new technique created by University of Houston professors.

Vincent Donnelly, Demetre Economou and Paul Ruchhoeft, all of the Cullen College of Engineering, have developed a technique that allows nanotech devices to be mass-produced, which could move the television industry away from the LCD display to the superior field emission display (FED). FEDs use a large array of carbon nanotubes the most efficient emitters known to create a higher resolution picture than an LCD.

The nanotech fabrication technique that can mass produce an ordered array of carbon nanotubes and make FEDs happen promises to remove some of the largest practical barriers to mass-producing nanotech devices, Economou said.

Dubbed nanopantography, the method uses standard photolithography to selectively remove parts of a thin film and etching to create arrays of ion-focusing micro-lenses small round holes through a metal structure on a substrate, such as a silicon wafer.

These lenses act as focusing elements, Donnelly said. They focus the beamlets to fabricate a hole 100 times smaller than the lens size.

A beam of ions is then directed at the substrate. When the wafer is tilted, the desired pattern is replicated simultaneously in billions of many closely spaced holes over an area, limited only by the size of the ion beam.

The nanostructures that you can form out of that focusing can be written simultaneously over the whole wafer in predetermined positions, Economou said. Without our technique, nanotech devices can be made with electron-beam writing or with a scanning tunneling microscope. However, the throughput, or fabrication speed, is extremely slow and is not suitable for mass production or for producing nanostructures of any desired shape and material.

With the right ions and gaseous elements, the nanotech fabrication method can be used to etch a variety of materials and virtually any shape with nanosize dimensions. A standard printing technique that can create lenses measuring 100 nanometers wide could be used to draw features just one nanometer wide if combined with nanopantography.

We expect nanopantography to become a viable method for rapid, large-scale fabrication, Donnelly said. Economou, Donnelly and Ruchhoeft have been working on the technology for four years and UH filed the patent application in December 2006.

They hope the technology can become commercially available in five to 10 years and expect it to become a viable method for large-scale production.


'/>"/>

Contact: Ann Holdsworth
aholdsworth@uh.edu
713-743-8153
University of Houston
Source:Eurekalert

Related biology technology :

1. A Simple and Rapid Technique to Purify High-Quality Midiprep DNA
2. Comparison of Growth Techniques and Media for the Purpose of Plasmid Isolation from E. coli Using the Eppendorf Perfectprep Plasmid Mini Kit
3. Temporal Temperature Gradient Electrophoresis: A Powerful Technique to Screen Mutations
4. Fundamentals of Fermentation: Techniques For Benchtop Fermentors
5. A technique for increasing yields in bioreactors and disposable cell-culture systems
6. New MailFoundry product fights latest spam techniques
7. WiCell, California firm agree to distribute stem cell lines derived with new technique
8. NimbleGen Systems CGS technique helps identify stomach bacteria
9. UW-Madison tries new techniques for nanotech
10. Researchers report major advance in gene therapy technique
11. Lucigen aims to fill holes in genetic maps with new technique
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:5/23/2017)... (PRWEB) , ... May 23, 2017 , ... ... machine manufacturers to re-engineer their control technology again and again. METTLER TOLEDO has ... for machine manufacturers. The videos illustrate how integration of the ACT350 into Siemens ...
(Date:5/21/2017)... CA (PRWEB) , ... May 19, 2017 , ... ... annual meeting and educational conference of the American Association of Bioanalysts (AAB) and ... Galleria Hotel in Houston. The conference reinforces AAB’s commitment to excellence in clinical ...
(Date:5/18/2017)... Malden, Mass. (PRWEB) , ... May 18, 2017 ... ... completed the procedure on April 28, 2017 at the Prince Of Wales Private ... degenerative cervical disc at level C6-C7. The patient failed conservative treatments prior to ...
(Date:5/18/2017)... ... May 17, 2017 , ... DAACRO ... scientific power by providing investigators access to a high-profile scientific advisory board. ... scientific advisory board. “We are committed to offering superior services and solutions ...
Breaking Biology Technology:
(Date:5/6/2017)... RAM Group , Singaporean based ... in biometric authentication based on a novel  ... to perform biometric authentication. These new sensors are based on ... Ram Group and its partners. This sensor will have ... and security. Ram Group is a next generation ...
(Date:4/13/2017)... , April 13, 2017 UBM,s Advanced ... will feature emerging and evolving technology through ... Innovation Summits will run alongside the expo portion of ... sessions, panels and demonstrations focused on trending topics within ... advanced design and manufacturing event will take place June ...
(Date:4/11/2017)... NXT-ID, Inc. (NASDAQ:   NXTD ) ("NXT-ID" or ... independent Directors Mr. Robin D. Richards and Mr. ... the company,s corporate governance and expertise. ... Gino Pereira , Chief Executive Officer said," ... and benefiting from their considerable expertise as we move forward ...
Breaking Biology News(10 mins):