Technologies
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WARF: P04130US

Silicon-Based, Single Electron Transistor


INVENTORS -

Robert Blick, Dominik Scheible

The Wisconsin Alumni Research Foundation (WARF) is seeking commercial partners interested in developing a silicon-based, single electron transistor that consists of a source, drain and island.
OVERVIEWBecause today’s transistors transfer millions of electrons at a time, they generate a large amount of heat when packed together on semiconductor chips. As a result, chips can only contain a set number of conventional transistors. The use of a single electron transistor (SET) would overcome this limitation.
THE INVENTIONUW-Madison researchers have developed a silicon-based, single electron transistor that consists of a source, drain and island.  The SET’s island is composed of a pillar of material that can be biased from the source side, where it collects an electron, to the drain side, where it passes off the electron using the electron’s inherent resonant frequency.  It holds many benefits over currently envisioned SET devices, making it feasible for commercial applications such as switches and signal filters.
APPLICATIONS
  • May be incorporated into circuit elements, rectifiers, transistors and gas and radiation sensors
KEY BENEFITS
  • Works at room temperature, unlike many current technologies
  • Pillar has a fundamental lateral vibration mode with a resonant frequency in the range of 10 MHz to 1 GHz or potentially even greater.
  • Formed by conventional semiconductor manufacturing processes without using a sacrificial layer
  • Can be formed to have a very small footprint, allowing dense packing of these structures in an array
ADDITIONAL INFORMATION
Related Intellectual Property
Publications
  • Blick R.H. and Scheible D.V. 2004. Silicon Nano-Pillars for Mechanical Single Electron Tansport. Appl. Phys. Lett. 84, 4632-4634.
Contact Information
For current licensing status, please contact Jennifer Gottwald at jennifer@warf.org or 608-960-9854.
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Since its founding in 1925 as the patenting and licensing organization for the University of Wisconsin-Madison, WARF has been working with business and industry to transform university research into products that benefit society. WARF intellectual property managers and licensing staff members are leaders in the field of university-based technology transfer. They are familiar with the intricacies of patenting, have worked with researchers in relevant disciplines, understand industries and markets, and have negotiated innovative licensing strategies to meet the individual needs of business clients.