High Temperature III-V Nitride RF Electronics

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: N/A
Agency Tracking Number: 36221
Amount: $749,074.00
Phase: Phase II
Program: SBIR
Awards Year: 1998
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
7 Commerce Drive, Danbury, CT, 06810
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Joan M. Redwing
 (203) 794-1100
Business Contact
Phone: () -
Research Institution
The III-V nitrides, (Al, In, Ga)N, are promising materials for high temperature, high power and high frequency devices due to the wide bandgaps, high electron saturation velocity and high electronic mobility transistor (HEMT) structures available in this alloy system. These devices would find wide-spread commercial use as power amplifiers in base station transmitters for personal communications an din military phased-array radar systems. A1GaN / GaN HEMTs on sapphire subtrates with promising DC and microwave characteristics have recently been demonstrated but further work is needed to develop devices suitable for high temperatures. The goal of this program is to develop AlGaN / GaN HEMTs capable of sustained high power operation. SiC substrates will be employed to improve heat spreading in the device and thermally stable silicides will be developed for the gate contact metallurgy. In Phase I, we will fabricate silicide Schottky contacts to AlGaN test structures and determine the effect of AlGaN composition, doping and surface damage on the barrier height. This thermally stable contact technology will be incorporated into AlGaN / GaN HEMTs in Phase II leading to the production of robust, high performance RF power devices.

* Information listed above is at the time of submission. *

Agency Micro-sites

SBA logo
Department of Agriculture logo
Department of Commerce logo
Department of Defense logo
Department of Education logo
Department of Energy logo
Department of Health and Human Services logo
Department of Homeland Security logo
Department of Transportation logo
Environmental Protection Agency logo
National Aeronautics and Space Administration logo
National Science Foundation logo
US Flag An Official Website of the United States Government