GaN on Diamond HEMT for Gate Thermal Management

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N65538-08-M-0136
Agency Tracking Number: N082-170-0516
Amount: $100,000.00
Phase: Phase I
Program: SBIR
Awards Year: 2008
Solicitation Year: 2008
Solicitation Topic Code: N08-170
Solicitation Number: 2008.2
Small Business Information
2305 Presidential Drive, Durham, NC, 27703
DUNS: 091129465
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Edwin Piner
 Director, Advanced Technology
 (919) 424-5167
Business Contact
 Edwin Piner
Title: Director, Advanced Technology
Phone: (919) 424-5167
Research Institution
GaN based HEMTs are capable of achieving high power density at high frequency. Thus, solid-state high power amplifiers based on GaN will be smaller and lighter than incumbent technologies. The use of a silicon substrate for GaN HEMTs provides a reliable GaN device which is also economical. Discrete devices and MMICs based on GaN on Si are ideally suited for applications in high power radar modules for electronically scanned arrays (ESAs). The performance and reliability of GaN HEMTs is closely linked to the operating temperature. For this program, we will further develop a novel GaN on diamond HEMT structure with superior thermal conductivity relative to conventional approaches. In addition to significantly improving the thermal resistance, we will develop a novel process pathway that will be inherently manufacturable and cost effective thus enabling the maximum utilization of GaN technology in various military applications. In Phase I, we will demonstrate key features of the material structure and thermal modeling of the concept device design. In Phase II, we will advance the maturity of the concept through optimization of the process and demonstrating a functional GaN on diamond HEMT device tailored for ESA to evaluate the thermal and electrical performance.

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

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