USA flag logo/image

An Official Website of the United States Government

Development of Radiation Hard 4H-SiC Power Switches and Rectifiers for Circuit…

Award Information

Department of Defense
Missile Defense Agency
Award ID:
Program Year/Program:
2005 / STTR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
Solicitation Number:
Small Business Information
SemiSouth Laboratories
201 Research Blvd. Starkville, MS -
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Phase 2
Fiscal Year: 2005
Title: Development of Radiation Hard 4H-SiC Power Switches and Rectifiers for Circuit Applications In Harsh Environments
Agency / Branch: DOD / MDA
Contract: W9113M-05-C-0204
Award Amount: $749,988.00


Several new high-power, long range radar systems are under development for near-term upgrades or fielding by MDA, Navy, and Marine Corps, which will use High Voltage GaAs or new WBG Semiconductors (SiC, GaN) in the transmitter/receiver. These systems will require compact, efficient, temperature tolerant power supplies and converters typically requiring a 600 V class of power devices. SiC is a logical candidate for such applications. However, reliable and affordable device technology is essential to realize the theoretical benefits of SiC in these critical applications. In order to determine if SiC is ready for insertion in these applications, this Phase II will fabricate devices using SemiSouth 4H-SiC VJFET and SBD technology designed to meet the current, voltage, high temperature, and radiation hardness required for MDA radar power supply applications. These parts will then be tested individually in high temperature and high radiation environments and then tested in a circuit of direct relevance to the applications above. The results of this work will provide a fact based timeline for insertion of SiC devices for power conditioning applications that will extend past the applications listed here into many other applications such as motor drives for more or all electric aircraft.

Principal Investigator:

Janna B. Casady
SiC Device Program Manager

Business Contact:

Brenda Temple
Contracts Administrator
Small Business Information at Submission:

Semisouth Laboratories
201 Research Blvd. Starkville, MS 39759

EIN/Tax ID: 010568116
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Research Institution Information:
310 Leach Scien
Auburn, AL 36849
Contact: John Williams
Contact Phone: (334) 844-4678
RI Type: Nonprofit college or university