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500?C SiC JFET Driver Circuits and Packaging

Award Information

National Aeronautics and Space Administration
Award ID:
Program Year/Program:
2005 / SBIR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
Solicitation Number:
Small Business Information
SemiSouth Laboratories
201 Research Blvd. Starkville, MS -
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Phase 1
Fiscal Year: 2005
Title: 500?C SiC JFET Driver Circuits and Packaging
Agency: NASA
Contract: NNC05CA84C
Award Amount: $69,978.00


In the proposed development, SiC JFET control circuitry and normally-off SiC JFET power switch will be integrated in a single SiC chip that will provide digital output for driving piezoelectric, electrostatic, or electromagnetic actuators. Innovative device design, metallurgical ohmic contact and die attach development, and coordinated packaging approaches will result in SiC power I.C. technology capable of sustained operation at 465?C, an industry first. This development will result in a unique lightweight, low-cost, packaged all-SiC Smart Power Module able to reliably operate in extremely high temperature, pressure, and radiation environments. Silicon carbide active components (vertical SemiSouth SiC power transistors) will be evaluated for 465C ambient operation. Improvements in the metallurgical ohmic contacts, die attach, wire bond, and package will be investigated to extend the reliable operating temperature range. Additionally, passive components such as thick film resistors, NPO and diamond capacitors, will be investigated as well. Finally, all of this information will be used to develop compact device and circuit models to propose a complete packaged commercial solution for 500C capable SiC based driver circuits.

Principal Investigator:

Jeffrey B. Casady

Business Contact:

Jeffrey B. Casady
President & CTO
Small Business Information at Submission:

SemiSouth Laboratories, Inc.
201 Research Blvd. Starkville, MS 39759

EIN/Tax ID: 010568116
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No