Vertical SiC Static Induction Transistor for L-band

Award Information
Agency:
Department of Defense
Branch
Missile Defense Agency
Amount:
$750,000.00
Award Year:
2003
Program:
SBIR
Phase:
Phase II
Contract:
N0001402C0217
Award Id:
53129
Agency Tracking Number:
01-0254
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
One Research Blvd., Suite 201B, Starkville, MS, 39759
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
622392111
Principal Investigator:
Igor Sankin
Senior Device Engineer
(662) 324-7607
igor.sankin@semisouth.com
Business Contact:
Kelly Cutshall
Comptroller
(662) 324-7607
kelly.cutshall@semisouth.com
Research Institution:
n/a
Abstract
The Static Induction Transistor (SIT) is a vertical MESFET or JFET type device, which has the gates close together resulting in space charge limited current conduction. Unlike a bipolar junction transistor (BJT), the SIT is a majority carrier device, isvoltage-controlled, and often gives higher breakdown voltage and input impedance. While most SIT development has occurred in Si, renewed interest in the use of SiC SIT's over the past 10 years has occurred because of SiC's superior material properties. Byuse of SiC, it is possible to increase the voltage (and thus power) rating of high-frequency amplifiers, and increase the power density by a factor of 4 to 10 in UHF to S-band transistors.In this SBIR phase II project, a new SiC SIT for L-band power applications will be created. Submicron dimensions needed to get useful gain in L- and S-band will be obtained by use a self-aligned process, which employs the same mask for the source fingerdefinition, source contact, and formation of the gate.The proposed SiC SIT will incorporate a self-aligned process which will provide significant improvement in yield and device performance. L-band power applications will benefit from a SiC SIT because of the higher power density, higher operating voltage andhigher projected operating temperature of SiC devices. Potential commercial applications include radar systems and cellular base stations.

* information listed above is at the time of submission.

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