The First Monolithic Silicon Carbide Active Pixel Sensor Array for Solar Blind UV Detection

Award Information
Agency:
National Aeronautics and Space Administration
Branch
n/a
Amount:
$124,707.00
Award Year:
2012
Program:
SBIR
Phase:
Phase I
Contract:
NNX12CE23P
Agency Tracking Number:
115295
Solicitation Year:
2011
Solicitation Topic Code:
S1.05
Solicitation Number:
n/a
Small Business Information
UNITED SILICON CARBIDE, INC.
NJ, Monmouth Junction, NJ, 08852-1921
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
042068101
Principal Investigator:
Leonid Fursin
Principal Investigator
(732) 355-0550
lfursin@unitedsic.com
Business Contact:
Scott Kelly
Business Official
(732) 355-0550
skelly@unitedsic.com
Research Institution:
Stub




Abstract
This Small Business Innovation Research Phase I project will address the needs of space astronomy, military threat detection, and scientific research for image sensors that are sensitive in the ultraviolet while insensitive in the visible spectrum. This is because solar illuminated backgrounds are orders of magnitude greater than the ultraviolet radiation of interest (solar blocking filters exhibit low UV transmission and scattered light). This program will develop monolithic imaging arrays made of 4H-Silicon Carbide, whose band gap is 3.25 eV versus 1.12 eV for silicon. This results in high UV sensitivity image sensor arrays with very low response in the visible/infrared along with negligible dark current without the need for cooling. Monolithic integration of each individual Schottky detector pixel with its own CMOS readout circuitry eliminates reliability concerns common to bump bonding of thin visible-blind semiconductor materials (GaN etc) with silicon readout integrated circuits (ROICs). In addition, Silicon Carbide is a more mature, defect free, material than Gallium Nitride. Finally, the wide band gap of 4H-SiC results in a higher level of radiation tolerance as compared to Silicon.

* information listed above is at the time of submission.

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