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Confinement of Threading Dislocations at the CdTe/Si Interface for Improved…

Award Information

Agency:
Department of Defense
Branch:
Army
Award ID:
78103
Program Year/Program:
2006 / STTR
Agency Tracking Number:
A064-021-0281
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
WIZDOM SYSTEMS, INC.
1300 Iroquois Avenue Suite 140 Naperville, IL 60563-0563
View profile »
Woman-Owned: Yes
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 2006
Title: Confinement of Threading Dislocations at the CdTe/Si Interface for Improved HgCdTe IR Sensors
Agency / Branch: DOD / ARMY
Contract: W911NF-06-C-0107
Award Amount: $99,960.00
 

Abstract:

Stringent requirements on the performance of third generation HgCdTe infrared detectors demand the availability of affordable high quality substrates with very large areas. The large areas are needed both for the fabrication of single very large focal plane arrays (FPAs) (2048x2048) and to increase the yield of smaller size FBAs per wafer. The quality of commercial CdTe/Si technology, the best large-area composite substrate available for the epitaxial growth HgCdTe, has reached a plateau such that significant improvements using current growth techniques are doubtful. However, the growth of CdTe on Si/Si (and potentially on Ge/Si) twist-bonded substrates (TBS) promises to transform this technology to markedly higher quality levels. We propose the epitaxial growth of CdTe on Si/Si substrates by Molecular Beam Epitaxy (MBE) as a promising method to prepare CdTe layers. Such layers will have significantly reduced threading dislocation density at the CdTe surface than what is available today. The CdTe/Si substrates will then be used as composite substrates for the growth of large area HgCdTe epilayers. We further propose to identify the requirements and design a high vacuum wafer bonding system for the fabrication of Si/Si and Ge/Si twist bonding structures.

Principal Investigator:

Hisham Abad
6303573000
habad@wizdom.com

Business Contact:

Dennis Wisnosky
CEO
6303573000
dwiz@wizdom.com
Small Business Information at Submission:

WIZDOM SYSTEMS, INC.
1300 Iroquois Avenue Naperville, IL 60563

EIN/Tax ID: 364003305
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Research Institution Information:
UNIV. OF ILLINOIS AT CHICAGO
Department of Physics
Chicago, IL 60607
Contact: Inder P. Batra
Contact Phone: (312) 413-2789
RI Type: Nonprofit college or university