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High Operability HgCdTe Focal Plane Arrays on Si by Mitigation of Defects

Award Information

Department of Defense
Missile Defense Agency
Award ID:
Program Year/Program:
2011 / STTR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
Solicitation Number:
Small Business Information
Amethyst Research, Inc.
123 Case Circle Ardmore, OK 73401-0643
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Phase 1
Fiscal Year: 2011
Title: High Operability HgCdTe Focal Plane Arrays on Si by Mitigation of Defects
Agency / Branch: DOD / MDA
Contract: HQ0147-11-C-7673
Award Amount: $99,981.00


For HgCdTe infrared focal plane arrays fabricated on Si substrates, a model has recently been proposed to account for the disparity between the density of failed pixels and the density of dislocations that are present in the HgCdTe junction region. The model distinguishes between active and inactive dislocations and offers a hypothesis that dislocations are active only when they intersect particulates in the region near the Si wafer surface. We propose to test the validity of this hypothesis by separating the regions of high particulate density from regions of high dislocation density by depositing a homoepitaxial layer of Si. The particulates that lie at the surface of the Si wafer will not be able to interact with the dislocations that lie of the plane of the interface between Si layer and ZnTe buffer layer. We anticipate a low density of active dislocations in the HgCdTe and a low density of failed pixels in Si-based HgCdTe focal plane arrays. Operability values for these arrays should then meet systems"requirements.

Principal Investigator:

John Dinan
Senior Research Scientist
(703) 360-3872

Business Contact:

Todd Speaks
(580) 657-2575
Small Business Information at Submission:

Amethyst Research Incorporated
123 Case Circle Ardmore, OK -

EIN/Tax ID: 562472936
Number of Employees:
Woman-Owned: Yes
Minority-Owned: Yes
HUBZone-Owned: No
Research Institution Information:
Texas State University
601 University Drive
San Marcos, TX 78666-
Contact: Thomas Myers
Contact Phone: (512) 245-1839