Passivation Innovations for Large Format Reduced Pixel pitch strained layer superlattice Focal Plane Array Imagers Operating in the Long

Award Information
Agency: Department of Defense
Branch: Army
Contract: W909MY-10-C-0029
Agency Tracking Number: A2-3900
Amount: $779,970.00
Phase: Phase II
Program: SBIR
Awards Year: 2010
Solitcitation Year: 2008
Solitcitation Topic Code: A08-103
Solitcitation Number: 2008.2
Small Business Information
EPIR Technologies Inc
590 Territorial Drive, Suite B, Bolingbrook, IL, -
Duns: 068568588
Hubzone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Siddhartha Ghosh
 Senior Engineer
 (630) 771-0203
 sghosh@epir.com
Business Contact
 Sivalingam Sivananthan
Title: President&CEO
Phone: (630) 771-0203
Email: ssivananthan@epir.com
Research Institution
N/A
Abstract
The proposed Phase II effort will focus on the fabrication and testing of high performance 640x512 long wavelength infrared (LWIR) type-II strained layer superlattice detector arrays. The effort will start with the modeling of devices and arrays, followed by improving the understanding of bulk defects to enhance carrier lifetimes. Passivation studies will continue based on the Phase I foundation, with an emphasis on stacked passivation layers with enhanced robustness. Molecular beam epitaxial growth and fabrication of nBn structures with low dark currents and high operating temperatures will be undertaken. The dry etching of small features appropriate for short pixel pitches (15 µm) will be carried out to study etch uniformity and surface morphologies, which will be of great benefit to the realization of high performance, large format arrays. The fabricated arrays will hybridized to read out integrated circuits suitable for 15 µm pixel pitches and LWIR detectors. The focal plane arrays will be tested and characterized in-house and by our collaborator L3-Com.

* information listed above is at the time of submission.

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