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Planar Engineering for Type-II Superlattices (PETS

Award Information

Department of Defense
Award ID:
Program Year/Program:
2009 / SBIR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
Army 09-080
Solicitation Number:
Small Business Information
MP Technologies, LLC
1500 Sheridan RD, SUITE 8A Wilmette, IL -
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Phase 1
Fiscal Year: 2009
Title: Planar Engineering for Type-II Superlattices (PETS
Agency / Branch: DOD / ARMY
Contract: W15P7T-10-C-S205
Award Amount: $69,866.00


Type II InAs/GaSb strained layer superlattices (SLS) represent the most promising material system capable of delivering more producible, large-format MWIR and LWIR focal plane arrays (FPAs). Type-II SLS currently achieve performance comparable to that of existing mercury-cadmium-telluride (MCT) based FPAs. However, no viable planar processing techniques have been demonstrated for Type-II -V they currently rely on mesa isolated diodes. These mesas require etching, cleaning, and passivation, which complicate the processing of Type-II SLS and can decrease the yield and reliability. As such it is desirable to pursue a planar processing technique that is compatible with Type-II superlattices. In this proposal we present a novel planar design compatible with Type-II design called Planar Engineering for Type-II Superlatices (PETS). PETS consists of a reduced area p-type GaSb layer that is fabricated via selective area re-growth in a trench in a Y_-type (lightly n-type) absorbing layer. This eliminates the need to passivate the devices and simplifies the processing, and thus can be expected to increase the yield and reliability leading to a more producible FPA. In addition PETS allows for a reduced junction area while maintaining the optical area of the device. This will reduce the dark current and lead to higher signal to noise ratios.

Principal Investigator:

Ryan McClintock
Technical Director

Business Contact:

Manijeh Razeghi
Small Business Information at Submission:

1801 Maple Avenue Evanston, IL 60201

EIN/Tax ID: 364280738
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No