Authors: Smith, E.P.G.; Pham, L.T.; Venzor, G.M.; Norton, E.M.; Newton, M.D.; Goetz, P.M.; Randall, V.K.; Gallagher, A.M.; Pierce, G.K.; Patten, E.A.; Coussa, R.A.; Kosai, K.; Radford, W.A.; Giegerich, L.M.; Edwards, J.M.; Johnson, S.M.; Baur, S.T.; Roth, J.A.; Nosho, B.; De Lyon, T.J.; Jensen, J.E.; Longshore, R.E.

Source: Journal of Electronic Materials, Volume 33, Number 6, 1 June 2004 , pp. 509-516(8)

Publisher: Springer

Abstract:

Raytheon Vision Systems (RVS, Goleta, CA) in collaboration with HRL Laboratories (Malibu, CA) is contributing to the maturation and manufacturing readiness of third-generation, dual-color, HgCdTe infrared staring focal plane arrays (FPAs). This paper will highlight data from the routine growth and fabrication of 256 × 256 30- μm unit-cell staring FPAs that provide dual-color detection in the mid-wavelength infrared (MWIR) and long wavelength infrared (LWIR) spectral regions. The FPAs configured for MWIR/MWIR, MWIR/LWIR, and LWIR/LWIR detection are used for target identification, signature recognition, and clutter rejection in a wide variety of space and ground-based applications. Optimized triple-layer heterojunction (TLHJ) device designs and molecular beam epitaxy (MBE) growth using in-situ controls has contributed to individual bands in all dual-color FPA configurations exhibiting high operability (>99%) and both performance and FPA functionality comparable to state-of-the-art, single-color technology. The measured spectral cross talk from out-of-band radiation for either band is also typically less than 10%. An FPA architecture based on a single-mesa, single-indium bump, and sequential-mode operation leverages current single-color processes in production while also providing compatibility with existing second-generation technologies.

Keywords: DUAL-COLOR; FOCAL PLANE ARRAY (FPA); MID-WAVELENGTH INFRARED (MWIR); LONG-WAVELENGTH INFRARED (LWIR); MOLECULAR BEAM EPITAXY (MBE)

Document Type: Research article

Publication date: 2004-06-01

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• In this Subject: Materials & Manufacturing
• By this author: Smith, E.P.G. ;  Pham, L.T. ;  Venzor, G.M. ;  Norton, E.M. ;  Newton, M.D. ;  Goetz, P.M. ;  Randall, V.K. ;  Gallagher, A.M. ;  Pierce, G.K. ;  Patten, E.A. ;  Coussa, R.A. ;  Kosai, K. ;  Radford, W.A. ;  Giegerich, L.M. ;  Edwards, J.M. ;  Johnson, S.M. ;  Baur, S.T. ;  Roth, J.A. ;  Nosho, B. ;  De Lyon, T.J. ;  Jensen, J.E. ;  Longshore, R.E.

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