128×128 3-5 μm focal plane arrays at 77 K and 200 K operation

The authors describe results obtained at LIR on photovoltaic detectors made on LPE layers and interconnected by metallic bumps to CCD Si circuit. 128×128 mosaics with 50 μm pitch detecting in the 3-5 μm wavelength range were tested at 77 K and 200 K operating temperature. The results indicate the high quality and homogeneity of the CMT epilayers and the maturity of the photovoltaic and hybrid technology for large size arrays., They also verify the feasibility of an operating temperature of 200 K for CMT arrays with a cut-off wavelength of 3.2 μm and characteristics similar to large size Schottky arrays