Multilayer heterostructures were grown in "Svetlana-Rost" JSC using STE3235 MBE system in AlGaAs compound for infrared photodetectors in a range of 8-10 microns (Quantum Well Infrared Photodetector - QWIP). Infrared PD matrix based on QWIP heterostructures due to the high homogeneity of its properties demonstrated thermal image without additional signal processing at 70 K.