摘要： Silicon-germanium multi-quantum wells (MQWs) ?lm is a promising sensitive material with high temperature coe?cient of resistance (TCR). This paper focuses on solving the stress problem of uncooled infrared focal plane array caused by intrinsic stress of MQWs ?lms. First of all, the paper presents the accurate TCR model of MQWs, which is more consistent with the actual situation especially when the Fermi level enters the valence band. The energy bands distributions and each sub-band wavefunction of MQWs were calculated. The critical thickness analysis about epitaxial growth ?lm was carried out for solving intrinsic stress of MQWs ?lm, which leads to the deformation of pixel structure in the fabrication processes. The paper calculated the maximum ?lm stress in completely strain state and derived the buckling of the bolometer. Tri-layer structure was applied in support beam design for the deformation compensation. The self-doping MQWs ?lm was epitaxial growth on silicon substrate with bu?er layer to overcome the lattice slips in experiments. The bolometer was fabricated and released without visible deformation utilizing the compensation methods. The ohmic-contact problems and signals were also mentioned in the paper. The thermal conductivity and capacity were calculated by means of thermal response experiments without infrared radiation.