Calculation of thermal parameters of SiGe microbolometers

Abstract

The thermal parameters of a SiGe microbolometer were calculated using numerical modeling. The calculated thermal conduction and thermal response time are in good agreement with the values found experimentally and range between 2x10${}^{-}7$ and 7x10${}^{-}8$ W/K and 1.5 and 4.5 ms, respectively. High sensitivity of microbolometer is achieved due to optimization of the thermal response time and thermal conduction by fitting the geometry of supporting heat-removing legs or by selection of a suitable material providing boundary thermal resistance higher than 8x10${}^{-}3$ cm${}^2$K/W at the SiGe interface.

11 pages, 6 figures

Cited by in corpus (1)

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