Patent ID: 9476774
Filing Date: 2016-10-25
CPC Classification: G01J

Claim Text:
1. An uncooled microbolometer pixel for detection of electromagnetic radiation, the uncooled microbolometer pixel comprising: a substrate; a thermistor assembly comprising a thermistor platform suspended above the substrate in a spaced relationship therewith, at least one thermistor on the thermistor platform, and an electrode structure electrically connecting the at least one thermistor to the substrate; and an absorber assembly comprising: an absorber platform suspended above the thermistor platform in a spaced relationship therewith, the absorber platform overlying the at least one thermistor and the electrode structure; an optical absorber provided on the absorber platform, the optical absorber being in thermal contact with the at least one thermistor and exposed to the electromagnetic radiation, the optical absorber comprising a set of elongated resonators determining an absorption spectrum of the optical absorber; and a reflector extending on the thermistor platform over the at least one thermistor and the electrode structure, the reflector and the optical absorber together forming a resonant cavity and shielding the at least one thermistor and the electrode structure from the electromagnetic radiation.