Patent ID: 6144285
Filing Date: 2000-11-07
Classification: G01J,H01L

Abstract:
A two-level microbridge infrared thermal detector apparatus comprising:a pixel on a semiconductor substrate, said pixel having a lower section on the surface of said substrate and an upper detector planar section spaced from and immediately above said lower section;said lower section including integrated circuit means;said upper detector planar section (a) comprising a temperature responsive detector of an oxide of vanadium characterized by having a high TCR and a resistivity in the range of 5K ohms to 300K ohms per square sheet resistance, and (b) being supported above said lower section by leg portions of an oxide of vanadium characterized by having a resitivity in the range of 250 to 1,000 ohms per square sheet resistance; andsaid leg portions (a) being electrically connected to said detector and said integrated circuit means, and (b) providing thermal isolation for said temperature responsive detector.