Patent ID: 7276698

Claim:
A thermal-type infra-red ray solid-state image sensor including at least one device for detecting infra-red ray, said device comprising: a substrate including a signal-readout circuit; a contact electrode formed on said substrate and electrically connected to said signal-readout circuit; a diaphragm spaced away from and above said substrate, said diaphragm including an infra-red ray absorber absorbing infra-red ray to be heated, a temperature detector detecting a temperature of said infra-red ray absorber, and an electrode electrically connected to said temperature detector; a support supporting said diaphragm such that said diaphragm is spaced above said substrate, and being at least partially composed of electrically conductive material to electrically connect said contact electrode to said electrode; and a hood formed on said diaphragm for preventing infra-red ray from being radiated to said support, absorbing said infra-red ray, and transferring heat resulted from the thus absorbed infra-red ray, to said diaphragm, said hood being comprised of a sidewall standing on said diaphragm, and an upper plate extending outwardly of said sidewall from an upper edge of said sidewall, wherein said sidewall is comprised of a first sidewall and a second sidewall, the second sidewall extending inwardly and upwardly of said diaphragm to overlap said diaphragm.