Patent ID: 8304848
Filing Date: 2012-11-06
Classification: G01J,H04N

Abstract:
1. An infrared imaging device comprising: an SOI structure that is placed at a distance from a substrate, and includes: heat-sensitive diodes that detect infrared rays and convert the infrared rays into heat; and STI regions that separate the heat-sensitive diodes from one another; an interlayer insulating film that is stacked on the SOI structure; and supporting legs that are connected to the heat-sensitive diodes and vertical signal lines provided in outer peripheral regions of the heat-sensitive diodes, each of the supporting legs including: an interconnect unit that transmit signals to the vertical signal lines; first and second interlayer insulating layers that sandwich the interconnect unit, the first interlayer insulating layer being below the second interlayer insulating layer, each bottom side of the first and second interlayer insulating layers being located in a higher position than the SOI structure; a BOX film that is an oxide film and is placed below the first interlayer insulating layer; STI region that is placed between the first interlayer insulating layer and the BOX film; and a barrier film that is a nitride film and is placed between the first interlayer insulating layer and the STI region.