Patent ID: 7193211
Filing Date: 2007-03-20
Classification: H01L

Abstract:
1. A thermal type infrared ray imaging device, comprising: a plurality of cells arranged on a substrate each having a photothermal conversion part which converts an infrared ray into heat, and a thermoelectric conversion part which is provided below said photothermal conversion part and which converts the heat generated by said photothermal conversion part into an electric signal; a selection part which selects some cells among said plurality of cells; and an output part which outputs the electric signal generated by said thermoelectric conversion part of each of the selected cells, wherein said photothermal conversion part includes: a first photothermal conversion layer; and a second photothermal conversion layer provided over and apart from said first photothermal conversion layer, which converts an infrared ray within a waveband different from a waveband of said first photothermal conversion layer into heat, wherein said thermoelectric conversion part includes: a first thermoelectric conversion part which converts the heat generated by said first photothermal conversion layer into the electric signal; and a second thermoelectric conversion part which is thermally separated from said first thermoelectric conversion part at the same height as that of said first thermoelectric conversion part, and which converts the heat generated by said second photothermal conversion layer into the electric signal.