Patent ID: 6974953
Filing Date: 2005-12-13
Classification: G01J,H01L

Abstract:
1. An infrared sensor device comprising: a semiconductor substrate having a principal plane including a plurality of surface portions in each of which a hole is provided; a plurality of infrared detection pixels each disposed in one hole, each comprising, a semiconductor peripheral circuit disposed on the principal plane of the substrate and configured to read out the electric signals from the infrared detection pixels, the semiconductor peripheral circuit including at least a MOS transistor having a gate comprising a first electric conductor with U-shaped cross section along directions of a source and drain and a metal filled within the electric conductor; and a plurality of supporting beam lines, each extending across the infrared detection pixel and the surface portion having the hole, configured to support the infrared detection pixel afloat within the hole and configured to electrically connect the infrared detection pixels to the semiconductor peripheral circuit, each of the supporting beam lines including at least a second electric conductor with U-shaped cross section and formed in a same layer as the first electric conductor with U-shaped cross section of the gate of the MOS transistor.