Patent ID: 7928388
Filing Date: 2011-04-19
Classification: G01J

Abstract:
1. An infrared detection sensor, comprising: a substrate on which a metal pad and a reflection layer are formed; a sensor structure spaced a predetermined distance from the reflection layer and including a sensing layer having a resistance value which is varied according to a change in temperature, a lower protection layer formed below the sensing layer and an upper protection layer formed on the sensing layer; an anchor formed on the metal pad and having a predetermined thickness, the anchor including the sensing layer, a sensing electrode formed below the sensing layer to transmit a change in resistance of the sensing layer to the metal pad, the lower protection layer and the upper protection layer; and a supporting arm extending from the anchor to support the sensor structure, wherein the sensing layer formed on the sensing electrode and the upper protection layer are removed from the supporting arm region to form the supporting arm composed of the sensing electrode and the lower protection layer.