Patent ID: 7145141
Filing Date: 2006-12-05
Classification: G01J

Abstract:
1. An infrared bolometer for sensing infrared heat, comprising: a lower substrate having an integrated circuit coated with a protection layer; an upper substrate having an absorbing layer being configured to absorb infrared rays and a resistor having a resistance value varied by the infrared heat absorbed by the absorbing layer, the upper substrate being spaced apart from the lower substrate by a predetermined distance; a post being configured to support mechanically the upper substrate and to connect the upper and lower substrates to each other; a signal bridge being arranged between the lower and upper substrates being configured to transmit a signal from the resistor of the upper substrate to the lower substrate; a lower electrode being formed on the top surface of the lower substrate to drive the signal bridge to connect and to disconnect electrically and mechanically to and from the upper substrate; and a reflecting layer being formed on the top surface of the lower substrate to increase absorptivity of infrared heat.