Patent ID: 7851903

Claim:
An infrared detector, comprising: first and second container members bonded to each other along an annular bonding portion to define a vacuum-sealed inner space, the second container member having an infrared-transmissive property; an infrared detecting element disposed in the inner space; a first annular metallization layer formed on the bonding portion of the first container member; a second annular metallization layer formed on the bonding portion of the second container member; a third metallization layer formed in a vicinity of one of the first and second metallization layers such that only a part of the third metallization layer overlaps only a part of second metallization layer; and a solder metal placed on the third metallization layer extending from the third metallization layer so as to connect the first and second metallization layers to each other, and thereby forming an air-tight bond between the first metallization layer and the second metallization layer.