Patent ID: 9528879
Filing Date: 2016-12-27
CPC Classification: G01J,H01L

Claim Text:
1. An infrared detection element comprising a first pyroelectric element and a second pyroelectric element, the first pyroelectric element and the second pyroelectric element being arranged in a single pyroelectric substrate, the first pyroelectric element comprising: a first surface electrode provided on a surface of the single pyroelectric substrate; a first back face electrode provided on a back face of the single pyroelectric substrate; and a first portion interposed between the first surface electrode and the first back face electrode, the first portion being provided as part of the single pyroelectric substrate, the first back face electrode facing the first surface electrode through the first portion, the second pyroelectric element comprising: a second surface electrode provided on the surface of the single pyroelectric substrate; a second back face electrode provided on the back face of the single pyroelectric substrate; and a second portion interposed between the second surface electrode and the second back face electrode, the second portion being provided as part of the single pyroelectric substrate, the second back face electrode facing the second surface electrode through the second portion, the single pyroelectric substrate being provided on the surface thereof with a first surface wiring and a second surface wiring that are electrically connected with the first surface electrode and the second surface electrode, respectively, the single pyroelectric substrate being provided on the back face thereof with a first back face wiring and a second back face wiring that are electrically connected with the first back face electrode and the second back face electrode, respectively, the single pyroelectric substrate being provided in part thereof surrounding the first pyroelectric element with a slit that is shaped along an outer periphery of the first pyroelectric element, the slit being formed out of regions in which the first surface wiring and the first back face wiring are disposed, and part of the single pyroelectric substrate surrounding the second pyroelectric element being continuously formed over an entire circumference of the second portion.