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Patent Searching and Data


Title:
OPTICAL SENSOR
Document Type and Number:
WIPO Patent Application WO/2020/213569
Kind Code:
A1
Abstract:
This optical sensor comprises: a support layer; a thermoelectric conversion material part including a band-shaped first material layer for converting thermal energy to electrical energy and a band-shaped electroconductive second material layer, the thermoelectric conversion material part being disposed on the support layer; and a light-absorbing film disposed on the thermoelectric conversion material part so that a difference in temperature is formed along the longitudinal direction of the first material layer. The first material layer includes a first region and a second region. The second material layer includes a third region and a fourth region that is connected to the second region. The optical sensor furthermore comprises a first electrode electrically connected to the first region, and a second electrode that is disposed apart from the first electrode and is electrically connected to the third region. The width of the first material layer perpendicular to the longitudinal direction is 0.1 μm or greater. The first material layer includes a thick-walled part positioned so as to include the width-direction center of a cross-section perpendicular to the longitudinal direction, and thin-walled parts that are disposed on both sides of the thick-walled part and are less thick than the thick-walled part. The thickness of the thick-walled part is 10 nm or greater. The width of the thin-walled parts is 15% or more in total.

Inventors:
HIROSE KOTARO (JP)
ADACHI MASAHIRO (JP)
YAMAMOTO YOSHIYUKI (JP)
Application Number:
PCT/JP2020/016303
Publication Date:
October 22, 2020
Filing Date:
April 13, 2020
Export Citation:
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Assignee:
SUMITOMO ELECTRIC INDUSTRIES (JP)
International Classes:
G01J1/02; H01L35/14; H01L35/32; H01L37/00
Domestic Patent References:
WO2017086271A12017-05-26
Foreign References:
JPH03276772A1991-12-06
JP2000340848A2000-12-08
Attorney, Agent or Firm:
KITANO, Shuhei et al. (JP)
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