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Patent Searching and Data


Title:
PHOTO SENSOR
Document Type and Number:
WIPO Patent Application WO/2017/094278
Kind Code:
A1
Abstract:
The present invention is configured such that a light-receiving element (21) has a plurality of conductive films (28, 30, 32), at least one of which, except for the lowermost layer, is a light-blocking film (32) which blocks light in a region other than a light receiving region S of a substrate (22), wherein the light-receiving element (21) satisfies the condition H+h≥a/tan(θ), in which H [μm] is the thickness of the light-blocking layer (32), h [μm] is the thickness from the bottom surface of the conductive film (28) on the lowermost layer to the bottom surface of the light-blocking film (32), a [μm] is the size of the light-receiving region, which is the maximum outer dimension of the light-receiving region S, and θ [deg] is the minimum angle formed between the normal line of the plane of the substrate (22) and the light which, among the light incident on the substrate (22) through an opening (32a) in the light-blocking film (32), is the light which, on a plane both perpendicular to the plane of the substrate (22) and oriented in a direction set by the size of the light-receiving region S, passes through the edge of the opening (32a) in the light-blocking film (32) to be incident into a region of the light-receiving region S.

Inventors:
TAKIMOTO TAKAHIRO
NATSUAKI KAZUHIRO
UCHIDA MASAYO
Application Number:
PCT/JP2016/068630
Publication Date:
June 08, 2017
Filing Date:
June 23, 2016
Export Citation:
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Assignee:
SHARP KK (JP)
International Classes:
G01J1/02; G01S7/481; G01V8/12; H01L31/107; H01L31/12
Domestic Patent References:
WO2014188756A12014-11-27
Foreign References:
JP2011049473A2011-03-10
JP2012142514A2012-07-26
JP2013012609A2013-01-17
JP2015192006A2015-11-02
US20140084134A12014-03-27
JPH10123234A1998-05-15
JP2012150022A2012-08-09
JP2013157372A2013-08-15
Attorney, Agent or Firm:
SAMEJIMA, Mutsumi et al. (JP)
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