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1. WO2020108588 - METHODS AND STRUCTURES TO IMPROVE LIGHT COLLECTION EFFICIENCY IN BIOSENSORS

Publication Number WO/2020/108588
Publication Date 04.06.2020
International Application No. PCT/CN2019/121837
International Filing Date 29.11.2019
IPC
G01N 21/64 2006.01
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible or ultra-violet light
62Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
63optically excited
64Fluorescence; Phosphorescence
G01N 33/52 2006.01
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
33Investigating or analysing materials by specific methods not covered by groups G01N1/-G01N31/131
48Biological material, e.g. blood, urine; Haemocytometers
50Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
52Use of compounds or compositions for colorimetric, spectrophotometric or fluorometric investigation, e.g. use of reagent paper
G01N 21/76 2006.01
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible or ultra-violet light
75Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
76Chemiluminescence; Bioluminescence
CPC
G01N 21/64
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible or ultra-violet light
62Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
63optically excited
64Fluorescence; Phosphorescence
G01N 21/76
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible or ultra-violet light
75Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
76Chemiluminescence; Bioluminescence
G01N 33/52
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
33Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
48Biological material, e.g. blood, urine
50Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
52Use of compounds or compositions for colorimetric, spectrophotometric or fluorometric investigation, e.g. use of reagent paper ; and including single- and multilayer analytical elements
Applicants
  • MGI TECH CO., LTD. [CN]/[CN]
Inventors
  • LI, Shifeng
  • ZHONG, Cheng Frank
Agents
  • SYNCLAW ATTORNEYS
Priority Data
62/774,23901.12.2018US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) METHODS AND STRUCTURES TO IMPROVE LIGHT COLLECTION EFFICIENCY IN BIOSENSORS
(FR) PROCÉDÉS ET STRUCTURES POUR AMÉLIORER L'EFFICACITÉ DE COLLECTE DE LUMIÈRE DANS DES BIOCAPTEURS
Abstract
(EN)
A photodiode(112,200,400,500) includes a semiconductor substrate(210) having a first surface(211) and a second surface(212,412,512), and a light sensing junction(220) located adjacent to the first surface(211). The second surface(212,412, 512) is located opposite the first surface(211), and the second surface(212,412,512) includes a concave surface covering a recessed region(415,515) in the semiconductor substrate(210).
(FR)
L'invention concerne une photodiode (112, 200, 400, 500) comprenant un substrat semi-conducteur (210) comportant une première surface (211) et une seconde surface (212, 412, 512), et une jonction de détection de lumière (220) située adjacente à la première surface (211). La seconde surface (212, 412, 512) est située à l'opposé de la première surface (211), et la seconde surface (212, 412, 512) comprend une surface concave recouvrant une région évidée (415, 515) dans le substrat semi-conducteur (210).
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