[go: up one dir, main page]

FR3103319B1 - THERMAL PATTERN SENSOR COMPRISING TWO LAYERS OF PYROELECTRIC MATERIALS - Google Patents

THERMAL PATTERN SENSOR COMPRISING TWO LAYERS OF PYROELECTRIC MATERIALS Download PDF

Info

Publication number
FR3103319B1
FR3103319B1 FR1912882A FR1912882A FR3103319B1 FR 3103319 B1 FR3103319 B1 FR 3103319B1 FR 1912882 A FR1912882 A FR 1912882A FR 1912882 A FR1912882 A FR 1912882A FR 3103319 B1 FR3103319 B1 FR 3103319B1
Authority
FR
France
Prior art keywords
electrically conductive
layers
pattern sensor
thermal pattern
pyroelectric material
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
FR1912882A
Other languages
French (fr)
Other versions
FR3103319A1 (en
Inventor
Mohammed Benwadih
David Alincant
Simon Charlot
Romain Coppard
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
Commissariat a lEnergie Atomique CEA
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Commissariat a lEnergie Atomique CEA, Commissariat a lEnergie Atomique et aux Energies Alternatives CEA filed Critical Commissariat a lEnergie Atomique CEA
Priority to FR1912882A priority Critical patent/FR3103319B1/en
Publication of FR3103319A1 publication Critical patent/FR3103319A1/en
Application granted granted Critical
Publication of FR3103319B1 publication Critical patent/FR3103319B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
    • G06V40/12—Fingerprints or palmprints
    • G06V40/13—Sensors therefor
    • G06V40/1306—Sensors therefor non-optical, e.g. ultrasonic or capacitive sensing

Landscapes

  • Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)

Abstract

Capteur (100) de motif thermique comportant une matrice de pixels (102), chaque pixel comprenant : - une première portion électriquement conductrice (106) disposée sur une face (105) d’un substrat (104) ; - une première portion de matériau pyroélectrique (108) telle que la première portion électriquement conductrice soit disposée entre la première portion de matériau pyroélectrique et le substrat ; - une deuxième portion électriquement conductrice (110) telle que la première portion de matériau pyroélectrique soit disposée entre les première et deuxième portions électriquement conductrices ; - une deuxième portion de matériau pyroélectrique (112) telle que la deuxième portion électriquement conductrice soit disposée entre les première et deuxième portions de matériau pyroélectrique ; - une troisième portion électriquement conductrice (114) telle que la deuxième portion de matériau pyroélectrique soit disposée entre les deuxième et troisième portions électriquement conductrices. Figure pour l’abrégé : figure 1.Thermal pattern sensor (100) comprising an array of pixels (102), each pixel comprising: - a first electrically conductive portion (106) disposed on a face (105) of a substrate (104); - a first portion of pyroelectric material (108) such that the first electrically conductive portion is disposed between the first portion of pyroelectric material and the substrate; - a second electrically conductive portion (110) such that the first portion of pyroelectric material is disposed between the first and second electrically conductive portions; - a second portion of pyroelectric material (112) such that the second electrically conductive portion is disposed between the first and second portions of pyroelectric material; - a third electrically conductive portion (114) such that the second portion of pyroelectric material is placed between the second and third electrically conductive portions. Figure for abstract: figure 1.

FR1912882A 2019-11-19 2019-11-19 THERMAL PATTERN SENSOR COMPRISING TWO LAYERS OF PYROELECTRIC MATERIALS Active FR3103319B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1912882A FR3103319B1 (en) 2019-11-19 2019-11-19 THERMAL PATTERN SENSOR COMPRISING TWO LAYERS OF PYROELECTRIC MATERIALS

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1912882 2019-11-19
FR1912882A FR3103319B1 (en) 2019-11-19 2019-11-19 THERMAL PATTERN SENSOR COMPRISING TWO LAYERS OF PYROELECTRIC MATERIALS

Publications (2)

Publication Number Publication Date
FR3103319A1 FR3103319A1 (en) 2021-05-21
FR3103319B1 true FR3103319B1 (en) 2022-04-01

Family

ID=69811047

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1912882A Active FR3103319B1 (en) 2019-11-19 2019-11-19 THERMAL PATTERN SENSOR COMPRISING TWO LAYERS OF PYROELECTRIC MATERIALS

Country Status (1)

Country Link
FR (1) FR3103319B1 (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4394773A (en) 1980-07-21 1983-07-19 Siemens Corporation Fingerprint sensor
US4429413A (en) 1981-07-30 1984-01-31 Siemens Corporation Fingerprint sensor
FR2749955B1 (en) 1996-06-14 1998-09-11 Thomson Csf FINGERPRINT READING SYSTEM
FR2959657B1 (en) 2010-05-06 2012-06-22 Commissariat Energie Atomique TIME TEMPERATURE VARIATION TRANSDUCER, ELECTRONIC CHIP INCORPORATING THE TRANSDUCER, AND METHOD OF MANUFACTURING THE SAME
FR3044409B1 (en) * 2015-11-30 2018-01-26 Commissariat A L'energie Atomique Et Aux Energies Alternatives THERMAL PATTERN SENSOR COMPRISING A HIGH PYROELECTRIC PORTION WITH HIGH THERMAL CONDUCTIVITY
FR3069354B1 (en) * 2017-07-24 2019-08-30 Commissariat A L'energie Atomique Et Aux Energies Alternatives THERMAL SENSOR WITH TWO OVERLAY PYROELECTRIC PORTIONS FOR MEASURING A DIFFERENTIAL LOAD

Also Published As

Publication number Publication date
FR3103319A1 (en) 2021-05-21

Similar Documents

Publication Publication Date Title
CA2175487C (en) Infrared radiation imaging array with compound sensors forming each pixel
CA2466682A1 (en) A matrix-addressable optoelectronic apparatus and electrode means in the same
CA1144387A (en) Capacitive pressure transducer
EP1166065B1 (en) Large area low mass ir pixel having tailored cross section
TW200508942A (en) A portable device and a touch sensitive display therefor
WO1999039372A3 (en) Image sensors made from organic semiconductors
NO982444D0 (en) Contact formation on semiconductor substrates for radiation detectors and imaging devices
FR2378412A1 (en) SEMICONDUCTOR IMAGE TRAINING DEVICE
EP0733930A3 (en) Electrical cell
CA2083871A1 (en) Electromagnetic Radiation Monitor
FR3103319B1 (en) THERMAL PATTERN SENSOR COMPRISING TWO LAYERS OF PYROELECTRIC MATERIALS
FR3069354B1 (en) THERMAL SENSOR WITH TWO OVERLAY PYROELECTRIC PORTIONS FOR MEASURING A DIFFERENTIAL LOAD
KR930018734A (en) Color filter manufacturing method
EP0340412A3 (en) Semiconductor light beam position sensor, and image input device using this sensor
GB2284298A (en) Ceramic deflection device
TW201843577A (en) Pressure sensor
FR2400262A1 (en) SOLID STATE MICROWAVE DEVICE AND METHODS FOR THEIR MANUFACTURE
FR3108756B1 (en) THERMAL PATTERN SENSOR
FR3093802B1 (en) THERMAL PATTERN SENSOR
FR3075953B1 (en) PYROELECTRIC SENSOR WITH IMPROVED ELECTRO-MAGNETIC SHIELDING.
JP3374179B2 (en) Sensor for measuring pressure distribution and frictional force distribution
JPH0495741A (en) pressure sensor
JPS54107264A (en) Semiconductor device
FR2366699A1 (en) Matrix element for high density integrated semiconductors - which is simpler and smaller and applicable as detector or memory element
FR3140991B1 (en) Optical filter for multispectral sensor

Legal Events

Date Code Title Description
PLFP Fee payment

Year of fee payment: 2

PLSC Publication of the preliminary search report

Effective date: 20210521

PLFP Fee payment

Year of fee payment: 3

PLFP Fee payment

Year of fee payment: 4

PLFP Fee payment

Year of fee payment: 5

PLFP Fee payment

Year of fee payment: 6

PLFP Fee payment

Year of fee payment: 7