Patents by Inventor Agnès Arnaud
Agnès Arnaud has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 10060797Abstract: A device for detecting electromagnetic radiation, including a readout circuit, which is located in a substrate, and an electrical connection pad, which is placed on the substrate, including a metal section that is raised above the substrate and electrically connected to the readout circuit. The detection device furthermore includes a protection wall that extends under the raised metal section so as to define therewith at least one portion of a cavity, and what is called a reinforcing layer section that is located in the cavity and on which the raised metal section rests.Type: GrantFiled: February 24, 2017Date of Patent: August 28, 2018Assignees: Commissariat A L'Energie Atomique et aux Energies Alternatives, ULISInventors: Stephane Pocas, Agnes Arnaud, Sebastien Cortial, Jean-Jacques Yon
-
Publication number: 20170241840Abstract: A device for detecting electromagnetic radiation, including a readout circuit, which is located in a substrate, and an electrical connection pad, which is placed on the substrate, including a metal section that is raised above the substrate and electrically connected to the readout circuit. The detection device furthermore includes a protection wall that extends under the raised metal section so as to define therewith at least one portion of a cavity, and what is called a reinforcing layer section that is located in the cavity and on which the raised metal section rests.Type: ApplicationFiled: February 24, 2017Publication date: August 24, 2017Applicants: Commissariat a l'energie atomique et aux energies alternatives, ULISInventors: Stephane POCAS, Agnes ARNAUD, Sebastien CORTIAL, Jean-Jacques YON
-
Patent number: 9482581Abstract: A bolometric detector includes a substrate; bolometric detection microbridges suspended above the substrate and thermally insulated from the substrate; bolometric compensation microbridges suspended above the substrate and thermalized to the substrate; and a read circuit formed in the substrate to apply a biasing to the detection microbridges and to the compensation microbridges and to form differences between signals generated by detection microbridges and signals generated by compensation microbridges under the effect of the applied biasing. Each detection microbridge and each compensation microbridge includes electrically-conductive anchoring nails connected to the read circuit, a membrane attached to the anchoring nails above the substrate, and a thermometric element arranged in the membrane. The detector further includes thermal short-circuit elements between the membrane of each compensation microbridge and the substrate.Type: GrantFiled: August 15, 2014Date of Patent: November 1, 2016Assignee: Commissariat a l'Energie Atomique et aux Energies AlternativesInventors: Pierre Imperinetti, Agnès Arnaud, Emmanuel Rolland
-
Patent number: 9376346Abstract: The invention relates to the use of a material having a spinel ferrite/iron monoxide structure as a sensitive material in the form of a thin film for the bolometric detection of infrared radiation, the chemical composition of said structure, excluding doping agents that may be present, having empirical formula (I): (Fe1?zMz)xO, where x is strictly less than 1 and strictly greater than 0.75. The invention also relates to a bolometric device for infrared radiation detection and infrared imaging, comprising at least one sensor provided with a sensitive element in the form of a thin film as defined above.Type: GrantFiled: June 11, 2009Date of Patent: June 28, 2016Assignees: COMMISSARIAT A L'ENERGIE ATOMIQUE, UNIVERSITE PAUL SABATIER (TOULOUSE III), CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUEInventors: Philippe Tailhades, Lionel Presmanes, Corinne Bonningue, Bruno Mauvernay, Jean-Louis Ouvrier-Buffet, Agnes Arnaud, Wilfried Rabaud
-
Publication number: 20150053858Abstract: A bolometric detector includes a substrate; bolometric detection microbridges suspended above the substrate and thermally insulated from the substrate; bolometric compensation microbridges suspended above the substrate and thermalized to the substrate; and a read circuit formed in the substrate to apply a biasing to the detection microbridges and to the compensation microbridges and to form differences between signals generated by detection microbridges and signals generated by compensation microbridges under the effect of the applied biasing. Each detection microbridge and each compensation microbridge includes electrically-conductive anchoring nails connected to the read circuit, a membrane attached to the anchoring nails above the substrate, and a thermometric element arranged in the membrane. The detector further includes thermal short-circuit elements between the membrane of each compensation microbridge and the substrate.Type: ApplicationFiled: August 15, 2014Publication date: February 26, 2015Inventors: Pierre Imperinetti, Agnès Arnaud, Emmanuel Rolland
-
Patent number: 8895924Abstract: This bolometric array detector for detecting electromagnetic radiation in a predetermined range of infrared or terahertz wavelengths comprises a substrate and an array of bolometric micro-plates for detecting said radiation that are suspended above the substrate by support arms. It comprises a metallic membrane located above and around each micro-plate and in which openings are formed; said openings in metallic membrane are periodically located in it along at least one predetermined axis with a period equal to or less than ? n , where ? is a wavelength in the wavelength range that is to be detected and n is the average refraction index of the medium that separates the micro-plate from metallic membrane.Type: GrantFiled: November 15, 2011Date of Patent: November 25, 2014Assignee: Commissariat a l'Energie Atomique et aux Energies AlternativesInventors: Geoffroy Dumont, Agnès Arnaud, Salim Boutami, Pierre Imperinetti, Alexandre Mary, Stéphane Pocas, Wilfried Rabaud
-
Patent number: 8816282Abstract: A multispectral sensor which includes a complementary metal oxide semiconductor substrate having a switching circuit, at least one antenna-receiving combination device for detecting terahertz radiation, at least one additional bolometer for detecting mid-range infrared radiation, and at least one diode for detecting radiation in the visible to near-infrared range. A multispectral imaging and/or spectroscopy system, a method for detecting and/or examining life forms, objects, and materials using such a system, and the use of such a sensor and system are also described.Type: GrantFiled: May 29, 2009Date of Patent: August 26, 2014Assignees: Robert Bosch GmbH, CEA Commissariat a l'Energie Atomique et aux Energies AlternativesInventors: Michael Thiel, Ulrich Kallmann, Stefan Kundermann, Eric Mottin, Agnes Arnaud
-
Patent number: 8598528Abstract: A bolometric array detector for detecting electromagnetic radiation in a predetermined range of infrared wavelengths includes a substrate; an array of bolometric micro-plates for detecting the radiation suspended above the substrate by support arms; and metallic reflectors formed on the substrate underneath the micro-plates to reflect that portion of the radiation which has passed through said micro-plates without being absorbed by the latter. For each micro-plate, a corresponding reflector includes a first part located underneath the micro-plate which extends as a second part not positioned underneath the micro-plate. At least the second part has surface texturing in a repeating pattern for coupling a portion of incident radiation on the second part to a guided wave that propagates towards the first part of the reflector positioned underneath micro-plate.Type: GrantFiled: September 21, 2011Date of Patent: December 3, 2013Assignee: Commissariat a l'Energie Atomique et aux Energies AlternativesInventors: Salim Boutami, Agnès Arnaud, Geoffroy Dumont, Pierre Imperinetti, Alexandre Mary, Stéphane Pocas, Wilfried Rabaud
-
Publication number: 20120153151Abstract: This bolometric array detector for detecting electromagnetic radiation in a predetermined range of infrared or terahertz wavelengths comprises a substrate and an array of bolometric micro-plates for detecting said radiation that are suspended above the substrate by support arms. It comprises a metallic membrane located above and around each micro-plate and in which openings are formed; said openings in metallic membrane are periodically located in it along at least one predetermined axis with a period equal to or less than ? n , where ? is a wavelength in the wavelength range that is to be detected and n is the average refraction index of the medium that separates the micro-plate from metallic membrane.Type: ApplicationFiled: November 15, 2011Publication date: June 21, 2012Applicant: Commissariat A L'Energie Atomique Et Aux Energie AlternativesInventors: Geoffroy DUMONT, Agnès ARNAUD, Salim BOUTAMI, Pierre IMPERINETTI, Alexandre MARY, Stéphane POCAS, Wilfried RABAUD
-
Publication number: 20120120622Abstract: An airtight assembly of two components including a first component with a support having at its surface: at least one spacer composed of a ductile material, arranged at the periphery of the component, and at least one bead composed of a ductile material; a second component with a support having at its surface: at least one insert inserted over the whole or part of its surface in the spacer on the first component, and at least one bead insert inserted over all or part of the surface thereof in the bead on the first component, defining an airtight central cavity.Type: ApplicationFiled: July 23, 2010Publication date: May 17, 2012Applicant: Commissariat L'Energie Atomique Et Aux Energies AlternativesInventors: François Marion, Agnés Arnaud, Geoffroy Dumont, Pierre Imperinetti
-
Publication number: 20120104258Abstract: A bolometric array detector for detecting electromagnetic radiation in a predetermined range of infrared wavelengths includes a substrate; an array of bolometric micro-plates for detecting the radiation suspended above the substrate by support arms; and metallic reflectors formed on the substrate underneath the micro-plates to reflect that portion of the radiation which has passed through said micro-plates without being absorbed by the latter. For each micro-plate, a corresponding reflector includes a first part located underneath the micro-plate which extends as a second part not positioned underneath the micro-plate. At least the second part has surface texturing in a repeating pattern for coupling a portion of incident radiation on the second part to a guided wave that propagates towards the first part of the reflector positioned underneath micro-plate.Type: ApplicationFiled: September 21, 2011Publication date: May 3, 2012Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventors: Salim BOUTAMI, Agnès ARNAUD, Geoffroy DUMONT, Pierre IMPERINETTI, Alexandre MARY, Stéphane POCAS, Wilfried RABAUD
-
Publication number: 20110057107Abstract: A bolometric detector for detecting electromagnetic radiation comprising a receiving antenna intended for collecting electromagnetic radiation and thus ensuring electromagnetic coupling; a resistive load capacitively coupled to antenna and capable of converting the electromagnetic power collected into calorific power; and a thermometric element connected to resistive load and thermally isolated from a substrate that is capable of accommodating an electronic circuit that includes means of electrical excitation (stimulus) and pre-processing the electrical signals generated by said detector. The resistive load is suspended above receiving antenna by means of a single thermometric element which is itself electrically and mechanically linked to the substrate.Type: ApplicationFiled: November 8, 2010Publication date: March 10, 2011Applicant: Commissariat A L'Energie Atomique Et Aux Energies AlternativesInventors: Patrick AGNESE, Agnès Arnaud
-
Patent number: 7842556Abstract: This method for sealing a cavity of a component placed in the chamber is carried out by physical vapour deposition (PVD) of germanium or silicon.Type: GrantFiled: July 11, 2008Date of Patent: November 30, 2010Assignee: Commissariat a l'Energie AtomiqueInventors: Bernard Andre, Agnès Arnaud
-
Publication number: 20100065743Abstract: The invention relates to the use of a material having a spinel ferrite/iron monoxide structure as a sensitive material in the form of a thin film for the bolometric detection of infrared radiation, the chemical composition of said structure, excluding doping agents that may be present, having empirical formula (I): (Fe1?zMz)xO, where x is strictly less than 1 and strictly greater than 0.75. The invention also relates to a bolometric device for infrared radiation detection and infrared imaging, comprising at least one sensor provided with a sensitive element in the form of a thin film as defined above.Type: ApplicationFiled: June 11, 2009Publication date: March 18, 2010Applicants: COMMISSARIAT A L'ENERGIE ATOMIQUE, UNIVERSITE PAUL SABATIER TOULOUSE III, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUEInventors: Philippe TAILHADES, Lionel PRESMANES, Corinne BONNINGUE, Bruno MAUVERNAY, Jean-Louis OUVRIER-BUFFET, Agnes ARNAUD, Wilfried RABAUD
-
Patent number: 7544942Abstract: A thermal detector comprising a sensitive material having at least one electrical property of which varies with temperature; an electromagnetic radiation absorber which is in contact with the sensitive material; a substrate providing the function of support; and electrically conductive elements providing electrical continuity between sensitive material and substrate. The sensitive material is wholly or partly in the form of a sheet extending in a direction which is essentially perpendicular to the plane of the substrate. The sensitive material is suspended above the substrate by the absorber which is fixed to the sensitive material in the upper region of the sheet. The absorber is suspended by fixing means which is mechanically connected to the substrate.Type: GrantFiled: October 24, 2007Date of Patent: June 9, 2009Assignee: Commissariat a l'Energie AtomiqueInventors: Jean-Louis Ouvrier-Buffet, Agnès Arnaud, Sylvette Bisotto, André Perez
-
Patent number: 7459901Abstract: The voltage presence indication device comprises a collector electrode (2) designed to have at least one capacitive connection (5) with an electrical ground (6) or a capacitive connection (3) with an electrical conductor (4) to be monitored, and display means (7) connected to said collector electrode (2) to indicate the presence of an electrical voltage in said electrical conductor to be monitored. The display means comprise at least one multilayer device (11). The multilayer device comprises a light-emitting layer (12) arranged between a first insulating layer (13) and a second insulating layer (14), a first conducting layer (15) arranged on the first insulating layer (13) and connected to said conducting electrode (2), and a second conducting layer (16) arranged on the second insulating layer (14). An electrical apparatus comprises such a device.Type: GrantFiled: September 4, 2002Date of Patent: December 2, 2008Assignee: Schneider Electric Industries SASInventors: Michel Barrault, Vincent Minier, Agnès Arnaud
-
Publication number: 20080265164Abstract: A thermal detector comprising a sensitive material having at least one electrical property of which varies with temperature; an electromagnetic radiation absorber which is in contact with the sensitive material; a substrate providing the function of support; and electrically conductive elements providing electrical continuity between sensitive material and substrate. The sensitive material is wholly or partly in the form of a sheet extending in a direction which is essentially perpendicular to the plane of the substrate. The sensitive material is suspended above the substrate by the absorber which is fixed to the sensitive material in the upper region of the sheet. The absorber is suspended by fixing means which is mechanically connected to the substrate.Type: ApplicationFiled: October 24, 2007Publication date: October 30, 2008Applicant: Commissariat A L'Energie AtomiqueInventors: Jean-Louis OUVRIER-BUFFET, Sylvette BISOTTO, Agnes ARNAUD, Andre PEREZ
-
Publication number: 20080268580Abstract: This method for sealing a cavity of a component placed in the chamber is carried out by physical vapour deposition (PVD) of germanium or silicon.Type: ApplicationFiled: July 11, 2008Publication date: October 30, 2008Applicant: Commissariat A L'Energie AtomiqueInventors: Bernard ANDRE, Agnes Arnaud