Patents by Inventor Laurent Brunet
Laurent Brunet 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).
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Patent number: 11024544Abstract: Fabrication of a circuit with superposed transistors includes assembly of a structure having transistors formed from a first semiconducting layer with a support provided with a second semiconducting layer in which transistors are provided on a higher level. The second semiconducting layer is coated with a thin layer of silicon oxide. The assembly of said structure and the support is made by direct bonding in which the thin silicon oxide layer is bonded to oxidised portions of getter material.Type: GrantFiled: December 17, 2018Date of Patent: June 1, 2021Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventors: Francois Andrieu, Lamine Benaissa, Laurent Brunet
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Patent number: 10497627Abstract: A method is provided for forming a transistor from a stack including the following successive layers: an electrically insulating layer, an active zone including at least one semiconductor layer, and a gate, sides of which are configured to be covered by at least one spacer, the method including: a phase of forming lateral cavities; and forming a raised drain and a raised source that fill the lateral cavities by growing the semiconductor layer via epitaxy, the forming of the lateral cavities includes, after a step of partially removing the semiconductor layer: forming a sacrificial layer, partially removing the sacrificial layer; forming spacers against the sides of the gate resting on a residual sacrificial layer; and totally removing the residual sacrificial layer in order to form the lateral cavities.Type: GrantFiled: February 1, 2017Date of Patent: December 3, 2019Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventors: Nicolas Posseme, Laurent Brunet, Perrine Batude
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Patent number: 10490451Abstract: A process for fabricating a transistor structure produced sequentially, comprises at least one string of the following steps: producing at least one first transistor from a first semiconductor layer possibly made of silicon; encapsulating at least the first transistor with at least one first dielectric layer defining a first assembly; bonding a second dielectric layer located on the surface of a second semiconductor layer possibly made of silicon, to the first dielectric layer; depositing a planarizing material layer on the surface of the second semiconductor layer; selectively etching the planarizing material layer, to the second semiconductor layer; and producing at least one second transistor from the second semiconductor layer.Type: GrantFiled: June 16, 2017Date of Patent: November 26, 2019Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventors: Laurent Brunet, Nicolas Posseme
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Publication number: 20190198397Abstract: Fabrication of a circuit with superposed transistors, comprising assembly of a structure comprising transistors formed from a first semiconducting layer with a support (100) provided with a second semiconducting layer (102) in which transistors are provided on a higher level (N2), the second semiconducting layer (102) being coated with a thin layer (101) of silicon oxide, the assembly of said structure and the support (100) being made by direct bonding in which the thin silicon oxide layer (101) is bonded to oxidised portions (37b, 37c) of getter material.Type: ApplicationFiled: December 17, 2018Publication date: June 27, 2019Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventors: Francois ANDRIEU, Lamine Benaissa, Laurent Brunet
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Patent number: 10319628Abstract: A method of fabrication of an integrated circuit is provided, including: providing a substrate including a first active layer and a first metallic level of interconnection arranged on top of the active layer and including first lines of interconnection separated by a first filling of sacrificial material; forming a superposition of an insulator layer and second lines of interconnection; providing access to the first filling through the insulator layer; filling the provided access with a second filling of sacrificial material; forming a second active layer on top of the second metallic level of interconnection; providing access to the second filling through the second active layer; and removing the first and the second fillings by a chemical etching through the provided access to the second filling.Type: GrantFiled: September 26, 2017Date of Patent: June 11, 2019Assignee: Commissariat a l'energie atomique et aux energies alternativesInventors: Fabien Deprat, Perrine Batude, Laurent Brunet, Claire Fenouillet-Beranger, Maud Vinet
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Publication number: 20180090366Abstract: A method of fabrication of an integrated circuit is provided, including: providing a substrate including a first active layer and a first metallic level of interconnection arranged on top of the active layer and including first lines of interconnection separated by a first filling of sacrificial material; forming a superposition of an insulator layer and second lines of interconnection; providing access to the first filling through the insulator layer; filling the provided access with a second filling of sacrificial material; forming a second active layer on top of the second metallic level of interconnection; providing access to the second filling through the second active layer; and removing the first and the second fillings by a chemical etching through the provided access to the second filling.Type: ApplicationFiled: September 26, 2017Publication date: March 29, 2018Applicant: Commissariat a l'energie atomique et aux energies alternativesInventors: Fabien DEPRAT, Perrine BATUDE, Laurent BRUNET, Claire FENOUILLET-BERANGER, Maud VINET
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Publication number: 20170372967Abstract: A process for fabricating a transistor structure produced sequentially, comprises at least one string of the following steps: producing at least one first transistor from a first semiconductor layer possibly made of silicon; encapsulating at least the first transistor with at least one first dielectric layer defining a first assembly; bonding a second dielectric layer located on the surface of a second semiconductor layer possibly made of silicon, to the first dielectric layer; depositing a planarizing material layer on the surface of the second semiconductor layer; selectively etching the planarizing material layer, to the second semiconductor layer; and producing at least one second transistor from the second semiconductor layer.Type: ApplicationFiled: June 16, 2017Publication date: December 28, 2017Inventors: Laurent BRUNET, Nicolas POSSEME
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Patent number: 9779982Abstract: This method includes the following steps: a) providing a first structure successively including a substrate, an electronic device, a dielectric layer, and a first semiconductor layer; b) providing a second structure successively including a substrate, an active layer, a dielectric layer, and a second semiconductor layer, the active layer being designed to form an electronic device; c) bonding the first and second structures by direct bonding between the first and second semiconductor layers so as to form a bonding interface; d) removing the substrate of the second structure so as to expose the active layer; e) introducing dopants into the first and second semiconductor layers so as to form a ground plane.Type: GrantFiled: December 22, 2016Date of Patent: October 3, 2017Assignee: COMMISSARIAT À L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventors: Perrine Batude, Laurent Brunet, Claire Fenouillet-Beranger, Frank Fournel
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Publication number: 20170221767Abstract: A method is provided for forming a transistor from a stack including the following successive layers: an electrically insulating layer, an active zone including at least one semiconductor layer, and a gate, sides of which are configured to be covered by at least one spacer, the method including: a phase of forming lateral cavities; and forming a raised drain and a raised source that fill the lateral cavities by growing the semiconductor layer via epitaxy, the forming of the lateral cavities includes, after a step of partially removing the semiconductor layer: forming a sacrificial layer, partially removing the sacrificial layer; forming spacers against the sides of the gate resting on a residual sacrificial layer; and totally removing the residual sacrificial layer in order to form the lateral cavities.Type: ApplicationFiled: February 1, 2017Publication date: August 3, 2017Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventors: Nicolas POSSEME, Laurent BRUNET, Perrine BATUDE
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Patent number: 9689913Abstract: A method for measuring the changes of the electrical performance of an FDSOI transistor between a first and a second state of the transistor after an operating period t1, including the following steps: measurement of the transistor's capacities C1 and C2 respectively in the first and second states, according to a voltage VFG applied between the gate and the source and drain areas, determination, in relation to characteristic C1(VFG) varying between a maximum value Cmax and a minimum value Cmin, with three inflection points, of an ordinate value Cplat of C1(VFG) at the second inflection point of C1(VFG), and of two abscissa values VUpper(0) and VLower(0) of C1(VFG) according to equations VUpper(0)=C1?1((Cmax+Cplat)/2) and VLower(0)=C1?1((Cmin+Cplat)/2), determination, from characteristic C2(VFG), of two abscissa values VUpper(t1) and VLower(t1) of C2(VFG) according to equations VUpper(t1)=C2?1((Cmax+Cplat)/2) and VLower(t1)=C2?1((Cmin+Cplat)/2), determination of variations of defect densities ?Dit1, ?Dit2 bType: GrantFiled: February 6, 2013Date of Patent: June 27, 2017Assignees: Commissariat à l'énergie atomique et aux énergies alternatives, STMICROELECTRONICS (CROLLES 2) SASInventors: Xavier Garros, Laurent Brunet
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Publication number: 20170178950Abstract: This method includes the following steps: a) providing a first structure successively including a substrate, an electronic device, a dielectric layer, and a first semiconductor layer; b) providing a second structure successively including a substrate, an active layer, a dielectric layer, and a second semiconductor layer, the active layer being designed to form an electronic device; c) bonding the first and second structures by direct bonding between the first and second semiconductor layers so as to form a bonding interface; d) removing the substrate of the second structure so as to expose the active layer; e) introducing dopants into the first and second semiconductor layers so as to form a ground plane.Type: ApplicationFiled: December 22, 2016Publication date: June 22, 2017Applicant: COMMISSARIAT À L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventors: Perrine BATUDE, Laurent BRUNET, Claire FENOUILLET-BERANGER, Frank FOURNEL
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Patent number: 8896466Abstract: In one aspect of the method for displaying an image on a screen of a cockpit of an aircraft, control means: control a first display on the screen of an image comprising a background; and then control a second display so that, in at least one zone of the image that is determined independently of the background, the background presents a non-zero second mean luminance that is less than a first mean luminance that it presented during the first display. In another aspect, the control means control the display on the screen of an image comprising a background in such a manner, that at least in a zone of the image that is determined independently of the background, the background presents non-zero mean luminance that is less than mean luminance of the remainder of the background.Type: GrantFiled: July 16, 2010Date of Patent: November 25, 2014Assignees: Airbus Operations (S.A.S.), Airbus (S.A.S.)Inventors: Laurent Georges, Remi Cabaret De Alberti, Laetitia Lambinet, Laurent Brunet
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Patent number: 8525528Abstract: A method for evaluating the electric performances of an FDSOI transistor, including the steps of: measuring capacitance and/or conductance of the FDSOI transistor, by applying a voltage VBG>0 on a substrate composed of semiconductor of the FDSOI transistor when the FDSOI transistor is NMOS or a voltage VBG<0 on the substrate composed of semiconductor of the FDSOI transistor when the FDSOI transistor is PMOS, depending on a voltage VFG applied between a gate and source and drain regions of the FDSOI transistor.Type: GrantFiled: August 20, 2010Date of Patent: September 3, 2013Assignee: Commissariat a l'Energie Atomique et aux Energies AlternativesInventors: Xavier Garros, Laurent Brunet
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Publication number: 20110050253Abstract: A method for evaluating the electric performances of an FDSOI transistor, including the steps of: measuring the capacitance and/or the conductance of the FDSOI transistor, by applying a rear voltage VBG>0 or VBG<0 on the substrate of the transistor, depending on a front voltage VFG applied on the gate of the transistor, calculating the theoretical values of the capacitance and/or the conductance of a transistor modeled by an electric circuit equivalent to the FDSOI transistor, for different selected theoretical values of defect densities Dit1, Dit2 at the dielectric-semiconductor interfaces of the modeled transistor, determining the real values of Dit1, Dit2 at the corresponding interfaces of the FDSOI transistor by a comparison between the measured values of the capacitance and/or the conductance of the FDSOI transistor and the calculated theoretical values of the capacitance and/or the conductance of the modeled transistor.Type: ApplicationFiled: August 20, 2010Publication date: March 3, 2011Applicant: Comm. a l' ener. atom. et aux energies alter.Inventors: Xavier GARROS, Laurent BRUNET
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Publication number: 20110018742Abstract: In one aspect of the method for displaying an image on a screen of a cockpit of an aircraft, control means: control a first display on the screen of an image comprising a background; and then control a second display so that, in at least one zone of the image that is determined independently of the background, the background presents a non-zero second mean luminance that is less than a first mean luminance that it presented during the first display. In another aspect, the control means control the display on the screen of an image comprising a background in such a manner, that at least in a zone of the image that is determined independently of the background, the background presents non-zero mean luminance that is less than mean luminance of the remainder of the background.Type: ApplicationFiled: July 16, 2010Publication date: January 27, 2011Applicants: AIRBUS OPERATIONS, AIRBUSInventors: Laurent Georges, Remi Cabaret De Alberti, Laetitia Lambinet, Laurent Brunet