Patents by Inventor Sami Oukassi
Sami Oukassi 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: 10991922Abstract: The present invention relates to a method for producing a microelectronic device successively comprising: a formation of a first current collector on a face of a substrate; a formation of a first electrode (14) on, and in electrical continuity with, a portion of the first current collector; a heat treatment configured to treat the first electrode (14) characterised by the fact that: the formation of the first collector comprises a formation of a first collector layer (12) on the face of the substrate and a formation of a second collector layer (13) covering at least one part, called covered part, of the first collector layer (12) and having a first face in contact with the first electrode (14), the second collector layer (13) is configured to protect the covered part during the heat treatment, such that the heat treatment does not oxidise said covered part.Type: GrantFiled: December 20, 2018Date of Patent: April 27, 2021Assignee: Commissariat A L'Energie Atomique et aux Energies AlternativesInventors: Christophe Dubarry, Francoise Geffraye, Sami Oukassi
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Publication number: 20210074477Abstract: An integrated energy storage component that includes a substrate supporting a contoured layer having a region with a contoured surface such as elongated pores. A stack structure is provided conformally over the contoured surface of this region. The stack is a single or repeated instance of MOIM layers, or MIOM layers, the M layers being metal layers, or a quasi-metal such as TiN, the O layers being oxide layers containing ions, and the I layer being an ionic dielectric. The regions having a contoured surface may be formed of porous anodized alumina.Type: ApplicationFiled: November 18, 2020Publication date: March 11, 2021Inventors: Sami Oukassi, Raphaël Salot, Frédéric Voiron, Valentin Sallaz
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Patent number: 10910667Abstract: This invention relates to a microelectronic device comprising: a first support, a second support, first respective faces of the first support and second support being arranged opposite, and a sealing layer between said first faces, characterized in that the sealing layer comprises at least one layer of an ionic conductive material of formula LixPyOzNw, with x strictly greater than 0 and less than or equal to 4.5, y strictly greater than 0 and less than or equal to 1, z strictly greater than 0 and less than or equal to 5.5, w greater than or equal to 0 and less than or equal to 1.Type: GrantFiled: November 5, 2018Date of Patent: February 2, 2021Assignee: Commissariat A L'Energie Atomique et aux Energies AlternativesInventors: Sami Oukassi, Xavier Baillin
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Patent number: 10878900Abstract: A solution for using elementary electrochemical components, manufactured from the same arrangement of materials and incorporated in a single electronic circuit, for information storage or for energy storage, is presented. Electrochemical components incorporating a first electrode, a second electrode and an active area between the two, can, by the application of different voltages for switching from a highly resistive state to a weakly resistive state or for switching from a state having one given electromotive force to a state having another electromotive force, be used respectively as a memory or as a battery.Type: GrantFiled: December 22, 2017Date of Patent: December 29, 2020Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventors: Daeseok Lee, Gabriel Molas, Sami Oukassi
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Publication number: 20200350569Abstract: An electrode, in particular for micro-batteries, produced in a plurality of layers with intermediate steps of masking a first layer leaving some parts of the latter exposed in order next to produce a removal of material eliminating defects. After removal of the masking layer, the second layer can be formed. Other layers can then follow in the same way.Type: ApplicationFiled: April 30, 2020Publication date: November 5, 2020Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventors: Arnaud BAZIN, Sami OUKASSI, Severine PONCET, Christophe SECOUARD
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Patent number: 10748917Abstract: A semiconductor component includes a first electrode, designated flat electrode, defining a plane; a second electrode, designated active electrode, separated from the first electrode by an electrolyte layer; a pillar, designated vertical pillar, extending essentially along an axis perpendicular to the plane defined by the flat electrode, the pillar including a third electrode, designated vertical electrode and an information storage layer, the information storage layer covering a surface of the vertical electrode; the flat electrode and the vertical pillar being laid out so as to form a memory point. In addition, the materials of the active electrode and the electrolyte layer are chosen so as to form an energy storage zone with the flat electrode.Type: GrantFiled: May 3, 2018Date of Patent: August 18, 2020Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventors: Daeseok Lee, Gabriel Molas, Sami Oukassi
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Publication number: 20200212686Abstract: An energy storage device includes at least one block, the block being connected to an input voltage Vin and delivering a voltage Vout greater than Vin and including: n energy storage units, where n?2; a charge and discharge management circuit electrically linked to the n storage units and making it possible to alternately connect all of the energy storage units of one and the same block to one another, in parallel mode or in series mode; the energy storage units respectively having an end of charge voltage Vend of charge and an end of discharge voltage Vend of discharge; the block having a defined block voltage VBlock between the low potential of the first energy storage unit and the high potential of the nth energy storage unit, wherein the charge and discharge management circuit includes: first means for triggering the toggling from the parallel mode to the series mode, through the exceedance of a first threshold voltage (Vthreshold1) in one of the energy storage units, the first threshold voltage corresponType: ApplicationFiled: January 11, 2018Publication date: July 2, 2020Inventors: Sami OUKASSI, Nicolas DUNOYER, Ghislaine DESPESSE
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Patent number: 10658584Abstract: An electrochemically actuatable electronic component comprises: a substrate; at least one first and one second actuating electrodes; at least one first and one second measuring electrodes; at least one storing electrode configured to free ions under the action of the actuating electrodes; at least one ionic conductor able to conduct the ions and that is located in a region placed between the measuring electrodes; a device suitable for: applying a voltage or a current between the first and second actuating electrodes to allow the migration of ions from the storing electrode to the first actuating electrode forming thereon an electrochemical deposition through the ionic conductor and for measuring, between the first and second measuring electrodes, a modification of at least one characteristic of the region placed between the first and second measuring electrodes, to determine at least one characteristic of the electronic component.Type: GrantFiled: November 10, 2016Date of Patent: May 19, 2020Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventors: Sami Oukassi, Raphaël Salot
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Patent number: 10483485Abstract: An encapsulation device comprises at least one assembly containing particles comprising at least a first material. The assembly has an open porosity. The particles: are distributed over a geometric structure that has a degree of compactness of said particles of greater than around 50% and preferably of greater than 60%, and are covered conformally by at least one layer referred to as an infiltration layer; the thickness of at least the infiltration layer closing off the porosity of the assembly comprising the particles covered by at least the layer, in the form of pores that are not connected to one another. A process for producing the encapsulation device is also provided.Type: GrantFiled: October 28, 2014Date of Patent: November 19, 2019Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventor: Sami Oukassi
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Publication number: 20190341105Abstract: A solution for using elementary electrochemical components, manufactured from the same arrangement of materials and incorporated in a single electronic circuit, for information storage or for energy storage, is presented. Electrochemical components incorporating a first electrode, a second electrode and an active area between the two, can, by the application of different voltages for switching from a highly resistive state to a weakly resistive state or for switching from a state having one given electromotive force to a state having another electromotive force, be used respectively as a memory or as a battery.Type: ApplicationFiled: December 22, 2017Publication date: November 7, 2019Inventors: Daeseok LEE, Gabriel MOLAS, Sami OUKASSI
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Publication number: 20190214609Abstract: The present invention relates to a method for producing a microelectronic device successively comprising: a formation of a first current collector on a face of a substrate; a formation of a first electrode (14) on, and in electrical continuity with, a portion of the first current collector; a heat treatment configured to treat the first electrode (14) characterised by the fact that: the formation of the first collector comprises a formation of a first collector layer (12) on the face of the substrate and a formation of a second collector layer (13) covering at least one part, called covered part, of the first collector layer (12) and having a first face in contact with the first electrode (14), the second collector layer (13) is configured to protect the covered part during the heat treatment, such that the heat treatment does not oxidise said covered part.Type: ApplicationFiled: December 20, 2018Publication date: July 11, 2019Applicant: Commissariat A L'Energie Atomique et aux Energies AlternativesInventors: Christophe DUBARRY, Francoise GEFFRAYE, Sami OUKASSI
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Publication number: 20190214679Abstract: The method for fabricating an electrochemical device includes the following successive steps: a first stack successively including a first electrode and an electrically insulating electrolyte having a first main surface in contact with the first electrode and an opposite second main surface; a polymerisation step of the electrolyte so as to define at least a first area presenting a first degree of cross-linking and a first cross-linking density and a second area presenting a second degree of cross-linking different from the first degree of cross-linking and/or a second cross-linking density different from the first cross-linking density, said at least first and second areas connecting the first main surface with the second main surface; and placing the second electrode in contact with the electrolyte.Type: ApplicationFiled: September 18, 2017Publication date: July 11, 2019Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventors: Arnaud BAZIN, Sami OUKASSI
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Publication number: 20190074540Abstract: This invention relates to a microelectronic device comprising: a first support, a second support, first respective faces of the first support and second support being arranged opposite, and a sealing layer between said first faces, characterized in that the sealing layer comprises at least one layer of an ionic conductive material of formula LixPyOzNw, with x strictly greater than 0 and less than or equal to 4.5, y strictly greater than 0 and less than or equal to 1, z strictly greater than 0 and less than or equal to 5.5, w greater than or equal to 0 and less than or equal to 1.Type: ApplicationFiled: November 5, 2018Publication date: March 7, 2019Applicant: Commissariat A L'Energie Atomique et aux Energies AlternativesInventors: Sami OUKASSI, Xavier BAILLIN
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Publication number: 20180323205Abstract: A semiconductor component includes a first electrode, designated flat electrode, defining a plane; a second electrode, designated active electrode, separated from the first electrode by an electrolyte layer; a pillar, designated vertical pillar, extending essentially along an axis perpendicular to the plane defined by the flat electrode, the pillar including a third electrode, designated vertical electrode and an information storage layer, the information storage layer covering a surface of the vertical electrode; the flat electrode and the vertical pillar being laid out so as to form a memory point. In addition, the materials of the active electrode and the electrolyte layer are chosen so as to form an energy storage zone with the flat electrode.Type: ApplicationFiled: May 3, 2018Publication date: November 8, 2018Inventors: Daeseok LEE, Gabriel MOLAS, Sami OUKASSI
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Patent number: 9882201Abstract: An electrochemical device including a stack of solid thin layers formed on a substrate, the stack successively including, a first current collector covering a part of the substrate, first electrode defining a pattern having bottom surface, top surface and side walls, the bottom surface of the pattern covering at least part of the first current collector, electrolyte layer configured to cover at least the top surface and at least part of the side walls of the pattern of the first electrode, a second electrode totally covering the electrolyte layer, the thickness of the electrolyte layer arranged between the walls of the pattern of first electrode and the second electrode being substantially equal around the pattern to within 20%, a second current collector totally covering the second electrode, the second current collector and the second electrode being electrically insulated from the first current collector and from the first electrode.Type: GrantFiled: October 22, 2015Date of Patent: January 30, 2018Assignee: COMMISSARIAT À L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventors: Sami Oukassi, Steve Martin
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Patent number: 9882232Abstract: A cable-type battery comprising: at least a first strand of a first polarity type, at least a second strand of a second polarity type, the second polarity type being the opposite of the first polarity type, an electrolyte layer in which the first strand and the second strand are arranged, the electrolyte layer being ionically conducting and electrically insulating, the first strand being ionically connected to the second strand. The first strand is coated by a spacer layer, the spacer being electrically insulating, the spacer being configured to prevent any direct contact between the first strand and the second strand. The strength of the material forming the spacer is greater than the strength of the material forming the electrolyte layer.Type: GrantFiled: July 13, 2015Date of Patent: January 30, 2018Assignee: COMMISSARIAT À L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventors: Hélène Porthault, Sami Oukassi
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Patent number: 9882183Abstract: The fabrication method of a lithium microbattery provides for use of a substrate successively covered by: a cathode, a solid electrolyte, and a first electrically conducting layer made from a material configured to combine with the lithium atoms. The first layer is devoid of contact with the cathode. The method further includes formation of a second electrically conducting layer configured to form a diffusion barrier for the lithium atoms. The second layer is electrically connected to the first layer and leaves at least a part of the first layer uncovered, the part being facing the electrolyte. Electrochemical deposition of a lithium anode is then performed from germination from the first and second electrically conducting layers.Type: GrantFiled: September 16, 2014Date of Patent: January 30, 2018Assignee: COMMISSARIAT À L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventors: Sami Oukassi, Raphaël Salot, Steve Martin
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Patent number: 9774027Abstract: A method for producing lithium-ion batteries comprising the steps of (a) forming, on a substrate, a cathode current collector layer and a stack of a cathode layer made from a material capable of inserting lithium ions, an electrolyte layer and an anode layer, (b) depositing a lithium layer on the anode layer in order to form a lithium alloy, (c) short-circuiting the anode and cathode layers by depositing an anode current collector layer on the anode layer, thereby causing the diffusion of the lithium ions from the anode layer to the cathode layer, and (d) separating the batteries, resulting in the opening of the short-circuit between the anode and cathode layers in all the batteries. The method simplifies and improves the method for producing lithium-ion microbatteries and improves the diffusion of the lithium ions from the anode layer to the cathode layer after short-circuiting these two layers.Type: GrantFiled: January 6, 2014Date of Patent: September 26, 2017Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventors: Sylvain Nizou, Johnny Amiran, Frederic Le Cras, Sami Oukassi
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Patent number: 9722278Abstract: A method for producing a solid lithium-based electrolyte for a solid microbattery implements the cathode sputtering of a lithium-based target material on an object supported by a substrate holder. A grid made of lithium-free electrically conductive material is interposed between the object and the lithium-based target material, the grid being electrically connected to the substrate holder.Type: GrantFiled: August 23, 2013Date of Patent: August 1, 2017Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventors: Steve Martin, Johnny Amiran, Lucie Le Van-Jodin, Sami Oukassi
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Publication number: 20170138900Abstract: An electrochemically actuatable electronic component comprises: a substrate; at least one first and one second actuating electrodes; at least one first and one second measuring electrodes; at least one storing electrode configured to free ions under the action of the actuating electrodes; at least one ionic conductor able to conduct the ions and that is located in a region placed between the measuring electrodes; a device suitable for: applying a voltage or a current between the first and second actuating electrodes to allow the migration of ions from the storing electrode to the first actuating electrode forming thereon an electrochemical deposition through the ionic conductor and for measuring, between the first and second measuring electrodes, a modification of at least one characteristic of the region placed between the first and second measuring electrodes, to determine at least one characteristic of the electronic component.Type: ApplicationFiled: November 10, 2016Publication date: May 18, 2017Inventors: Sami OUKASSI, Raphaël SALOT