Patents by Inventor Messaoud Bedjaoui

Messaoud Bedjaoui 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).

  • Publication number: 20190372072
    Abstract: Encapsulated microbattery comprising a microbattery supported by a substrate, an encapsulation cover which comprises a first face in contact with the microbattery and the substrate, said first face comprising a central zone and a peripheral zone surrounding the central zone, the central zone being in contact with the microbattery and the peripheral zone being in contact with at least the substrate. The encapsulation cover comprises cavities in fluid communication with the central zone of the first face, the cavities being configured to collect at least one gaseous element generated by the microbattery during its operation.
    Type: Application
    Filed: May 28, 2019
    Publication date: December 5, 2019
    Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Messaoud BEDJAOUI, Jean BRUN, David SIONNEAU
  • Patent number: 10446810
    Abstract: The invention relates to an electronic system comprising at least one device comprising a substrate (110) carrying at least one electronic component provided with at least one electrical connector (121, 122), with the system further comprising a support of said device, characterised in that the device comprises at least one passage (361, 362) according to a dimension in thickness of the device, said passage passing through the electrical connector (121, 122), and in that it comprises at least one electrically conductive pillar (471, 472) protruding on a first face of the support, with the electrically conductive pillar (471, 472) passing through the passage (361, 362) by being configured to be in electrical continuity with the electrical connector (121, 122) passed through by said passage.
    Type: Grant
    Filed: October 12, 2016
    Date of Patent: October 15, 2019
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Messaoud Bedjaoui, Raphael Salot
  • Publication number: 20190260009
    Abstract: Method for producing a positive electrode for a solid-state lithium microbattery comprising the following successive steps: supplying of a substrate made of ceramic, glass or silicon, locally covered with a metal layer, depositing of a cathodic layer made of a positive electrode material, for example made of mixed lithium oxide, the cathodic layer having a thickness greater than 1 ?m, a first portion of the cathodic layer covering the substrate and a second portion of the cathodic layer covering the metal layer, intended to form the positive electrode, carrying out of a heat treatment at a temperature greater than or equal to 400° C., on the cathodic layer, in such a way as to crystallise the second portion of the cathodic layer in order to form a positive electrode, and in such a way as to delaminate the first portion of the cathodic layer.
    Type: Application
    Filed: February 14, 2019
    Publication date: August 22, 2019
    Inventors: Messaoud Bedjaoui, Johnny Amiran, Nicolas Lopez
  • Publication number: 20190233281
    Abstract: Process for encapsulation of a microelectronic device comprising the following steps in sequence: supply a support substrate comprising a first principal face on which a microelectronic device is placed, a second principal face, and a lateral face, deposit a bonding layer on the first principal face of the substrate, position an encapsulation cover comprising a first principal face, a second principal face, and a lateral face, on the bonding layer, deposit a lateral protection layer on: the lateral face and the periphery of the second principal face of the support substrate, the lateral face and the periphery of the second principal face of the encapsulation cover, the lateral protection layer delimiting a protected zone, thinning of the second principal face of the support substrate and/or the second principal face of the encapsulation cover outside the protected zone.
    Type: Application
    Filed: January 28, 2019
    Publication date: August 1, 2019
    Inventor: Messaoud Bedjaoui
  • Patent number: 10308001
    Abstract: A method for manufacturing an electronic device including a substrate, including assembling the substrate, by a joining zone of a first face of the substrate, with a joining zone of a first face of a carrier, and disjoining the substrate relatively to the carrier. After the step of assembling, the method includes formation of a film on the substrate, the film being configured to adhere to an adhesion zone of a second face of the substrate opposite the first face of the substrate, the adhesive force between the film and the adhesion zone of the second face of the substrate being chosen greater than the joining force between the joining zone of the carrier and the joining zone of the first face of the substrate. A traction on the film has a force of traction configured to overcome the joining force without overcoming the adhesive force.
    Type: Grant
    Filed: June 24, 2016
    Date of Patent: June 4, 2019
    Assignee: Commissariat A L'Energie Atomique et aux Energies Alternatives
    Inventors: Messaoud Bedjaoui, Pierre Garrec, Sylvain Nizou
  • Patent number: 10305147
    Abstract: Method for reversible bonding between a first element and a second element, comprising the implementation of the following steps: a) producing at least one oxide layer on at least one first face of the first element or of the second element; b) joining the first face of the first element with the first face of the second element such that the oxide layer forms a bonding interface between the first element and the second element; c) disjoining the second element with regard to the first element by the application of a heat treatment under controlled humid atmosphere physically and/or chemically degrading the oxide layer.
    Type: Grant
    Filed: June 21, 2017
    Date of Patent: May 28, 2019
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Messaoud Bedjaoui, Sylvain Poulet
  • Patent number: 10290893
    Abstract: A method of vertically assembling encapsulated single microbatteries, wherein the vertical assembly contains, between the microbatteries, an electrical insulation and/or sealing layer and a metal layer, successively including: a step of stacking and attaching at least two single microbatteries, previously encapsulated, stacked on each other; and forming a metal layer, capable of ensuring the electrical coupling of each of the metal layers of each of the encapsulated single microbatteries.
    Type: Grant
    Filed: June 20, 2013
    Date of Patent: May 14, 2019
    Assignee: Commisariat a l'Energie Atomique et aux Energies Alternatives
    Inventors: Messaoud Bedjaoui, Gabriel Delepierre, Sylvain Poulet
  • Patent number: 10193110
    Abstract: An electrochemical device, such as a microbattery or an electrochromic system, including at least one stack of active layers containing lithium, said stack being arranged on a substrate and being covered by an encapsulation layer. The encapsulation layer includes at least: a barrier film presenting at least one electrically insulating surface and including at least one layer hermetic to oxidising species, said adhesive film including a juxtaposition of electrically conducting adhesive strips and of electrically insulating adhesive strips, and an adhesive film, provided with a first surface and a second surface, the first surface being in contact with the electrically insulating surface of the barrier film and the second surface covering the stack of active layers and a part of the substrate.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: January 29, 2019
    Assignee: COMMISSARIAT À L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Messaoud Bedjaoui, Sylvain Poulet, Thomas Sebastien
  • Publication number: 20180309097
    Abstract: Sealing cell for encapsulating a microelectronic component arranged on a substrate, with a cap, said sealing cell including: a bottom including a receiving zone for the substrate and a peripheral zone surrounding the receiving zone, a side wall formed of an internal face, an external face and an upper face, the upper face being configured to support the cap facing the receiving zone, an opening, arranged in the bottom of the cell, in the side wall, or in the cap, the opening being configured to be connected to a pumping system, in such a way as to be able to place under controlled atmosphere a cavity delimited by the side wall, the bottom and the cap.
    Type: Application
    Filed: April 23, 2018
    Publication date: October 25, 2018
    Inventors: Messaoud Bedjaoui, Jean Brun, Johnny Amiran
  • Publication number: 20170373350
    Abstract: Method for reversible bonding between a first element and a second element, comprising the implementation of the following steps: a) producing at least one oxide layer on at least one first face of the first element or of the second element; b) joining the first face of the first element with the first face of the second element such that the oxide layer forms a bonding interface between the first element and the second element; c) disjoining the second element with regard to the first element by the application of a heat treatment under controlled humid atmosphere physically and/or chemically degrading the oxide layer.
    Type: Application
    Filed: June 21, 2017
    Publication date: December 28, 2017
    Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Messaoud BEDJAOUI, Sylvain Poulet
  • Patent number: 9781833
    Abstract: This invention relates to a method for producing an electrical system comprising a support (1) bearing on a first face at least one device; with the device comprising at least one electronic component (2) provided with at least one electrical connector (21, 22), with the method comprising: a step of setting in place of a cover (6) positioned above the component; said cover (6) comprising at least one passage (61, 62) according to a dimension in thickness of the cover (6) in such a way as to form an access space to the at least one electrical connector (21, 22), a step of forming a sealing seam (71) in such a way that the component is encapsulated in a sealed cavity (9) delimited by the first face of the support (1), the first face of the cover (6) and the sealing seam (7).
    Type: Grant
    Filed: October 14, 2016
    Date of Patent: October 3, 2017
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Messaoud Bedjaoui, Raphael Salot
  • Patent number: 9755264
    Abstract: A method for the production of a battery includes at least production, against a substrate made of a material able to form an electrode, of at least one solid electrolyte layer, production of a first electrode in contact with the electrolyte, and thinning the substrate such that at least a remaining proportion of the substrate, in contact with the solid electrolyte layer, forms a second electrode.
    Type: Grant
    Filed: November 23, 2012
    Date of Patent: September 5, 2017
    Assignee: Commissariat à l'énergie atomique et aux énergies alternatives
    Inventors: Steve Martin, Messaoud Bedjaoui, Sylvain Poulet, Jouhaiz Rouchou
  • Publication number: 20170111994
    Abstract: This invention relates to a method for producing an electrical system comprising a support (1) bearing on a first face at least one device: with the device comprising at least one electronic component (2) provided with at least one electrical connector (21, 22), with the method comprising: a step of setting in place of a cover (6) positioned above the component; said cover (6) comprising at least one passage (61, 62) according to a dimension in thickness of the cover (6) in such a way as to form an access space to the at least one electrical connector (21, 22), a step of forming a sealing seam (71) in such a way that the component is encapsulated in a sealed cavity (9) delimited by the first face of the support (1), the first face of the cover (6) and the sealing seam (7), The method comprises a step of filling with a conductive material of is at least one passage (61, 62) of the cover (6) in such a way as to establish an electrical continuity between the conductive material and the at least one electrical co
    Type: Application
    Filed: October 14, 2016
    Publication date: April 20, 2017
    Applicant: Commissariat A L'Energie Atomique et aux Energies Alternatives
    Inventors: Messaoud Bedjaoui, Raphael Salot
  • Publication number: 20170104195
    Abstract: The invention relates to an electronic system comprising at least one device comprising a substrate (110) carrying at least one eiectronic component provided with at least one electrical connector (121, 122), with the system further comprising a support of said device, characterised in that the device comprises at least one passage (361, 362) according to a dimension in thickness of the device, said passage passing through the electrical connector (121, 122), and in that it comprises at least one electrically conductive pillar (471, 472) protruding on a first face of the support, with the electrically conductive pillar (471, 472) passing through the passage (361, 362) by being configured to be in electrical continuity with the electrical connector (121, 122) passed through by said passage.
    Type: Application
    Filed: October 12, 2016
    Publication date: April 13, 2017
    Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Messaoud BEDJAOUI, Raphael SALOT
  • Publication number: 20160375672
    Abstract: A method for manufacturing an electronic device including a substrate, including assembling the substrate, by a joining zone of a first face of the substrate, with a joining zone of a first face of a carrier, and disjoining the substrate relatively to the carrier. After the step of assembling, the method includes formation of a film on the substrate, the film being configured to adhere to an adhesion zone of a second face of the substrate opposite the first face of the substrate, the adhesive force between the film and the adhesion zone of the second face of the substrate being chosen greater than the joining force between the joining zone of the carrier and the joining zone of the first face of the substrate. A traction on the film has a force of traction configured to overcome the joining force without overcoming the adhesive force.
    Type: Application
    Filed: June 24, 2016
    Publication date: December 29, 2016
    Applicant: Commissariat A L'Energie Atomique et aux Energies Alternatives
    Inventors: Messaoud BEDJAOUI, Pierre GARREC, Sylvain NIZOU
  • Publication number: 20160293905
    Abstract: An electrochemical device, such as a microbattery or an electrochromic system, including at least one stack of active layers containing lithium, said stack being arranged on a substrate and being covered by an encapsulation layer. The encapsulation layer includes at least: a barrier film presenting at least one electrically insulating surface and including at least one layer hermetic to oxidising species, said adhesive film including a juxtaposition of electrically conducting adhesive strips and of electrically insulating adhesive strips, and an adhesive film, provided with a first surface and a second surface, the first surface being in contact with the electrically insulating surface of the barrier film and the second surface covering the stack of active layers and a part of the substrate.
    Type: Application
    Filed: March 31, 2016
    Publication date: October 6, 2016
    Applicant: COMMISSARIAT À L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Messaoud BEDJAOUI, Sylvain POULET, Thomas SEBASTIEN
  • Patent number: 9419254
    Abstract: A lithium microbattery comprises a stack of active layers containing lithium and a protective cover covering the stack of active layers. The protective cover is fixed to the stack of active layers by means of a layer of glue. A buffer structure comprising at least one alumina layer is arranged between the stack of active layers and the layer of glue, the buffer structure being in contact with said stack of active layers.
    Type: Grant
    Filed: July 30, 2014
    Date of Patent: August 16, 2016
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Messaoud Bedjaoui, Hermance Desre, Aboubakr Ennajdaoui, Sylvain Poulet
  • Patent number: 9287532
    Abstract: An electric battery including a microbattery provided with first and second current collectors and an encapsulation device including an electrically-conductive and sealing layer formed by a matrix made of polymer material including electrically-conductive particles. First and second connection pads made of electrically-conductive material are respectively electrically connected to the first and second current collectors of the microbattery. The encapsulation device also includes an additional microbattery provided with first and second current collectors, arranged opposite to and separate from the microbattery by the sealing layer. The first and/or second current collectors of the additional microbattery are electrically connected, respectively, to the first and/or second connection pads via at least a portion of the electrically-conductive particles.
    Type: Grant
    Filed: July 5, 2012
    Date of Patent: March 15, 2016
    Assignee: COMMISSARIAT À L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Gabriel Delepierre, Messaoud Bedjaoui
  • Patent number: 9288912
    Abstract: The method for producing a patterned layer of first material on a surface of a substrate comprises the following successive steps: arranging a particle on the surface of the substrate; depositing a resin by spin coating on the surface of the substrate so as to form the patterned layer of first material and a hole passing through the layer of first material and opening onto the particle; the material of the particle and the resin being chosen such that the particle exerts a repulsive interaction with respect to the resin.
    Type: Grant
    Filed: July 29, 2014
    Date of Patent: March 15, 2016
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Thomas Sebastien, Messaoud Bedjaoui, Aboubakr Ennajdaoui
  • Publication number: 20150188186
    Abstract: A method of vertically assembling encapsulated single microbatteries, wherein the vertical assembly contains, between the microbatteries, an electrical insulation and/or sealing layer and a metal layer, successively including: a step of stacking and attaching at least two single microbatteries, previously encapsulated, stacked on each other; and forming a metal layer, capable of ensuring the electrical coupling of each of the metal layers of each of the encapsulated single microbatteries.
    Type: Application
    Filed: June 20, 2013
    Publication date: July 2, 2015
    Inventors: Messaoud Bedjaoui, Gabriel Delepierre, Sylvain Poulet