Patents by Inventor Stephane Demiguel

Stephane Demiguel 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: 20240136388
    Abstract: A method for fabricating an optoelectronic component includes at least one photodiode, the steps of the method making it possible to move the electric carrier collection field to the layer least sensitive to radiation, thus reducing the influence of irradiation on the dark current.
    Type: Application
    Filed: October 16, 2023
    Publication date: April 25, 2024
    Inventors: Stéphane DEMIGUEL, Jean-Luc REVERCHON, Marco BENFANTE
  • Publication number: 20120139073
    Abstract: The invention concerns a method for fabricating at least one detector pixel cell (45) connected to an element (82) formed in a weakly doped silicon substrate (81), characterized in that it comprises: firstly, a first step to fabricate at least one layer (61) by implantation doping and activation annealing, secondly, a second step to fabricate at least one connection node (85) in a circuit (83), from an element (82) formed in the substrate (81) by dry etching and metallization, a step to combine, by bonding, the fabricated doped layer (61) with the fabricated connection node (85); and a step to individualize at least one pixel cell (45) in the doped layer (61) by dry etching; and a passivation and opening step opposite the individualized cell (45), by dry etching. The invention also comprises a sensor including at least one such cell.
    Type: Application
    Filed: December 6, 2011
    Publication date: June 7, 2012
    Inventor: Stephane Demiguel
  • Publication number: 20110233609
    Abstract: The invention relates to a method for producing an infrared radiation sensor, said sensor comprising an infrared photodiode array formed in a first material and a reading circuit formed in a second material, said method comprising the steps of: sticking, through molecular adhesion, a first material side surface onto an optically transparent crystalline material side surface having infrared radiation and a coefficient of thermal expansion similar to that of the second material, give or take 20%; thinning the body of the first material side surface so that the latter is less that 25 ?m; producing infrared-sensitive photodiodes onto the thus-thinned first material side surface; depositing contact ball bearings onto the infrared photodiodes; and mounting the reading circuit onto the first material side surface through flip chip technology.
    Type: Application
    Filed: November 27, 2009
    Publication date: September 29, 2011
    Applicant: Sagem Defense Securite
    Inventors: Arnaud Cordat, Herve Sik, Stéphane Demiguel
  • Patent number: 7298943
    Abstract: The present invention relates to a monolithic optical component (400) comprising a light-absorbing layer and a waveguide structure (2). The invention is more particularly adapted to a monolithic component (400) comprising an evanescent coupling photodiode (6) integrated with the waveguide (2). The monolithic optical component (400) comprises a light-absorbing layer and a waveguide (2) evanescently coupled with the light-absorbing layer, the waveguide (2) having one end coupled to an input face (12) of the component to receive an input wave, the 10 component (400) being characterized in that the input face is convex.
    Type: Grant
    Filed: September 10, 2003
    Date of Patent: November 20, 2007
    Assignee: Avanex Corporation
    Inventors: Stephane Demiguel, Louis Giraudet, Mohand Achouche
  • Publication number: 20060165349
    Abstract: The present invention relates to a monolithic optical component (400) comprising a light-absorbing layer and a waveguide structure (2). The invention is more particularly adapted to a monolithic component (400) comprising an evanescent coupling photodiode (6) integrated with the waveguide (2). The monolithic optical component (400) comprises a light-absorbing layer and a waveguide (2) evanescently coupled with the light-absorbing layer, the waveguide (2) having one end coupled to an input face (12) of the component to receive an input wave, the 10 component (400) being characterized in that the input face is convex.
    Type: Application
    Filed: September 10, 2003
    Publication date: July 27, 2006
    Inventors: Stephane Demiguel, Louis Giraudet, Mohand Achouche