Patents by Inventor Baudoin Lecohier

Baudoin Lecohier 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).

  • Process for protection of the surface of a fixed contact for a semiconductor color image sensor cell during a coloring process
    Patent number: 6951772
    Abstract: The invention relates to a process for making a semiconductor color image sensor cell comprising a metal layer in which a fixed contact is defined, an anti-reflecting layer covering the metal layer and a passivation layer covering the assembly. The method includes etching the passivation layer and stopping on the anti-reflecting layer so as to form a hole for the opening of the fixed contact; forming at least one colored filter element on a region of the passivation layer, the anti-reflecting layer then acting as a protection layer for the surface of the fixed contact; depositing a planarizing resin layer so as to cover the colored filter elements; forming micro-lenses on the planarizing resin layer above the colored filter elements; and etching the anti-reflecting layer to open the fixed contact.
    Type: Grant
    Filed: December 18, 2003
    Date of Patent: October 4, 2005
    Assignee: STMicroelectronics SA
    Inventors: Baudoin Lecohier, Brendan Dunne
  • Process for protection of the surface of a fixed contact for a semiconductor color image sensor cell during a coloring process
    Publication number: 20040185598
    Abstract: The invention relates to a to a process for making a semiconductor color image sensor cell comprising a metal layer in which a fixed contact is defined, an anti-reflecting layer covering the metal layer and a passivation layer covering the assembly. The method includes etching the passivation layer and stopping on the anti-reflecting layer so as to form a hole for the opening of the fixed contact; forming at least one colored filter element on a region of the passivation layer, the anti-reflecting layer then acting as a protection layer for the surface of the fixed contact; depositing a planarizing resin layer so as to cover the colored filter elements; forming micro-lenses on the planarizing resin layer above the colored filter elements; and etching the anti-reflecting layer to open the fixed contact.
    Type: Application
    Filed: December 18, 2003
    Publication date: September 23, 2004
    Applicant: STMICROELECTRONICS SA
    Inventors: Baudoin Lecohier, Brendan Dunne