Patents by Inventor Hajime Ootake

Hajime Ootake 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).

  • Patent number: 8704323
    Abstract: A method for manufacturing a solid state image forming device in one embodiment includes forming a transparent resin layer on a semiconductor substrate having a plurality of photodiode layers formed thereon in a lattice, through R, G, and B color filters that are formed according to a Bayer arrangement; forming a plurality of first microlens mother dies on the transparent resin layer at the positions corresponding to the G color filters in such a manner that the outer peripheries thereof are separated from each other; forming a plurality of second microlens mother dies in such a manner that they are formed to fill the gap between the first microlens mother dies and the outer peripheries thereof are separated from each other; and etching the transparent resin layer with the plurality of first microlens mother dies and the plurality of second microlens mother dies being used as masks.
    Type: Grant
    Filed: February 27, 2013
    Date of Patent: April 22, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Hajime Ootake
  • Publication number: 20130228888
    Abstract: A method for manufacturing a solid state image forming device in one embodiment includes forming a transparent resin layer on a semiconductor substrate having a plurality of photodiode layers formed thereon in a lattice, through R, G, and B color filters that are formed according to a Bayer arrangement; forming a plurality of first microlens mother dies on the transparent resin layer at the positions corresponding to the G color filters in such a manner that the outer peripheries thereof are separated from each other; forming a plurality of second microlens mother dies in such a manner that they are formed to fill the gap between the first microlens mother dies and the outer peripheries thereof are separated from each other; and etching the transparent resin layer with the plurality of first microlens mother dies and the plurality of second microlens mother dies being used as masks.
    Type: Application
    Filed: February 27, 2013
    Publication date: September 5, 2013
    Applicant: Kabushiki Kaisha Toshiba
    Inventor: Hajime OOTAKE
  • Patent number: 8415193
    Abstract: A method for manufacturing a solid state image forming device according to an embodiment includes forming a transparent resin layer 20 on a semiconductor substrate 11, having a plurality of photodiode layers 12 formed thereon in a lattice, through R, G, and B color filters that are formed according to a Bayer arrangement; forming a plurality of first microlens mother dies 23 on the transparent resin layer 20 at the positions corresponding to the green color filters G in such a manner that the outer peripheries thereof are separated from each other; forming a plurality of second microlens mother dies 24 in such a manner that they are formed to fill the gap between the first microlens mother dies 23 and the outer peripheries thereof are separated from each other; and etching the transparent resin layer 20 with the plurality of first microlens mother dies 23 and the plurality of second microlens mother dies 24 being used as masks.
    Type: Grant
    Filed: July 21, 2010
    Date of Patent: April 9, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Hajime Ootake
  • Patent number: 8384175
    Abstract: Certain embodiments provide a method for manufacturing a solid state imaging device, the method including: forming a plurality of first semispherical lens bodies; forming a second transparent resin layer; and forming a second lens body. The plurality of first semispherical lens bodies are respectively formed on a plurality of photodiode layers formed on a principal surface of a semiconductor substrate. The second transparent resin layer is a resin layer having an etching rate higher than that of the first lens body, and is formed so that the semiconductor substrate including the plurality of first lens bodies is covered with the second transparent resin layer. The second lens bodies are formed on a surface except the top part of each of the first lens bodies by etching an entire surface of the second transparent resin layer until top parts of the first lens bodies are exposed.
    Type: Grant
    Filed: September 6, 2011
    Date of Patent: February 26, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Hajime Ootake
  • Publication number: 20120318962
    Abstract: According to one embodiment, an image pickup device includes a semiconductor substrate and first and second color filters. The semiconductor substrate includes a first principal surface and a second principal surface lying opposite the first principal surface. The first color filter has a first bottom surface lying on the second principal surface side and a first top surface lying opposite the first bottom surface. The second color filter has a second bottom surface lying on the second principal surface side and a second top surface lying opposite the second bottom surface. The first color filter includes a spectroscopic filter configured to allow light having passed through the semiconductor substrate to pass through. In a cross section perpendicular to the second principal surface, the first bottom surface is longer than the first top surface, and the second bottom surface is shorter than the second top surface.
    Type: Application
    Filed: June 20, 2012
    Publication date: December 20, 2012
    Inventors: Ikuko INOUE, Hajime OOTAKE, Hiromichi SEKI
  • Patent number: 8293565
    Abstract: A manufacturing method for a solid-state imaging device according to an embodiment of the present invention includes a step of forming a transparent resin layer above a principal surface of a semiconductor substrate, a step of exposing the transparent resin layer to light by using a grating mask having a first transmission region and a second transmission region having a higher transmittance of the light than the first transmission region in mutually separate positions, a step of forming first resin patterns and second resin patterns lower than the first resin patterns in mutually separate positions, and a step of forming first microlenses and second microlenses lower than the first microlenses.
    Type: Grant
    Filed: March 17, 2011
    Date of Patent: October 23, 2012
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Hajime Ootake
  • Publication number: 20120146169
    Abstract: Certain embodiments provide a method for manufacturing a solid state imaging device, the method including: forming a plurality of first semispherical lens bodies; forming a second transparent resin layer; and forming a second lens body. The plurality of first semispherical lens bodies are respectively formed on a plurality of photodiode layers formed on a principal surface of a semiconductor substrate. The second transparent resin layer is a resin layer having an etching rate higher than that of the first lens body, and is formed so that the semiconductor substrate including the plurality of first lens bodies is covered with the second transparent resin layer. The second lens bodies are formed on a surface except the top part of each of the first lens bodies by etching an entire surface of the second transparent resin layer until top parts of the first lens bodies are exposed.
    Type: Application
    Filed: September 6, 2011
    Publication date: June 14, 2012
    Applicant: Kabushiki Kaisha Toshiba
    Inventor: Hajime Ootake
  • Publication number: 20120003778
    Abstract: A manufacturing method for a solid-state imaging device according to an embodiment of the present invention includes a step of forming a transparent resin layer above a principal surface of a semiconductor substrate, a step of exposing the transparent resin layer to light by using a grating mask having a first transmission region and a second transmission region having a higher transmittance of the light than the first transmission region in mutually separate positions, a step of forming first resin patterns and second resin patterns lower than the first resin patterns in mutually separate positions, and a step of forming first microlenses and second microlenses lower than the first microlenses.
    Type: Application
    Filed: March 17, 2011
    Publication date: January 5, 2012
    Applicant: Kabushiki Kaisha Toshiba
    Inventor: Hajime OOTAKE
  • Publication number: 20110018080
    Abstract: A method for manufacturing a solid state image forming device according to an embodiment includes forming a transparent resin layer 20 on a semiconductor substrate 11, having a plurality of photodiode layers 12 formed thereon in a lattice, through R, G, and B color filters that are formed according to a Bayer arrangement; forming a plurality of first microlens mother dies 23 on the transparent resin layer 20 at the positions corresponding to the green color filters G in such a manner that the outer peripheries thereof are separated from each other; forming a plurality of second microlens mother dies 24 in such a manner that they are formed to fill the gap between the first microlens mother dies 23 and the outer peripheries thereof are separated from each other; and etching the transparent resin layer 20 with the plurality of first microlens mother dies 23 and the plurality of second microlens mother dies 24 being used as masks.
    Type: Application
    Filed: July 21, 2010
    Publication date: January 27, 2011
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventor: Hajime OOTAKE