Patents by Inventor Hiroe Ogata

Hiroe Ogata 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).

  • Solid state imaging device and method for producing the same
    Patent number: 7323758
    Abstract: On a light shielding film 7, an anti-oxidation layer 9 covering at least the light shielding film 7 is formed. The anti-oxidation layer 9 is formed under a condition which does not oxidize a surface of the light shielding film 7. The anti-oxidation layer 9 is formed of a high melting point metal compound film having a light shielding property or an insulating film having a light transmissive property. Thus, the scattering ratio of the incident light at the surface of the light shielding film 7 can be uniform among all the pixels, and as a result, a solid state imaging device having suppressed sensitivity non-uniformity can be realized. Since the surface of the light shielding film 7 is not oxidized, the thickness of the light shielding film 7 can be reduced. Thus, the present invention can comply with the demand for size reduction of the pixels.
    Type: Grant
    Filed: March 16, 2005
    Date of Patent: January 29, 2008
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Naoto Niisoe, Hiroe Ogata, Rieko Nishio, Toshihiko Yano, Hitoshi Doi
  • Solid state imaging device and method for producing the same
    Publication number: 20060081848
    Abstract: On a light shielding film 7, an anti-oxidation layer 9 covering at least the light shielding film 7 is formed. The anti-oxidation layer 9 is formed under a condition which does not oxidize a surface of the light shielding film 7. The anti-oxidation layer 9 is formed of a high melting point metal compound film having a light shielding property or an insulating film having a light transmissive property. Thus, the scattering ratio of the incident light at the surface of the light shielding film 7 can be uniform among all the pixels, and as a result, a solid state imaging device having suppressed sensitivity non-uniformity can be realized. Since the surface of the light shielding film 7 is not oxidized, the thickness of the light shielding film 7 can be reduced. Thus, the present invention can comply with the demand for size reduction of the pixels.
    Type: Application
    Filed: March 16, 2005
    Publication date: April 20, 2006
    Inventors: Naoto Niisoe, Hiroe Ogata, Rieko Nishio, Toshihiko Yano, Hitoshi Doi