Patents by Inventor Kazuaki Moriyama

Kazuaki Moriyama 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: 6838305
    Abstract: A method of fabricating a solid-state imaging device is provided, which enables the formation of an anti-reflection film by oxidizing a surface of a metallic light-shield film without adding additional steps, even though the metallic light-shield film is composed of not only refractory metal silicide but also metals, including tungsten and molybdenum. The method comprises the steps of forming a metallic light-shield film on a light receiving sensor and a transfer electrode formed on a surface layer of a wafer, forming an opening on the metallic light-shield film on the light receiving sensor by etching, forming an interlayer film, and shaping the interlayer film into a lens shape by heat treatment. An atmosphere of either one or both of oxygen gas and ozone gas is prepared in a chamber for forming the interlayer film, and a surface of the metallic light-shield-film is oxidized before the interlayer film is formed.
    Type: Grant
    Filed: August 26, 2003
    Date of Patent: January 4, 2005
    Assignee: Sony Corporation
    Inventors: Kazuaki Moriyama, Takeshi Matsuda
  • Publication number: 20040082095
    Abstract: A method of fabricating a solid-state imaging device is provided, which enables to form an anti-reflection film by oxidizing a surface of a metallic light-shield film without adding a step even though the metallic light-shield film is composed of not only refractory metal silicide but also metals including tungsten and molybdenum. The method comprises the steps of forming a metallic light-shield film on a light receiving sensor and a transfer electrode formed on a surface layer of a wafer, forming an opening on the metallic light-shield film on the light receiving sensor by etching, forming an interlayer film, and shaping the interlayer film to be a lens shape by heat treatment. An atmosphere of either one or both of oxygen gas and ozone gas is prepared in a chamber for forming the interlayer film, and a surface of the metallic light-shield-film is oxidized before the interlayer film is formed.
    Type: Application
    Filed: August 26, 2003
    Publication date: April 29, 2004
    Inventors: Kazuaki Moriyama, Takeshi Matsuda