Patents by Inventor Kiyotoshi Sakamoto

Kiyotoshi Sakamoto 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: 6578515
    Abstract: A film formation apparatus for plasma CVD and etching methods making use of inductive coupling plasma generators. The apparatus comprises a plurality of plasma generators for inductive coupling methods, one or more film formation gas discharge pipes, and a substrate setting table facing the plurality of plasma generators via a reaction zone. The film formation gas discharge pipes are included in each of two movable members capable of performing reciprocating motions along a substrate surface on the substrate setting table, while intersecting each other. Thereby, a plasma with a relatively high density can be uniformly created over a large area, the film formation gas excited by free radicals in the plasma can uniformly spread over the film formation target, and a film can be formed with a high deposition rate. Consequently, a large-sized substrate with a good quality of thin film can be provided.
    Type: Grant
    Filed: September 20, 2001
    Date of Patent: June 17, 2003
    Assignee: Fuji Daiichi Seisakusho Co., Ltd.
    Inventors: Kiyotoshi Sakamoto, Tatsuo Morita
  • Publication number: 20020069827
    Abstract: A film formation apparatus in plasma CVD and etching methods making use of an inductive coupling method. The apparatus comprises a plurality of plasma generators in inductive coupling method, one or more film formation gas discharge means, and a substrate setting means facing the plurality of plasma generators via a reaction zone. The film formation gas discharge means is included in each of two movable members capable of performing reciprocating motions along a substrate surface on the substrate setting means, while intersecting each other. Thereby, a plasma with a relatively high density can be uniformly created over a large area, the film formation gas excited by free radicals in the plasma can uniformly spread over the film formation target, and a film can be formed with a high deposition rate. Consequently, a large-sized substrate with a good quality of thin film can be provided.
    Type: Application
    Filed: September 20, 2001
    Publication date: June 13, 2002
    Inventors: Kiyotoshi Sakamoto, Tatsuo Morita