Patents by Inventor Keisuke Egashira

Keisuke Egashira 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).

  • Publication number: 20170092484
    Abstract: Method and apparatus for rinsing and drying a semiconductor substrate having a first rinse liquid such as water on the substrate in a substrate processing system. The method includes dispensing onto the substrate liquid carbon dioxide to displace any liquid present on the substrate and to dry the substrate. The apparatus includes a chamber for rinsing and drying the substrate.
    Type: Application
    Filed: September 30, 2016
    Publication date: March 30, 2017
    Inventors: Ian J. Brown, Wallace P. Printz, Antonio Luis Pacheco Rotondaro, Gentaro Goshi, Keisuke Egashira
  • Publication number: 20160300710
    Abstract: Disclosed is a substrate processing method that includes a water-repellency step, a rinse step, and a dry step. In the water-repellency step, a water-repellent agent which is heated to a first predetermined temperature and then reaches a second predetermined temperature lower than the first predetermined temperature, is supplied to a substrate. In the rinse step, a rinse liquid is supplied to the substrate after the water-repellency step. In the dry step, the rinse liquid on the substrate after the rinse step is removed.
    Type: Application
    Filed: March 30, 2016
    Publication date: October 13, 2016
    Inventors: Kotaro Oishi, Keisuke Egashira, Kouzou Tachibana, Hideaki Udou
  • Publication number: 20150318183
    Abstract: Disclosed is a substrate liquid processing apparatus. The substrate liquid processing apparatus includes a processing unit, a nozzle, a silylation liquid supply mechanism, and a blocking fluid supply mechanism. The processing unit performs a water repellency imparting processing on a substrate by supplying a silylation liquid to the substrate. The nozzle includes an ejection port configured to supply the silylation liquid to the substrate positioned in the processing unit, and a silylation liquid flow path in which the silylation liquid flows toward the ejection port. The silylation liquid supply mechanism supplies the silylation liquid to the silylation liquid flow path in the nozzle through a silylation liquid supply line. The blocking fluid supply mechanism supplies a blocking fluid that blocks the silylation liquid within the silylation liquid flow path in the nozzle from an atmosphere outside the ejection port.
    Type: Application
    Filed: April 17, 2015
    Publication date: November 5, 2015
    Inventors: Yasuyuki Ido, Naoki Shindo, Takehiko Orii, Keisuke Egashira, Yosuke Hachiya, Kotaro Ooishi, Hisashi Kawano, Shinichiro Shimomura
  • Patent number: 8969218
    Abstract: Disclosed is a technique for attaining high etching selectivity of a silicon nitride film to a silicon oxide film. The etching method includes a step of supplying a silylating agent to a substrate having a silicon nitride film and a silicon oxide film exposed on the surface thereof to thereby form a silylated film as a protective film over the surface of the silicon oxide film. After this step, an etching solution is supplied to the substrate. It is thus possible to selectively etch only the silicon nitride film.
    Type: Grant
    Filed: April 10, 2012
    Date of Patent: March 3, 2015
    Assignee: Tokyo Electron Limited
    Inventors: Tsukasa Watanabe, Keisuke Egashira, Miyako Kaneko, Takehiko Orii
  • Publication number: 20120264308
    Abstract: Disclosed is a technique for attaining high etching selectivity of a silicon nitride film to a silicon oxide film. The etching method includes a step of supplying a silylating agent to a substrate having a silicon nitride film and a silicon oxide film exposed on the surface thereof to thereby form a silylated film as a protective film over the surface of the silicon oxide film. After this step, an etching solution is supplied to the substrate. It is thus possible to selectively etch only the silicon nitride film.
    Type: Application
    Filed: April 10, 2012
    Publication date: October 18, 2012
    Applicant: Tokyo Electron Limited
    Inventors: Tsukasa WATANABE, Keisuke Egashira, Miyako Kaneko, Takehiko Orii