Patents by Inventor Mihoko Nakamura

Mihoko Nakamura 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: 10546720
    Abstract: The present invention has an objective to provide a processing method and an ion beam processing apparatus capable of inhibiting deposition of redeposited films even for fine patterns. In an embodiment of the present invention, ion beam processing is performed such that an etching amount of an ion beam incident in extending directions of pattern trenches formed on a substrate is made larger than the etching amount of the ion beam incident in other directions. This processing enables fine patterns to be processed while inhibiting redeposited films from being deposited on the bottom portions of the trenches of the fine patterns.
    Type: Grant
    Filed: April 25, 2018
    Date of Patent: January 28, 2020
    Assignee: CANON ANELVA CORPORATION
    Inventors: Yoshimitsu Kodaira, Isao Takeuchi, Mihoko Nakamura
  • Publication number: 20180240646
    Abstract: The present invention has an objective to provide a processing method and an ion beam processing apparatus capable of inhibiting deposition of redeposited films even for fine patterns. In an embodiment of the present invention, ion beam processing is performed such that an etching amount of an ion beam incident in extending directions of pattern trenches formed on a substrate is made larger than the etching amount of the ion beam incident in other directions. This processing enables fine patterns to be processed while inhibiting redeposited films from being deposited on the bottom portions of the trenches of the fine patterns.
    Type: Application
    Filed: April 25, 2018
    Publication date: August 23, 2018
    Inventors: YOSHIMITSU KODAIRA, ISAO TAKEUCHI, MIHOKO NAKAMURA
  • Patent number: 9984854
    Abstract: The present invention has an objective to provide a processing method and an ion beam processing apparatus capable of inhibiting deposition of redeposited films even for fine patterns. In an embodiment of the present invention, ion beam processing is performed such that an etching amount of an ion beam incident in extending directions of pattern trenches formed on a substrate is made larger than the etching amount of the ion beam incident in other directions. This processing enables fine patterns to be processed while inhibiting redeposited films from being deposited on the bottom portions of the trenches of the fine patterns.
    Type: Grant
    Filed: December 8, 2014
    Date of Patent: May 29, 2018
    Assignee: CANON ANELVA CORPORATION
    Inventors: Yoshimitsu Kodaira, Isao Takeuchi, Mihoko Nakamura
  • Patent number: 9773973
    Abstract: A production process in which in an element isolation process for a magnetoresistive effect element, a re-deposited film adhered to a side wall of the element is efficiently removed by ion beam etching. Ion beam etching is performed while a substrate located being inclined relative to the grid is rotated. In the ion beam etching, an energy amount of an ion beam entering from a direction in which a pattern groove formed on the substrate extends is increased larger than the energy amount of the ion beam entering from another direction by controlling a rotation speed of the substrate, and the re-deposited film adhered to the side wall of the magnetoresistive effect element formed on the substrate is efficiently removed by etching.
    Type: Grant
    Filed: November 14, 2013
    Date of Patent: September 26, 2017
    Assignee: CANON ANELVA CORPORATION
    Inventors: Yoshimitsu Kodaira, Isao Takeuchi, Mihoko Nakamura
  • Publication number: 20160005957
    Abstract: A production process in which in an element isolation process for a magnetoresistive effect element, a re-deposited film adhered to a side wall of the element is efficiently removed by ion beam etching. Ion beam etching is performed while a substrate located being inclined relative to the grid is rotated. In the ion beam etching, an energy amount of an ion beam entering from a direction in which a pattern groove formed on the substrate extends is increased larger than the energy amount of the ion beam entering from another direction by controlling a rotation speed of the substrate, and the re-deposited film adhered to the side wall of the magnetoresistive effect element formed on the substrate is efficiently removed by etching.
    Type: Application
    Filed: November 14, 2013
    Publication date: January 7, 2016
    Applicant: CANON ANELVA CORPORATION
    Inventors: Yoshimitsu KODAIRA, Isao TAKEUCHI, Mihoko NAKAMURA
  • Publication number: 20150090583
    Abstract: The present invention has an objective to provide a processing method and an ion beam processing apparatus capable of inhibiting deposition of redeposited films even for fine patterns. In an embodiment of the present invention, ion beam processing is performed such that an etching amount of an ion beam incident in extending directions of pattern trenches formed on a substrate is made larger than the etching amount of the ion beam incident in other directions. This processing enables fine patterns to be processed while inhibiting redeposited films from being deposited on the bottom portions of the trenches of the fine patterns.
    Type: Application
    Filed: December 8, 2014
    Publication date: April 2, 2015
    Inventors: YOSHIMITSU KODAIRA, ISAO TAKEUCHI, MIHOKO NAKAMURA
  • Patent number: 8970213
    Abstract: In a method for manufacturing the functional element, a protective film covering an underlayer, a patterned multilayer film, and a patterned cap layer are formed, and the underlayer is then processed without newly forming a resist. Thereby, an electrode can be formed in steps less than ever before. Since the protective film formed on the patterned multilayer film and the patterned cap layer is used as a mask, the problem of the misregistration can be prevented.
    Type: Grant
    Filed: June 19, 2012
    Date of Patent: March 3, 2015
    Assignee: Canon Anelva Corporation
    Inventors: Tomohiko Toyosato, Mihoko Nakamura, Kazuhiro Kimura, Masayoshi Ikeda
  • Publication number: 20140138347
    Abstract: In a method for manufacturing the functional element, a protective film covering an underlayer, a patterned multilayer film, and a patterned cap layer are formed, and the underlayer is then processed without newly forming a resist. Thereby, an electrode can be formed in steps less than ever before. Since the protective film formed on the patterned multilayer film and the patterned cap layer is used as a mask, the problem of the misregistration can be prevented.
    Type: Application
    Filed: June 19, 2012
    Publication date: May 22, 2014
    Applicant: CANON ANELVA CORPORATION
    Inventors: Tomohiko Toyosato, Mihoko Nakamura, Kazuhiro Kimura, Masayoshi Ikeda