Patents by Inventor Mine Nakagawa

Mine Nakagawa 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: 7964845
    Abstract: The charged particle beam device of this invention separately detects secondary signal particles emitted from the surface of a sample, dark field signal particles scattered within and transmitted through the sample, bright field signal particles transmitted through the sample without being scattered within the sample, and thereby allows the operator to observe the image with an optimum contrast according to applications. In order to detect only the dark field transmitted signal particles scattered within the sample, among the transmitted signal particles obtained by the primary charged particle beams having transmitted through the thin film sample, the device includes a transmitted signal conversion member having an opening through which the bright field transmitted signal particles not being scattered within the sample can pass, and a detection means for detecting signals colliding against the conversion member.
    Type: Grant
    Filed: October 20, 2008
    Date of Patent: June 21, 2011
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Yuusuke Tanba, Mitsugu Sato, Kaname Takahashi, Shunya Watanabe, Mine Nakagawa, Atsushi Muto, Akinari Morikawa
  • Publication number: 20090050803
    Abstract: The charged particle beam device of this invention separately detects secondary signal particles emitted from the surface of a sample, dark field signal particles scattered within and transmitted through the sample, bright field signal particles transmitted through the sample without being scattered within the sample, and thereby allows the operator to observe the image with an optimum contrast according to applications. In order to detect only the dark field transmitted signal particles scattered within the sample, among the transmitted signal particles obtained by the primary charged particle beams having transmitted through the thin film sample, the device includes a transmitted signal conversion member having an opening through which the bright field transmitted signal particles not being scattered within the sample can pass, and a detection means for detecting signals colliding against the conversion member.
    Type: Application
    Filed: October 20, 2008
    Publication date: February 26, 2009
    Inventors: Yuusuke Tanba, Mitsugu Sato, Kaname Takahashi, Shunya Watanabe, Mine Nakagawa, Atsushi Muto, Akinari Morikawa
  • Patent number: 7456403
    Abstract: The charged particle beam device of this invention separately detects secondary signal particles emitted from the surface of a sample, dark field signal particles scattered within and transmitted through the sample, bright field signal particles transmitted through the sample without being scattered within the sample, and thereby allows the operator to observe the image with an optimum contrast according to applications. In order to detect only the dark field transmitted signal particles scattered within the sample, among the transmitted signal particles obtained by the primary charged particle beams having transmitted through the thin film sample, the device includes a transmitted signal conversion member having an opening through which the bright field transmitted signal particles not being scattered within the sample can pass, and a detection means for detecting signals colliding against the conversion member.
    Type: Grant
    Filed: October 3, 2005
    Date of Patent: November 25, 2008
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Yuusuke Tanba, Mitsugu Sato, Kaname Takahashi, Shunya Watanabe, Mine Nakagawa, Atsushi Muto
  • Publication number: 20070235645
    Abstract: The charged particle beam device of this invention separately detects secondary signal particles emitted from the surface of a sample, dark field signal particles scattered within and transmitted through the sample, bright field signal particles transmitted through the sample without being scattered within the sample, and thereby allows the operator to observe the image with an optimum contrast according to applications. In order to detect only the dark field transmitted signal particles scattered within the sample, among the transmitted signal particles obtained by the primary charged particle beams having transmitted through the thin film sample, the device includes a transmitted signal conversion member having an opening through which the bright field transmitted signal particles not being scattered within the sample can pass, and a detection means for detecting signals colliding against the conversion member.
    Type: Application
    Filed: October 3, 2005
    Publication date: October 11, 2007
    Inventors: Yuusuke Tanba, Mitsugu Sato, Kaname Takahashi, Shunya Watanabe, Mine Nakagawa, Atsushi Muto
  • Patent number: 6963067
    Abstract: The invention provides a sample observation method capable of understanding the three-dimensional shape of a sample in a wider range. The observation method of the invention calculates heights (height differences) in the whole domain of an image, from plural sheets of images of different field-of-view angles, being in focus over the whole image, attained by means of the focal depth expanding function to thereby create a map (Z map) of the height information by each pixel, and displays a three-dimensional image as a bird's-eye view. The method also displays to superpose a Z map attained from image signals reflecting the surface structure on a Z map attained from image signals reflecting the composition information with different colors, which makes it possible to clearly understand the spatial distribution of a substance of unique composition inside the sample.
    Type: Grant
    Filed: January 5, 2004
    Date of Patent: November 8, 2005
    Assignees: Hitachi High-Technologies Corporation, Hitachi Science Systems, Inc.
    Inventors: Shuichi Takeuchi, Mine Nakagawa, Mitsugu Sato, Atsushi Takane, Kazutaka Nimura
  • Patent number: 6963069
    Abstract: The charged particle beam device of this invention separately detects secondary signal particles emitted from the surface of a sample, dark field signal particles scattered within and transmitted through the sample, bright field signal particles transmitted through the sample without being scattered within the sample, and thereby allows the operator to observe the image with an optimum contrast according to applications. In order to detect only the dark field transmitted signal particles scattered within the sample, among the transmitted signal particles obtained by the primary charged particle beams having transmitted through the thin film sample, the device includes a transmitted signal conversion member having an opening through which the bright field transmitted signal particles not being scattered within the sample can pass, and a detection means for detecting signals colliding against the conversion member.
    Type: Grant
    Filed: January 30, 2004
    Date of Patent: November 8, 2005
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Yuusuke Tanba, Mitsugu Sato, Kaname Takahashi, Shunya Watanabe, Mine Nakagawa, Atsushi Muto, Akinari Morikawa
  • Publication number: 20040238752
    Abstract: The charged particle beam device of this invention separately detects secondary signal particles emitted from the surface of a sample, dark field signal particles scattered within and transmitted through the sample, bright field signal particles transmitted through the sample without being scattered within the sample, and thereby allows the operator to observe the image with an optimum contrast according to applications. In order to detect only the dark field transmitted signal particles scattered within the sample, among the transmitted signal particles obtained by the primary charged particle beams having transmitted through the thin film sample, the device includes a transmitted signal conversion member having an opening through which the bright field transmitted signal particles not being scattered within the sample can pass, and a detection means for detecting signals colliding against the conversion member.
    Type: Application
    Filed: January 30, 2004
    Publication date: December 2, 2004
    Inventors: Yuusuke Tanba, Mitsugu Sato, Kaname Takahashi, Shunya Watanabe, Mine Nakagawa, Atsushi Muto, Akinari Morikawa
  • Publication number: 20040188611
    Abstract: The invention provides a sample observation method capable of understanding the three-dimensional shape of a sample in a wider range. The observation method of the invention calculates heights (height differences) in the whole domain of an image, from plural sheets of images of different field-of-view angles, being in focus over the whole image, attained by means of the focal depth expanding function to thereby create a map (Z map) of the height information by each pixel, and displays a three-dimensional image as a bird's-eye view. The method also displays to superpose a Z map attained from image signals reflecting the surface structure on a Z map attained from image signals reflecting the composition information with different colors, which makes it possible to clearly understand the spatial distribution of a substance of unique composition inside the sample.
    Type: Application
    Filed: January 5, 2004
    Publication date: September 30, 2004
    Inventors: Shuichi Takeuchi, Mine Nakagawa, Mitsugu Sato, Atsushi Takane, Kazutaka Nimura