Patents by Inventor Yoshimasa Ooshima

Yoshimasa Ooshima 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: 20120062890
    Abstract: Conventionally, a particle/defect inspection apparatus outputs a total number of detected particles/defects as the result of detection. For taking countermeasures to failures in manufacturing processes, the particles/defects detected by the inspection apparatus are analyzed. Since the inspection apparatus outputs a large number of detected particles/defects, an immense time is required for analyzing the detected particles/defects, resulting in a delay in taking countermeasures to a failure in the manufacturing processes. In the present invention, an apparatus for optically inspecting particles or defects relates a particle or defect size to a cause of failure in an inspection result. A data processing circuit points out a cause of failure from the statistics on the inspection result, and displays information on the inspection result.
    Type: Application
    Filed: November 16, 2011
    Publication date: March 15, 2012
    Applicants: Hitachi High-Technologies Corporation, Hitachi, Ltd.
    Inventors: Hidetoshi Nishiyama, Minori Noguchi, Yoshimasa Ooshima, Akira Hamamatsu, Kenji Watanabe, Tetsuya Watanabe, Takahiro Jingu
  • Patent number: 8072597
    Abstract: Conventionally, a particle/defect inspection apparatus outputs a total number of detected particles/defects as the result of detection. For taking countermeasures to failures in manufacturing processes, the particles/defects detected by the inspection apparatus are analyzed. Since the inspection apparatus outputs a large number of detected particles/defects, an immense time is required for analyzing the detected particles/defects, resulting in a delay in taking countermeasures to a failure in the manufacturing processes. In the present invention, an apparatus for optically inspecting particles or defects relates a particle or defect size to a cause of failure in an inspection result. A data processing circuit points out a cause of failure from the statistics on the inspection result, and displays information on the inspection result.
    Type: Grant
    Filed: June 13, 2008
    Date of Patent: December 6, 2011
    Assignees: Hitachi, Ltd., Hitachi Electronics Engineering Co., Ltd.
    Inventors: Hidetoshi Nishiyama, Minori Noguchi, Yoshimasa Ooshima, Akira Hamamatsu, Kenji Watanabe, Tetsuya Watanabe, Takahiro Jingu
  • Patent number: 7511806
    Abstract: A defect-inspecting apparatus including an arrangement to convert detected light into a first signal corresponding to light illuminated by a high-angle illumination optical system and/or a second signal corresponding to light illuminated by a low-angle illumination optical system; and a classification unit which utilizes the first and second signal and classifies defects on the object to be inspected, wherein a defect size is estimated by changing a correction coefficient of the defect size on a basis of a concave-convex level (b/a), where the concave-convex level (b/a) of a defect is indicated by a ratio of a size b of a first direction of the defect to a size a of a second direction of the defect, where the second direction is lateral to the first direction.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: March 31, 2009
    Assignee: Hitachi High-Tech Electronics Engineering Co., Ltd.
    Inventors: Akira Hamamatsu, Minori Noguchi, Yoshimasa Ooshima, Hidetoshi Nishiyama, Tetsuya Watanabe
  • Publication number: 20080246964
    Abstract: Conventionally, a particle/defect inspection apparatus outputs a total number of detected particles/defects as the result of detection. For taking countermeasures to failures in manufacturing processes, the particles/defects detected by the inspection apparatus are analyzed. Since the inspection apparatus outputs a large number of detected particles/defects, an immense time is required for analyzing the detected particles/defects, resulting in a delay in taking countermeasures to a failure in the manufacturing processes. In the present invention, an apparatus for optically inspecting particles or defects relates a particle or defect size to a cause of failure in an inspection result. A data processing circuit points out a cause of failure from the statistics on the inspection result, and displays information on the inspection result.
    Type: Application
    Filed: June 13, 2008
    Publication date: October 9, 2008
    Applicants: Hitachi, Ltd., Hitachi High-Technologies Corporation
    Inventors: Hidetoshi NISHIYAMA, Minori Noguchi, Yoshimasa Ooshima, Akira Hamamatsu, Kenji Watanabe, Tetsuya Watanabe, Takahiro Jingu
  • Publication number: 20080117415
    Abstract: A defect-inspecting apparatus including an arrangement to convert detected light into a first signal corresponding to light illuminated by a high-angle illumination optical system and/or a second signal corresponding to light illuminated by a low-angle illumination optical system; and a classification unit which utilizes the first and second signal and classifies defects on the object to be inspected, wherein a defect size is estimated by changing a correction coefficient of the defect size on a basis of a concave-convex level (b/a), where the concavo-convex level (b/a) of a defect is indicated by a ratio of a size b of a first direction of the defect to a size a of a second direction of the defect, where the second direction is lateral to the first direction.
    Type: Application
    Filed: October 31, 2007
    Publication date: May 22, 2008
    Inventors: Akira Hamamatsu, Minori Noguchi, Yoshimasa Ooshima, Hidetoshi Nishiyama, Tetsuya Watanabe
  • Patent number: 7315366
    Abstract: A defect-inspecting apparatus including an arrangement to convert detected light into a first signal corresponding to light illuminated by a high-angle illumination optical system and/or a second signal corresponding to light illuminated by a low-angle illumination optical system; and a classification unit which utilizes the first and second signal and classifies defects on the object to be inspected, wherein a defect size is estimated by changing a correction coefficient of the defect size on a basis of a concave-convex level (b/a), where the concavo-convex level (b/a) of a defect is indicated by a ratio of a size b of a first direction of the defect to a size a of a second direction of the defect, where the second direction is lateral to the first direction.
    Type: Grant
    Filed: March 6, 2007
    Date of Patent: January 1, 2008
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Akira Hamamatsu, Minori Noguchi, Yoshimasa Ooshima, Hidetoshi Nishiyama, Tetsuya Watanabe
  • Publication number: 20070257214
    Abstract: Conventionally, a particle/defect inspection apparatus outputs a total number of detected particles/defects as the result of detection. For taking countermeasures to failures in manufacturing processes, the particles/defects detected by the inspection apparatus are analyzed. Since the inspection apparatus outputs a large number of detected particles/defects, an immense time is required for analyzing the detected particles/defects, resulting in a delay in taking countermeasures to a failure in the manufacturing processes. In the present invention, an apparatus for optically inspecting particles or defects relates a particle or defect size to a cause of failure in an inspection result. A data processing circuit points out a cause of failure from the statistics on the inspection result, and displays information on the inspection result.
    Type: Application
    Filed: July 11, 2007
    Publication date: November 8, 2007
    Applicants: Hitachi, Ltd., Hitachi High-Technologies Corporation
    Inventors: Hidetoshi Nishiyama, Minori Noguchi, Yoshimasa Ooshima, Akira Hamamatsu, Kenji Watanabe, Tetsuya Watanabe, Takahiro Jingu
  • Patent number: 7256412
    Abstract: Conventionally, a particle/defect inspection apparatus outputs a total number of detected particles/defects as the result of detection. For taking countermeasures to failures in manufacturing processes, the particles/defects detected by the inspection apparatus are analyzed. Since the inspection apparatus outputs a large number of detected particles/defects, an immense time is required for analyzing the detected particles/defects, resulting in a delay in taking countermeasures to a failure in the manufacturing processes. In the present invention, an apparatus for optically inspecting particles or defects relates a particle or defect size to a cause of failure in an inspection result. A data processing circuit points out a cause of failure from the statistics on the inspection result, and displays information on the inspection result.
    Type: Grant
    Filed: September 5, 2006
    Date of Patent: August 14, 2007
    Assignees: Hitachi, Ltd., Hitachi High-Technologies Corporation
    Inventors: Hidetoshi Nishiyama, Minori Noguchi, Yoshimasa Ooshima, Akira Hamamatsu, Kenji Watanabe, Tetsuya Watanabe, Takahiro Jingu
  • Publication number: 20070153264
    Abstract: A defect-inspecting apparatus including an arrangement to convert detected light into a first signal corresponding to light illuminated by a high-angle illumination optical system and/or a second signal corresponding to light illuminated by a low-angle illumination optical system; and a classification unit which utilizes the first and second signal and classifies defects on the object to be inspected, wherein a defect size is estimated by changing a correction coefficient of the defect size on a basis of a concave-convex level (b/a), where the concavo-convex level (b/a) of a defect is indicated by a ratio of a size b of a first direction of the defect to a size a of a second direction of the defect, where the second direction is lateral to the first direction.
    Type: Application
    Filed: March 6, 2007
    Publication date: July 5, 2007
    Inventors: Akira Hamamatsu, Minori Noguchi, Yoshimasa Ooshima, Hidetoshi Nishiyama, Tetsuya Watanabe
  • Patent number: 7231079
    Abstract: For the purpose of reducing a false report and shortening inspection time, an area to be inspected is locally inspected under optimum inspection conditions. In order to avoid the number of detected defects from increasing explosively, and thereby to facilitate control of a critical defect, general-purpose layout data, which is used for producing a mask of a semiconductor wafer, is accumulated in a design information server 2. With reference to the layout data, an area to be inspected, which is inspected by a pattern inspecting apparatus 1, is divided into partial inspection areas including a cell portion and a non-cell portion. Inspection parameters are set for each of the partial inspection areas. In addition, the defect reviewing apparatus 8 obtains an inspection result of the pattern inspecting apparatus 1.
    Type: Grant
    Filed: January 18, 2002
    Date of Patent: June 12, 2007
    Assignee: Hitachi, Ltd.
    Inventors: Hirohito Okuda, Yuji Takagi, Masahiro Watanabe, Shunji Maeda, Minori Noguchi, Yoshimasa Ooshima, Makoto Ono
  • Patent number: 7187438
    Abstract: The present invention is characterized by the following: incident illumination and oblique illumination are performed on a scratch and a foreign material, which have been made on a surface of a polished or a ground insulating layer, with substantially the same luminous flux; and on the basis of a correlation such as a ratio of intensity of scattered light generated by the shallow scratch and the foreign material between the incident illumination and the oblique illumination, the shallow scratch is discriminated from the foreign material.
    Type: Grant
    Filed: January 18, 2002
    Date of Patent: March 6, 2007
    Assignees: Hitachi, Ltd., Hitachi High-Electronics Corporation
    Inventors: Akira Hamamatsu, Minori Noguchi, Yoshimasa Ooshima, Hidetoshi Nishiyama, Tetsuya Watanabe
  • Publication number: 20070001132
    Abstract: Conventionally, a particle/defect inspection apparatus outputs a total number of detected particles/defects as the result of detection. For taking countermeasures to failures in manufacturing processes, the particles/defects detected by the inspection apparatus are analyzed. Since the inspection apparatus outputs a large number of detected particles/defects, an immense time is required for analyzing the detected particles/defects, resulting in a delay in taking countermeasures to a failure in the manufacturing processes. In the present invention, an apparatus for optically inspecting particles or defects relates a particle or defect size to a cause of failure in an inspection result. A data processing circuit points out a cause of failure from the statistics on the inspection result, and displays information on the inspection result.
    Type: Application
    Filed: September 5, 2006
    Publication date: January 4, 2007
    Applicants: Hitachi, Ltd., Hitachi Electronics Engineering Co., Ltd.
    Inventors: Hidetoshi Nishiyama, Minori Noguchi, Yoshimasa Ooshima, Akira Hamamatsu, Kenji Watanabe, Tetsuya Watanabe, Takahiro Jingu
  • Patent number: 7115892
    Abstract: Conventionally, a particle/defect inspection apparatus outputs a total number of detected particles/defects as the result of detection. For taking countermeasures to failures in manufacturing processes, the particles/defects detected by the inspection apparatus are analyzed. Since the inspection apparatus outputs a large number of detected particles/defects, an immense time is required for analyzing the detected particles/defects, resulting in a delay in taking countermeasures to a failure in the manufacturing processes. In the present invention, an apparatus for optically inspecting particles or defects relates a particle or defect size to a cause of failure in an inspection result. A data processing circuit points out a cause of failure from the statistics on the inspection result, and displays information on the inspection result.
    Type: Grant
    Filed: December 13, 2005
    Date of Patent: October 3, 2006
    Assignees: Hitachi, Ltd., Hitachi High Technologies Corporation
    Inventors: Hidetoshi Nishiyama, Minori Noguchi, Yoshimasa Ooshima, Akira Hamamatsu, Kenji Watanabe, Tetsuya Watanabe, Takahiro Jingu
  • Publication number: 20060091332
    Abstract: Conventionally, a particle/defect inspection apparatus outputs a total number of detected particles/defects as the result of detection. For taking countermeasures to failures in manufacturing processes, the particles/defects detected by the inspection apparatus are analyzed. Since the inspection apparatus outputs a large number of detected particles/defects, an immense time is required for analyzing the detected particles/defects, resulting in a delay in taking countermeasures to a failure in the manufacturing processes. In the present invention, an apparatus for optically inspecting particles or defects relates a particle or defect size to a cause of failure in an inspection result. A data processing circuit points out a cause of failure from the statistics on the inspection result, and displays information on the inspection result.
    Type: Application
    Filed: December 13, 2005
    Publication date: May 4, 2006
    Applicants: Hitachi High-Technologies Corporation, Hitachi, Ltd., Hitachi Electronics Engineering Co., Ltd.
    Inventors: Hidetoshi Nishiyama, Minori Noguchi, Yoshimasa Ooshima, Akira Hamamatsu, Kenji Watanabe, Tetsuya Watanabe, Takahiro Jingu
  • Patent number: 6998630
    Abstract: Conventionally, a particle/defect inspection apparatus outputs a total number of detected particles/defects as the result of detection. For taking countermeasures to failures in manufacturing processes, the particles/defects detected by the inspection apparatus are analyzed. Since the inspection apparatus outputs a large number of detected particles/defects, an immense time is required for analyzing the detected particles/defects, resulting in a delay in taking countermeasures to a failure in the manufacturing processes. In the present invention, an apparatus for optically inspecting particles or defects relates a particle or defect size to a cause of failure in an inspection result. A data processing circuit points out a cause of failure from the statistics on the inspection result, and displays information on the inspection result.
    Type: Grant
    Filed: September 3, 2004
    Date of Patent: February 14, 2006
    Assignee: Hitachi High Technologies Corporation
    Inventors: Hidetoshi Nishiyama, Minori Noguchi, Yoshimasa Ooshima, Akira Hamamatsu, Kenji Watanabe, Tetsuya Watanabe, Takahiro Jingu
  • Publication number: 20050024633
    Abstract: Conventionally, a particle/defect inspection apparatus outputs a total number of detected particles/defects as the result of detection. For taking countermeasures to failures in manufacturing processes, the particles/defects detected by the inspection apparatus are analyzed. Since the inspection apparatus outputs a large number of detected particles/defects, an immense time is required for analyzing the detected particles/defects, resulting in a delay in taking countermeasures to a failure in the manufacturing processes. In the present invention, an apparatus for optically inspecting particles or defects relates a particle or defect size to a cause of failure in an inspection result. A data processing circuit points out a cause of failure from the statistics on the inspection result, and displays information on the inspection result.
    Type: Application
    Filed: September 3, 2004
    Publication date: February 3, 2005
    Applicant: Hitachi, Ltd.
    Inventors: Hidetoshi Nishiyama, Minori Noguchi, Yoshimasa Ooshima, Akira Hamamatsu, Kenji Watanabe, Tetsuya Watanabe, Takahiro Jingu
  • Patent number: 6797975
    Abstract: Conventionally, a particle/defect inspection apparatus outputs a total number of detected particles/defects as the result of detection. For taking countermeasures to failures in manufacturing processes, the particles/defects detected by the inspection apparatus are analyzed. Since the inspection apparatus outputs a large number of detected particles/defects, an immense time is required for analyzing the detected particles/defects, resulting in a delay in taking countermeasures to a failure in the manufacturing processes. In the present invention, an apparatus for optically inspecting particles or defects relates a particle or defect size to a cause of failure in an inspection result. A data processing circuit points out a cause of failure from the statistics on the inspection result, and displays information on the inspection result.
    Type: Grant
    Filed: August 17, 2001
    Date of Patent: September 28, 2004
    Assignee: Hitachi, Ltd.
    Inventors: Hidetoshi Nishiyama, Minori Noguchi, Yoshimasa Ooshima, Akira Hamamatsu, Kenji Watanabe, Tetsuya Watanabe, Takahiro Jingu
  • Publication number: 20020122174
    Abstract: The present invention is characterized by the following: incident illumination and oblique illumination are performed on a scratch and a foreign material, which have been made on a surface of a polished or a ground insulating layer, with substantially the same luminous flux; and on the basis of a correlation such as a ratio of intensity of scattered light generated by the shallow scratch and the foreign material between the incident illumination and the oblique illumination, the shallow scratch is discriminated from the foreign material.
    Type: Application
    Filed: January 18, 2002
    Publication date: September 5, 2002
    Inventors: Akira Hamamatsu, Minori Noguchi, Yoshimasa Ooshima, Hidetoshi Nishiyama, Tetsuya Watanabe
  • Publication number: 20020113234
    Abstract: For the purpose of reducing a false report and shortening inspection time, an area to be inspected is locally inspected under optimum inspection conditions. In order to avoid the number of detected defects from increasing explosively, and thereby to facilitate control of a critical defect, general-purpose layout data, which is used for producing a mask of a semiconductor wafer, is accumulated in a design information server 2. With reference to the layout data, an area to be inspected, which is inspected by a pattern inspecting apparatus 1, is divided into partial inspection areas including a cell portion and a non-cell portion. Inspection parameters are set for each of the partial inspection areas. In addition, the defect reviewing apparatus 8 obtains an inspection result of the pattern inspecting apparatus 1.
    Type: Application
    Filed: January 18, 2002
    Publication date: August 22, 2002
    Inventors: Hirohito Okuda, Yuji Takagi, Masahiro Watanabe, Shunji Maeda, Minori Noguchi, Yoshimasa Ooshima, Makoto Ono
  • Publication number: 20020047097
    Abstract: Conventionally, a particle/defect inspection apparatus outputs a total number of detected particles/defects as the result of detection. For taking countermeasures to failures in manufacturing processes, the particles/defects detected by the inspection apparatus are analyzed. Since the inspection apparatus outputs a large number of detected particles/defects, an immense time is required for analyzing the detected particles/defects, resulting in a delay in taking countermeasures to a failure in the manufacturing processes. In the present invention, an apparatus for optically inspecting particles or defects relates a particle or defect size to a cause of failure in an inspection result. A data processing circuit points out a cause of failure from the statistics on the inspection result, and displays information on the inspection result.
    Type: Application
    Filed: August 17, 2001
    Publication date: April 25, 2002
    Inventors: Hidetoshi Nishiyama, Minori Noguchi, Yoshimasa Ooshima, Akira Hamamatsu, Kenji Watanabe, Tetsuya Watanabe, Takahiro Jingu