Patents by Inventor Chihiro IDA

Chihiro IDA 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: 20240055223
    Abstract: An inspection device includes an emission unit of first charging particles. A deflection unit deflects the first charging particles to scan a surface of a target object with the first charging particles. A detection unit detects second charging particles generated from the surface of the target object receiving the first charging particles. An image generation unit generates an image of the surface of the target object based on a detection result of the second charging particles by the detection unit. A control unit controls a scan direction of the first charging particles. A calculation unit detects normal directions to a contour of an uneven portion on the surface of the target object in a first image obtained by scanning in a first scan direction. The calculation unit calculates a frequency of a first angle formed between a reference axis of the first image and a normal direction of each of a plurality of unit regions.
    Type: Application
    Filed: December 8, 2022
    Publication date: February 15, 2024
    Applicant: Kioxia Corporation
    Inventor: Chihiro IDA
  • Patent number: 11715189
    Abstract: A semiconductor image processing apparatus has an image input unit inputs a first semiconductor image, an exposure condition input unit configured to input exposure conditions, a generator performs a process of extracting a feature amount in consideration of the exposure conditions while reducing resolution of the first semiconductor image and thereafter use the extracted feature amount to increase the resolution to generate a second semiconductor image, and a discriminator configured to discriminate whether the input image is the second semiconductor image or a third semiconductor image provided in advance. The generator performs learning so that the discriminator erroneously discriminates the second semiconductor image as the third semiconductor image based on a result discriminated by the discriminator.
    Type: Grant
    Filed: July 20, 2020
    Date of Patent: August 1, 2023
    Assignee: Kioxia Corporation
    Inventors: Atsushi Nakajima, Youyang Ng, Yuko Kono, Takuji Ohashi, Chihiro Ida
  • Patent number: 11302513
    Abstract: An electron microscope apparatus includes a detection unit that detects reflected electrons reflected from a sample when the sample is irradiated with primary electrons emitted by a primary electron generation unit (electron gun), an image generation unit that generates an image of a surface of the sample with the reflected electrons based on output from the detection unit, and a processing unit that generates a differential waveform signal of the image generated by the image generation unit, processes the image by using information of the differential waveform signal, and measures a dimension of a pattern formed on the sample.
    Type: Grant
    Filed: April 5, 2019
    Date of Patent: April 12, 2022
    Assignee: HITACHI HIGH-TECH CORPORATION
    Inventors: Takahiro Nishihata, Mayuka Osaki, Takuma Yamamoto, Akira Hamaguchi, Yusuke Iida, Chihiro Ida
  • Publication number: 20210027457
    Abstract: A semiconductor image processing apparatus has an image input unit inputs a first semiconductor image, an exposure condition input unit configured to input exposure conditions, a generator performs a process of extracting a feature amount in consideration of the exposure conditions while reducing resolution of the first semiconductor image and thereafter use the extracted feature amount to increase the resolution to generate a second semiconductor image, and a discriminator configured to discriminate whether the input image is the second semiconductor image or a third semiconductor image provided in advance. The generator performs learning so that the discriminator erroneously discriminates the second semiconductor image as the third semiconductor image based on a result discriminated by the discriminator.
    Type: Application
    Filed: July 20, 2020
    Publication date: January 28, 2021
    Applicant: Kioxia Corporation
    Inventors: Atsushi NAKAJIMA, Youyang NG, Yuko Kono, Takuji Ohashi, Chihiro Ida
  • Publication number: 20210012998
    Abstract: An electron microscope apparatus includes a detection unit that detects reflected electrons reflected from a sample when the sample is irradiated with primary electrons emitted by a primary electron generation unit (electron gun), an image generation unit that generates an image of a surface of the sample with the reflected electrons based on output from the detection unit, and a processing unit that generates a differential waveform signal of the image generated by the image generation unit, processes the image by using information of the differential waveform signal, and measures a dimension of a pattern formed on the sample.
    Type: Application
    Filed: April 5, 2019
    Publication date: January 14, 2021
    Inventors: Takahiro Nishihata, Mayuka Osaki, Takuma Yamamoto, Akira Hamaguchi, Yusuke Iida, Chihiro Ida
  • Patent number: 10854419
    Abstract: According to one embodiment, a contour extraction method for extracting a contour of a target object from an image obtained using an electron beam includes: extracting the contour of the target object from a backscattered electron image; creating a dictionary for associating a secondary electron image obtained from a portion common to the backscattered electron image with the contour; calculating a likelihood of the contour of the target object in a plurality of positions of a newly obtained secondary electron image by referencing the dictionary regarding the newly obtained secondary electron image; and setting a route along which a total sum of the likelihood is maximized out of the plurality of positions as the contour of the target object.
    Type: Grant
    Filed: February 27, 2019
    Date of Patent: December 1, 2020
    Assignee: TOSHIBA MEMORY CORPORATION
    Inventors: Chihiro Ida, Yukinobu Sakata
  • Publication number: 20200083019
    Abstract: According to one embodiment, a contour extraction method for extracting a contour of a target object from an image obtained using an electron beam includes: extracting the contour of the target object from a backscattered electron image; creating a dictionary for associating a secondary electron image obtained from a portion common to the backscattered electron image with the contour; calculating a likelihood of the contour of the target object in a plurality of positions of a newly obtained secondary electron image by referencing the dictionary regarding the newly obtained secondary electron image; and setting a route along which a total sum of the likelihood is maximized out of the plurality of positions as the contour of the target object.
    Type: Application
    Filed: February 27, 2019
    Publication date: March 12, 2020
    Applicant: TOSHIBA MEMORY CORPORATION
    Inventors: Chihiro IDA, Yukinobu SAKATA