Patents by Inventor Minoru Harada

Minoru Harada 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: 11670528
    Abstract: Provided is a wafer observation apparatus includes: a scanning electron microscope; a control unit which includes a wafer observation unit that observes a wafer of a semiconductor device, and an image acquisition unit that acquires a wafer image; a storage unit which includes an image storage unit that stores the wafer image and a template image, and a recipe storage unit that stores a wafer alignment recipe including a matching success and failure determination threshold value, an image processing parameter set, and a use priority associated with the template image; and a calculation unit which includes a recipe reading unit that reads the template image and the wafer alignment recipe, a recipe update necessity determination unit that determines update necessity of the wafer alignment recipe, and a recipe updating unit that updates the wafer alignment recipe based on a determination result in the recipe update necessity determination unit.
    Type: Grant
    Filed: June 22, 2020
    Date of Patent: June 6, 2023
    Assignee: HITACHI HIGH-TECH CORPORATION
    Inventors: Naoaki Kondo, Minoru Harada, Yohei Minekawa, Takehiro Hirai
  • Publication number: 20230052350
    Abstract: A defect inspecting system includes a detector configured to image a sample and a host control device that acquires an inspection image including a defect and a plurality of reference images not including a defect site and generates a pseudo defect image by editing a predetermined reference image among the plurality of acquired reference images. An initial parameter is determined with which the pseudo defect site is detectable from the pseudo defect image. The host control device acquires a defect candidate site from the inspection image using the initial parameter, estimates a high-quality image from an image of a site corresponding to the defect candidate site using the parameter acquired in image quality enhancement, and specifies an actual defect site in the inspection image by executing defect discrimination. A parameter is determined with which a site close to the specified actual defect site is detectable using the inspection image.
    Type: Application
    Filed: December 24, 2019
    Publication date: February 16, 2023
    Inventors: Minoru HARADA, Naoaki KONDO, Yohei MINEKAWA
  • Publication number: 20230005123
    Abstract: The invention provides a sample observation system including a scanning electron microscope and a calculator. The calculator: (1) acquires a plurality of images captured by the scanning electron microscope; (2) acquires, from the plurality of images, a learning defect image including a defect portion and a learning reference image not including the defect portion; (3) calculates estimation processing parameters by using the learning defect image and the learning reference image; (4) acquires an inspection defect image including a defect portion; and (5) estimates a pseudo reference image by using the estimation processing parameters and the inspection defect image.
    Type: Application
    Filed: January 8, 2021
    Publication date: January 5, 2023
    Inventors: Naoaki KONDO, Minoru HARADA, Yohei MINEKAWA
  • Publication number: 20220405905
    Abstract: In learning processing performed before sample observation processing (steps S705 to S708), the sample observation device acquires a low-picture quality learning image under a first imaging condition for each defect position indicated by defect position information, determines an imaging count of a plurality of high-picture quality learning images associated with the low-picture quality learning image for each defect position and a plurality of imaging points based on a set value of the imaging count, acquires the plurality of high-picture quality learning images under a second imaging condition (step S702), learns a high-picture quality image estimation model using the low-picture quality learning image and the plurality of high-picture quality learning images (step S703), and adjusts a parameter related to the defect detection in the sample observation processing using the high-picture quality image estimation model (step S704).
    Type: Application
    Filed: June 15, 2022
    Publication date: December 22, 2022
    Inventors: Yuki Doi, Naoaki Kondo, Minoru Harada, Hideki Nakayama, Yohei Minekawa, Yuji Takagi
  • Patent number: 11517359
    Abstract: In order to apply, with a simple and easy means, proper pressure between bone segments spaced apart as a result of osteotomy or a bone fracture, without lowering the fixing force at the screw meshing portion, without increasing a dead space, and without increasing the thickness of the plate, the present invention provides a bone plate having an upper face, which is to be in contact with bone, a lower face, which is to be in contact with the bone, and a plurality of holes arranged to receive bone screws and connecting the upper face and the lower face. In at least one of the holes, a portion of an edge, on the upper face, of the hole is formed so as to be raised in the form of a protrusion higher than the upper face around the hole.
    Type: Grant
    Filed: December 9, 2020
    Date of Patent: December 6, 2022
    Assignee: OLYMPUS TERUMO BIOMATERIALS CORP.
    Inventors: Koichi Kuroda, Yasuharu Yokoyama, Tomohiko Fukuhara, Masaki Atarashi, Kitaru Suzuki, Minoru Harada, Toshihisa Iwanaga, Mitsuya Urata
  • Patent number: 11260493
    Abstract: A substrate processing apparatus which causes a processing tape to abut against a processing object, including: a tape supply reel configured to supply the processing tape; a tape recovery reel configured to recover the processing tape; a recovery motor configured to apply a torque to the tape recovery reel; a tape feed motor configured to feed the processing tape between the tape supply reel and the tape recovery reel; and a control unit configured to control the tape feed motor, wherein the control unit controls the torque of the recovery motor depending on a change in an outer diameter of a roll of the processing tape wound by the tape recovery reel such that tension applied to the processing tape is constant, using a feed length of the tape fed by the tape feed motor and a thickness of the processing tape.
    Type: Grant
    Filed: January 11, 2019
    Date of Patent: March 1, 2022
    Assignee: EBARA CORPORATION
    Inventors: Minoru Harada, Takahiro Nanjo, Hiroyuki Takenaka, Naoki Matsuda
  • Patent number: 11177111
    Abstract: A defect observation device is configured to include a charged particle microscope and a controller including a control unit that controls the charged particle microscope, a storage unit, and an arithmetic unit, in which the control unit controls the charged particle microscope under a first condition to acquire a first image of an observation target region of the sample, the arithmetic unit extracts first position information of the observation target region from the obtained first image, the control unit controls the charged particle microscope under a second condition to acquire a second image of the observation target region of the sample, and the arithmetic unit performs an image quality conversion process to match the image quality of the acquired second image with the image quality of the first image using the image quality conversion process parameters to process the second image subjected to the image quality conversion process.
    Type: Grant
    Filed: March 20, 2020
    Date of Patent: November 16, 2021
    Assignee: HITACHI HIGH-TECH CORPORATION
    Inventors: Akira Ito, Minoru Harada, Yohei Minekawa, Takehiro Hirai
  • Patent number: 11170483
    Abstract: A sample observation device images a sample placed on a movable table by irradiating and scanning the sample with a charged particle beam of a microscope. A degraded image having poor image quality and a high quality image having satisfactory image quality which are acquired at the same location of the sample by causing the charged particle microscope to change an imaging condition for imaging the sample are stored. An estimation process parameter is calculated for estimating the high quality image from the degraded image by using the stored degraded image and high quality image. A high quality image estimation unit processes the degraded image obtained by causing the charged particle microscope to image the desired site of the sample by using the calculated estimation process parameter. Thereby, the high quality image obtained at the desired site is estimated, and then the estimated high quality image is output.
    Type: Grant
    Filed: December 18, 2019
    Date of Patent: November 9, 2021
    Assignee: HITACHI HIGH-TECH CORPORATION
    Inventors: Minoru Harada, Yuji Takagi, Naoaki Kondo, Takehiro Hirai
  • Patent number: 11087454
    Abstract: A defect observation device comprising: a defect determination coordinate creation unit by which the coordinates of a plurality of second defect candidates are determined as overlapping defect candidate coordinates, the plurality of second defect candidates respectively having, in a plurality of second imaging visual field regions overlapping a first imaging visual field region, a circuit pattern which partly overlaps a circuit pattern in the first imaging visual field region, in which a first defect candidate for defect determination among a plurality of defect candidates of a sample is present; a pseudo-reference image generation unit which generates a pseudo-reference image including a circuit pattern of the first defect candidate by superimposing a plurality of images respectively captured at the plurality of overlapping defect candidate coordinates; and a defect determination unit which compares an image for defect determination captured at the coordinates of the first defect candidate with the pseudo-re
    Type: Grant
    Filed: March 17, 2017
    Date of Patent: August 10, 2021
    Assignee: HITACHI HIGH-TECH CORPORATION
    Inventors: Naoaki Kondo, Minoru Harada, Yuji Takagi, Takehiro Hirai
  • Publication number: 20210177473
    Abstract: In order to apply, with a simple and easy means, proper pressure between bone segments spaced apart as a result of osteotomy or a bone fracture, without lowering the fixing force at the screw meshing portion, without increasing a dead space, and without increasing the thickness of the plate, the present invention provides a bone plate having an upper face, which is to be in contact with bone, a lower face, which is to be in contact with the bone, and a plurality of holes arranged to receive bone screws and connecting the upper face and the lower face. In at least one of the holes, a portion of an edge, on the upper face, of the hole is formed so as to be raised in the form of a protrusion higher than the upper face around the hole.
    Type: Application
    Filed: December 9, 2020
    Publication date: June 17, 2021
    Applicant: OLYMPUS TERUMO BIOMATERIALS CORP.
    Inventors: Koichi KURODA, Yasuharu YOKOYAMA, Tomohiko FUKUHARA, Masaki ATARASHI, Kitaru SUZUKI, Minoru HARADA, Toshihisa IWANAGA, Mitsuya URATA
  • Patent number: 10977786
    Abstract: A versatile template generation unit cuts a first region in which a similarity level to a template image is a first similarity level and a second region in which the similarity level to the template image is a second similarity level different from the first similarity level, from an input image including an alignment mark, to generate a versatile template image.
    Type: Grant
    Filed: January 30, 2019
    Date of Patent: April 13, 2021
    Assignee: HITACHI HIGH-TECH CORPORATION
    Inventors: Naoaki Kondo, Minoru Harada, Yuji Takagi, Takehiro Hirai
  • Patent number: 10971325
    Abstract: In a device for observing a semiconductor wafer, a positional relationship between an in-wafer region and a background region in an imaging field of view is not constant when an outer peripheral portion of the wafer is imaged, which results in an increase in the quantity of calculation in defect detection and image classification processing and makes it difficult to efficiently perform defect observation and analysis. There is provided a defect observation system for a semiconductor wafer, and the system includes: a stage on which the semiconductor wafer is placed and which is movable in an XY direction, an imaging unit that is configured to image a portion including an edge of the semiconductor wafer, and an image output unit that is configured to, with respect to a plurality of images obtained by imaging, output images in which edges of the wafer are substantially in parallel among the plurality of images.
    Type: Grant
    Filed: September 11, 2019
    Date of Patent: April 6, 2021
    Assignee: HITACHI HIGH-TECH CORPORATION
    Inventors: Minoru Harada, Yuji Takagi, Naoaki Kondo, Takehiro Hirai, Yohei Minekawa
  • Publication number: 20200411345
    Abstract: Provided is a wafer observation apparatus includes: a scanning electron microscope; a control unit which includes a wafer observation unit that observes a wafer of a semiconductor device, and an image acquisition unit that acquires a wafer image; a storage unit which includes an image storage unit that stores the wafer image and a template image, and a recipe storage unit that stores a wafer alignment recipe including a matching success and failure determination threshold value, an image processing parameter set, and a use priority associated with the template image; and a calculation unit which includes a recipe reading unit that reads the template image and the wafer alignment recipe, a recipe update necessity determination unit that determines update necessity of the wafer alignment recipe, and a recipe updating unit that updates the wafer alignment recipe based on a determination result in the recipe update necessity determination unit.
    Type: Application
    Filed: June 22, 2020
    Publication date: December 31, 2020
    Inventors: Naoaki Kondo, Minoru Harada, Yohei Minekawa, Takehiro Hirai
  • Publication number: 20200335300
    Abstract: A defect observation device is configured to include a charged particle microscope and a controller including a control unit that controls the charged particle microscope, a storage unit, and an arithmetic unit, in which the control unit controls the charged particle microscope under a first condition to acquire a first image of an observation target region of the sample, the arithmetic unit extracts first position information of the observation target region from the obtained first image, the control unit controls the charged particle microscope under a second condition to acquire a second image of the observation target region of the sample, and the arithmetic unit performs an image quality conversion process to match the image quality of the acquired second image with the image quality of the first image using the image quality conversion process parameters to process the second image subjected to the image quality conversion process.
    Type: Application
    Filed: March 20, 2020
    Publication date: October 22, 2020
    Inventors: Akira ITO, Minoru HARADA, Yohei MINEKAWA, Takehiro HIRAI
  • Patent number: 10810733
    Abstract: Provided is a defect classification apparatus classifying images of defects of a sample included in images obtained by capturing the sample, the apparatus including an image storage unit for storing the images of the sample acquired by an external image acquisition unit, a defect class storage unit for storing types of defects included in the images of the sample, an image processing unit for extracting images of defects from the images from the sample, processing the extracted images of defects and generating a plurality of defect images, a classifier learning unit for learning a defect classifier using the images of defects of the sample extracted by the image processing unit and data of the plurality of generated defect images, and a defect classification unit for processing the images of the sample by using the classifier learned by the classifier learning unit, to classify the images of defects of the sample.
    Type: Grant
    Filed: May 24, 2016
    Date of Patent: October 20, 2020
    Assignee: HITACHI HIGH-TECH CORPORATION
    Inventors: Naoaki Kondo, Takehiro Hirai, Minoru Harada, Yuji Takagi
  • Patent number: 10783625
    Abstract: A method for measuring overlay at a semiconductor device on which circuit patterns are formed by a plurality of exposure processes is characterized in including an image capturing step for capturing images of a plurality of areas of the semiconductor device, a reference image setting step for setting a reference image based on a plurality of the images captured in the image capturing step, a difference quantifying step for quantifying a difference between the reference image set in the reference image setting step and the plurality of images captured in the image capturing step, and an overlay calculating step for calculating the overlay based on the difference quantified in the difference quantifying step.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: September 22, 2020
    Assignee: HITACHI HIGH-TECH CORPORATION
    Inventors: Minoru Harada, Ryo Nakagaki, Fumihiko Fukunaga, Yuji Takagi
  • Publication number: 20200126201
    Abstract: A sample observation device images a sample placed on a movable table by irradiating and scanning the sample with a charged particle beam of a microscope. A degraded image having poor image quality and a high quality image having satisfactory image quality which are acquired at the same location of the sample by causing the charged particle microscope to change an imaging condition for imaging the sample are stored. An estimation process parameter is calculated for estimating the high quality image from the degraded image by using the stored degraded image and high quality image. A high quality image estimation unit processes the degraded image obtained by causing the charged particle microscope to image the desired site of the sample by using the calculated estimation process parameter. Thereby, the high quality image obtained at the desired site is estimated, and then the estimated high quality image is output.
    Type: Application
    Filed: December 18, 2019
    Publication date: April 23, 2020
    Inventors: Minoru HARADA, Yuji TAKAGI, Naoaki KONDO, Takehiro HIRAI
  • Publication number: 20200083017
    Abstract: In a device for observing a semiconductor wafer, a positional relationship between an in-wafer region and a background region in an imaging field of view is not constant when an outer peripheral portion of the wafer is imaged, which results in an increase in the quantity of calculation in defect detection and image classification processing and makes it difficult to efficiently perform defect observation and analysis. There is provided a defect observation system for a semiconductor wafer, and the system includes: a stage on which the semiconductor wafer is placed and which is movable in an XY direction, an imaging unit that is configured to image a portion including an edge of the semiconductor wafer, and an image output unit that is configured to, with respect to a plurality of images obtained by imaging, output images in which edges of the wafer are substantially in parallel among the plurality of images.
    Type: Application
    Filed: September 11, 2019
    Publication date: March 12, 2020
    Inventors: Minoru HARADA, Yuji TAKAGI, Naoaki KONDO, Takehiro HIRAI, Yohei MINEKAWA
  • Patent number: 10559074
    Abstract: A sample observation device images a sample placed on a movable table by irradiating and scanning the sample with a charged particle beam of a microscope. A degraded image having poor image quality and a high quality image having satisfactory image quality which are acquired at the same location of the sample by causing the charged particle microscope to change an imaging condition for imaging the sample are stored. An estimation process parameter is calculated for estimating the high quality image from the degraded image by using the stored degraded image and high quality image. A high quality image estimation unit processes the degraded image obtained by causing the charged particle microscope to image the desired site of the sample by using the calculated estimation process parameter. Thereby, the high quality image obtained at the desired site is estimated, and then the estimated high quality image is output.
    Type: Grant
    Filed: February 16, 2018
    Date of Patent: February 11, 2020
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Minoru Harada, Yuji Takagi, Naoaki Kondo, Takehiro Hirai
  • Publication number: 20200034957
    Abstract: A defect observation device comprising: a defect determination coordinate creation unit by which the coordinates of a plurality of second defect candidates are determined as overlapping defect candidate coordinates, the plurality of second defect candidates respectively having, in a plurality of second imaging visual field regions overlapping a first imaging visual field region, a circuit pattern which partly overlaps a circuit pattern in the first imaging visual field region, in which a first defect candidate for defect determination among a plurality of defect candidates of a sample is present; a pseudo-reference image generation unit which generates a pseudo-reference image including a circuit pattern of the first defect candidate by superimposing a plurality of images respectively captured at the plurality of overlapping defect candidate coordinates; and a defect determination unit which compares an image for defect determination captured at the coordinates of the first defect candidate with the pseudo-re
    Type: Application
    Filed: March 17, 2017
    Publication date: January 30, 2020
    Inventors: Naoaki KONDO, Minoru HARADA, Yuji TAKAGI, Takehiro HIRAI