Patents by Inventor Akiyuki Sugiyama
Akiyuki Sugiyama 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).
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Publication number: 20230314350Abstract: Provided is a technology that can reduce the work burden of setting measurement conditions for each circuit pattern when the same measurement procedure is performed on a plurality of circuit patterns formed on a semiconductor material. A measurement system according to the present disclosure sets a measurement point set in a reference circuit pattern for another circuit pattern having the same circuit pattern, applies inversion or rotation to the measurement point, and performs setting on the other circuit pattern, when the circuit pattern has a circuit pattern obtained by vertically inverting, horizontally inverting, or rotating a circuit pattern the same as the reference circuit pattern.Type: ApplicationFiled: March 30, 2023Publication date: October 5, 2023Inventor: Akiyuki SUGIYAMA
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Patent number: 10732512Abstract: An image processor, a method for generating a pattern using self-organizing lithographic techniques, and a computer program are provided to achieve image processing suitable for addressing a sample generated by patterning using Directed Self-Assembly (DSA), and the processor, method, and computer program are characterized in that a template for addressing is prepared on the basis of guide pattern data used for patterning by DSA. The above configuration makes it possible to provide an addressing pattern suitable for visual field positioning in measuring or inspecting a pattern formed through the patterning process using DSA.Type: GrantFiled: February 23, 2018Date of Patent: August 4, 2020Assignee: Hitachi High-Tech CorporationInventors: Takumichi Sutani, Miki Isawa, Shunsuke Koshihara, Akiyuki Sugiyama
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Patent number: 10545018Abstract: The purpose of the present invention is to provide a pattern measurement device which adequately evaluates a pattern formed by means of a patterning method for forming a pattern that is not in a photomask. In order to fulfil the purpose, the present invention suggests a pattern measurement device provided with a computation device for measuring the dimensions between patterns formed on a sample, wherein: the centroid of the pattern formed on the sample is extracted from data to be measured obtained by irradiating beams; a position alignment process is executed between the extracted centroid and measurement reference data in which a reference functioning as the measurement start point or measurement end point is set; and the dimensions between the measurement start point or the measurement end point of the measurement reference data, which was subjected to position alignment, and the edge or the centroid of the pattern contained in the data to be measured is measured.Type: GrantFiled: November 17, 2014Date of Patent: January 28, 2020Assignee: Hitachi High-Technologies CorporationInventors: Satoru Yamaguchi, Norio Hasegawa, Akiyuki Sugiyama, Miki Isawa, Akihiro Onizawa, Ryuji Mitsuhashi
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Publication number: 20180181009Abstract: An image processor, a method for generating a pattern using self-organizing lithographic techniques, and a computer program are provided to achieve image processing suitable for addressing a sample generated by patterning using Directed Self-Assembly (DSA), and the processor, method, and computer program are characterized in that a template for addressing is prepared on the basis of guide pattern data used for patterning by DSA. The above configuration makes it possible to provide an addressing pattern suitable for visual field positioning in measuring or inspecting a pattern formed through the patterning process using DSA.Type: ApplicationFiled: February 23, 2018Publication date: June 28, 2018Inventors: Takumichi SUTANI, Miki ISAWA, Shunsuke KOSHIHARA, Akiyuki SUGIYAMA
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Patent number: 9804107Abstract: The purpose of the present invention is to provide a pattern measurement device for quantitatively evaluating a pattern formed using a directed self-assembly (DSA) method with high accuracy. The present invention is a pattern measurement device for measuring distances between patterns formed in a sample, wherein the centroids of a plurality of patterns included in an image are determined; the inter-centroid distances, and the like, of the plurality of centroids are determined; and on the basis of the inter-centroid distances, and the like, of the plurality of centroids, a pattern meeting a specific condition is distinguished from patterns different from the pattern meeting the specific condition or information is calculated about the number of the patterns meeting the specific condition, the size of an area including the patterns meeting the specific condition, and the number of imaginary lines between the patterns meeting the specific condition.Type: GrantFiled: November 17, 2014Date of Patent: October 31, 2017Assignee: Hitachi High-Technologies CorporationInventors: Akiyuki Sugiyama, Miki Isawa, Satoru Yamaguchi, Motonobu Hommi
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Patent number: 9704235Abstract: When the lengths of FEM wafers are automatically measured, not only the sizes of targets, the lengths of which are to be measured, are often varied from those in registration, but also the patterns of the targets are often deformed. Therefore, it is difficult to automatically determine whether the length measurement is possible or not. Therefore, the following are executed with a semiconductor inspection system: (1) a process of identifying the position of the contour line of an inspected image using a distance image calculated from a reference image, (2) a process of calculating a defect size image based on the position of the contour line with respect to the identified distance image, and detecting a defect candidate from the defect size image, and (3-1) a process of, upon detection of the defect candidate, calculating the size of the detected defect candidate, or (3-2) a process of detecting a portion different between the first and second contour lines as the defect candidate.Type: GrantFiled: July 20, 2012Date of Patent: July 11, 2017Assignee: HITACHI HIGH-TECHNOLOGIES CORPORATIONInventors: Akiyuki Sugiyama, Yuichi Abe
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Publication number: 20160320182Abstract: The purpose of the present invention is to provide a pattern measurement device which adequately evaluates a pattern formed by means of a patterning method for forming a pattern that is not in a photomask. In order to fulfil the purpose, the present invention suggests a pattern measurement device provided with a computation device for measuring the dimensions between patterns formed on a sample, wherein: the centroid of the pattern formed on the sample is extracted from data to be measured obtained by irradiating beams; a position alignment process is executed between the extracted centroid and measurement reference data in which a reference functioning as the measurement start point or measurement end point is set; and the dimensions between the measurement start point or the measurement end point of the measurement reference data, which was subjected to position alignment, and the edge or the centroid of the pattern contained in the data to be measured is measured.Type: ApplicationFiled: November 17, 2014Publication date: November 3, 2016Inventors: Satoru YAMAGUCHI, Norio HASEGAWA, Akiyuki SUGIYAMA, Miki ISAWA, Akihiro ONIZAWA, Ryuji MITSUHASHI
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Publication number: 20160313266Abstract: The purpose of the present invention is to provide a pattern measurement device for quantitatively evaluating a pattern formed using a directed self-assembly (DSA) method with high accuracy. The present invention is a pattern measurement device for measuring distances between patterns formed in a sample, wherein the centroids of a plurality of patterns included in an image are determined; the inter-centroid distances, and the like, of the plurality of centroids are determined; and on the basis of the inter-centroid distances, and the like, of the plurality of centroids, a pattern meeting a specific condition is distinguished from patterns different from the pattern meeting the specific condition or information is calculated about the number of the patterns meeting the specific condition, the size of an area including the patterns meeting the specific condition, and the number of imaginary lines between the patterns meeting the specific condition.Type: ApplicationFiled: November 17, 2014Publication date: October 27, 2016Inventors: Akiyuki SUGIYAMA, Miki ISAWA, Satoru YAMAGUCHI, Motonobu HOMMI
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Publication number: 20150277237Abstract: An image processor, a method for generating a pattern using self-organizing lithographic techniques, and a computer program are provided to achieve image processing suitable for addressing a sample generated by patterning using Directed Self-Assembly (DSA), and the processor, method, and computer program are characterized in that a template for addressing is prepared on the basis of guide pattern data used for patterning by DSA. The above configuration makes it possible to provide an addressing pattern suitable for visual field positioning in measuring or inspecting a pattern formed through the patterning process using DSA.Type: ApplicationFiled: November 14, 2013Publication date: October 1, 2015Inventors: Takumichi Sutani, Miki Isawa, Shunsuke Koshihara, Akiyuki Sugiyama
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Patent number: 8867818Abstract: Disclosed is a method wherein a template for template matching is created with high accuracy and high efficiency. With respect to each individual pattern constituting a basic circuit, pattern information regarding a plurality of layers in a semiconductor device is stored in a library. On the basis of the designation of the position and the layer, pattern information regarding the designated position and layer is extracted from the pattern information stored in the library. A template is created on the basis of the extracted pattern information.Type: GrantFiled: July 15, 2010Date of Patent: October 21, 2014Assignee: Hitachi High-Technologies CorporationInventors: Ryoichi Matsuoka, Akiyuki Sugiyama, Yasutaka Toyoda
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Publication number: 20140219545Abstract: When the lengths of FEM wafers are automatically measured, not only the sizes of targets, the lengths of which are to be measured, are often varied from those in registration, but also the patterns of the targets are often deformed. Therefore, it is difficult to automatically determine whether the length measurement is possible or not. Therefore, the following are executed with a semiconductor inspection system: (1) a process of identifying the position of the contour line of an inspected image using a distance image calculated from a reference image, (2) a process of calculating a defect size image based on the position of the contour line with respect to the identified distance image, and detecting a defect candidate from the defect size image, and (3-1) a process of, upon detection of the defect candidate, calculating the size of the detected defect candidate, or (3-2) a process of detecting a portion different between the first and second contour lines as the defect candidate.Type: ApplicationFiled: July 20, 2012Publication date: August 7, 2014Applicant: HITACHI HIGH-TECHNOLOGIES CORPORATIONInventors: Akiyuki Sugiyama, Yuichi Abe
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Patent number: 8788242Abstract: It is the object of the present invention to provide a pattern measurement apparatus which suitably evaluates a pattern formed by a double patterning method prior to a transfer using masks or which suitably evaluates a deviation of patterns formed by the double patterning method. To achieve the object, a pattern measurement apparatus is proposed which performs an exposure simulation on data about contour lines obtained by converting the pattern edges of first and mask images formed based on charged-particle beam irradiation of the two masks used for subsequent double exposure and which overlaps two exposure-simulated contour lines based on the coordinate information of design data about the masks. Furthermore, a pattern dimension measuring apparatus is proposed which sets measurement conditions using a charged-particle beam based on the positional information about parts or portions separated for double exposure.Type: GrantFiled: February 3, 2010Date of Patent: July 22, 2014Assignee: Hitachi High-Technologies CorporationInventors: Ryoichi Matsuoka, Akiyuki Sugiyama, Yasutaka Toyota
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Patent number: 8577124Abstract: A pattern inspection apparatus can be provided, for example, in a scanning electron microscope system. When patterns of a plurality of layers are included in a SEM image, the apparatus separates the patterns according to each layer by using design data of the plurality of layers corresponding to the patterns. Consequently, the apparatus can realize inspection with use of only the pattern of a target layer to be inspected, pattern inspection differently for different layers, or detection of a positional offset between the layers.Type: GrantFiled: January 5, 2012Date of Patent: November 5, 2013Assignee: Hitachi High-Technologies CorporationInventors: Yasutaka Toyoda, Akiyuki Sugiyama, Ryoichi Matsuoka, Takumichi Sutani, Hidemitsu Naya
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Patent number: 8515153Abstract: A scanning electron microscope comprises an image processing system for carrying out a pattern matching between a first image and a second image. The image processing system comprises: a paint-divided image generator for generating a paint divided image based on the first image; a gravity point distribution image generator for carrying out a smoothing process of the paint divided image and generating a gravity point distribution image; an edge line segment group generation unit for generating a group of edge line segments based on the second image; a matching score calculation unit for calculating a matching score based on the gravity point distribution image and the group of edge line segments; and a maximum score position detection unit for detecting a position where the matching score becomes the maximum.Type: GrantFiled: December 21, 2011Date of Patent: August 20, 2013Assignee: Hitachi High-Technologies CorporationInventors: Akiyuki Sugiyama, Hiroyuki Shindo
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Patent number: 8507856Abstract: A pattern measuring method and device are provided which set a reference position for a measuring point to be measured by a scanning electron microscope and the like, based on position information of a reference pattern on an image acquired from the scanning electron microscope and based on a positional relation, detected by using design data, between the measuring point and the reference pattern formed at a position isolated from the measuring point.Type: GrantFiled: April 26, 2012Date of Patent: August 13, 2013Assignee: Hitachi High-Technologies CorporationInventors: Takumichi Sutani, Ryoichi Matsuoka, Hidetoshi Morokuma, Hitoshi Komuro, Akiyuki Sugiyama
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Patent number: 8445871Abstract: Mutual compatibility is established between the measurement with a high magnification and the measurement in a wide region. A pattern measurement apparatus is proposed which adds identification information to each of fragments that constitute a pattern within an image obtained by the SEM, and which stores the identification information in a predetermined storage format. Here, the identification information is added to each fragment for distinguishing between one fragment and another fragment. According to the above-described configuration, it turns out that the identification information is added to each fragment on the SEM image which has possessed no specific identification information originally. As a result, it becomes possible to implement the SEM-image management based on the identification information.Type: GrantFiled: April 20, 2010Date of Patent: May 21, 2013Assignee: Hitachi High-Technologies CorporationInventors: Ryoichi Matsuoka, Akihiro Onizawa, Akiyuki Sugiyama, Hidetoshi Morokuma, Yasutaka Toyoda
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Patent number: 8355562Abstract: A pattern shape evaluation method and semiconductor inspection system having a unit for extracting contour data of a pattern from an image obtained by photographing a semiconductor pattern, a unit for generating pattern direction data from design data of the semiconductor pattern, and a unit for detecting a defect of a pattern, through comparison between pattern direction data obtained from the contour data and pattern direction data generated from the design data corresponding to a pattern position of the contour data.Type: GrantFiled: August 15, 2008Date of Patent: January 15, 2013Assignee: Hitachi High-Technologies CorporationInventors: Yasutaka Toyoda, Ryoichi Matsuoka, Akiyuki Sugiyama
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Patent number: 8338804Abstract: One of principal objects of the present invention is to provide a sample dimension measuring method for detecting the position of an edge of a two-dimensional pattern constantly with the same accuracy irrespective of the direction of the edge and a sample dimension measuring apparatus. According to this invention, to accomplish the above object, it is proposed to correct the change of a signal waveform of secondary electrons which depends on the direction of scanning of an electron beam relative to the direction of a pattern edge of an inspection objective pattern. It is proposed that when changing the scanning direction of the electron beam in compliance with the direction of a pattern to be measured, errors in the scanning direction and the scanning position are corrected. In this configuration, a sufficient accuracy of edge detection can be obtained irrespective of the scanning direction of the electron beam.Type: GrantFiled: March 7, 2011Date of Patent: December 25, 2012Assignee: Hitachi High-Technologies CorporationInventors: Hidetoshi Morokuma, Akiyuki Sugiyama, Ryoichi Matsuoka, Takumichi Sutani, Yasutaka Toyoda
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Patent number: 8311314Abstract: An object of the present invention is to provide a sample measuring method and a sample measuring device suitable for evaluation of inclination of a pattern edge. To achieve the object, a method and a device for forming a plurality of contours of a pattern edge and evaluating the dimension between the contours are proposed below. Forming a plurality of contours allows evaluation of the degree of inclination of an edge portion of a pattern. Further, displaying evaluation values indicative of the degree of the inclination of the edge portion in an in-plane distribution form makes identifying the cause of taper formation easier.Type: GrantFiled: February 25, 2009Date of Patent: November 13, 2012Assignee: Hitachi High-Technologies CorporationInventors: Ryoichi Matsuoka, Akiyuki Sugiyama
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Patent number: 8285056Abstract: A matching degree computing apparatus is provided for comparing an input image and an object template image and computing a matching degree between an input image and an object template image based on the compared result. The computing apparatus includes a transforming unit for transforming the input image so as to be matched to the template object region and a computing unit for computing a matching degree between the transformed input image and the template image. The transforming unit provides a shaping unit for shaping a non-background region to the form of the template object region in the object corresponding region of the input image and a processing unit for arranging the non-background region contacting with the template object corresponding region so that the non-background region has no substantial impact on the matching degree in the object non-corresponding region of the input image.Type: GrantFiled: March 11, 2009Date of Patent: October 9, 2012Assignee: Hitachi High-Technologies CorporationInventors: Junichi Taguchi, Mitsuji Ikeda, Osamu Komuro, Akiyuki Sugiyama