Patents by Inventor Katsumi Iyanagi

Katsumi Iyanagi 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: 9601370
    Abstract: The memory cell array includes a memory string and a select transistor. The memory string includes plural memory cells connected in series, the memory string being formed to extend in a first direction as a lengthwise direction. The select transistor is connected to one end of the memory string. In the wiring section, a conductive layer and an interlayer insulating layer are laminated alternately to form plural layers. The conductive layer functions as a gate electrode of the memory cells and the select transistor. One select transistor includes plural conductive layers, and the plural conductive layers are connected in common by a common first contact. The plurality of the conductive layers and the first contact include a barrier metal formed in a periphery thereof. The plurality of the conductive layers and the first contact are in contact without the barrier metal therebetween at a boundary thereof.
    Type: Grant
    Filed: March 12, 2015
    Date of Patent: March 21, 2017
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Hisashi Kato, Murato Kawai, Toru Matsuda, Takeshi Sonehara, Katsumi Iyanagi
  • Patent number: 9597922
    Abstract: Disclosed are an activation method and a liquid pressure transfer technique, where a transfer film is supplied to the surface of a transfer liquid and then is activated, capable of continuously performing a precise transfer. In forming an appropriate transfer pattern on the surface of an object by pressing the object from the upper side of a transfer tank, in the transfer tank, a pre-activation guide mechanism that holds both sides of the film, which is supplied with the center position matching the center of the transfer tank, at horizontally equivalent positions of the transfer tank and guides the film to an activation area is disposed. Accordingly, the film is urged to swell up in the thickness direction, and, in the activation area, the film is coated with an activating agent in a state in which the guide action of the film using the pre-activation guide mechanism is cancelled.
    Type: Grant
    Filed: December 8, 2011
    Date of Patent: March 21, 2017
    Assignee: TAICA CORPORATION
    Inventors: Eiji Suzuki, Youichiro Yoshii, Katsumi Iyanagi, Sakae Ushiwata
  • Publication number: 20160079185
    Abstract: The memory cell array includes a memory string and a select transistor. The memory string includes plural memory cells connected in series, the memory string being formed to extend in a first direction as a lengthwise direction. The select transistor is connected to one end of the memory string. In the wiring section, a conductive layer and an interlayer insulating layer are laminated alternately to form plural layers. The conductive layer functions as a gate electrode of the memory cells and the select transistor. One select transistor includes plural conductive layers, and the plural conductive layers are connected in common by a common first contact. The plurality of the conductive layers and the first contact include a barrier metal formed in a periphery thereof. The plurality of the conductive layers and the first contact are in contact without the barrier metal therebetween at a boundary thereof.
    Type: Application
    Filed: March 12, 2015
    Publication date: March 17, 2016
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Hisashi KATO, Murato Kawai, Toru Matsuda, Takeshi Sonehara, Katsumi Iyanagi
  • Patent number: 9111859
    Abstract: According to an embodiment, a non-volatile memory device includes a first interconnection extending in a first direction, a plurality of second interconnections provided side by side on the first interconnection and extending in a second direction intersecting the first direction and a memory layer provided on a side surface of each second interconnection. The device also includes a control element provided between each of the second interconnections and the first interconnection, an element part extending in the second direction, and a control electrode facing a side surface of the element part via a first insulating film. An adjustment part is provided on the first interconnection and adjacent to a control element connected to a second interconnection disposed at an end position of the second interconnections arranged in the first direction, and a first outer electrode provided between the adjustment part and the control element disposed at the end position.
    Type: Grant
    Filed: September 10, 2013
    Date of Patent: August 18, 2015
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Katsumi Iyanagi
  • Patent number: 9103025
    Abstract: A magnetron sputtering apparatus includes a vacuum chamber, a target and a substrate holder disposed to face one another in the vacuum chamber, a magnetron disposed on the target side which is opposite to where the substrate holder is disposed, and a rotating mechanism for rotating the magnetron about an axis perpendicular to a face of the target. The magnetron includes an inner magnet formed of a sector-shaped frame and an outer magnet formed of a sector-shaped frame, these inner and outer magnets having a different polarity each other, the outer magnet being disposed to surround the inner magnet leaving a gap between the arcuate segments of the inner and outer magnets as well as a gap between straight segments of the inner and outer magnets, the width of these frames being substantially the same with each other.
    Type: Grant
    Filed: September 21, 2007
    Date of Patent: August 11, 2015
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Katsumi Iyanagi, Shigeki Matsunaka
  • Publication number: 20140367024
    Abstract: Disclosed are an activation method and a liquid pressure transfer technique, where a transfer film is supplied to the surface of a transfer liquid and then is activated, capable of continuously performing a precise transfer. In forming an appropriate transfer pattern on the surface of an object by pressing the object from the upper side of a transfer tank, in the transfer tank, a pre-activation guide mechanism that holds both sides of the film, which is supplied with the center position matching the center of the transfer tank, at horizontally equivalent positions of the transfer tank and guides the film to an activation area is disposed. Accordingly, the film is urged to swell up in the thickness direction, and, in the activation area, the film is coated with an activating agent in a state in which the guide action of the film using the pre-activation guide mechanism is cancelled.
    Type: Application
    Filed: December 8, 2011
    Publication date: December 18, 2014
    Applicant: TAICA CORPORATION
    Inventors: Youichiro Yoshii, Eiji Suzuki, Katsumi Iyanagi, Sakae Ushiwata
  • Publication number: 20140339492
    Abstract: According to an embodiment, a non-volatile memory device includes a first interconnection extending in a first direction, a plurality of second interconnections provided side by side on the first interconnection and extending in a second direction intersecting the first direction and a memory layer provided on a side surface of each second interconnection. The device also includes a control element provided between each of the second interconnections and the first interconnection, an element part extending in the second direction, and a control electrode facing a side surface of the element part via a first insulating film. An adjustment part is provided on the first interconnection and adjacent to a control element connected to a second interconnection disposed at an end position of the second interconnections arranged in the first direction, and a first outer electrode provided between the adjustment part and the control element disposed at the end position.
    Type: Application
    Filed: September 10, 2013
    Publication date: November 20, 2014
    Applicant: Kabushiki Kaisha Toshiba
    Inventor: Katsumi IYANAGI
  • Publication number: 20130255514
    Abstract: The present invention relates to a liquid pressure transferring technique for forming an appropriate transfer pattern on the surface of an object by pressing the object from the upper side of a transfer tank, in a liquid-leaving area in which the object is pulled up from the transfer liquid in the transfer tank, a design surface oppositely-separating flow that is separated away from a design surface of the object that is in the process of getting out of a liquid is formed by using the design surface cleaning device such as an overflow tank, and foam on a surface of the transfer liquid and foreign substances staying in the liquid are separated away from the design surface of the object that is in the process of getting out of the liquid and are discharged outside the transfer tank.
    Type: Application
    Filed: December 8, 2011
    Publication date: October 3, 2013
    Applicant: TAICA CORPORATION
    Inventors: Youichiro Yoshii, Eiji Suzuki, Sakae Ushiwata, Katsumi Iyanagi
  • Patent number: 8276103
    Abstract: In one embodiment, a photomask designing method is disclosed. The method includes dividing design pattern data into predetermined regions and obtaining a pattern perimeter for each of the divided regions. The method includes obtaining the pattern perimeter for an entire region of the design pattern data by repeating the obtaining the pattern perimeter for the each of the divided regions. The method includes obtaining a dimension conversion difference for the entire region of the design pattern data using the pattern perimeter for the entire region of the design pattern data and a correlation obtained in advance between a predicted pattern perimeter and a predicted dimension conversion difference. The method includes performing process proximity correction on the design pattern data using a value of the obtained dimension conversion difference, and creating exposure pattern data from the corrected design pattern data.
    Type: Grant
    Filed: September 16, 2010
    Date of Patent: September 25, 2012
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Katsumi Iyanagi
  • Patent number: 8266552
    Abstract: Pattern formation simulations are performed based on design layout data subjected to OPC processing with a plurality of process parameters set in process conditions. A worst condition of the process conditions is calculated based on risk points extracted from simulation results. The design layout data or the OPC processing is changed such that when a pattern is formed under the worst condition based on the changed design layout data or the changed OPC processing a number of the risk points or a risk degree of the risk points of the pattern is smaller than the simulation result.
    Type: Grant
    Filed: February 15, 2010
    Date of Patent: September 11, 2012
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Takafumi Taguchi, Toshiya Kotani, Michiya Takimoto, Fumiharu Nakajima, Ryota Aburada, Hiromitsu Mashita, Katsumi Iyanagi, Chikaaki Kodama
  • Patent number: 8196071
    Abstract: A pattern data creating method comprising: referring to a first correspondence relation between an amount of dimension variation between a first pattern formed on a substrate and a second pattern formed by processing the substrate using the first pattern and either one of a pattern total surface area and a pattern boundary length of the first pattern; and creating pattern data for forming the first pattern.
    Type: Grant
    Filed: January 15, 2010
    Date of Patent: June 5, 2012
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hiromitsu Mashita, Katsumi Iyanagi, Takafumi Taguchi, Toshiya Kotani, Hidefumi Mukai, Taiga Uno, Takashi Nakazawa
  • Patent number: 8171434
    Abstract: A method for dimension conversion difference prediction includes: determining an opening angle at a conversion difference prediction point on basis of a design pattern data; and predicting a dimension conversion difference on basis of correlation between the opening angle and an actual measurement value of the dimension conversion difference, or a method for dimension conversion difference prediction includes: determining an incident amount of incident objects at a conversion difference prediction point on basis of a design data; and predicting a dimension conversion difference on basis of correlation between the incident amount and an actual measurement value of the dimension conversion difference.
    Type: Grant
    Filed: September 25, 2008
    Date of Patent: May 1, 2012
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Katsumi Iyanagi
  • Publication number: 20110070531
    Abstract: In one embodiment, a photomask designing method is disclosed. The method includes dividing design pattern data into predetermined regions and obtaining a pattern perimeter for each of the divided regions. The method includes obtaining the pattern perimeter for an entire region of the design pattern data by repeating the obtaining the pattern perimeter for the each of the divided regions. The method includes obtaining a dimension conversion difference for the entire region of the design pattern data using the pattern perimeter for the entire region of the design pattern data and a correlation obtained in advance between a predicted pattern perimeter and a predicted dimension conversion difference. The method includes performing process proximity correction on the design pattern data using a value of the obtained dimension conversion difference, and creating exposure pattern data from the corrected design pattern data.
    Type: Application
    Filed: September 16, 2010
    Publication date: March 24, 2011
    Applicant: Kabushiki Kaisha Toshiba
    Inventor: Katsumi Iyanagi
  • Publication number: 20100241261
    Abstract: Pattern formation simulations are performed based on design layout data subjected to OPC processing with a plurality of process parameters set in process conditions. A worst condition of the process conditions is calculated based on risk points extracted from simulation results. The design layout data or the OPC processing is changed such that when a pattern is formed under the worst condition based on the changed design layout data or the changed OPC processing a number of the risk points or a risk degree of the risk points of the pattern is smaller than the simulation result.
    Type: Application
    Filed: February 15, 2010
    Publication date: September 23, 2010
    Inventors: Takafumi TAGUCHI, Toshiya Kotani, Michiya Takimoto, Fumiharu Nakajima, Ryota Aburada, Hiromitsu Mashita, Katsumi Iyanagi, Chikaaki Kodama
  • Publication number: 20100185313
    Abstract: A pattern data creating method comprising: referring to a first correspondence relation between an amount of dimension variation between a first pattern formed on a substrate and a second pattern formed by processing the substrate using the first pattern and either one of a pattern total surface area and a pattern boundary length of the first pattern; and creating pattern data for forming the first pattern.
    Type: Application
    Filed: January 15, 2010
    Publication date: July 22, 2010
    Inventors: Hiromitsu MASHITA, Katsumi Iyanagi, Takafumi Taguchi, Toshiya Kotani, Hidefumi Mukai, Taiga Uno, Takashi Nakazawa
  • Publication number: 20090089727
    Abstract: A method for dimension conversion difference prediction includes: determining an opening angle at a conversion difference prediction point on basis of a design pattern data; and predicting a dimension conversion difference on basis of correlation between the opening angle and an actual measurement value of the dimension conversion difference, or a method for dimension conversion difference prediction includes: determining an incident amount of incident objects at a conversion difference prediction point on basis of a design data; and predicting a dimension conversion difference on basis of correlation between the incident amount and an actual measurement value of the dimension conversion difference.
    Type: Application
    Filed: September 25, 2008
    Publication date: April 2, 2009
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventor: Katsumi IYANAGI
  • Publication number: 20080169186
    Abstract: A magnetron sputtering apparatus includes a vacuum chamber, a target and a substrate holder disposed to face one another in the vacuum chamber, a magnetron disposed on the target side which is opposite to where the substrate holder is disposed, and a rotating mechanism for rotating the magnetron about an axis perpendicular to a face of the target. The magnetron includes an inner magnet formed of a sector-shaped frame and an outer magnet formed of a sector-shaped frame, these inner and outer magnets having a different polarity each other, the outer magnet being disposed to surround the inner magnet leaving a gap between the arcuate segments of the inner and outer magnets as well as a gap between straight segments of the inner and outer magnets, the width of these frames being substantially the same with each other.
    Type: Application
    Filed: September 21, 2007
    Publication date: July 17, 2008
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Katsumi Iyanagi, Shigeki Matsunaka