Patents by Inventor Naohide Takamoto

Naohide Takamoto 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: 20140159254
    Abstract: The present invention provides a dicing tape-integrated film for semiconductor back surface, which includes: a dicing tape including a base material and a pressure-sensitive adhesive layer provided on the base material; and a film for flip chip type semiconductor back surface provided on the pressure-sensitive adhesive layer, in which a peel force (temperature: 23° C., peeling angle: 180°, tensile rate: 300 mm/min) between the pressure-sensitive adhesive layer of the dicing tape and the film for flip chip type semiconductor back surface is from 0.05 N/20 mm to 1.5 N/20 mm.
    Type: Application
    Filed: February 18, 2014
    Publication date: June 12, 2014
    Applicant: NITTO DENKO CORPORATION
    Inventors: Naohide TAKAMOTO, Takeshi MATSUMURA, Goji SHIGA
  • Publication number: 20140162434
    Abstract: A dicing tape integrated adhesive sheet including a substrate, a dicing tape in which a pressure-sensitive adhesive layer is laminated on the substrate, and an adhesive sheet formed on the pressure-sensitive adhesive layer, wherein a peeling force between the pressure-sensitive adhesive layer and the adhesive sheet is 0.02 to 0.5 N/20 mm obtained with a peeling test at a peeling rate of 10 m/minute and a peeling angle of 150°, and an absolute value of a peeling electrification voltage is 0.5 kV or less when the pressure-sensitive adhesive layer and the adhesive sheet are peeled off under conditions of the peeling test.
    Type: Application
    Filed: October 17, 2013
    Publication date: June 12, 2014
    Applicant: NITTO DENKO CORPORATION
    Inventors: Goji SHIGA, Koji MIZUNO, Naohide TAKAMOTO
  • Patent number: 8722517
    Abstract: The present invention provides a dicing tape-integrated film for semiconductor back surface, including a film for flip chip type semiconductor back surface for protecting a back surface of a semiconductor element flip chip-connected onto an adherend, and a dicing tape, the dicing tape including a base material and a pressure-sensitive adhesive layer provided on the base material, the film for flip chip type semiconductor back surface being formed on the pressure-sensitive adhesive layer, in which the pressure-sensitive adhesive layer is a radiation-curable pressure-sensitive adhesive layer whose pressure-sensitive adhesive force toward the film for flip chip type semiconductor back surface is decreased by irradiation with a radiation ray.
    Type: Grant
    Filed: April 18, 2011
    Date of Patent: May 13, 2014
    Assignee: Nitto Denko Corporation
    Inventors: Naohide Takamoto, Goji Shiga, Fumiteru Asai, Toshimasa Sugimura
  • Patent number: 8703584
    Abstract: The present invention provides a dicing tape-integrated film for semiconductor back surface, which includes: a dicing tape including a base material and a pressure-sensitive adhesive layer provided on the base material; and a film for flip chip type semiconductor back surface provided on the pressure-sensitive adhesive layer, in which the film for flip chip type semiconductor back surface has a multilayered structure including a wafer adhesion layer and a laser mark layer, the wafer adhesion layer is formed of a resin composition containing a thermosetting resin component and, as an optional component, a thermoplastic resin component in an amount of less than 30% by weight relative to the whole amount of resin components, and the laser mark layer is formed of a resin composition containing a thermoplastic resin component in an amount of 30% by weight or more relative to the whole amount of resin components and, as an optional component, a thermosetting resin component.
    Type: Grant
    Filed: May 28, 2010
    Date of Patent: April 22, 2014
    Assignee: Nitto Denko Corporation
    Inventors: Sadahito Misumi, Naohide Takamoto
  • Patent number: 8704382
    Abstract: The present invention provides a film for flip chip type semiconductor back surface, which is to be formed on a back surface of a semiconductor element flip-chip connected on an adherend, the film including a wafer adhesion layer and a laser marking layer, in which the wafer adhesion layer has a light transmittance of 40% or more in terms of a light having a wavelength of 532 nm and the laser marking layer has a light transmittance of less than 40% in terms of a light having a wavelength of 532 nm.
    Type: Grant
    Filed: December 22, 2010
    Date of Patent: April 22, 2014
    Assignee: Nitto Denko Corporation
    Inventors: Naohide Takamoto, Takeshi Matsumura, Goji Shiga
  • Patent number: 8698324
    Abstract: The present invention provides a dicing tape-integrated film for semiconductor back surface, which includes: a dicing tape including a base material and a pressure-sensitive adhesive layer provided on the base material; and a film for flip chip type semiconductor back surface provided on the pressure-sensitive adhesive layer, in which the film for flip chip type semiconductor back surface contains a black pigment.
    Type: Grant
    Filed: December 22, 2010
    Date of Patent: April 15, 2014
    Assignee: Nitto Denko Corporation
    Inventors: Naohide Takamoto, Takeshi Matsumura, Goji Shiga
  • Patent number: 8692389
    Abstract: The present invention provides a dicing tape-integrated film for semiconductor back surface, which includes: a dicing tape including a base material and a pressure-sensitive adhesive layer provided on the base material; and a film for flip chip type semiconductor back surface provided on the pressure-sensitive adhesive layer, in which a peel force (temperature: 23° C., peeling angle: 180°, tensile rate: 300 mm/min) between the pressure-sensitive adhesive layer of the dicing tape and the film for flip chip type semiconductor back surface is from 0.05 N/20 mm to 1.5 N/20 mm.
    Type: Grant
    Filed: December 22, 2010
    Date of Patent: April 8, 2014
    Assignee: Nitto Denko Corporation
    Inventors: Naohide Takamoto, Takeshi Matsumura, Goji Shiga
  • Publication number: 20140091480
    Abstract: The present invention provides a dicing tape-integrated wafer back surface protective film including: a dicing tape including a base material and a pressure-sensitive adhesive layer formed on the base material; and a wafer back surface protective film formed on the pressure-sensitive adhesive layer of the dicing tape, in which the wafer back surface protective film is colored. It is preferable that the colored wafer back surface protective film has a laser marking ability. The dicing tape-integrated wafer back surface protective film can be suitably used for a flip chip-mounted semiconductor device.
    Type: Application
    Filed: December 3, 2013
    Publication date: April 3, 2014
    Inventors: Naohide TAKAMOTO, Takeshi MATSUMURA
  • Publication number: 20140084490
    Abstract: The present invention provides a dicing tape-integrated wafer back surface protective film including: a dicing tape including a base material and a pressure-sensitive adhesive layer formed on the base material; and a wafer back surface protective film formed on the pressure-sensitive adhesive layer of the dicing tape, in which the wafer back surface protective film is colored. It is preferable that the colored wafer back surface protective film has a laser marking ability. The dicing tape-integrated wafer back surface protective film can be suitably used for a flip chip-mounted semiconductor device.
    Type: Application
    Filed: December 3, 2013
    Publication date: March 27, 2014
    Applicant: NITTO DENKO CORPORATION
    Inventors: Naohide TAKAMOTO, Takeshi MATSUMURA
  • Patent number: 8679931
    Abstract: The present invention relates to a dicing tape-integrated film for semiconductor back surface, which includes: a dicing tape including a base material layer, a first pressure-sensitive adhesive layer and a second pressure-sensitive adhesive layer stacked in this order, and a film for semiconductor back surface stacked on the second pressure-sensitive adhesive layer of the dicing tape, in which a peel strength Y between the first pressure-sensitive adhesive layer and the second pressure-sensitive adhesive layer is larger than a peel strength X between the second pressure-sensitive adhesive layer and the film for semiconductor back surface, and in which the peel strength X is from 0.01 to 0.2 N/20 mm, and the peel strength Y is from 0.2 to 10 N/20 mm.
    Type: Grant
    Filed: July 27, 2011
    Date of Patent: March 25, 2014
    Assignee: Nitto Denko Corporation
    Inventors: Fumiteru Asai, Goji Shiga, Naohide Takamoto
  • Patent number: 8652938
    Abstract: The present invention relates to a thermally releasable sheet-integrated film for semiconductor back surface, which includes: a pressure-sensitive adhesive sheet including a base material layer and a pressure-sensitive adhesive layer, and a film for semiconductor back surface formed on the pressure-sensitive adhesive layer of the pressure-sensitive adhesive sheet, in which the pressure-sensitive adhesive sheet is a thermally releasable pressure-sensitive adhesive sheet whose peel force from the film for semiconductor back surface decreases upon heating.
    Type: Grant
    Filed: July 26, 2011
    Date of Patent: February 18, 2014
    Assignee: Nitto Denko Corporation
    Inventors: Naohide Takamoto, Goji Shiga, Fumiteru Asai
  • Patent number: 8648476
    Abstract: The present invention provides a dicing tape-integrated wafer back surface protective film including: a dicing tape including a base material and a pressure-sensitive adhesive layer formed on the base material; and a wafer back surface protective film formed on the pressure-sensitive adhesive layer of the dicing tape, in which the wafer back surface protective film is colored. It is preferable that the colored wafer back surface protective film has a laser marking ability. The dicing tape-integrated wafer back surface protective film can be suitably used for a flip chip-mounted semiconductor device.
    Type: Grant
    Filed: June 26, 2013
    Date of Patent: February 11, 2014
    Assignee: Nitto Denko Corporation
    Inventors: Naohide Takamoto, Takeshi Matsumura
  • Patent number: 8647956
    Abstract: The present invention relates to a dicing tape-integrated film for semiconductor back surface, which includes: a dicing tape including a base material layer, a first pressure-sensitive adhesive layer and a second pressure-sensitive adhesive layer stacked in this order, and a film for semiconductor back surface stacked on the second pressure-sensitive adhesive layer of the dicing tape, in which a peel strength Y between the first pressure-sensitive adhesive layer and the second pressure-sensitive adhesive layer is larger than a peel strength X between the second pressure-sensitive adhesive layer and the film for semiconductor back surface, and in which the peel strength X is from 0.01 to 0.2 N/20 mm, and the peel strength Y is from 0.2 to 10 N/20 mm.
    Type: Grant
    Filed: July 27, 2011
    Date of Patent: February 11, 2014
    Assignee: Nitto Denko Corporation
    Inventors: Fumiteru Asai, Goji Shiga, Naohide Takamoto
  • Publication number: 20140037923
    Abstract: The present invention relates to a dicing tape-integrated film for semiconductor back surface, which includes: a dicing tape including a base material layer, a first pressure-sensitive adhesive layer and a second pressure-sensitive adhesive layer stacked in this order, and a film for semiconductor back surface stacked on the second pressure-sensitive adhesive layer of the dicing tape, in which a peel strength Y between the first pressure-sensitive adhesive layer and the second pressure-sensitive adhesive layer is larger than a peel strength X between the second pressure-sensitive adhesive layer and the film for semiconductor back surface, and in which the peel strength X is from 0.01 to 0.2 N/20 mm, and the peel strength Y is from 0.2 to 10 N/20 mm.
    Type: Application
    Filed: October 11, 2013
    Publication date: February 6, 2014
    Applicant: NITTO DENKO CORPORATION
    Inventors: Fumiteru ASAI, Goji Shiga, Naohide TAKAMOTO
  • Patent number: 8643194
    Abstract: The present invention provides a dicing tape-integrated film for semiconductor back surface including: a dicing tape including a base material and a pressure-sensitive adhesive layer on the base material; and a film for flip chip type semiconductor back surface, which is provided on the pressure-sensitive adhesive layer, in which at least a part of the pressure-sensitive adhesive layer has been cured beforehand by irradiation with a radiation ray.
    Type: Grant
    Filed: April 18, 2011
    Date of Patent: February 4, 2014
    Assignee: Nitto Denko Corporation
    Inventors: Naohide Takamoto, Goji Shiga, Fumiteru Asai, Akiyoshi Yamamoto, Tomokazu Takahashi
  • Publication number: 20130328217
    Abstract: An object of the present invention is to provide a method of marking a semiconductor element with which a semiconductor device can be manufactured effectively even in the case of marking every semiconductor element, and a method of manufacturing the semiconductor device. The present invention relates to a method of marking a semiconductor element, wherein marking is performed on a semiconductor element that is inserted in a pocket of a carrier that can be wound up in a reel state. The present invention relates to a method of manufacturing a semiconductor device comprising: a step 1 of inserting a semiconductor element in a pocket of a carrier that can be wound up in a reel state; and a step 2 of marking the semiconductor element that is inserted in the pocket.
    Type: Application
    Filed: June 5, 2013
    Publication date: December 12, 2013
    Inventors: Naohide TAKAMOTO, Goji SHIGA
  • Publication number: 20130285262
    Abstract: The present invention provides a dicing tape-integrated wafer back surface protective film including: a dicing tape including a base material and a pressure-sensitive adhesive layer formed on the base material; and a wafer back surface protective film formed on the pressure-sensitive adhesive layer of the dicing tape, in which the wafer back surface protective film is colored. It is preferable that the colored wafer back surface protective film has a laser marking ability. The dicing tape-integrated wafer back surface protective film can be suitably used for a flip chip-mounted semiconductor device.
    Type: Application
    Filed: June 26, 2013
    Publication date: October 31, 2013
    Inventors: Naohide TAKAMOTO, Takeshi MATSUMURA
  • Patent number: 8558397
    Abstract: The present invention provides a dicing tape-integrated wafer back surface protective film including: a dicing tape including a base material and a pressure-sensitive adhesive layer formed on the base material; and a wafer back surface protective film formed on the pressure-sensitive adhesive layer of the dicing tape, in which the wafer back surface protective film is colored. It is preferable that the colored wafer back surface protective film has a laser marking ability. The dicing tape-integrated wafer back surface protective film can be suitably used for a flip chip-mounted semiconductor device.
    Type: Grant
    Filed: June 27, 2012
    Date of Patent: October 15, 2013
    Assignee: Nitto Denko Corporation
    Inventors: Naohide Takamoto, Takeshi Matsumura
  • Patent number: 8518745
    Abstract: A method of manufacturing a semiconductor device is provided. The method includes the steps of pasting a film for forming a protective layer in which a support base, an adhesive layer, and a thermosetting resin layer are laminated, in that order, onto a bumped wafer in which a low dielectric material layer is formed, with the thermosetting resin layer serving as a pasting surface, and further, peeling the support base and the adhesive layer from the thermosetting resin layer, forming a protective layer by thermally curing the thermosetting resin layer, and dicing the bumped wafer and the protective layer together.
    Type: Grant
    Filed: February 14, 2012
    Date of Patent: August 27, 2013
    Assignee: Nitto Denko Corporation
    Inventors: Takashi Oda, Naohide Takamoto, Takeshi Matsumura
  • Patent number: 8513816
    Abstract: The present invention relates to a film for flip chip type semiconductor back surface, which is to be disposed on the back surface of a semiconductor element to be flip chip-connected onto an adherend, the film containing a resin and a thermoconductive filler, in which the content of the thermoconductive filler is at least 50% by volume of the film, and the thermoconductive filler has an average particle size relative to the thickness of the film of at most 30% and has a maximum particle size relative to the thickness of the film of at most 80%.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: August 20, 2013
    Assignee: Nitto Denko Corporation
    Inventors: Naohide Takamoto, Goji Shiga, Fumiteru Asai