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).

  • Patent number: 9478454
    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: March 21, 2014
    Date of Patent: October 25, 2016
    Assignee: NITTO DENKO CORPORATION
    Inventors: Naohide Takamoto, Goji Shiga, Fumiteru Asai, Toshimasa Sugimura
  • Patent number: 9472439
    Abstract: Provided are a reinforcing sheet which is capable of forming a secondary mounted semiconductor device excellent in impact resistance and which is capable of enhancing efficiency of a secondary mounting process; and a method for producing a secondary mounted semiconductor device using the reinforcing sheet. The present invention provides a reinforcing sheet for reinforcing a secondary mounted semiconductor device in which a primary mounted semiconductor device with a bump electrode formed on a first main surface is electrically connected to a wiring substrate through the bump electrode, wherein the reinforcing sheet includes a base material layer, a pressure-sensitive adhesive layer, and a thermosetting resin layer in this order, and the pressure-sensitive adhesive layer has a breaking strength of 0.07 MPa or more, and a melt viscosity of 4000 Pa·s or less at 60 to 100° C.
    Type: Grant
    Filed: March 12, 2014
    Date of Patent: October 18, 2016
    Assignee: NITTO DENKO CORPORATION
    Inventors: Naohide Takamoto, Kosuke Morita, Hiroyuki Senzai
  • Publication number: 20160240394
    Abstract: A method for producing a semiconductor device includes: a Step A of preparing a chip with sheet-shaped resin composition in which a sheet-shaped resin composition is pasted onto a bump formation surface of a semiconductor chip, a Step B of preparing a substrate for mounting on which an electrode is formed, a Step C of pasting the chip with resin composition to the substrate for mounting so that the resin composition serves as a pasting surface with the bump formed on the semiconductor chip facing toward the electrode formed on the substrate for mounting, a Step D of heating the resin composition to semi-cure the resin composition after the Step C, and a Step E of heating the resin composition at a higher temperature than that in the Step D to cure the resin composition after the Step D while bonding the bump and the electrode.
    Type: Application
    Filed: September 19, 2014
    Publication date: August 18, 2016
    Applicant: NITTO DENKO CORPORATION
    Inventors: Akihiro Fukui, Naohide Takamoto, Hiroyuki Hanazono
  • Publication number: 20160240523
    Abstract: Provided is a method for manufacturing a semiconductor device, which can manufacture a semiconductor device at a high yield ratio by suppressing dissolution of a sheet-shaped resin composition when cleaning a wafer after peeling a supporting member from the wafer.
    Type: Application
    Filed: October 3, 2014
    Publication date: August 18, 2016
    Inventors: Naohide Takamoto, Hiroyuki Hanazono, Akihiro Fukui
  • Publication number: 20160233184
    Abstract: A method for manufacturing a semiconductor includes: a Step A of preparing a chip with sheet-shaped resin composition in which a sheet-shaped resin composition is pasted onto a semiconductor chip, a Step B of preparing an adherend, a Step C of pasting the chip with sheet-shaped resin composition onto the adherend so that the sheet-shaped resin composition serves as a pasting surface, a Step D of heating the sheet-shaped resin composition to semi-cure the sheet-shaped resin composition after the Step C, and a Step E of heating the sheet-shaped resin composition at a higher temperature than in the Step D to cure the sheet-shaped resin composition after the Step D.
    Type: Application
    Filed: September 19, 2014
    Publication date: August 11, 2016
    Applicant: Nitto Denko Corporation
    Inventors: Hiroyuki Hanazono, Naohide Takamoto, Akihiro Fukui
  • Publication number: 20160172230
    Abstract: The present invention relates to a dicing tape-integrated film for semiconductor back surface, which includes: a dicing tape including a base material having an asperities-formed surface, and a pressure-sensitive adhesive layer laminated on the base material, and a film for semiconductor back surface laminated on the pressure-sensitive adhesive layer of the dicing tape, in which the dicing tape has a haze of at most 45%.
    Type: Application
    Filed: February 17, 2016
    Publication date: June 16, 2016
    Applicant: NITTO DENKO CORPORATION
    Inventors: Naohide TAKAMOTO, Goji SHIGA, Fumiteru ASAI
  • Patent number: 9368421
    Abstract: The present invention provides an under-fill material with which a semiconductor device having a high connection reliability can be provided while securing a usable material by reducing a difference in thermal-responsive behavior between a semiconductor element and an adherend, and a method for producing a semiconductor device using the under-fill material. In the under-fill material of the present invention, a storage elastic modulus E? [MPa] and a thermal expansion coefficient ? [ppm/K] after carrying out a heat-curing treatment at 175° C. for an hour satisfy the following formula (1) at 25° C.: E?×?<250000 [Pa/K]??(1).
    Type: Grant
    Filed: June 5, 2015
    Date of Patent: June 14, 2016
    Assignee: NITTO DENKO CORPORATION
    Inventors: Kosuke Morita, Naohide Takamoto, Hiroyuki Senzai
  • Patent number: 9362156
    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: February 25, 2014
    Date of Patent: June 7, 2016
    Assignee: NITTO DENKO CORPORATION
    Inventors: Naohide Takamoto, Takeshi Matsumura, Goji Shiga
  • Patent number: 9324616
    Abstract: An object of the present invention is to provide a method of manufacturing a flip-chip type semiconductor device with a simplified process, in which various types of information are supplied in a visually recognizable manner. The present invention relates to a method of manufacturing a flip-chip type semiconductor device comprising: a step A of laminating on a semiconductor wafer a film for the backside of a flip-chip type semiconductor, in which the film is to be formed on the backside of a semiconductor element that is flip-chip connected onto an adherend; a step B of dicing the semiconductor wafer; and a step C of laser marking the film for the backside of a flip-chip type semiconductor, wherein the film for the backside of a flip-chip type semiconductor in the step C is uncured.
    Type: Grant
    Filed: January 15, 2013
    Date of Patent: April 26, 2016
    Assignee: NITTO DENKO CORPORATION
    Inventors: Goji Shiga, Fumiteru Asai, Naohide Takamoto
  • Patent number: 9293387
    Abstract: The present invention relates to a film for flip chip type semiconductor back surface to be formed on a back surface of a semiconductor element flip chip-connected onto an adherend, in which the film for flip chip type semiconductor back surface before thermal curing has, at the thermal curing thereof, a volume contraction ratio within a range of 23° C. to 165° C. of 100 ppm/° C. to 400 ppm/° C.
    Type: Grant
    Filed: July 27, 2011
    Date of Patent: March 22, 2016
    Assignee: NITTO DENKO CORPORATION
    Inventors: Yusuke Komoto, Naohide Takamoto, Goji Shiga, Fumiteru Asai
  • Publication number: 20160075871
    Abstract: Provided are a thermosetting resin composition with which a semiconductor device having a high connection reliability can be provided while securing availability of member materials by reducing a difference in thermal-responsive behavior between a semiconductor element and an adherend, and a method for producing a semiconductor device using the thermosetting resin composition. The present invention provides a thermosetting resin composition for producing a semiconductor device, the thermosetting resin composition comprising: an epoxy resin; and a novolak-type phenol resin having a hydroxyl equivalent of 200 g/eq or more.
    Type: Application
    Filed: April 11, 2014
    Publication date: March 17, 2016
    Inventors: Kosuke Morita, Naohide Takamoto, Hiroyuki Hanazono, Akihiro Fukui
  • Patent number: 9279064
    Abstract: The present invention aims to provide a film for forming a protective layer that is capable of preventing cracks in a low dielectric material layer of a semiconductor wafer while suppressing an increase in the number of steps in the manufacture of a semiconductor device. This object is achieved by a film for forming a protective layer on a bumped wafer in which a low dielectric material layer is formed, including a support base, an adhesive layer, and a thermosetting resin layer, laminated in this order, wherein the melt viscosity of the thermosetting resin layer is 1×102 Pa·S or more and 2×104 Pa·S or less, and the shear modulus of the adhesive layer is 1×103 Pa or more and 2×106 Pa or less, when the thermosetting resin layer has a temperature in a range of 50 to 120° C.
    Type: Grant
    Filed: April 2, 2013
    Date of Patent: March 8, 2016
    Assignee: NITTO DENKO CORPORATION
    Inventors: Takashi Oda, Naohide Takamoto, Takeshi Matsumura
  • Publication number: 20160064297
    Abstract: Provided are an under-fill material which is capable of reducing a difference in thermal response behavior between a semiconductor element and an adherend and which makes it easy and convenient to perform alignment for mounting the semiconductor element, a sealing sheet including the under-fill material, and a method for producing a semiconductor device using the under-fill material. In the under-fill material of the present invention, a haze is 70% or less before a heat curing treatment, and a storage elastic modulus E? [MPa] and a thermal expansion coefficient ? [ppm/K] after the under-fill material is subjected to a heat curing treatment at 175° C. for 1 hour satisfy the following formula (1) at 25° C.: 10000<E?×?<250000 [Pa/K].
    Type: Application
    Filed: March 19, 2014
    Publication date: March 3, 2016
    Inventors: Kosuke Morita, Naohide Takamoto
  • Publication number: 20160056066
    Abstract: The present invention provides an adhesive sheet used in manufacture of a semiconductor device, containing a filler having an average particle size of 0.3 ?m or less and an acrylic resin, wherein the content of the filler is in the range of 20 to 45% by weight with respect to the entire adhesive sheet, and the content of the acrylic resin is in the range of 40 to 70% by weight with respect to entire resin components.
    Type: Application
    Filed: April 3, 2014
    Publication date: February 25, 2016
    Applicant: NITTO DENKO CORPORATION
    Inventors: Goji SHIGA, Naohide TAKAMOTO
  • Publication number: 20160056123
    Abstract: Provided are a sealing sheet capable of suppressing generation of voids due to satisfactory embeddability in irregularities of a semiconductor element or an adherend and with satisfactory workability before and after the sealing sheet is bonded to the adherend; a method for producing a semiconductor device using the sealing sheet; and a substrate with the sealing sheet bonded thereto. The sealing sheet includes a base material, and an under-fill material provided thereon having the following characteristics: a 90° peel strength from the base material of 1 mN/20 mm or more and 50 mN/20 mm or less; a rupture elongation of 10% or more at 25° C.; a minimum viscosity of 20,000 Pa·s or less at a temperature of 40° C. or more and 100° C. or less; and a minimum viscosity of 100 Pa·s or more at a temperature of 100° C. or more and 200° C. or less.
    Type: Application
    Filed: March 19, 2014
    Publication date: February 25, 2016
    Inventors: Kosuke Morita, Naohide Takamoto
  • Publication number: 20160042986
    Abstract: Provided are a reinforcing sheet which is capable of forming a secondary mounted semiconductor device excellent in impact resistance and which is capable of enhancing efficiency of a secondary mounting process; and a method for producing a secondary mounted semiconductor device using the reinforcing sheet. The present invention provides a reinforcing sheet for reinforcing a secondary mounted semiconductor device in which a primary mounted semiconductor device with a bump electrode formed on a first main surface is electrically connected to a wiring substrate through the bump electrode, wherein the reinforcing sheet includes a base material layer, a pressure-sensitive adhesive layer, and a thermosetting resin layer in this order, and the pressure-sensitive adhesive layer has a breaking strength of 0.07 MPa or more, and a melt viscosity of 4000 Pa·s or less at 60 to 100° C.
    Type: Application
    Filed: March 12, 2014
    Publication date: February 11, 2016
    Inventors: Naohide Takamoto, Kosuke Morita, Hiroyuki Senzai
  • Publication number: 20160040045
    Abstract: The present invention provides an adhesive film for underfill that is capable of increasing a glass transition temperature without losing flexibility. The present invention relates to an adhesive film for underfill containing resin components containing an epoxy resin having a number average molecular weight of 600 or less, a phenol resin having a number average molecular weight exceeding 500, and an elastomer in which a content of the epoxy resin in the resin components is 5 to 50% by weight, and the content of the phenol resin in the resin components is 5 to 50% by weight.
    Type: Application
    Filed: March 27, 2014
    Publication date: February 11, 2016
    Inventors: Kosuke Morita, Naohide Takamoto, Hiroyuki Hanazono, Akihiro Fukui
  • Publication number: 20160035640
    Abstract: The present invention provides an underfill film and a sealing sheet that are excellent in thermal conductive property and are capable of satisfactorily filling the space between the semiconductor element and the substrate. The present invention relates to an underfill film having a resin and a thermally conductive filler, in which a content of the thermally conductive filler is 50% by volume or more, an average particle size of the thermally conductive filler is 30% or less of a thickness of the underfill film, and a maximum particle size of the thermally conductive filler is 80% or less of the thickness of the underfill film.
    Type: Application
    Filed: March 27, 2014
    Publication date: February 4, 2016
    Inventors: Kosuke MORITA, Naohide TAKAMOTO, Hiroyuki HANAZONO, Akihiro FUKUI
  • Publication number: 20160013089
    Abstract: A production method for a semiconductor device is provided whereby, when peeling a support body from an attached wafer, melting of a sheet-shaped resin composition pasted to the other surface of the wafer can be suppressed. The method comprises: preparing a support body-attached wafer, said support body-attached wafer having the support body bonded, via a temporary fixing layer, to one surface of the wafer having a through electrode formed therein; preparing a dicing tape-integrated sheet-shaped resin composition having a sheet-shaped resin composition having an external shape smaller than the other surface of the wafer formed upon a dicing tape; pasting the other surface of the support body-attached wafer to the sheet-shaped resin composition in the dicing tape-integrated sheet-shaped resin composition; and melting the temporary fixing layer by a solvent and peeling the support body away from the wafer.
    Type: Application
    Filed: February 28, 2014
    Publication date: January 14, 2016
    Inventors: Naohide Takamoto, Kosuke Morita, Akihiro Fukui, Hiroyuki Hanazono, Akira Suzuki
  • Publication number: 20150380277
    Abstract: An object of the present invention is to provide an underfill sheet that enables suitable filling of unevenness of a circuit surface of a semiconductor element, a suitable connection of a terminal of the semiconductor element and a terminal of an adherend, and suppression of outgas. The present invention relates to the underfill sheet having a viscosity of 1,000 Pa·s to 10,000 Pa·s at 150° C. and 0.05 to 0.20 rotations/min; and a minimum viscosity of 100 Pa·s or more at 100 to 200° C. and 0.3 to 0.7 rotations/min.
    Type: Application
    Filed: February 7, 2014
    Publication date: December 31, 2015
    Applicant: NITTO DENKO CORPORATION
    Inventors: Kosuke Morita, Naohide Takamoto, Hiroyuki Hanazono, Akihiro Fukui