Patents by Inventor Kazunori Hamazaki

Kazunori Hamazaki 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: 20230339720
    Abstract: Provided is a reel member and an adhesive film winding body capable of suppressing sticking and blocking and preventing falling off. A real member includes: a winding core 3 around which an adhesive film 2 is to be wound; a pair of reel flanges 4 provided on both sides of the winding core 3; and a plurality of ribs 5 formed on an inner surface 4a of the reel flange 4, protruding from the inner surface 4a, and extending from the center side to the peripheral edge side of the reel flange 4, wherein in the rib 5, a rib top width W1 in contact with the adhesive film 2 is narrower than a rib base width W2 in contact with the inner surface 4a in cross-sectional view.
    Type: Application
    Filed: November 18, 2020
    Publication date: October 26, 2023
    Applicant: DEXERIALS CORPORATION
    Inventors: Kazunori HAMAZAKI, Hiroyuki NAKAMURA, Tomohisa KAWAI
  • Patent number: 10934459
    Abstract: An adhesive tape structure can suppress protrusion of adhesive agent and blocking. The adhesive tape structure includes adhesive tapes each provided with a base film, an adhesive film, and a cover film laminated in this order, and a linking tape linking the adhesive tapes and configured such that the cover films of the adhesive tapes are integrally released. The adhesive tapes each have a part having a predetermined length completely removed from an edge portion of the adhesive film on a release initiation side in a cover film release direction; the adhesive tape thus has gaps in the edge portions of the adhesive films.
    Type: Grant
    Filed: May 8, 2017
    Date of Patent: March 2, 2021
    Assignee: DEXERIALS CORPORATION
    Inventor: Kazunori Hamazaki
  • Publication number: 20190071590
    Abstract: An adhesive tape structure can suppress protrusion of adhesive agent and blocking. The adhesive tape structure includes adhesive tapes each provided with a base film, an adhesive film, and a cover film laminated in this order, and a linking tape linking the adhesive tapes and configured such that the cover films of the adhesive tapes are integrally released. The adhesive tapes each have a part having a predetermined length completely removed from an edge portion of the adhesive film on a release initiation side in a cover film release direction; the adhesive tape thus has gaps in the edge portions of the adhesive films.
    Type: Application
    Filed: May 8, 2017
    Publication date: March 7, 2019
    Applicant: DEXERIALS CORPORATION
    Inventor: Kazunori HAMAZAKI
  • Patent number: 9524949
    Abstract: A semiconductor device includes a semiconductor chip provided with a plurality of bumps arranged in a peripheral alignment, a substrate provided with a plurality of electrodes, and an insulating resin adhesive film. The semiconductor chip is affixed to the substrate via the insulating resin adhesive film such that the electrodes are in positions corresponding to the positions of the bumps. The insulating resin adhesive film has a minimum melt viscosity of 8×103 to 1×105 Pa·s, covers 70 to 90% the area of the region enclosed with the plurality of bumps, and heat cured. The bumps and the electrodes corresponding thereto are arranged so that they are opposed to each other and establish metallic contact therebetween. A periphery of the insulating resin adhesive film is defined between the plurality of bumps and the outer edge of the semiconductor chip, exclusive.
    Type: Grant
    Filed: May 16, 2016
    Date of Patent: December 20, 2016
    Assignee: Dexerials Corporation
    Inventors: Kazunori Hamazaki, Takashi Matsumura, Daisuke Sato, Yasuhiro Suga
  • Publication number: 20160260683
    Abstract: A semiconductor device includes a semiconductor chip provided with a plurality of bumps arranged in a peripheral alignment, a substrate provided with a plurality of electrodes, and an insulating resin adhesive film. The semiconductor chip is affixed to the substrate via the insulating resin adhesive film such that the electrodes are in positions corresponding to the positions of the bumps. The insulating resin adhesive film has a minimum melt viscosity of 8×103 to 1×105 Pa·s, covers 70 to 90% the area of the region enclosed with the plurality of bumps, and heat cured. The bumps and the electrodes corresponding thereto are arranged so that they are opposed to each other and establish metallic contact therebetween. A periphery of the insulating resin adhesive film is defined between the plurality of bumps and the outer edge of the semiconductor chip, exclusive.
    Type: Application
    Filed: May 16, 2016
    Publication date: September 8, 2016
    Applicant: Dexerials Corporation
    Inventors: Kazunori HAMAZAKI, Takashi MATSUMURA, Daisuke SATO, Yasuhiro SUGA
  • Patent number: 9368374
    Abstract: A method of manufacturing a semiconductor device is provided. The method includes placing a semiconductor chip by flip-chip mounting on a substrate by using an insulating resin adhesive film (NCF) and preventing overflow of the NCF and the intervention of an insulating resin or an inorganic filler between a bump and an electrode during hot pressing. The method also includes temporarily affixing an NCF of a size that is substantially 60 to 100% the area of a region enclosed with a plurality of bumps of the semiconductor chip arranged in a peripheral alignment, and having a minimum melt viscosity of 2×102 to 1×105 Pa·s, to the region enclosed with a plurality of electrodes of the substrate corresponding to the bumps, and aligning the semiconductor chip and the substrate with each other such that the bumps and the electrodes corresponding thereto are opposed to each other.
    Type: Grant
    Filed: February 23, 2010
    Date of Patent: June 14, 2016
    Assignee: Dexerials Corporation
    Inventors: Kazunori Hamazaki, Takashi Matsumura, Daisuke Sato, Yasuhiro Suga
  • Patent number: 8486212
    Abstract: An electronic component mounting apparatus is capable of significantly reducing a warpage amount of an electronic component warped in a case of thermocompression bonding using a conductive adhesive agent having conductive particles and a low minimum melt viscosity where a thin electronic component having a thickness smaller than or equal to 200 ?m is mounted on a wiring board. In the mounting apparatus, an anisotropic conductive adhesive film having the minimum melt viscosity lower than or equal to 1.0×103 Pa·s is placed on a wiring board placed on a base, and an IC chip having a thickness smaller than or equal to 200 ?m is placed on the anisotropic conductive adhesive film. In the mounting apparatus, the IC chip is pressurized by a thermocompression bonding head having a compression bonding portion made of elastomer having a rubber hardness lower than or equal to 60, so that the IC chip is bonded onto the wiring board by thermocompression.
    Type: Grant
    Filed: November 13, 2008
    Date of Patent: July 16, 2013
    Assignee: Dexerials Corporation
    Inventor: Kazunori Hamazaki
  • Patent number: 8419888
    Abstract: An electronic component mounting apparatus is capable of significantly reducing a warpage amount of an electronic component warped in a case of thermocompression bonding using a non-conductive adhesive agent having a low minimum melt viscosity and having no conductive particle where a thin electronic component having a thickness smaller than or equal to 200 ?m is mounted on a wiring board. In the mounting apparatus, a non-conductive adhesive film having the minimum melt viscosity lower than or equal to 1.0×103 Pa·s is placed on a wiring board placed on a base, and an IC chip having a thickness smaller than or equal to 200 ?m is placed on the non-conductive adhesive film. In the mounting apparatus, the IC chip is pressurized by a thermocompression bonding head having a compression bonding portion made of elastomer having a rubber hardness lower than or equal to 60, so that the IC chip is bonded onto the wiring board by thermocompression.
    Type: Grant
    Filed: November 13, 2008
    Date of Patent: April 16, 2013
    Assignee: Dexerials Corporation
    Inventor: Kazunori Hamazaki
  • Patent number: 8409932
    Abstract: A semiconductor chip is temporarily fixed on a circuit board by having a thermosetting adhesive film in between. A sealing resin film is provided with a mold release film, and a thermosetting sealing resin layer, which is laminated on the mold release film and has a film thickness 0.5 to 2 times the thickness of the semiconductor chip. The sealing resin film is arranged on the semiconductor chip so that the thermosetting sealing resin layer faces the semiconductor chip. Heat is applied to the side of the circuit board, while applying pressure to the sealing resin film from the side of the mold release film by using a rubber head having a rubber hardness of 5-100 to bond the semiconductor chip on the circuit board. After sealing the semiconductor chip with the resin, the mold release film is peeled.
    Type: Grant
    Filed: October 30, 2008
    Date of Patent: April 2, 2013
    Assignee: Sony Chemical & Information Device Corporation
    Inventors: Yasuhiro Suga, Kazunori Hamazaki
  • Publication number: 20120222808
    Abstract: To mount electronic components with different types of electrodes en masse on a substrate, the present invention comprises a heating section that heats an electrode of a first electronic component and an electrode of a second electronic component among the plurality of electronic components; a heat releasing section that releases heat from the electrode of the first electronic component and the electrode of the second electronic component; a first thermally conductive member disposed between the electrode of the first electronic component and the heating section or the heat releasing section; and a second thermally conductive member disposed between the electrode of the second electronic component and the heating section or the heat releasing section. The first thermally conductive member and the second thermally conductive member have different amounts of heat transfer per unit time.
    Type: Application
    Filed: May 13, 2012
    Publication date: September 6, 2012
    Applicant: SONY CHEMICAL & INFORMATION DEVICE CORPORATION
    Inventor: Kazunori HAMAZAKI
  • Publication number: 20110237028
    Abstract: A method of manufacturing a semiconductor device is provided. The method includes placing a semiconductor chip by flip-chip mounting on a substrate by using an insulating resin adhesive film (NCF) and preventing overflow of the NCF and the intervention of an insulating resin or an inorganic filler between a bump and an electrode during hot pressing. The method also includes temporarily affixing an NCF of a size that is substantially 60 to 100% the area of a region enclosed with a plurality of bumps of the semiconductor chip arranged in a peripheral alignment, and having a minimum melt viscosity of 2×102 to 1×105 Pa·s, to the region enclosed with a plurality of electrodes of the substrate corresponding to the bumps, and aligning the semiconductor chip and the substrate with each other such that the bumps and the electrodes corresponding thereto are opposed to each other.
    Type: Application
    Filed: February 23, 2010
    Publication date: September 29, 2011
    Applicant: SONY CHEMICAL & INFORMATION DEVICE CORPORATION
    Inventors: Kazunori Hamazaki, Takashi Matsumura, Daisuke Sato, Yasuhiro Suga
  • Publication number: 20110017397
    Abstract: An electronic component mounting apparatus is capable of significantly reducing a warpage amount of an electronic component warped in a case of thermocompression bonding using a non-conductive adhesive agent having a low minimum melt viscosity and having no conductive particle where a thin electronic component having a thickness smaller than or equal to 200 ?m is mounted on a wiring board. In the mounting apparatus, a non-conductive adhesive film having the minimum melt viscosity lower than or equal to 1.0×103 Pa·s is placed on a wiring board placed on a base, and an IC chip having a thickness smaller than or equal to 200 ?m is placed on the non-conductive adhesive film. In the mounting apparatus, the IC chip is pressurized by a thermocompression bonding head having a compression bonding portion made of elastomer having a rubber hardness lower than or equal to 60, so that the IC chip is bonded onto the wiring board by thermocompression.
    Type: Application
    Filed: November 13, 2008
    Publication date: January 27, 2011
    Applicant: SONY CHEMICAL & INFORMATION DEVICE CORPORATION
    Inventor: Kazunori Hamazaki
  • Publication number: 20100308476
    Abstract: A semiconductor chip is temporarily fixed on a circuit board by having a thermosetting adhesive film in between. A sealing resin film is provided with a mold release film, and a thermosetting sealing resin layer, which is laminated on the mold release film and has a film thickness 0.5 to 2 times the thickness of the semiconductor chip. The sealing resin film is arranged on the semiconductor chip so that the thermosetting sealing resin layer faces the semiconductor chip. Heat is applied to the side of the circuit board, while applying pressure to the sealing resin film from the side of the mold release film by using a rubber head having a rubber hardness of 5-100 to bond the semiconductor chip on the circuit board. After sealing the semiconductor chip with the resin, the mold release film is peeled.
    Type: Application
    Filed: October 30, 2008
    Publication date: December 9, 2010
    Applicant: SONY CHEMICAL & INFORMATION DEVICE CORPORATION
    Inventors: Yasuhiro Suga, Kazunori Hamazaki
  • Publication number: 20100288416
    Abstract: An electronic component mounting apparatus is capable of significantly reducing a warpage amount of an electronic component warped in a case of thermocompression bonding using a conductive adhesive agent having conductive particles and a low minimum melt viscosity where a thin electronic component having a thickness smaller than or equal to 200 ?m is mounted on a wiring board. In the mounting apparatus, an anisotropic conductive adhesive film having the minimum melt viscosity lower than or equal to 1.0×103 Pa·s is placed on a wiring board placed on a base, and an IC chip having a thickness smaller than or equal to 200 ?m is placed on the anisotropic conductive adhesive film. In the mounting apparatus, the IC chip is pressurized by a thermocompression bonding head having a compression bonding portion made of elastomer having a rubber hardness lower than or equal to 60, so that the IC chip is bonded onto the wiring board by thermocompression.
    Type: Application
    Filed: November 13, 2008
    Publication date: November 18, 2010
    Applicant: SONY CHEMICAL & INFORMATION DEVICE CORPORATION
    Inventor: Kazunori Hamazaki