Patents by Inventor Eiji Hayashishita

Eiji Hayashishita 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: 11984341
    Abstract: A component-manufacturing tool includes a frame body and a holding film covering an opening, wherein the frame body includes a first frame and a second frame; the holding film includes a base layer and a holding layer provided on one surface of the base layer, and the holding film is sandwiched and held between the first frame and the second frame in a stretched state; and a ratio RE1 (=E?(100)/E?(25)) of an elastic modulus E?(100° C.) of the base layer to an elastic modulus E?(25° C.) of the base layer is 0.2?RE1?1, and E?(25) is 35 MPa or more and 3500 MPa or less. A component-manufacturing method includes a component holding step of holding components to the holding layer of the component-manufacturing tool; and a chucking step of chucking and fixing the holding film, to which holds the components, to a surface of a heated chuck table.
    Type: Grant
    Filed: May 8, 2018
    Date of Patent: May 14, 2024
    Assignee: MITSUI CHEMICALS TOHCELLO, INC.
    Inventor: Eiji Hayashishita
  • Patent number: 11942349
    Abstract: Provided are a film for manufacturing semiconductor component, a film for electronic component manufacture, a method for manufacturing a semiconductor component using such a film for manufacturing semiconductor component, and a method for manufacturing an electronic component using such a film for electronic component manufacture. The film for component manufacture includes a base layer and an adhesive layer provided on one surface side of the base layer, and the Ra (?m) of the surface of one side of the base layer on which the adhesive layer is not provided is 0.1 to 2.0, and the Rz (?m) is 1.0 to 15. The method using the film for component manufacture includes a segmenting step, a pickup step, and an evaluation step prior to the pickup step.
    Type: Grant
    Filed: January 31, 2022
    Date of Patent: March 26, 2024
    Assignee: MITSUI CHEMICALS TOHCELLO, INC.
    Inventor: Eiji Hayashishita
  • Publication number: 20230298924
    Abstract: Provided are a protective film and a back grinding method for a semiconductor wafer, which can suppress occurrence of suction defect. A protective film is a film that protects a surface of a semiconductor wafer on which a circuit is formed when a back surface of the semiconductor wafer is ground in a state where the surface of the semiconductor wafer is sucked to a fixture. The protective film has a pressure-sensitive adhesive layer, a base material layer, and an auxiliary layer. The pressure-sensitive adhesive layer is a layer to be stuck to the semiconductor wafer, the auxiliary layer is a layer to be contact to the fixture, and the semiconductor wafer is a semiconductor wafer having a level difference on an outer peripheral edge of the surface on which the circuit is formed.
    Type: Application
    Filed: July 7, 2021
    Publication date: September 21, 2023
    Applicant: MITSUI CHEMICALS TOHCELLO, INC.
    Inventor: Eiji HAYASHISHITA
  • Patent number: 11747388
    Abstract: A method for manufacturing electronic apparatus includes: a step (A) of preparing a structure provided with an adhesive film and one or two or more electronic components affixed to an adhesive surface of the adhesive film; a step (B) of disposing the structure in the electronic component testing apparatus such that the electronic component is positioned over an electronic component installation region of a sample stand of the electronic component testing apparatus in a defined manner; a step (C) of evaluating the properties of the electronic component in a state of being affixed to the adhesive film with the probe terminal being in contact with a terminal of the electronic component; and a step (D) of picking up the electronic component from the adhesive film after the step (C). A defined sample stand is also provided.
    Type: Grant
    Filed: February 18, 2021
    Date of Patent: September 5, 2023
    Assignee: MITSUI CHEMICALS TOHCELLO, INC.
    Inventor: Eiji Hayashishita
  • Patent number: 11535776
    Abstract: Provided is a film for manufacturing a semiconductor part in which an evaluation step accompanied with a temperature change, a segmenting step, and a pickup step can be commonly performed, a method for manufacturing a semiconductor part, a semiconductor part, and an evaluation method. The film includes a base layer, and an adhesive layer disposed on one surface side of the base layer, wherein the ratio RE (=E?(160)/E?(?40)) of the elastic modulus of the base layer at 160° C. to the elastic modulus of the base layer at ?40° C. is RE?0.01, and the elastic modulus E?(?40) is 10 MPa to less than 1000 MPa. The method includes bonding the adhesive layer to a back surface of a semiconductor wafer, separating the semiconductor wafer into segments to obtain semiconductor parts, and separating the semiconductor parts from the adhesive layer, and includes a step of evaluating.
    Type: Grant
    Filed: October 29, 2020
    Date of Patent: December 27, 2022
    Assignee: MITSUI CHEMICALS TOHCELLO, INC.
    Inventor: Eiji Hayashishita
  • Patent number: 11453208
    Abstract: An adhesive laminate film has a heat-resistant resin layer, a flexible resin layer, and an adhesive resin layer in this order, a peel strength P0 between the heat-resistant resin layer and the flexible resin layer, which is based on JIS Z0237 and measured under defined conditions, is equal to or more than 0.01 N/25 mm and equal to or less than 2.0 N/25 mm, and a peel strength P1 between the heat-resistant resin layer and the flexible resin layer after a thermal treatment of the adhesive laminate film at 160° C. for four hours is equal to or more than 0.05 N/25 mm and equal to or less than 1.5 N/25 mm.
    Type: Grant
    Filed: November 16, 2017
    Date of Patent: September 27, 2022
    Assignee: MITSUI CHEMICAL TOHCELLO, INC.
    Inventor: Eiji Hayashishita
  • Publication number: 20220157634
    Abstract: Provided are a film for manufacturing semiconductor component, a film for electronic component manufacture, a method for manufacturing a semiconductor component using such a film for manufacturing semiconductor component, and a method for manufacturing an electronic component using such a film for electronic component manufacture. The film for component manufacture includes a base layer and an adhesive layer provided on one surface side of the base layer, and the Ra (?m) of the surface of one side of the base layer on which the adhesive layer is not provided is 0.1 to 2.0, and the Rz (?m) is 1.0 to 15. The method using the film for component manufacture includes a segmenting step, a pickup step, and an evaluation step prior to the pickup step.
    Type: Application
    Filed: January 31, 2022
    Publication date: May 19, 2022
    Applicant: MITSUI CHEMICALS TOHCELLO, INC.
    Inventor: Eiji HAYASHISHITA
  • Patent number: 11276600
    Abstract: Provided are a film for manufacturing semiconductor component, a film for electronic component manufacture, a method for manufacturing a semiconductor component using such a film for manufacturing semiconductor component, and a method for manufacturing an electronic component using such a film for electronic component manufacture. The film for component manufacture includes a base layer and an adhesive layer provided on one surface side of the base layer, and the Ra (?m) of the surface of one side of the base layer on which the adhesive layer is not provided is 0.1 to 2.0, and the Rz (?m) is 1.0 to 15. The method using the film for component manufacture includes a segmenting step, a pickup step, and an evaluation step prior to the pickup step.
    Type: Grant
    Filed: March 14, 2017
    Date of Patent: March 15, 2022
    Assignee: MITSUI CHEMICALS TOHCELLO, INC.
    Inventor: Eiji Hayashishita
  • Patent number: 11251062
    Abstract: Provided is a component-manufacturing film that includes a first region S1 and a second region S2 disposed so as to surround the region S1; the region S1 is formed of a base layer and an adhesive layer provided on one surface side of the base layer; the region S2 is formed of the base layer, the adhesive layer, and an additional layer affixed onto the layer. In the temperature range of 190° C. or lower, a tensile elastic modulus of the additional layer is equal to or greater than the tensile elastic modulus of the base layer. Further provided are a component-manufacturing tool and method, the latter including a component fixing step; a film placement step of performing placement so that the boundary between the region S1 and the region S2 is located inside with respect to an edge of the chuck table; a chucking step; and a heating step.
    Type: Grant
    Filed: January 26, 2018
    Date of Patent: February 15, 2022
    Assignee: MITSUI CHEMICALS TOHCELLO, INC.
    Inventors: Eiji Hayashishita, Hirokazu Takahashi, Kazuhide Fukura
  • Patent number: 11107789
    Abstract: A method for manufacturing a semiconductor device according to the present invention includes at least the following three steps: (A) a step of preparing a first structure (100) including an adhesive laminate film (50) having a heat-resistant resin layer (10), a flexible resin layer (20) and an adhesive resin layer (30) in this order, and a first semiconductor component (60) adhered to the adhesive resin layer (30) and having a first terminal (65); (B) a step of performing solder reflow processing on the first structure (100) in a state where the first semiconductor component (60) is adhered to the adhesive resin layer (30); and (C) a step of, after the step (B), peeling the heat-resistant resin layer (10) from the adhesive laminate film (50).
    Type: Grant
    Filed: March 27, 2017
    Date of Patent: August 31, 2021
    Assignee: MITSUI CHEMICALS TOHCELLO, INC.
    Inventor: Eiji Hayashishita
  • Publication number: 20210217644
    Abstract: A component manufacturing method includes a step of obtaining a holding tool. The holding tool includes: a frame body having an opening; and a holding film placed on the frame body. The step is a step of placing the holding film on the frame body while stretching the holding film in at least three different directions or in all directions to the frame body. The holding film includes a base layer and a holding layer. The holding tool forming device includes: a mechanism that pushes a plain film from a base layer side to bring about a stretched state; a mechanism that fixes the plain film to the frame body such that the stretched state is maintained; and a mechanism that isolates an unnecessary portion from the plain film to obtain the holding film.
    Type: Application
    Filed: February 18, 2019
    Publication date: July 15, 2021
    Applicant: MITSUI CHEMICALS TOHCELLO, INC.
    Inventor: Eiji HAYASHISHITA
  • Patent number: 11047900
    Abstract: A method for manufacturing electronic apparatus includes: a step (A) of preparing a structure provided with an adhesive film and one or two or more electronic components affixed to an adhesive surface of the adhesive film; a step (B) of disposing the structure in the electronic component testing apparatus such that the electronic component is positioned over an electronic component installation region of a sample stand of the electronic component testing apparatus in a defined manner; a step (C) of evaluating the properties of the electronic component in a state of being affixed to the adhesive film with the probe terminal being in contact with a terminal of the electronic component; and a step (D) of picking up the electronic component from the adhesive film after the step (C). A defined sample stand is also provided.
    Type: Grant
    Filed: October 24, 2017
    Date of Patent: June 29, 2021
    Assignee: MITSUI CHEMICALS TOHCELLO, INC.
    Inventor: Eiji Hayashishita
  • Publication number: 20210172993
    Abstract: A method for manufacturing electronic apparatus includes: a step (A) of preparing a structure provided with an adhesive film and one or two or more electronic components affixed to an adhesive surface of the adhesive film; a step (B) of disposing the structure in the electronic component testing apparatus such that the electronic component is positioned over an electronic component installation region of a sample stand of the electronic component testing apparatus in a defined manner; a step (C) of evaluating the properties of the electronic component in a state of being affixed to the adhesive film with the probe terminal being in contact with a terminal of the electronic component; and a step (D) of picking up the electronic component from the adhesive film after the step (C). A defined sample stand is also provided.
    Type: Application
    Filed: February 18, 2021
    Publication date: June 10, 2021
    Applicant: MITSUI CHEMICALS TOHCELLO, INC.
    Inventor: Eiji HAYASHISHITA
  • Publication number: 20210151340
    Abstract: In order to provide a component manufacturing apparatus and a component manufacturing method that can normally chuck and fix a component holding film to a chuck table in a heated state, the present component manufacturing apparatus 1 includes a chucking and fixing means 20 that chucks and fixes a component holding film to a heated chucking surface 21a, and a preventing means 30 that prevents heat convection, occurring on the chucking surface 21a, from contacting the film. The present component manufacturing method includes a setting step of chucking and fixing the film to the heated chucking surface 21a, and the setting step includes a preventing step of preventing heat convection, occurring on the chucking surface 21a, from contacting the film.
    Type: Application
    Filed: May 30, 2018
    Publication date: May 20, 2021
    Applicant: MITSUI CHEMICALS TOHCELLO, INC.
    Inventor: Eiji HAYASHISHITA
  • Publication number: 20210047543
    Abstract: Provided is a film for manufacturing a semiconductor part in which an evaluation step accompanied with a temperature change, a segmenting step, and a pickup step can be commonly performed, a method for manufacturing a semiconductor part, a semiconductor part, and an evaluation method. The film includes a base layer, and an adhesive layer disposed on one surface side of the base layer, wherein the ratio RE (=E?(160)/E?(?40)) of the elastic modulus of the base layer at 160° C. to the elastic modulus of the base layer at ?40° C. is RE?0.01, and the elastic modulus E?(?40) is 10 MPa to less than 1000 MPa. The method includes bonding the adhesive layer to a back surface of a semiconductor wafer, separating the semiconductor wafer into segments to obtain semiconductor parts, and separating the semiconductor parts from the adhesive layer, and includes a step of evaluating.
    Type: Application
    Filed: October 29, 2020
    Publication date: February 18, 2021
    Applicant: MITSUI CHEMICALS TOHCELLO, INC.
    Inventor: Eiji HAYASHISHITA
  • Patent number: 10858547
    Abstract: Provided is a film for manufacturing a semiconductor part in which an evaluation step accompanied with a temperature change, a segmenting step, and a pickup step can be commonly performed, a method for manufacturing a semiconductor part, a semiconductor part, and an evaluation method. The film includes a base layer, and an adhesive layer disposed on one surface side of the base layer, wherein the ratio RE (=E?(160)/E?(?40)) of the elastic modulus of the base layer at 160° C. to the elastic modulus of the base layer at ?40° C. is RE?0.01, and the elastic modulus E?(?40) is 10 MPa to less than 1000 MPa. The method includes bonding the adhesive layer to a back surface of a semiconductor wafer, separating the semiconductor wafer into segments to obtain semiconductor parts, and separating the semiconductor parts from the adhesive layer, and includes a step of evaluating.
    Type: Grant
    Filed: June 14, 2016
    Date of Patent: December 8, 2020
    Assignee: MITSUI CHEMICALS TOHCELLO, INC.
    Inventor: Eiji Hayashishita
  • Patent number: 10809293
    Abstract: A method for manufacturing electronic apparatus includes: a step (A) of preparing a structure provided with an adhesive film and at least one electronic component affixed to an adhesive surface of the adhesive film; a step (B) of disposing the structure in an electronic component testing apparatus such that the electronic component is positioned over an electronic component installation region of a sample stand with the adhesive film interposed between the electronic component and the electronic component installation region, the electronic component testing apparatus being provided with a probe card at a position facing the sample stand and includes a probe terminal; a step (C) of evaluating the properties of the electronic component while being affixed to the adhesive film with the probe terminal being in contact with a terminal of the electronic component; and a subsequent step (D) of picking up the electronic component from the adhesive film.
    Type: Grant
    Filed: October 24, 2017
    Date of Patent: October 20, 2020
    Assignee: MITSUI CHEMICALS TOCHELLO, INC.
    Inventor: Eiji Hayashishita
  • Publication number: 20200312810
    Abstract: A method for manufacturing a semiconductor device according to the present invention includes at least the following three steps: (A) a step of preparing a first structure (100) including an adhesive laminate film (50) having a heat-resistant resin layer (10), a flexible resin layer (20) and an adhesive resin layer (30) in this order, and a first semiconductor component (60) adhered to the adhesive resin layer (30) and having a first terminal (65); (B) a step of performing solder reflow processing on the first structure (100) in a state where the first semiconductor component (60) is adhered to the adhesive resin layer (30); and (C) a step of, after the step (B), peeling the heat-resistant resin layer (10) from the adhesive laminate film (50).
    Type: Application
    Filed: March 27, 2017
    Publication date: October 1, 2020
    Applicant: MITSUI CHEMICALS TOHCELLO, INC.
    Inventor: Eiji Hayashishita
  • Publication number: 20200171802
    Abstract: An adhesive laminate film has a heat-resistant resin layer, a flexible resin layer, and an adhesive resin layer in this order, a peel strength P0 between the heat-resistant resin layer and the flexible resin layer, which is based on JIS Z0237 and measured under defined conditions, is equal to or more than 0.01 N/25 mm and equal to or less than 2.0 N/25 mm, and a peel strength P1 between the heat-resistant resin layer and the flexible resin layer after a thermal treatment of the adhesive laminate film at 160° C. for four hours is equal to or more than 0.05 N/25 mm and equal to or less than 1.5 N/25 mm.
    Type: Application
    Filed: November 16, 2017
    Publication date: June 4, 2020
    Applicant: MITSUI CHEMICALS TOHCELLO, INC.
    Inventor: Eiji HAYASHISHITA
  • Publication number: 20200075382
    Abstract: A component-manufacturing tool includes a frame body and a holding film covering an opening, wherein the frame body includes a first frame and a second frame; the holding film includes a base layer and a holding layer provided on one surface of the base layer, and the holding film is sandwiched and held between the first frame and the second frame in a stretched state; and a ratio RE1 (=E?(100)/E?(25)) of an elastic modulus E?(100° C.) of the base layer to an elastic modulus E?(25° C.) of the base layer is 0.2?RE1?1, and E?(25) is 35 MPa or more and 3500 MPa or less. A component-manufacturing method includes a component holding step of holding components to the holding layer of the component-manufacturing tool; and a chucking step of chucking and fixing the holding film, to which holds the components, to a surface of a heated chuck table.
    Type: Application
    Filed: May 8, 2018
    Publication date: March 5, 2020
    Applicant: MITSUI CHEMICALS TOHCELLO, INC.
    Inventor: Eiji HAYASHISHITA