Patents by Inventor Kosei Kiyohara

Kosei Kiyohara 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: 20230099416
    Abstract: A method of processing a plate-shaped workpiece includes a workpiece supporting step of placing the plate-shaped workpiece on a thermocompression sheet whose area is larger than that of the plate-shaped workpiece, heating the thermocompression sheet to pressure-bond the thermocompression sheet to the plate-shaped workpiece, and supporting the plate-shaped workpiece on only the thermocompression sheet, a processing step of processing the plate-shaped workpiece to divide the plate-shaped workpiece into a plurality of chips, and a pick-up step of picking up the chips from the thermocompression sheet.
    Type: Application
    Filed: September 13, 2022
    Publication date: March 30, 2023
    Inventors: Nobuyuki FUKUSHI, Kosei KIYOHARA, Shohei TAKEDA, Gentaro TSURUTA
  • Publication number: 20230095361
    Abstract: A method of processing a plate-shaped workpiece includes a workpiece supporting step of placing a plate-shaped workpiece on an upper surface of a sheet whose area is larger than that of the plate-shaped workpiece through a liquid resin interposed therebetween and supporting the plate-shaped workpiece on only the liquid resin that has solidified and the sheet, a processing step of processing the plate-shaped workpiece to divide the plate-shaped workpiece into a plurality of chips, and a pick-up step of picking up the chips from the sheet.
    Type: Application
    Filed: September 21, 2022
    Publication date: March 30, 2023
    Inventors: Nobuyuki FUKUSHI, Kosei KIYOHARA, Shohei TAKEDA, Gentaro TSURUTA
  • Patent number: 10410904
    Abstract: Disclosed is a method of peeling a protective member from a wafer, the protective member composed of a resin and a film, the film attached to one side of the wafer through the resin in a state in which a protruding portion is formed. The method includes: a step of holding the other side of the wafer, with the protective member on the lower side; an outer circumferential edge adhered resin peeling step of grasping the protruding portion of the protective member, and pulling the protruding portion to an outer side than an outer circumferential edge of the wafer, to peel the resin adhered to the outer circumferential edge of the wafer from the outer circumferential edge of the wafer; and a step of peeling, after the outer circumferential edge adhered resin peeling step, the whole body of the protective member from the wafer.
    Type: Grant
    Filed: August 9, 2017
    Date of Patent: September 10, 2019
    Assignee: Disco Corporation
    Inventor: Kosei Kiyohara
  • Publication number: 20180053680
    Abstract: Disclosed is a method of peeling a protective member from a wafer, the protective member composed of a resin and a film, the film attached to one side of the wafer through the resin in a state in which a protruding portion is formed. The method includes: a step of holding the other side of the wafer, with the protective member on the lower side; an outer circumferential edge adhered resin peeling step of grasping the protruding portion of the protective member, and pulling the protruding portion to an outer side than an outer circumferential edge of the wafer, to peel the resin adhered to the outer circumferential edge of the wafer from the outer circumferential edge of the wafer; and a step of peeling, after the outer circumferential edge adhered resin peeling step, the whole body of the protective member from the wafer.
    Type: Application
    Filed: August 9, 2017
    Publication date: February 22, 2018
    Inventor: Kosei Kiyohara