Patents by Inventor Ken IKEHATA

Ken IKEHATA 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: 11935768
    Abstract: To satisfactorily apply a protective tape to a bump wafer, an application apparatus (1) for applying a protective tape (PT) to a wafer (W) includes: an application table (60) configured to support the wafer (W); a tape holding body (30) capable of holding the protective tape (PT) and configured to supply the protective tape (PT) held by the tape holding body (30) onto the wafer (W); and a pressing member (62) configured to press the protective tape (PT) from above. The pressing member (62) includes a protective layer outer periphery retainer (620) configured to press a peripheral portion of a protective layer (PL), which is laminated on the protective tape (PT) and has an outer diameter smaller than an outer diameter of the wafer (W), to apply the protective tape (PT) to the wafer (W).
    Type: Grant
    Filed: April 24, 2018
    Date of Patent: March 19, 2024
    Assignees: DISCO HI-TEC EUROPE GMBH, TAKATORI CORPORATION
    Inventors: Karl Heinz Priewasser, Ken Ikehata, Yoshinori Kakinuma, Yosuke Ishimatsu
  • Patent number: 11469120
    Abstract: To reduce residual stress generated on a protective tape at a time of application of the protective tape to a semiconductor wafer, provided is an application apparatus (1) for applying a protective tape (PT) to a semiconductor wafer (W), including: a tape conveyance mechanism (2) configured to convey the protective tape (PT) temporarily applied to a base material (BM) to a peeling position; a tape holding body (30) capable of holding the protective tape (PT); a holding-body moving mechanism (31) configured to move the tape holding body (30) to the peeling position; and a peeling mechanism (4) configured to peel the base material (BM) from the protective tape (PT) held by the tape holding body (30) at the peeling position.
    Type: Grant
    Filed: April 24, 2018
    Date of Patent: October 11, 2022
    Assignees: DISCO HI-TEC EUROPE GMBH, TAKATORI CORPORATION
    Inventors: Karl Heinz Priewasser, Yoshinori Kakinuma, Yosuke Ishimatsu, Ken Ikehata
  • Publication number: 20210249294
    Abstract: To perform alignment of a protective tape having a protective layer with high accuracy, provided is an alignment device (5) to be used for applying a protective tape (PT) to a semiconductor wafer (W), including: a tape holding body (30) configured to hold the protective tape (PT) laminated with a protective layer (PL) having an outer diameter smaller than an outer diameter of the protective tape (PT), and one image pickup means (50) for imaging a plurality of parts of an outer peripheral edge portion of the protective layer (PL), wherein the alignment device is configured to determine a center position of the protective layer (PL) based on positional information on each of the plurality of parts of the outer peripheral edge portion of the protective layer (PL) through determination of the positional information on the each of the plurality of parts based on image data acquired by imaging of the image pickup means (50).
    Type: Application
    Filed: April 24, 2018
    Publication date: August 12, 2021
    Inventors: Karl Heinz PRIEWASSER, Yoshiyuki HARIOKA, Ken IKEHATA, Yoshinori KAKINUMA, Yosuke ISHIMATSU, Ryouta SAWAYAMA
  • Publication number: 20210249286
    Abstract: To reduce residual stress generated on a protective tape at a time of application of the protective tape to a semiconductor wafer, provided is an application apparatus (1) for applying a protective tape (PT) to a semiconductor wafer (W), including: a tape conveyance mechanism (2) configured to convey the protective tape (PT) temporarily applied to a base material (BM) to a peeling position; a tape holding body (30) capable of holding the protective tape (PT); a holding-body moving mechanism (31) configured to move the tape holding body (30) to the peeling position; and a peeling mechanism (4) configured to peel the base material (BM) from the protective tape (PT) held by the tape holding body (30) at the peeling position.
    Type: Application
    Filed: April 24, 2018
    Publication date: August 12, 2021
    Inventors: Karl Heinz PRIEWASSER, Yoshinori KAKINUMA, Yosuke ISHIMATSU, Ken IKEHATA
  • Publication number: 20210249285
    Abstract: To satisfactorily apply a protective tape to a bump wafer, an application apparatus (1) for applying a protective tape (PT) to a wafer (W) includes: an application table (60) configured to support the wafer (W); a tape holding body (30) capable of holding the protective tape (PT) and configured to supply the protective tape (PT) held by the tape holding body (30) onto the wafer (W); and a pressing member (62) configured to press the protective tape (PT) from above. The pressing member (62) includes a protective layer outer periphery retainer (620) configured to press a peripheral portion of a protective layer (PL), which is laminated on the protective tape (PT) and has an outer diameter smaller than an outer diameter of the wafer (W), to apply the protective tape (PT) to the wafer (W).
    Type: Application
    Filed: April 24, 2018
    Publication date: August 12, 2021
    Applicants: Disco-Hi-Tec Europe GmbH, Takatori Corporation
    Inventors: Karl Heinz PRIEWASSER, Ken IKEHATA, Yoshinori KAKINUMA, Yosuke ISHIMATSU