Patents by Inventor Tsuyoshi TAZAWA

Tsuyoshi TAZAWA 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: 20220336281
    Abstract: A collet for compressing an adhesive-attached chip, the collet including a main body having a first pressing surface to which a pressing force from a compressing device is directly transmitted, and a projecting portion projecting from the main body and having a second pressing surface provided along an outer circumference of the first pressing surface, the first pressing surface and the second pressing surface forming a holding surface for holding the adhesive-attached chip.
    Type: Application
    Filed: September 3, 2020
    Publication date: October 20, 2022
    Inventors: Tsuyoshi TAZAWA, Kei ITAGAKI, Yoshinobu OZAKI, Ayako TAIRA
  • Publication number: 20220216114
    Abstract: A method for evaluating pickup property of a dicing/die-bonding integrated film including a base layer, an adhesive, and a bonding adhesive layer in order, the method including preparing a laminate including the dicing/die-bonding integrated film and a wafer having a thickness of 10 to 100 ?m laminated on the bonding adhesive layer, singulating the wafer into a plurality of chips having an area of 9 mm2 or less, pushing a center portion of the chip from a side of the base layer, and measuring a peeling strength when an edge of the chip is peeled off from the adhesive layer.
    Type: Application
    Filed: May 10, 2019
    Publication date: July 7, 2022
    Inventors: Tsuyoshi TAZAWA, Naohiro KIMURA, Keisuke OHKUBO, Yoshinobu OZAKI