Patents by Inventor Shigehiko KATO

Shigehiko KATO 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: 11391756
    Abstract: As a semiconductor device is miniaturized, a scribe area on a wafer also tends to decrease. Accordingly, it is necessary to reduce the size of a TEG arranged in the scribe area, and efficiently arrange an electrode pad for probe contact. Therefore, it is necessary to associate probes and the efficient layout of the electrode pad. The purpose of the present invention is to provide a technique for associating probes and the layout of an electrode pad of a TEG to facilitate the evaluation of electrical characteristics. According to the present invention, the above described problem can be solved by arranging a plurality of probes in a fan shape or manufacturing the probes with micro electro mechanical systems (MEMS) technology.
    Type: Grant
    Filed: February 6, 2018
    Date of Patent: July 19, 2022
    Assignee: Hitachi High-Tech Corporation
    Inventors: Ryo Hirano, Takayuki Mizuno, Tomohisa Ohtaki, Toru Fujimura, Shigehiko Kato, Yasuhiko Nara, Katsuo Ohki, Akira Kageyama, Masaaki Komori
  • Publication number: 20210048450
    Abstract: As a semiconductor device is miniaturized, a scribe area on a wafer also tends to decrease. Accordingly, it is necessary to reduce the size of a TEG arranged in the scribe area, and efficiently arrange an electrode pad for probe contact. Therefore, it is necessary to associate probes and the efficient layout of the electrode pad. The purpose of the present invention is to provide a technique for associating probes and the layout of the electrode pads of a TEG so as to facilitate the evaluation of electrical characteristics. According to a method for manufacturing a semiconductor device of the present invention, the above-described problems can be solved by providing a layout of a TEG electrode pad corresponding to a plurality of probes arranged in a fan shape or probes manufactured by Micro Electro Mechanical Systems (MEMS) technology.
    Type: Application
    Filed: February 6, 2018
    Publication date: February 18, 2021
    Inventors: Tomohisa OHTAKI, Takayuki MIZUNO, Ryo HIRANO, Toru FUJIMURA, Shigehiko KATO, Yasuhiko NARA, Katsuo OHKI, Akira KAGEYAMA, Masaaki KOMORI
  • Publication number: 20210033642
    Abstract: As a semiconductor device is miniaturized, a scribe area on a wafer also tends to decrease. Accordingly, it is necessary to reduce the size of a TEG arranged in the scribe area, and efficiently arrange an electrode pad for probe contact. Therefore, it is necessary to associate probes and the efficient layout of the electrode pad. The purpose of the present invention is to provide a technique for associating probes and the layout of an electrode pad of a TEG to facilitate the evaluation of electrical characteristics. According to the present invention, the above described problem can be solved by arranging a plurality of probes in a fan shape or manufacturing the probes with micro electro mechanical systems (MEMS) technology.
    Type: Application
    Filed: February 6, 2018
    Publication date: February 4, 2021
    Inventors: Ryo HIRANO, Takayuki MIZUNO, Tomohisa OHTAKI, Toru FUJIMURA, Shigehiko KATO, Yasuhiko NARA, Katsuo OHKI, Akira KAGEYAMA, Masaaki KOMORI
  • Publication number: 20210025936
    Abstract: As a semiconductor device is miniaturized, a scribe area on a wafer also tends to decrease. Accordingly, it is necessary to reduce the size of a TEG arranged in the scribe area, and efficiently arrange an electrode pad for probe contact. Therefore, it is necessary to associate probes and the efficient layout of the electrode pad. The purpose of the present invention is to provide a technique for associating probes and the layout of the electrode pads of a TEG so as to facilitate the evaluation of electrical characteristics. According to an evaluation apparatus for a semiconductor device of the present invention, the above described problems can be solved by providing a plurality of probes arranged in a fan shape or probes manufactured by Micro Electro Mechanical Systems (MEMS) technology.
    Type: Application
    Filed: February 6, 2018
    Publication date: January 28, 2021
    Inventors: Tomohisa OHTAKI, Takayuki MIZUNO, Ryo HIRANO, Toru FUJIMURA, Shigehiko KATO, Yasuhiko NARA, Katsuo OHKI, Akira KAGEYAMA, Masaaki KOMORI