Patents by Inventor Yasuji Takahashi

Yasuji Takahashi 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: 6069076
    Abstract: A method of manufacturing a semiconductor device having the steps of: preparing a semiconductor device structure having an interconnection structure including a pair of electrically separated interconnections disposed near each other in one layer and a conductive pattern disposed near the pair of interconnections in the same layer; and applying light having a high intensity sufficient for melting and scattering conductive material of the conductive pattern to the conductive pattern and shorting the pair of interconnections with material formed by melting, scattering, and depositing the conductive material. This method provides a semiconductor device capable of easily connecting separated interconnections formed in the same layer.
    Type: Grant
    Filed: May 7, 1997
    Date of Patent: May 30, 2000
    Assignee: Yamaha Corporation
    Inventor: Yasuji Takahashi
  • Patent number: 5877631
    Abstract: An evaluation method for a test semiconductor device having at least two wiring patterns disposed in parallel, wherein: at least one wiring pattern is grounded; a pulse voltage is applied between the grounded wiring pattern and an adjacent wiring pattern; a time required for the pulse to reciprocate along the wiring patterns and a value of a voltage including a reflected voltage between the wiring patterns are measured to judge a presence/absence of a wiring breakage or a wiring short circuit and to locate a wiring breakage point or a wiring short circuit point.
    Type: Grant
    Filed: October 9, 1996
    Date of Patent: March 2, 1999
    Assignee: Yamaha Corporation
    Inventor: Yasuji Takahashi