Patents by Inventor Kenzou Mejima

Kenzou Mejima 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: 8039305
    Abstract: In a method for bonding semiconductor wafers of the present invention, a bonding layer containing a flux-active curing agent and a thermosetting resin is interposed between a first semiconductor wafer and a second semiconductor wafer, thereby producing a semiconductor wafer stacked body in which the first and second semiconductor wafers are stacked together, and then the semiconductor wafer stacked body is compressed in a thickness direction thereof while heating it so that the first and second semiconductor wafers are fixed together by melting and solidifying solder bumps while curing the thermosetting resin, thereby producing a semiconductor wafer bonded body in which first connector portions and second connector portions are electrically connected together through solidified products obtained by melting and solidifying the solder bumps.
    Type: Grant
    Filed: April 24, 2008
    Date of Patent: October 18, 2011
    Assignee: Sumitomo Bakelite Company, Ltd.
    Inventors: Kenzou Mejima, Satoru Katsurayama, Mitsuo Sugino
  • Publication number: 20100129960
    Abstract: In a method for bonding semiconductor wafers of the present invention, a bonding layer containing a flux-active curing agent and a thermosetting resin is interposed between a first semiconductor wafer and a second semiconductor wafer, thereby producing a semiconductor wafer stacked body in which the first and second semiconductor wafers are stacked together, and then the semiconductor wafer stacked body is compressed in a thickness direction thereof while heating it so that the first and second semiconductor wafers are fixed together by melting and solidifying solder bumps while curing the thermosetting resin, thereby producing a semiconductor wafer bonded body in which first connector portions and second connector portions are electrically connected together through solidified products obtained by melting and solidifying the solder bumps.
    Type: Application
    Filed: April 24, 2008
    Publication date: May 27, 2010
    Applicant: Sumitomo Bakelite Company Limited
    Inventors: Kenzou Mejima, Satoru Katsurayama, Mitsuo Sugino