Patents by Inventor JaiHo Choi

JaiHo Choi 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).

  • Capacitor for semiconductor integrated circuit
    Patent number: 5745336
    Abstract: A semiconductor integrated circuit apparatus according to the present invention has a capacitor formed in such a manner that a ferroelectric thin film is formed after a MOS transistor has been formed on a substrate thereof, a ferroelectric thin film made of, for example, PbZrTiO.sub.3 or SrTiO.sub.3 or the like is formed into a columnar shape to form electrodes positioned in direct contact with the side wall portions of said columnar ferroelectric thin film and the top portion is removed.
    Type: Grant
    Filed: April 6, 1995
    Date of Patent: April 28, 1998
    Assignee: Hitachi, Ltd.
    Inventors: Katsuaki Saito, Michio Ohue, Takuya Fukuda, JaiHo Choi, Yukinobu Miyamoto
  • Capacitor for semiconductor integrated circuit and method of manufacturing the same
    Patent number: 5434742
    Abstract: A semiconductor integrated circuit apparatus according to the present invention has a capacitor formed in such a manner that a ferroelectric thin film is formed after a MOS transistor has been formed on a substrate thereof, a ferroelectric thin film made of, for example, PbZrTiO.sub.3 or SrTiO.sub.3 or the like is formed into a columnar shape to form electrodes positioned in direct contact with the side wall portions of said columnar ferroelectric thin film, and the top portion is removed.
    Type: Grant
    Filed: December 23, 1992
    Date of Patent: July 18, 1995
    Assignee: Hitachi, Ltd.
    Inventors: Katsuaki Saito, Michio Ohue, Takuya Fukuda, JaiHo Choi, Yukinobu Miyamoto