Patents by Inventor Yongfei Zhu

Yongfei Zhu 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: 5527567
    Abstract: A method of fabricating high quality layered structure oxide ferroelectric thin films. The deposition process is a chemical vapor deposition process involving chemical reaction between volatile metal organic compounds of various elements comprising the layered structure material to be deposited, with other gases in a reactor, to produce a nonvolatile solid that deposits on a suitably placed substrate such as a conducting, semiconducting, insulating, or complex integrated circuit substrate. The source materials for this process may include organometallic compounds such as alkyls, alkoxides, .beta.-diketonates or metallocenes of each individual element comprising the layered structure material to be deposited and oxygen. Preferably, the reactor in which the deposition is done is either a hot wall or a cold wall reactor and the vapors are introduced into this reactor either through a set of bubblers or through a direct liquid injection system.
    Type: Grant
    Filed: May 30, 1995
    Date of Patent: June 18, 1996
    Assignees: Ceram Incorporated, Sharp Kabushiki Kaisha, Virginia Tech Intellectual Properties, Inc
    Inventors: Seshu B. Desu, Wei Tao, Chien H. Peng, Tingkai Li, Yongfei Zhu