Patents by Inventor DongQing Li

DongQing Li 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: 6596653
    Abstract: A method of forming a silicon oxide layer over a substrate disposed in a high density plasma substrate processing chamber. The silicon oxide layer is formed by flowing a process gas including a silicon-containing source, an oxygen-containing source, an inert gas and a hydrogen-containing source into the substrate processing chamber and forming a high density plasma (i.e., a plasma having an ion density of at least 1×1011 ions/cm3) from the process gas to deposit said silicon oxide layer over said substrate. In one embodiment, the hydrogen-containing source in the process gas is selected from the group of H2, H2O, NH3, CH4 and C2H6.
    Type: Grant
    Filed: May 11, 2001
    Date of Patent: July 22, 2003
    Assignee: Applied Materials, Inc.
    Inventors: Zhengquan Tan, Dongqing Li, Walter Zygmunt, Tetsuya Ishikawa
  • Publication number: 20020187656
    Abstract: A method of forming a silicon oxide layer over a substrate disposed in a high density plasma substrate processing chamber. The silicon oxide layer is formed by flowing a process gas including a silicon-containing source, an oxygen-containing source, an inert gas and a hydrogen-containing source into the substrate processing chamber and forming a high density plasma (i.e., a plasma having an ion density of at least 1×1011 ions/cm3) from the process gas to deposit said silicon oxide layer over said substrate. In one embodiment, the hydrogen-containing source in the process gas is selected from the group of H2, H2O, NH3, CH4 and C2H6.
    Type: Application
    Filed: May 11, 2001
    Publication date: December 12, 2002
    Applicant: Applied Materials, Inc.
    Inventors: Zhengquan Tan, Dongqing Li, Walter Zygmunt, Tetsuya Ishikawa
  • Publication number: 20020187655
    Abstract: A method for forming a silicon oxide layer over a substrate disposed in a high density plasma substrate processing chamber. The method includes flowing a process gas that includes a silicon-containing source, an oxygen-containing source and a fluorine-containing source into the substrate processing chamber and forming a plasma from said process gas. The substrate is heated to a temperature above 450° C. during deposition of said silicon oxide layer and the deposited layer has a fluorine content of less than 1.0 atomic percent.
    Type: Application
    Filed: May 11, 2001
    Publication date: December 12, 2002
    Applicant: Applied Materials, Inc.
    Inventors: Zhengquan Tan, Dongqing Li, Walter Zygmunt