Patents by Inventor Kenneth Chia-Kun Weng

Kenneth Chia-Kun Weng 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: 5985731
    Abstract: A method of forming a stacked capacitor structure in a semiconductor device, having metal electrode plates. After depositing the bottom electrode layer (26) and the dielectric layer (28) of the capacitor, a rough patterning step is carried out to roughly pattern or shape the bottom electrode layer and the dielectric layer, and to expose the underlying interlayer dielectric (18). A top electrode layer (32) is then blanket deposited, and another, more precise etching step is carried out to form the final shape of the capacitor element, while leaving behind a portion of the top electrode layer on the interlayer dielectric, which forms a metal interconnect (36). In one embodiment, the electrode layers are comprised of materials having a conductivity greater than doped silicon (either poly or monocrystalline), such as a metal.
    Type: Grant
    Filed: August 17, 1998
    Date of Patent: November 16, 1999
    Assignee: Motorola, Inc.
    Inventors: Kenneth Chia-Kun Weng, Christopher Sterling Lohn, Der-Gao Lin, Kevin Yun-Kang Wu, Jeffrey D. Ganger