Patents by Inventor Jwinn Lein Su

Jwinn Lein Su 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: 5776835
    Abstract: A method is capable of providing a semiconductor device with a gate having thereon a thicker silicide or metal layer and further having a lower interconnect resistance. The method is further capable of providing the semiconductor device with a polysilicon gate having a recessed tungsten structure for prevention of short circuit between the gate and the drain or the source. For forming a grooved gate structure, a photo-resist is formed on the polysilicon gate before growing on the entire surface of the silicon substrate a silicon dioxide layer. The silicon dioxide layer and the thin gate oxidation layer on drain/source are etched vertically by a reactive ion etching until the photo-resist and the silicon surface of drain/source are exposed. A plurality of spacers are thus formed on the side walls of the photo-resist/polysilicon gate. Upon stripping the photo-resist, the grooved gate structure is formed on the semiconductor device.
    Type: Grant
    Filed: February 9, 1996
    Date of Patent: July 7, 1998
    Assignee: National Science Council
    Inventors: Ching-Fa Yeh, Jwinn Lein Su