Patents by Inventor Shekhar Pramanik

Shekhar Pramanik 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: 6015747
    Abstract: A method for manufacturing a field effect transistor (100) includes forming source and drain regions (110, 112) in a semiconductor substrate (102) and forming a polysilicon gate (104) on a surface (106) of the semiconductor substrate adjacent to the source and drain regions. A masking layer (136) is formed, covering substantially all the semiconductor substrate. Portions of the masking layer are then selectively removed to expose at least selected portions of the polysilicon gate. Selected portions of the polysilicon gate are partially etched. By selective electroless metal deposition, a metal layer (146) is formed on the etched selected portions of the polysilicon gate. In an alternative embodiment, the masking layer is removed before selective deposition of the electroless metal, so that electroless metal is simultaneously deposited on the polysilicon gate and the source region and the drain region.
    Type: Grant
    Filed: December 7, 1998
    Date of Patent: January 18, 2000
    Assignee: Advanced Micro Device
    Inventors: Sergey Lopatin, Takeshi Nogami, Shekhar Pramanik