Patents by Inventor Ling H. Yow

Ling H. Yow 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: 5543350
    Abstract: A new method of forming a back diffused resistive load element is achieved. A pattern of gate electrodes and interconnection lines is formed overlying a semiconductor substrate. Source and drain regions are formed within the semiconductor substrate. An interpoly oxide layer is deposited overlying the top surfaces of the semiconductor substrate and etched away where it is not covered by a mask to provide an opening to a drain region within the semiconductor substrate and exposing a portion of a gate electrode wherein a spacer comprising interpoly oxide is left on the sidewall of the exposed gate electrode within the opening. In order to remove the interpoly oxide spacer, the interpoly oxide layer is overetched whereby the top portion of the drain region in the semiconductor substrate is etched away along with a portion of the dopant. First ions are implanted into the drain region and the exposed portion of the gate electrode.
    Type: Grant
    Filed: September 29, 1995
    Date of Patent: August 6, 1996
    Assignee: Chartered Semiconductor Manufacturing Pte Ltd
    Inventors: Keh-Fei C. Chi, Seah K. Suan, Ling H. Yow