Patents by Inventor Ling-Yuk Tsang

Ling-Yuk Tsang 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).

  • Publication number: 20020061610
    Abstract: A method of fabricating an embedded dynamic random access memory. After a gate and a source/drain region are formed on a semiconductor substrate, an etch stop layer and a dielectric layer are sequentially formed. The dielectric layer is etched back and patterned, and only the dielectric layer over the source/drain region in the memory circuit region remain. The exposed etch stop layer is removed to expose the salicide layer on the gate and the source/drain region in the logic circuit region.
    Type: Application
    Filed: December 4, 2000
    Publication date: May 23, 2002
    Inventors: Ling-Yuk Tsang, Sun-Chieh Chien, Le-Tien Jung, Der-Yuan Wu