Patents by Inventor Bao R. Yang

Bao R. Yang 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: 5633210
    Abstract: A method for forming damage free patterned layers adjoining the edges of high step height apertures within integrated circuits. There is first provided a semiconductor substrate which has a first aperture formed therein. Formed upon the semiconductor substrate and into the first aperture is a blanket layer. The blanket layer has a second aperture formed therein where the blanket layer is formed into the first aperture. Formed then into the second aperture is a buffer layer. The buffer layer substantially planarizes the blanket layer. Formed then upon the semiconductor substrate is a blanket photoresist layer. The blanket photoresist layer and the blanket layer are then sequentially patterned to form a patterned photoresist layer and a damage free patterned layer.
    Type: Grant
    Filed: April 29, 1996
    Date of Patent: May 27, 1997
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Bao R. Yang, Sen F. Chen, Wen C. Chang, Po-Tau Chu