Patents by Inventor Shi-Che Wang

Shi-Che Wang 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: 20060115774
    Abstract: A novel method for eliminating or reducing the accumulation of electrostatic charges on semiconductor wafers during spin-rinse-drying of the wafers is disclosed. The method includes rinsing a wafer; applying an ionic solution to the wafer; and spin-drying the wafer. During the spin-drying step, the ionic solution neutralizes electrostatic charges on the wafer as the wafer is rotated. This reduces the formation of defects in devices fabricated on the wafer, as well as prevents or reduces electrostatic interference with processing equipment during photolithographic and other fabrication processes.
    Type: Application
    Filed: November 30, 2004
    Publication date: June 1, 2006
    Inventors: Yu-Hsi Wang, Shi-Che Wang, Hua-Tal Lin, Shang Ho Lin, Ching-Yu Chang, Chin-Hsiang Lin