Patents Assigned to Wai Mun Lee
  • Publication number: 20040018949
    Abstract: A two carbon atom linkage alkanolamine compound composition comprises the two carbon atom linkage alkanolamine compound, chelating agent, and optionally, an aqueous hydroxylamine solution. The balance of the composition is made up of water, preferably high purity deionized water, another suitable polar solvent, or a combination thereof. A process for removing photoresist or other residue from a substrate, such as an integrated circuit semiconductor wafer including titanium metallurgy, comprises contacting the substrate with the composition for a time and at a temperature sufficient to remove the photoresist or other residue from the substrate. Use of the two carbon atom linkage alkanolamine compound in the composition and process provides superior residue removal without attacking titanium or other metallurgy, oxide or nitride layers on the substrate.
    Type: Application
    Filed: May 20, 2003
    Publication date: January 29, 2004
    Applicant: Wai Mun Lee
    Inventor: Wai Mun Lee