Patents by Inventor Matthew Tiersch

Matthew Tiersch 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: 20080053002
    Abstract: A solution for forming a polishing slurry, the polishing slurry and related methods are disclosed. The solution for forming a polishing slurry may include 1 H-benzotriazole (BTA) dissolved in an ionic surfactant such as a sodium alkyl sulfate solution, and perhaps a polyacrylic acid (PAA) solution. The solution can be filtered and used in a polishing slurry. This approach to solubilizing BTA results in a high BTA concentration in a polishing slurry without addition of foreign components to the slurry or increased safety hazard. In addition, the solution is easier to ship because it is very stable (e.g., can be frozen and thawed) and has less volume compared to conventional approaches. Further, the polishing slurry performance is vastly improved due to the removal of particles that can cause scratching.
    Type: Application
    Filed: October 31, 2007
    Publication date: March 6, 2008
    Inventors: Joseph Comeau, Marina Katsnelson, Matthew Tiersch, Eric White