Patents Assigned to Lam Research Group
  • Patent number: 8211846
    Abstract: The embodiments of the present invention provide improved materials for cleaning patterned substrates with fine features. The cleaning materials have advantages in cleaning patterned substrates with fine features without substantially damaging the features. The cleaning materials are fluid, either in liquid phase, or in liquid/gas phase, and deform around device features; therefore, the cleaning materials do not substantially damage the device features or reduce damage all together. The cleaning materials containing polymers of a polymeric compound with large molecular weight capture the contaminants on the substrate. In addition, the cleaning materials entrap the contaminants and do not return the contaminants to the substrate surface. The polymers of one or more polymeric compounds with large molecular weight form long polymer chains, which can also be cross-linked to form a network (or polymeric network).
    Type: Grant
    Filed: June 2, 2008
    Date of Patent: July 3, 2012
    Assignee: Lam Research Group
    Inventors: David S. L. Mui, Satish Srinivasan, Grant Peng, Ji Zhu, Shih-Chung Kon, Dragan Podlesnik, Arjun Mendiratta