Patents Assigned to Planar Solutions LLC
  • Patent number: 6776696
    Abstract: A continuous CMP process for polishing multiple conductive and non-conductive layers on a semiconductor substrate. The continuous process comprises the steps of: (a) disposing a substrate on a platen; (b) polishing a first layer using both a mechanical means and a chemical means; and (c) polishing a second layer upon adjusting at least one parameter in either the mechanical means, chemical means, or both.
    Type: Grant
    Filed: October 28, 2002
    Date of Patent: August 17, 2004
    Assignee: Planar Solutions LLC
    Inventors: Deepak Mahulikar, Richard J. Jenkins
  • Patent number: 6749488
    Abstract: The invention relates to a novel CMP slurry composition used for polishing metals, the composition comprising: (a) a dispersion solution comprising an abrasive; and (b) an oxidizer. The slurry composition has a large particle count of less than about 150,000 particles having a particle size greater than 0.5 &mgr;m in 30 &mgr;L of slurry, which is achieved by filtering the slurry composition prior to use. Also, the inclusion of a chemical activity enhancer, such as, an amine and a corrosion inhibitor, results in the appropriate copper removal rate without increasing static etch rates.
    Type: Grant
    Filed: October 9, 2002
    Date of Patent: June 15, 2004
    Assignee: Planar Solutions LLC
    Inventors: Anthony Mark Pasqualoni, Deepak Mahulikar, Larry A. LaFollette, Richard J. Jenkins