Patents Assigned to Planar Solutions LLC
  • Patent number: 8192644
    Abstract: The present disclosure provides a concentrate for use in chemical mechanical polishing slurries, and a method of diluting that concentrate to a point of use slurry. The concentrate comprises abrasive, complexing agent, and corrosion inhibitor, and the concentrate is diluted with water and oxidizer. These components are present in amounts such that the concentrate can be diluted at very high dilution ratios, without affecting the polishing performance.
    Type: Grant
    Filed: October 16, 2009
    Date of Patent: June 5, 2012
    Assignee: Fujifilm Planar Solutions, LLC
    Inventors: Hyungjun Kim, Richard Wen, Bin Hu, Minae Tanaka, Deepak Mahulikar
  • 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