Patents Examined by Jeffry Lund
  • Patent number: 5525157
    Abstract: The present invention relates to improved injectors for use in CVD reactor systems, and more specifically for use in epitaxial deposition systems for processing a single wafer-at-a-time. The improved injectors of the present invention are used to provide a predetermined desired shaped velocity profile for the injected reactant gases for insuring a more uniform deposition on a single wafer to be processed within the reactor system. In the first embodiment, the reactant gas is fed into a horizontal gas distribution manifold cavity and distributed horizontally in both directions. The gas then passes through a manifold wall having a pattern of predetermined sized and spaced apertures therein. The size of the apertures and the distribution of these sizes, shapes the resultant velocity profile to a desired pattern.
    Type: Grant
    Filed: August 11, 1995
    Date of Patent: June 11, 1996
    Assignee: Advanced Semiconductor Materials America, Inc.
    Inventors: Mark R. Hawkins, McDonald Robinson
  • Patent number: 5468679
    Abstract: A precursor comprising a medium-length ligand carboxylate, such as a metal 2-ethylhexanoate, in a xylenes solvent is applied to an integrated circuit wafer. The wafer is baked to dry the precursor, annealed to form a layered superlattice material on the wafer, then the integrated circuit is completed.
    Type: Grant
    Filed: November 18, 1993
    Date of Patent: November 21, 1995
    Assignee: Symetrix Corporation
    Inventors: Carlos A. Paz de Araujo, Michael C. Scott, Joseph D. Cuchiaro, Larry D. McMillan