Patents by Inventor Robert Chatham

Robert Chatham 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: 20070028838
    Abstract: The present invention relates generally to a deposition apparatus for semiconductor processing. More specifically, embodiments of the present invention relate to a gas manifold valve cluster and deposition apparatus. In some embodiments of the present invention a gas manifold valve cluster and system are provided that promotes reduced length and volumes of gas lines that will be exposed to atmosphere during cleaning which minimizes the time required to perform process chamber maintenance and therefore increase the productivity of the process chamber. In other embodiments a gas manifold valve cluster and ALD deposition apparatus are provided.
    Type: Application
    Filed: July 31, 2006
    Publication date: February 8, 2007
    Inventors: Craig Bercaw, Dan Cossentine, Jack Yao, Tommy Lo, Jay DeDontney, Lawrence Bartholomew, Robert Chatham
  • Publication number: 20070010072
    Abstract: A batch of wafer substrates is provided with each wafer substrate having a surface. Each surface is coated with a layer of material applied simultaneously to the surface of each of the batch of wafer substrates. The layer of material is applied to a thickness that varies less than four thickness percent across the surface and exclusive of an edge boundary and having a wafer-to-wafer thickness variation of less than three percent. The layer of material so applied is a silicon oxide, silicon nitride or silicon oxynitride with the layer of material being devoid of carbon and chlorine. Formation of silicon oxide or a silicon oxynitride requires the inclusion of a co-reactant. Silicon nitride is also formed with the inclusion of a nitrification co-reactant.
    Type: Application
    Filed: July 7, 2006
    Publication date: January 11, 2007
    Applicant: Aviza Technology, Inc.
    Inventors: Robert Bailey, Taiqing Qiu, Cole Porter, Olivier Laparra, Robert Chatham, Martin Mogaard, Helmuth Treichel
  • Publication number: 20060051506
    Abstract: A method of making high-k dielectrics is provided. The method comprises providing a substrate having a high-k dielectric layer deposited thereon in a process chamber and introducing a nitrogen containing gas into the process chamber to incorporate nitrogen into the high-k dielectric layer. In one embodiment, the nitrogen containing gas is a nitrogen plasma gas from a source disposed outside the process chamber. The nitrogen plasma gas is introduced into the process chamber at a flow rate from 0 to about 5000 sccm over a time period of about 20 to 1800 seconds. In another embodiment, the process chamber is maintained at a pressure of about 1 to 100 Torr, and at a wafer temperature in the range of about 200° C.-700° C. The high-k dielectric film pre-deposited on the substrate can be formed by atomic layer deposition, chemical vapor deposition (CVD), physical vapor deposition (PVD), jet vapor deposition (JVD), aerosol pyrolysis, and spin-coating.
    Type: Application
    Filed: December 1, 2004
    Publication date: March 9, 2006
    Inventors: Yoshihide Senzaki, Craig Bercaw, Robert Chatham, Randall Higuchi, Eugene Lopata
  • Patent number: 5868000
    Abstract: In an auger-type product chiller having an auger including a series of successive flights that form a generally helical structure that, when rotated, moves product through cold water for chilling the product, control elements extending from faces of the flights at a non-zero angle. The control structures prevent "clumping" and packing of poultry product, break up any "clumps" and packs of the product that may develop, and improve product uniformity. In this manner, the advantages of proper agitation, as well as rapid, predictable and even product cooling and moisture introduction, are achieved. Implementations of the control elements include sets of rods extending from the flights at 30.degree. angles from radial lines of affixation to the flights, flat plates extending from the flights at 30.degree. angles from radial lines of affixation to the flights, and sets of rods extending between successive flights near peripheries of the flights.
    Type: Grant
    Filed: September 8, 1997
    Date of Patent: February 9, 1999
    Assignee: Morris & Associates
    Inventors: William F. Morris, Jr., Robert Chatham, James Poindexter, Terry Wright