Patents by Inventor Shekar Krishnaswamy

Shekar Krishnaswamy 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).

  • METHOD AND APPARATUS FOR AUTOMATED FAB CONTROL
    Publication number: 20110218660
    Abstract: A method, apparatus, and a system for prioritizing processing of a workpiece is provided. At least one workpiece is processed. A tag associated with the workpiece is provided. The tag includes process priority data for determining an order relating to processing the workpiece.
    Type: Application
    Filed: May 17, 2011
    Publication date: September 8, 2011
    Inventors: Chandra Shekar Krishnaswamy, Michael Alan Retersdorf
  • Method and apparatus for automated fab control
    Patent number: 7966089
    Abstract: A method, apparatus, and a system for prioritizing processing of a workpiece is provided. At least one workpiece is processed. A tag associated with the workpiece is provided. The tag includes process priority data for determining an order relating to processing the workpiece.
    Type: Grant
    Filed: July 5, 2005
    Date of Patent: June 21, 2011
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Chandra Shekar Krishnaswamy, Michael Alan Retersdorf
  • Method and apparatus for adjusting processing speeds based on work-in-process levels
    Patent number: 7536233
    Abstract: The present invention provides a method and apparatus for adjusting tool processing speeds based on work-in-process levels. The method includes determining at least one work-in-process level associated with a first processing tool and modifying a processing speed associated with the first processing tool based on said at least one work-in-process level.
    Type: Grant
    Filed: January 30, 2006
    Date of Patent: May 19, 2009
    Assignee: Advanced Micro Devices, Inc.
    Inventor: Chandra Shekar Krishnaswamy
  • Processing system having a scheduling system based on a composite ratio of process scheduling factors
    Patent number: 6243612
    Abstract: A processing system includes a scheduling system to scheduling processing of lots which are distributed among various processing system stations. Process scheduling is determined in accordance with lot specific composite ratios which are a function of process scheduling factors. Such process scheduling factors include, for example, a processing system efficiency, customer factors, and market factors. Processing system efficiency is influenced by a hunger ratio which is a ratio of the time when a particular lot is needed by a next constraint resource in the lot's process flow and the planned cycle time of a select lot to such next constraint resource. Customer factors include a critical ratio of the lateness of a lot relative to the lot's due date, and market factors reflect the relevant market priority of the lot. The process scheduling factors may be weighted to control their influence on the composite ratio.
    Type: Grant
    Filed: November 9, 1998
    Date of Patent: June 5, 2001
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Clay L. Rippenhagen, Shekar Krishnaswamy, Anthony R. Baker, Nipa Patel, Victor Palmeri, Jeriad Zoghby, Liming Shao