Patents by Inventor Steven P. Reeves

Steven P. Reeves 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).

  • Patent number: 7236848
    Abstract: A method, apparatus, and a system for providing data representation associated with non-sampled workpieces. Measured metrology data relating to a first workpiece is received. Metrology data corresponding to a second workpiece is approximated based upon the metrology data relating to the first workpiece to provide a projected metrology data relating to the second workpiece.
    Type: Grant
    Filed: September 12, 2005
    Date of Patent: June 26, 2007
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Steven P. Reeves, Michael G. McIntyre
  • Patent number: 6933158
    Abstract: The present invention is directed to several inventive methods of monitoring anneal processes performed on implant regions, and a system for accomplishing same. In one aspect, the method comprises forming a first plurality of implant regions in a semiconducting substrate, performing at least one anneal process on implant regions, performing a scatterometric measurement of at least one of the implant regions after at least a portion of the anneal process is performed to determine a profile of the implant region and determining an effectiveness of the anneal process based upon the determined profile of the implant region. In other embodiments, one or more parameters of the anneal process may be varied on subsequently processed substrates based upon the determined efficiency of the anneal process.
    Type: Grant
    Filed: October 31, 2002
    Date of Patent: August 23, 2005
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Kevin R. Lensing, James Broc Stirton, Homi E. Nariman, Steven P. Reeves
  • Patent number: 6927080
    Abstract: The present invention is generally directed to various structures for analyzing electromigration, and methods of using same. In one illustrative embodiment, the method includes forming a grating structure above a semiconducting substrate, the grating structure being comprised of a plurality of conductive features, forcing an electrical current through at least one of the conductive features until a resistance of the conductive feature increases by a preselected amount, and performing at least one scatterometric measurement of the conductive feature to determine a critical dimension of the conductive feature.
    Type: Grant
    Filed: October 28, 2002
    Date of Patent: August 9, 2005
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Homi E. Nariman, James Broc Stirton, Kevin R. Lensing, Steven P. Reeves
  • Patent number: 6881594
    Abstract: The present invention is generally directed to various methods of using scatterometry for analysis of electromigration. In one illustrative embodiment, the method comprises forming a grating structure above a semiconducting substrate, the grating structure being comprised of a plurality of conductive structures, forcing an electrical current through at least one of the conductive structures and performing scatterometric measurements of at least one conductive structure to detect a change in shape of at least a portion of the conductive structure. In further embodiments, the method comprises determining a susceptibility of at least one conductive structure to electromigration based upon the detected change in shape of the conductive structure.
    Type: Grant
    Filed: October 28, 2002
    Date of Patent: April 19, 2005
    Assignee: Advanced Micro Devices, Inc.
    Inventors: James Broc Stirton, Steven P. Reeves, Homi E. Nariman, Kevin R. Lensing
  • Patent number: 6785009
    Abstract: A method of using high yielding spectra scatterometry measurements to control semiconductor manufacturing processes and systems for accomplishing same is disclosed. In one embodiment, the method comprises providing a library comprised of at least one target optical characteristic trace of a grating structure comprised of a plurality of gate stacks, the target trace corresponding to a semiconductor device having at least one desired electrical performance characteristic, providing a substrate having at least one grating structure formed thereabove, the formed grating structure comprised of a plurality of gate stacks, illuminating at least one grating structure formed above said substrate, measuring light reflected off of the grating structure formed above the substrate to generate an optical characteristic trace for the formed grating structure, and comparing the generated optical characteristic trace to the target trace.
    Type: Grant
    Filed: February 28, 2002
    Date of Patent: August 31, 2004
    Assignee: Advanced Micro Devices, Inc.
    Inventors: James Broc Stirton, Kevin R. Lensing, Hormuzdiar E. Nariman, Steven P. Reeves
  • Patent number: 6660543
    Abstract: The present invention is directed to several inventive methods for characterizing implant profiles. In one embodiment, the method comprises providing a semiconducting substrate, forming a first plurality of implant regions in the substrate, and illuminating at least one of the first plurality of implant regions with a light source in a scatterometry tool, wherein the scatterometry tool generates a profile trace corresponding to an implant profile of the illuminated implant region. The method further comprises creating at least one profile trace corresponding,to an anticipated profile of the implant region, wherein, in creating the profile trace, values of at least one of an index of refraction (n) and a dielectric constant (k) are varied, and comparing the generated profile trace to at least one created profile trace.
    Type: Grant
    Filed: October 31, 2002
    Date of Patent: December 9, 2003
    Assignee: Advanced Micro Devices, Inc.
    Inventors: James Broc Stirton, Kevin R. Lensing, Homi E. Nariman, Steven P. Reeves