Patents by Inventor Casey Scott

Casey Scott 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: 9450073
    Abstract: By reconfiguring material in a recess formed in drain and source regions of SOI transistors, the depth of the recess may be increased down to the buried insulating layer prior to forming respective metal silicide regions, thereby reducing series resistance and enhancing the stress transfer when the corresponding transistor element is covered by a highly stressed dielectric material. The material redistribution may be accomplished on the basis of a high temperature hydrogen bake.
    Type: Grant
    Filed: November 8, 2007
    Date of Patent: September 20, 2016
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Andy Wei, Thorsten Kammler, Roman Boschke, Casey Scott
  • Patent number: 8652913
    Abstract: By providing a protection layer on a silicon/germanium material of high germanium concentration, a corresponding loss of strained semiconductor material may be significantly reduced or even completely avoided. The protection layer may be formed prior to critical cleaning processes and may be maintained until the formation of metal silicide regions. Hence, high performance gain of P-type transistors may be accomplished without requiring massive overfill during the selective epitaxial growth process.
    Type: Grant
    Filed: July 17, 2007
    Date of Patent: February 18, 2014
    Assignee: GLOBALFOUNDRIES Inc.
    Inventors: Andreas Gehring, Maciej Wiatr, Andy Wei, Thorsten Kammler, Roman Boschke, Casey Scott
  • Patent number: 8530894
    Abstract: By providing a test structure for evaluating the patterning process and/or the epitaxial growth process for forming embedded semiconductor alloys in sophisticated semiconductor devices, enhanced statistical relevance in combination with reduced test time may be accomplished.
    Type: Grant
    Filed: May 18, 2012
    Date of Patent: September 10, 2013
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Anthony Mowry, Casey Scott, Vassilios Papageorgiou, Andy Wei, Markus Lenski, Andreas Gehring
  • Patent number: 8373244
    Abstract: By forming thermocouples in a contact structure of a semiconductor device, respective extension lines of the thermocouples may be routed to any desired location within the die, without consuming valuable semiconductor area in the device layer. Thus, an appropriate network of measurement points of interest may be provided, while at the same time allowing the application of well-established process techniques and materials. Hence, temperature-dependent signals may be obtained from hot spots substantially without being affected by design constraints in the device layer.
    Type: Grant
    Filed: July 8, 2008
    Date of Patent: February 12, 2013
    Assignee: GLOBALFOUNDRIES Inc.
    Inventors: Anthony Mowry, Casey Scott, Roman Boschke
  • Patent number: 8334569
    Abstract: In sophisticated semiconductor devices, a strain-inducing semiconductor alloy may be positioned close to the channel region by forming cavities on the basis of a wet chemical etch process, which may have an anisotropic etch behavior with respect to different crystallographic orientations. In one embodiment, TMAH may be used which exhibits, in addition to the anisotropic etch behavior, a high etch selectivity with respect to silicon dioxide, thereby enabling extremely thin etch stop layers which additionally provide the possibility of further reducing the offset from the channel region while not unduly contributing to overall process variability.
    Type: Grant
    Filed: April 24, 2012
    Date of Patent: December 18, 2012
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Robert Mulfinger, Andy Wei, Jan Hoentschel, Casey Scott
  • Publication number: 20120223309
    Abstract: By providing a test structure for evaluating the patterning process and/or the epitaxial growth process for forming embedded semiconductor alloys in sophisticated semiconductor devices, enhanced statistical relevance in combination with reduced test time may be accomplished.
    Type: Application
    Filed: May 18, 2012
    Publication date: September 6, 2012
    Inventors: Anthony Mowry, Casey Scott, Vassilios Papageorgiou, Andy Wei, Markus Lenski, Andreas Gehring
  • Publication number: 20120211810
    Abstract: In sophisticated semiconductor devices, a strain-inducing semiconductor alloy may be positioned close to the channel region by forming cavities on the basis of a wet chemical etch process, which may have an anisotropic etch behavior with respect to different crystallographic orientations. In one embodiment, TMAH may be used which exhibits, in addition to the anisotropic etch behavior, a high etch selectivity with respect to silicon dioxide, thereby enabling extremely thin etch stop layers which additionally provide the possibility of further reducing the offset from the channel region while not unduly contributing to overall process variability.
    Type: Application
    Filed: April 24, 2012
    Publication date: August 23, 2012
    Inventors: Robert Mulfinger, Andy Wei, Jan Hoentschel, Casey Scott
  • Patent number: 8227266
    Abstract: By providing a test structure for evaluating the patterning process and/or the epitaxial growth process for forming embedded semiconductor alloys in sophisticated semiconductor devices, enhanced statistical relevance in combination with reduced test time may be accomplished.
    Type: Grant
    Filed: March 3, 2010
    Date of Patent: July 24, 2012
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Anthony Mowry, Casey Scott, Vassilios Papageorgiou, Andy Wei, Markus Lenski, Andreas Gehring
  • Patent number: 8212184
    Abstract: Operation of complex integrated circuits at low temperatures may be enhanced by providing active heating elements within the integrated circuit so as to raise the temperature of at least critical circuit portions at respective operational phases, such as upon power-up. Consequently, enhanced cold temperature performance may be obtained on the basis of existing process elements in order to provide design stability without requiring extensive circuit simulation or redesign of well-established circuit architectures.
    Type: Grant
    Filed: February 23, 2009
    Date of Patent: July 3, 2012
    Assignee: GlobalFoundries, Inc.
    Inventors: Anthony Mowry, Casey Scott, Maciej Wiatr, Ralf Richter
  • Patent number: 8183100
    Abstract: In sophisticated semiconductor devices, a strain-inducing semiconductor alloy may be positioned close to the channel region by forming cavities on the basis of a wet chemical etch process, which may have an anisotropic etch behavior with respect to different crystallographic orientations. In one embodiment, TMAH may be used which exhibits, in addition to the anisotropic etch behavior, a high etch selectivity with respect to silicon dioxide, thereby enabling extremely thin etch stop layers which additionally provide the possibility of further reducing the offset from the channel region while not unduly contributing to overall process variability.
    Type: Grant
    Filed: September 18, 2009
    Date of Patent: May 22, 2012
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Robert Mulfinger, Andy Wei, Jan Hoentschel, Casey Scott
  • Patent number: 8138050
    Abstract: Transistor characteristics may be adjusted on the basis of asymmetrically formed cavities in the drain and source areas so as to maintain a strain-inducing mechanism while at the same time providing the possibility of obtaining asymmetric configuration of the drain and source areas while avoiding highly complex implantation processes. For this purpose, the removal rate during a corresponding cavity etch process may be asymmetrically modified on the basis of a tilted ion implantation process.
    Type: Grant
    Filed: September 9, 2009
    Date of Patent: March 20, 2012
    Assignee: GLOBALFOUNDRIES Inc.
    Inventors: Vassilios Papageorgiou, Jan Hoentschel, Robert Mulfinger, Casey Scott
  • Patent number: 8093634
    Abstract: By repeatedly applying a process sequence comprising an etch process and a selective epitaxial growth process during the formation of drain and source areas in a transistor device, highly complex dopant profiles may be generated on the basis of in situ doping. Further-more, a strain material may be provided while stress relaxation mechanisms may be reduced due to the absence of any implantation processes.
    Type: Grant
    Filed: February 27, 2009
    Date of Patent: January 10, 2012
    Assignee: Globalfoundries Inc.
    Inventors: Anthony Mowry, Andy Wei, Andreas Gehring, Casey Scott
  • Patent number: 7897451
    Abstract: By selectively applying a stress memorization technique to N-channel transistors, a significant improvement of transistor performance may be achieved. High selectivity in applying the stress memorization approach may be accomplished by substantially maintaining the crystalline state of the P-channel transistors while annealing the N-channel transistors in the presence of an appropriate material layer which may not to be patterned prior to the anneal process, thereby avoiding additional lithography and masking steps.
    Type: Grant
    Filed: May 20, 2008
    Date of Patent: March 1, 2011
    Assignee: GLOBALFOUNDRIES Inc.
    Inventors: Maciej Wiatr, Casey Scott, Andreas Gehring, Peter Javorka, Andy Wei
  • Patent number: 7811876
    Abstract: By appropriately locally controlling the conditions during a re-growth process in a memory region and a speed-critical device region, the creation of dislocation defects may be reduced in the memory region, thereby enhancing overall stability of respective memory cells. On the other hand, enhanced strain levels may be obtained in the speed-critical device region by performing an efficient amorphization process and re-crystallizing amorphized portions, for instance, in the presence of a rigid material to provide a desired high strain level.
    Type: Grant
    Filed: August 8, 2008
    Date of Patent: October 12, 2010
    Assignee: GlobalFoundries Inc.
    Inventors: Casey Scott, Anthony Mowry, Frank Wirbeleit
  • Publication number: 20100155727
    Abstract: By providing a test structure for evaluating the patterning process and/or the epitaxial growth process for forming embedded semiconductor alloys in sophisticated semiconductor devices, enhanced statistical relevance in combination with reduced test time may be accomplished.
    Type: Application
    Filed: March 3, 2010
    Publication date: June 24, 2010
    Inventors: ANTHONY MOWRY, Casey Scott, Vassilios Papageorgiou, Andy Wei, Markus Lenski, Andreas Gehring
  • Patent number: 7713763
    Abstract: By providing a test structure for evaluating the patterning process and/or the epitaxial growth process for forming embedded semiconductor alloys in sophisticated semiconductor devices, enhanced statistical relevance in combination with reduced test time may be accomplished.
    Type: Grant
    Filed: June 3, 2008
    Date of Patent: May 11, 2010
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Anthony Mowry, Casey Scott, Vassilios Papageorgiou, Andy Wei, Markus Lenski, Andreas Gehring
  • Publication number: 20100090321
    Abstract: By providing a high-k dielectric etch stop material as an etch stop layer for patterning an interlayer dielectric material, enhanced performance and higher flexibility may be achieved since, for instance, an increased amount of highly stressed dielectric material may be positioned more closely to the respective transistors due to the reduced thickness of the high-k dielectric etch stop material.
    Type: Application
    Filed: October 10, 2008
    Publication date: April 15, 2010
    Inventors: Robert Mulfinger, Andy Wei, Roman Boschke, Casey Scott
  • Publication number: 20100078691
    Abstract: In sophisticated semiconductor devices, a strain-inducing semiconductor alloy may be positioned close to the channel region by forming cavities on the basis of a wet chemical etch process, which may have an anisotropic etch behavior with respect to different crystallographic orientations. In one embodiment, TMAH may be used which exhibits, in addition to the anisotropic etch behavior, a high etch selectivity with respect to silicon dioxide, thereby enabling extremely thin etch stop layers which additionally provide the possibility of further reducing the offset from the channel region while not unduly contributing to overall process variability.
    Type: Application
    Filed: September 18, 2009
    Publication date: April 1, 2010
    Inventors: Robert Mulfinger, Andy Wei, Jan Hoentschel, Casey Scott
  • Publication number: 20100081244
    Abstract: Transistor characteristics may be adjusted on the basis of asymmetrically formed cavities in the drain and source areas so as to maintain a strain-inducing mechanism while at the same time providing the possibility of obtaining asymmetric configuration of the drain and source areas while avoiding highly complex implantation processes. For this purpose, the removal rate during a corresponding cavity etch process may be asymmetrically modified on the basis of a tilted ion implantation process.
    Type: Application
    Filed: September 9, 2009
    Publication date: April 1, 2010
    Inventors: Vassilios Papageorgiou, Jan Hoentschel, Robert Mulfinger, Casey Scott
  • Publication number: 20090294860
    Abstract: By repeatedly applying a process sequence comprising an etch process and a selective epitaxial growth process during the formation of drain and source areas in a transistor device, highly complex dopant profiles may be generated on the basis of in situ doping. Further-more, a strain material may be provided while stress relaxation mechanisms may be reduced due to the absence of any implantation processes.
    Type: Application
    Filed: February 27, 2009
    Publication date: December 3, 2009
    Inventors: Anthony Mowry, Andy Wei, Andreas Gehring, Casey Scott