Patents by Inventor Indradeep Sen

Indradeep Sen 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: 9269710
    Abstract: Apparatus for semiconductor device structures and related fabrication methods are provided. A method for fabricating a semiconductor device structure on an isolated region of semiconductor material comprises forming a plurality of gate structures overlying the isolated region of semiconductor material and masking edge portions of the isolated region of semiconductor material. While the edge portions are masked, the fabrication method continues by forming recesses between gate structures of the plurality of gate structures and forming stressor regions in the recesses. The method continues by unmasking the edge portions and implanting ions of a conductivity-determining impurity type into the stressor regions and the edge portions.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: February 23, 2016
    Assignee: GLOBALFOUNDRIES, INC.
    Inventors: Akif Sultan, Indradeep Sen
  • Patent number: 8779529
    Abstract: A semiconductor device is formed with low resistivity self aligned silicide contacts with high-K/metal gates. Embodiments include postponing silicidation of a metal layer on source/drain regions in a silicon substrate until deposition of a high-K dielectric, thereby preserving the physical and morphological properties of the silicide film and improving device performance. An embodiment includes forming a replaceable gate electrode on a silicon-containing substrate, forming source/drain regions, forming a metal layer on the source/drain regions, forming an ILD over the metal layer on the substrate, removing the replaceable gate electrode, thereby forming a cavity, depositing a high-K dielectric layer in the cavity at a temperature sufficient to initiate a silicidation reaction between the metal layer and underlying silicon, and forming a metal gate electrode on the high-K dielectric layer.
    Type: Grant
    Filed: December 3, 2012
    Date of Patent: July 15, 2014
    Assignee: GLOBALFOUNDRIES, Inc.
    Inventors: Indradeep Sen, Thorsten Kammler, Andreas Knorr, Akif Sultan
  • Patent number: 8426278
    Abstract: Apparatus for semiconductor device structures and related fabrication methods are provided. A method for fabricating a semiconductor device structure on an isolated region of semiconductor material comprises forming a plurality of gate structures overlying the isolated region of semiconductor material and masking edge portions of the isolated region of semiconductor material. While the edge portions are masked, the fabrication method continues by forming recesses between gate structures of the plurality of gate structures and forming stressor regions in the recesses. The method continues by unmasking the edge portions and implanting ions of a conductivity-determining impurity type into the stressor regions and the edge portions.
    Type: Grant
    Filed: June 9, 2010
    Date of Patent: April 23, 2013
    Assignee: GLOBALFOUNDRIES, Inc.
    Inventors: Akif Sultan, Indradeep Sen
  • Publication number: 20130092957
    Abstract: A semiconductor device is formed with low resistivity self aligned silicide contacts with high-K/metal gates. Embodiments include postponing silicidation of a metal layer on source/drain regions in a silicon substrate until deposition of a high-K dielectric, thereby preserving the physical and morphological properties of the silicide film and improving device performance. An embodiment includes forming a replaceable gate electrode on a silicon-containing substrate, forming source/drain regions, forming a metal layer on the source/drain regions, forming an ILD over the metal layer on the substrate, removing the replaceable gate electrode, thereby forming a cavity, depositing a high-K dielectric layer in the cavity at a temperature sufficient to initiate a silicidation reaction between the metal layer and underlying silicon, and forming a metal gate electrode on the high-K dielectric layer.
    Type: Application
    Filed: December 3, 2012
    Publication date: April 18, 2013
    Applicant: GLOBALFOUNDRIES Inc.
    Inventors: Indradeep SEN, Thorsten KAMMLER, Andreas KNORR, Akif SULTAN
  • Patent number: 8361870
    Abstract: A semiconductor device is formed with low resistivity self aligned silicide contacts with high-K/metal gates. Embodiments include postponing silicidation of a metal layer on source/drain regions in a silicon substrate until deposition of a high-K dielectric, thereby preserving the physical and morphological properties of the silicide film and improving device performance. An embodiment includes forming a replaceable gate electrode on a silicon-containing substrate, forming source/drain regions, forming a metal layer on the source/drain regions, forming an ILD over the metal layer on the substrate, removing the replaceable gate electrode, thereby forming a cavity, depositing a high-K dielectric layer in the cavity at a temperature sufficient to initiate a silicidation reaction between the metal layer and underlying silicon, and forming a metal gate electrode on the high-K dielectric layer.
    Type: Grant
    Filed: July 26, 2010
    Date of Patent: January 29, 2013
    Assignee: Globalfoundries Inc.
    Inventors: Indradeep Sen, Thorsten Kammler, Andreas Knorr, Akif Sultan
  • Publication number: 20120018816
    Abstract: A semiconductor device is formed with low resistivity self aligned silicide contacts with high-K/metal gates. Embodiments include postponing silicidation of a metal layer on source/drain regions in a silicon substrate until deposition of a high-K dielectric, thereby preserving the physical and morphological properties of the silicide film and improving device performance. An embodiment includes forming a replaceable gate electrode on a silicon-containing substrate, forming source/drain regions, forming a metal layer on the source/drain regions, forming an ILD over the metal layer on the substrate, removing the replaceable gate electrode, thereby forming a cavity, depositing a high-K dielectric layer in the cavity at a temperature sufficient to initiate a silicidation reaction between the metal layer and underlying silicon, and forming a metal gate electrode on the high-K dielectric layer.
    Type: Application
    Filed: July 26, 2010
    Publication date: January 26, 2012
    Applicant: GLOBALFOUNDRIES Inc.
    Inventors: Indradeep Sen, Thorsten Kammler, Andreas Knorr, Akif Sultan
  • Publication number: 20110303980
    Abstract: Apparatus for semiconductor device structures and related fabrication methods are provided. A method for fabricating a semiconductor device structure on an isolated region of semiconductor material comprises forming a plurality of gate structures overlying the isolated region of semiconductor material and masking edge portions of the isolated region of semiconductor material. While the edge portions are masked, the fabrication method continues by forming recesses between gate structures of the plurality of gate structures and forming stressor regions in the recesses. The method continues by unmasking the edge portions and implanting ions of a conductivity-determining impurity type into the stressor regions and the edge portions.
    Type: Application
    Filed: June 9, 2010
    Publication date: December 15, 2011
    Applicant: GLOBALFOUNDRIES INC.
    Inventors: Akif SULTAN, Indradeep SEN