Patents by Inventor Tuhin Guha Neogi

Tuhin Guha Neogi 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: 10559503
    Abstract: At least one method, apparatus and system disclosed herein for forming a finFET device having a pass-through structure. A first gate structure and a second gate structure are formed on a semiconductor wafer. A first active area is formed on one end of the first and second gate structures. A second active area is formed on the other end of the first and second gate structures. A trench silicide (TS) structure self-aligned to the first and second gate structures is formed. The TS structure is configured to operatively couple the first active area to the second active area.
    Type: Grant
    Filed: October 9, 2017
    Date of Patent: February 11, 2020
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Guillaume Bouche, Tuhin Guha Neogi, Andy Chi-Hung Wei, Jia Zeng, Jongwook Kye, Jason Eugene Stephens, Irene Yuh-Ling Lin, Sudharshanan Raghunathan, Lei Yuan
  • Patent number: 10262941
    Abstract: Semiconductor devices and methods of fabricating the semiconductor devices with cross coupled contacts using patterning for cross couple pick-up are disclosed. One method includes, for instance: obtaining an intermediate semiconductor device; performing a first lithography to pattern a first shape; performing a second lithography to pattern a second shape overlapping a portion of the first shape; processing the first shape and the second shape to form an isolation region at the overlap; and forming four regions separated by the isolation region. An intermediate semiconductor device is also disclosed.
    Type: Grant
    Filed: April 22, 2016
    Date of Patent: April 16, 2019
    Assignee: GLOBALFOUNDRIES Inc.
    Inventors: Guillaume Bouche, Jason Eugene Stephens, Tuhin Guha Neogi, Kai Sun, Deniz Elizabeth Civay, David Charles Pritchard, Andy Wei
  • Patent number: 10236350
    Abstract: At least one method, apparatus and system disclosed herein for forming a finFET device. A gate structure comprising a gate spacer on a semiconductor wafer is formed. A self-aligned contact (SAC) cap is formed over the gate structure. A TS structure is formed. At least one M0 metal structure void is formed. At least one CB structure void adjacent the M0 metal structure void is formed. An etch process is performed the M0 and CB structures voids to the gate structure. At least one CA structure void adjacent the CB structure void is formed. The M0, CB, and CA structure voids are metallized.
    Type: Grant
    Filed: March 11, 2016
    Date of Patent: March 19, 2019
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Guillaume Bouche, Tuhin Guha Neogi, Sudharshanan Raghunathan, Andy Chi-Hung Wei, Jason Eugene Stephens, Vikrant Kumar Chauhan, David Michael Permana
  • Patent number: 10181522
    Abstract: Structures for a field-effect transistor and fabrication methods for forming a structure for a field-effect transistor. The structure may include a gate electrode, a source/drain region formed adjacent to a vertical sidewall of the gate electrode, and a conductive link that couples the vertical sidewall of the gate electrode with the source/drain region.
    Type: Grant
    Filed: February 21, 2017
    Date of Patent: January 15, 2019
    Assignee: GLOBALFOUNDRIES Inc.
    Inventors: Tuhin Guha Neogi, Scott D. Luning, David Pritchard, Kasun Anupama Punchihewa
  • Patent number: 10068806
    Abstract: At least one method, apparatus and system disclosed involves providing an integrated circuit having metal feature flyover over an middle-of-line (MOL) feature. A first location for a non-contact intersection region between a first middle of line (MOL) interconnect feature and a metal feature in a functional cell is determined. A dielectric feature is formed over the first MOL interconnect feature at the first location. The metal feature is formed over the dielectric layer, the dielectric layer providing a predetermined amount of voltage isolation between the first MOL interconnect feature and the metal feature.
    Type: Grant
    Filed: February 26, 2018
    Date of Patent: September 4, 2018
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: David C. Pritchard, Tuhin Guha Neogi, Scott Luning, David Doman
  • Publication number: 20180240885
    Abstract: Structures for a field-effect transistor and fabrication methods for forming a structure for a field-effect transistor. The structure may include a gate electrode, a source/drain region formed adjacent to a vertical sidewall of the gate electrode, and a conductive link that couples the vertical sidewall of the gate electrode with the source/drain region.
    Type: Application
    Filed: February 21, 2017
    Publication date: August 23, 2018
    Inventors: Tuhin Guha Neogi, Scott D. Luning, David Pritchard, Kasun Anupama Punchihewa
  • Patent number: 10056373
    Abstract: Embodiments of the present invention provide an improved semiconductor structure and methods of fabrication that provide transistor contacts that are self-aligned in two dimensions. Two different capping layers are used, each being comprised of a different material. The two capping layers are selectively etchable to each other. One capping layer is used for gate coverage while the other capping layer is used for source/drain coverage. Selective etch processes open the desired gates and source/drains, while block masks are used to cover elements that are not part of the connection scheme. A metallization line (layer) is deposited, making contact with the open elements to provide electrical connectivity between them.
    Type: Grant
    Filed: April 18, 2017
    Date of Patent: August 21, 2018
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Andy Chih-Hung Wei, Guillaume Bouche, Mark A. Zaleski, Tuhin Guha Neogi, Jason E. Stephens, Jongwook Kye, Jia Zeng
  • Publication number: 20180182674
    Abstract: At least one method, apparatus and system disclosed involves providing an integrated circuit having metal feature flyover over an middle-of-line (MOL) feature. A first location for a non-contact intersection region between a first middle of line (MOL) interconnect feature and a metal feature in a functional cell is determined. A dielectric feature is formed over the first MOL interconnect feature at the first location. The metal feature is formed over the dielectric layer, the dielectric layer providing a predetermined amount of voltage isolation between the first MOL interconnect feature and the metal feature.
    Type: Application
    Filed: February 26, 2018
    Publication date: June 28, 2018
    Applicant: GLOBALFOUNDRIES INC.
    Inventors: David C. Pritchard, Tuhin Guha Neogi, Scott Luning, David Doman
  • Publication number: 20180108571
    Abstract: At least one method, apparatus and system disclosed involves providing an integrated circuit having metal feature flyover over an middle-of-line (MOL) feature. A first location for a non-contact intersection region between a first middle of line (MOL) interconnect feature and a metal feature in a functional cell is determined. A dielectric feature is formed over the first MOL interconnect feature at the first location. The metal feature is formed over the dielectric layer, the dielectric layer providing a predetermined amount of voltage isolation between the first MOL interconnect feature and the metal feature.
    Type: Application
    Filed: October 14, 2016
    Publication date: April 19, 2018
    Applicant: GLOBALFOUNDRIES INC.
    Inventors: David C. Pritchard, Tuhin Guha Neogi, Scott Luning, David Doman
  • Patent number: 9947590
    Abstract: At least one method, apparatus and system disclosed involves providing an integrated circuit having metal feature flyover over an middle-of-line (MOL) feature. A first location for a non-contact intersection region between a first middle of line (MOL) interconnect feature and a metal feature in a functional cell is determined. A dielectric feature is formed over the first MOL interconnect feature at the first location. The metal feature is formed over the dielectric layer, the dielectric layer providing a predetermined amount of voltage isolation between the first MOL interconnect feature and the metal feature.
    Type: Grant
    Filed: October 14, 2016
    Date of Patent: April 17, 2018
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: David C. Pritchard, Tuhin Guha Neogi, Scott Luning, David Doman
  • Publication number: 20180033701
    Abstract: At least one method, apparatus and system disclosed herein for forming a finFET device having a pass-through structure. A first gate structure and a second gate structure are formed on a semiconductor wafer. A first active area is formed on one end of the first and second gate structures. A second active area is formed on the other end of the first and second gate structures. A trench silicide (TS) structure self-aligned to the first and second gate structures is formed. The TS structure is configured to operatively couple the first active area to the second active area.
    Type: Application
    Filed: October 9, 2017
    Publication date: February 1, 2018
    Applicant: GLOBALFOUNDRIES INC.
    Inventors: Guillaume Bouche, Tuhin Guha Neogi, Andy Chi-Hung Wei, Jia Zeng, Jongwook Kye, Jason Eugene Stephens, Irene Yuh-Ling Lin, Sudharshanan Raghunathan, Lei Yuan
  • Patent number: 9818651
    Abstract: At least one method, apparatus and system disclosed herein for forming a finFET device having a pass-through structure. A first gate structure and a second gate structure are formed on a semiconductor wafer. A first active area is formed on one end of the first and second gate structures. A second active area is formed on the other end of the first and second gate structures. A trench silicide (TS) structure self-aligned to the first and second gate structures is formed. The TS structure is configured to operatively couple the first active area to the second active area.
    Type: Grant
    Filed: March 11, 2016
    Date of Patent: November 14, 2017
    Assignee: GlobalFoundries Inc.
    Inventors: Guillaume Bouche, Tuhin Guha Neogi, Andy Chi-Hung Wei, Jia Zeng, Jongwook Kye, Jason Eugene Stephens, Irene Yuh-Ling Lin, Sudharshanan Raghunathan, Lei Yuan
  • Publication number: 20170309560
    Abstract: Semiconductor devices and methods of fabricating the semiconductor devices with cross coupled contacts using patterning for cross couple pick-up are disclosed. One method includes, for instance: obtaining an intermediate semiconductor device; performing a first lithography to pattern a first shape; performing a second lithography to pattern a second shape overlapping a portion of the first shape; processing the first shape and the second shape to form an isolation region at the overlap; and forming four regions separated by the isolation region. An intermediate semiconductor device is also disclosed.
    Type: Application
    Filed: April 22, 2016
    Publication date: October 26, 2017
    Applicant: GLOBALFOUNDRIES Inc.
    Inventors: Guillaume BOUCHE, Jason Eugene STEPHENS, Tuhin GUHA NEOGI, Kai SUN, Deniz Elizabeth CIVAY, David Charles PRITCHARD, Andy WEI
  • Publication number: 20170263506
    Abstract: At least one method, apparatus and system disclosed herein for forming a finFET device having a pass-through structure. A first gate structure and a second gate structure are formed on a semiconductor wafer. A first active area is formed on one end of the first and second gate structures. A second active area is formed on the other end of the first and second gate structures. A trench silicide (TS) structure self-aligned to the first and second gate structures is formed. The TS structure is configured to operatively couple the first active area to the second active area.
    Type: Application
    Filed: March 11, 2016
    Publication date: September 14, 2017
    Applicant: GLOBALFOUNDRIES INC.
    Inventors: Guillaume Bouche, Tuhin Guha Neogi, Andy Chi-Hung Wei, Jia Zeng, Jongwook Kye, Jason Eugene Stephens, Irene Yuh-Ling Lin, Sudharshanan Raghunathan, Lei Yuan
  • Publication number: 20170263715
    Abstract: At least one method, apparatus and system disclosed herein for forming a finFET device. A gate structure comprising a gate spacer on a semiconductor wafer is formed. A self-aligned contact (SAC) cap is formed over the gate structure. A TS structure is formed. At least one M0 metal structure void is formed. At least one CB structure void adjacent the M0 metal structure void is formed. An etch process is performed the M0 and CB structures voids to the gate structure. At least one CA structure void adjacent the CB structure void is formed. The M0, CB, and CA structure voids are metallized.
    Type: Application
    Filed: March 11, 2016
    Publication date: September 14, 2017
    Inventors: Guillaume Bouche, Tuhin Guha Neogi, Sudharshanan Raghunathan, Andy Chi-Hung Wei, Jason Eugene Stephens, Vikrant Kumar Chauhan, David Michael Permana
  • Publication number: 20170221886
    Abstract: Embodiments of the present invention provide an improved semiconductor structure and methods of fabrication that provide transistor contacts that are self-aligned in two dimensions. Two different capping layers are used, each being comprised of a different material. The two capping layers are selectively etchable to each other. One capping layer is used for gate coverage while the other capping layer is used for source/drain coverage. Selective etch processes open the desired gates and source/drains, while block masks are used to cover elements that are not part of the connection scheme. A metallization line (layer) is deposited, making contact with the open elements to provide electrical connectivity between them.
    Type: Application
    Filed: April 18, 2017
    Publication date: August 3, 2017
    Inventors: Andy Chih-Hung Wei, Guillaume Bouche, Mark A. Zaleski, Tuhin Guha Neogi, Jason E. Stephens, Jongwook Kye, Jia Zeng
  • Patent number: 9666488
    Abstract: A method of forming a silicide layer as a pass-through contact under a gate contact between p-epilayer and n-epilayer source/drains and the resulting device are provided. Embodiments include depositing a semiconductor layer over a substrate; forming a pFET gate on a p-side of the semiconductor layer and a nFET gate on a n-side of the semiconductor layer; forming a gate contact between the pFET gate and the nFET gate; forming raised source/drains on opposite sides of each of the pFET and nFET gates; and forming a metal silicide over a first raised source/drain on the p-side and over a second raised source/drain on the n-side, wherein the metal silicide extends from the first raised source/drain to the second raised source/drain and below the gate contact between the pFET and nFET gates.
    Type: Grant
    Filed: April 11, 2016
    Date of Patent: May 30, 2017
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Tuhin Guha Neogi, David Pritchard, Scott Luning, Guillaume Bouche, David Doman
  • Patent number: 9660040
    Abstract: Embodiments of the present invention provide an improved semiconductor structure and methods of fabrication that provide transistor contacts that are self-aligned in two dimensions. Two different capping layers are used, each being comprised of a different material. The two capping layers are selectively etchable to each other. One capping layer is used for gate coverage while the other capping layer is used for source/drain coverage. Selective etch processes open the desired gates and source/drains, while block masks are used to cover elements that are not part of the connection scheme. A metallization line (layer) is deposited, making contact with the open elements to provide electrical connectivity between them.
    Type: Grant
    Filed: October 29, 2015
    Date of Patent: May 23, 2017
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Andy Chih-Hung Wei, Guillaume Bouche, Mark A. Zaleski, Tuhin Guha Neogi, Jason E. Stephens, Jongwook Kye, Jia Zeng
  • Patent number: 9502528
    Abstract: An improved semiconductor structure and methods of fabrication that provide improved transistor contacts in a semiconductor structure are provided. A first block mask is formed over a portion of the semiconductor structure. This first block mask covers at least a portion of at least one source/drain (s/d) contact location. An s/d capping layer is formed over the s/d contact locations that are not covered by the first block mask. This s/d capping layer is comprised of a first capping substance. Then, a second block mask is formed over the semiconductor structure. This second block mask exposes at least one gate location. A gate capping layer, which comprises a second capping substance, is removed from the exposed gate location(s). Then a metal contact layer is deposited, which forms a contact to both the s/d contact location(s) and the gate contact location(s).
    Type: Grant
    Filed: August 26, 2014
    Date of Patent: November 22, 2016
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Guillaume Bouche, Jason E. Stephens, Tuhin Guha Neogi, Mark A. Zaleski, Andy Chih-Hung Wei
  • Patent number: 9472455
    Abstract: A method is provided for fabricating cross-coupled line segments on a wafer for use, for instance, in fabricating cross-coupled gates of two or more transistors. The fabricating includes: patterning a first line segment with a first side projection using a first mask; and patterning a second line segment with a second side projection using a second mask. The second line segment is offset from the first line segment, and the patterned second side projection overlies the patterned first side projection, and facilitates defining a cross-stitch segment connecting the first and second line segments. The method further includes selectively cutting the first and second line segments in defining the cross-coupled line segments from the first and second line segments and the cross-stitch segment.
    Type: Grant
    Filed: April 7, 2014
    Date of Patent: October 18, 2016
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Jason E. Stephens, Lei Yuan, Lixia Lei, David Pritchard, Tuhin Guha Neogi