Patents by Inventor Gregory Allen Northrop

Gregory Allen Northrop 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: 9406888
    Abstract: Embodiments of the present invention provide a method of forming carbon nanotube based semiconductor devices. The method includes creating a guiding structure in a substrate for forming a device; dispersing a plurality of carbon nanotubes inside the guiding structure, the plurality of carbon nanotubes having an orientation determined by the guiding structure; fixating the plurality of carbon nanotubes to the guiding structure; and forming one or more contacts to the device. Structure of the formed carbon nanotube device is also provided.
    Type: Grant
    Filed: August 7, 2013
    Date of Patent: August 2, 2016
    Assignee: GlobalFoundries, Inc.
    Inventors: Lawrence A. Clevenger, Chandrasekhar Narayan, Gregory Allen Northrop, Carl John Radens, Brian Christopher Sapp
  • Patent number: 9059308
    Abstract: Embodiments of the present invention include a semiconductor structure including two transistor structures separated by a dummy gate of a different material and methods for forming said structure. Embodiments including forming sacrificial gates on a semiconductor substrate, forming spacers on the sacrificial gates, forming source/drain regions adjacent to two sacrificial gates separated by a third sacrificial gate, and replacing the third sacrificial gate with an insulating material. The insulating material replacing the third sacrificial gate may serve as a dummy gate to electrically isolate nearby source/drain regions. Embodiments further include forming sacrificial gates on a semiconductor substrate, forming spacers on the sacrificial gates, forming source/drain regions adjacent to two sacrificial gates separated by a third sacrificial gate, and replacing the two sacrificial gates with metal gates while leaving the third sacrificial gate in place to serve as a dummy gate.
    Type: Grant
    Filed: August 2, 2012
    Date of Patent: June 16, 2015
    Assignee: International Business Machines Corporation
    Inventors: Emre Alptekin, Gregory Allen Northrop, Viraj Yashawant Sardesai, Cung Do Tran
  • Publication number: 20150041763
    Abstract: Embodiments of the present invention provide a method of forming carbon nanotube based semiconductor devices. The method includes creating a guiding structure in a substrate for forming a device; dispersing a plurality of carbon nanotubes inside the guiding structure, the plurality of carbon nanotubes having an orientation determined by the guiding structure; fixating the plurality of carbon nanotubes to the guiding structure; and forming one or more contacts to the device. Structure of the formed carbon nanotube device is also provided.
    Type: Application
    Filed: August 7, 2013
    Publication date: February 12, 2015
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Lawrence A. Clevenger, Chandrasekhar Narayan, Gregory Allen Northrop, Carl John Radens, Brian Christopher Sapp
  • Publication number: 20140035045
    Abstract: Embodiments of the present invention include a semiconductor structure including two transistor structures separated by a dummy gate of a different material and methods for forming said structure. Embodiments including forming sacrificial gates on a semiconductor substrate, forming spacers on the sacrificial gates, forming source/drain regions adjacent to two sacrificial gates separated by a third sacrificial gate, and replacing the third sacrificial gate with an insulating material. The insulating material replacing the third sacrificial gate may serve as a dummy gate to electrically isolate nearby source/drain regions. Embodiments further include forming sacrificial gates on a semiconductor substrate, forming spacers on the sacrificial gates, forming source/drain regions adjacent to two sacrificial gates separated by a third sacrificial gate, and replacing the two sacrificial gates with metal gates while leaving the third sacrificial gate in place to serve as a dummy gate.
    Type: Application
    Filed: August 2, 2012
    Publication date: February 6, 2014
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Emre Alptekin, Gregory Allen Northrop, Viraj Yashawant Sardesai, Cung Do Tran
  • Patent number: 7260810
    Abstract: A method for analyzing circuit designs includes discretizing a design representation into pixel elements representative of a structure in the design and determining at least one property for each pixel element representing a portion of the design. Then, a response of the design is determined due to local properties across the design.
    Type: Grant
    Filed: October 16, 2003
    Date of Patent: August 21, 2007
    Assignee: International Business Machines Corporation
    Inventors: Ronald G. Filippi, Jr., Giovanni Fiorenza, Xiao Hu Liu, Conal Eugene Murray, Gregory Allen Northrop, Thomas M. Shaw, Richard Andreā€² Wachnik, Mary Yvonne Lanzerotti Wisniewski