Patents by Inventor Hugen Yan

Hugen Yan 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: 10613027
    Abstract: Techniques for forming nanoribbon or bulk graphene-based SPR sensors are provided. In one aspect, a method of forming a graphene-based SPR sensor is provided which includes the steps of: depositing graphene onto a substrate, wherein the substrate comprises a dielectric layer on a conductive layer, and wherein the graphene is deposited onto the dielectric layer; and patterning the graphene into multiple, evenly spaced graphene strips, wherein each of the graphene strips has a width of from about 50 nanometers to about 5 micrometers, and ranges therebetween, and wherein the graphene strips are separated from one another by a distance of from about 5 nanometers to about 50 micrometers, and ranges therebetween. Alternatively, bulk graphene may be employed and the dielectric layer is used to form periodic regions of differing permittivity. A testing apparatus and method of analyzing a sample using the present SPR sensors are also provided.
    Type: Grant
    Filed: August 1, 2016
    Date of Patent: April 7, 2020
    Assignee: International Business Machines Corporation
    Inventors: Phaedon Avouris, Damon B. Farmer, Yilei Li, Hugen Yan
  • Patent number: 10564097
    Abstract: Techniques for forming nanoribbon or bulk graphene-based SPR sensors are provided. In one aspect, a method of forming a graphene-based SPR sensor is provided which includes the steps of: depositing graphene onto a substrate, wherein the substrate comprises a dielectric layer on a conductive layer, and wherein the graphene is deposited onto the dielectric layer; and patterning the graphene into multiple, evenly spaced graphene strips, wherein each of the graphene strips has a width of from about 50 nanometers to about 5 micrometers, and ranges therebetween, and wherein the graphene strips are separated from one another by a distance of from about 5 nanometers to about 50 micrometers, and ranges therebetween. Alternatively, bulk graphene may be employed and the dielectric layer is used to form periodic regions of differing permittivity. A testing apparatus and method of analyzing a sample using the present SPR sensors are also provided.
    Type: Grant
    Filed: August 1, 2016
    Date of Patent: February 18, 2020
    Assignee: International Business Machines Corporation
    Inventors: Phaedon Avouris, Damon B. Farmer, Yilei Li, Hugen Yan
  • Patent number: 9594018
    Abstract: Techniques for forming nanoribbon or bulk graphene-based SPR sensors are provided. In one aspect, a method of forming a graphene-based SPR sensor is provided which includes the steps of: depositing graphene onto a substrate, wherein the substrate comprises a dielectric layer on a conductive layer, and wherein the graphene is deposited onto the dielectric layer; and patterning the graphene into multiple, evenly spaced graphene strips, wherein each of the graphene strips has a width of from about 50 nanometers to about 5 micrometers, and ranges therebetween, and wherein the graphene strips are separated from one another by a distance of from about 5 nanometers to about 50 micrometers, and ranges therebetween. Alternatively, bulk graphene may be employed and the dielectric layer is used to form periodic regions of differing permittivity. A testing apparatus and method of analyzing a sample using the present SPR sensors are also provided.
    Type: Grant
    Filed: August 1, 2016
    Date of Patent: March 14, 2017
    Assignee: International Business Machines Corporation
    Inventors: Phaedon Avouris, Damon B. Farmer, Yilei Li, Hugen Yan
  • Publication number: 20160341662
    Abstract: Techniques for forming nanoribbon or bulk graphene-based SPR sensors are provided. In one aspect, a method of forming a graphene-based SPR sensor is provided which includes the steps of: depositing graphene onto a substrate, wherein the substrate comprises a dielectric layer on a conductive layer, and wherein the graphene is deposited onto the dielectric layer; and patterning the graphene into multiple, evenly spaced graphene strips, wherein each of the graphene strips has a width of from about 50 nanometers to about 5 micrometers, and ranges therebetween, and wherein the graphene strips are separated from one another by a distance of from about 5 nanometers to about 50 micrometers, and ranges therebetween. Alternatively, bulk graphene may be employed and the dielectric layer is used to form periodic regions of differing permittivity. A testing apparatus and method of analyzing a sample using the present SPR sensors are also provided.
    Type: Application
    Filed: August 1, 2016
    Publication date: November 24, 2016
    Inventors: Phaedon Avouris, Damon B. Farmer, Yilei Li, Hugen Yan
  • Publication number: 20160341661
    Abstract: Techniques for forming nanoribbon or bulk graphene-based SPR sensors are provided. In one aspect, a method of forming a graphene-based SPR sensor is provided which includes the steps of: depositing graphene onto a substrate, wherein the substrate comprises a dielectric layer on a conductive layer, and wherein the graphene is deposited onto the dielectric layer; and patterning the graphene into multiple, evenly spaced graphene strips, wherein each of the graphene strips has a width of from about 50 nanometers to about 5 micrometers, and ranges therebetween, and wherein the graphene strips are separated from one another by a distance of from about 5 nanometers to about 50 micrometers, and ranges therebetween. Alternatively, bulk graphene may be employed and the dielectric layer is used to form periodic regions of differing permittivity. A testing apparatus and method of analyzing a sample using the present SPR sensors are also provided.
    Type: Application
    Filed: August 1, 2016
    Publication date: November 24, 2016
    Inventors: Phaedon Avouris, Damon B. Farmer, Yilei Li, Hugen Yan
  • Publication number: 20160341663
    Abstract: Techniques for forming nanoribbon or bulk graphene-based SPR sensors are provided. In one aspect, a method of forming a graphene-based SPR sensor is provided which includes the steps of: depositing graphene onto a substrate, wherein the substrate comprises a dielectric layer on a conductive layer, and wherein the graphene is deposited onto the dielectric layer; and patterning the graphene into multiple, evenly spaced graphene strips, wherein each of the graphene strips has a width of from about 50 nanometers to about 5 micrometers, and ranges therebetween, and wherein the graphene strips are separated from one another by a distance of from about 5 nanometers to about 50 micrometers, and ranges therebetween. Alternatively, bulk graphene may be employed and the dielectric layer is used to form periodic regions of differing permittivity. A testing apparatus and method of analyzing a sample using the present SPR sensors are also provided.
    Type: Application
    Filed: August 1, 2016
    Publication date: November 24, 2016
    Inventors: Phaedon Avouris, Damon B. Farmer, Yelei Li, Hugen Yan
  • Patent number: 9423345
    Abstract: Techniques for forming nanoribbon or bulk graphene-based SPR sensors are provided. In one aspect, a method of forming a graphene-based SPR sensor is provided which includes the steps of: depositing graphene onto a substrate, wherein the substrate comprises a dielectric layer on a conductive layer, and wherein the graphene is deposited onto the dielectric layer; and patterning the graphene into multiple, evenly spaced graphene strips, wherein each of the graphene strips has a width of from about 50 nanometers to about 5 micrometers, and ranges therebetween, and wherein the graphene strips are separated from one another by a distance of from about 5 nanometers to about 50 micrometers, and ranges therebetween. Alternatively, bulk graphene may be employed and the dielectric layer is used to form periodic regions of differing permittivity. A testing apparatus and method of analyzing a sample using the present SPR sensors are also provided.
    Type: Grant
    Filed: June 24, 2014
    Date of Patent: August 23, 2016
    Assignee: International Business Machines Corporation
    Inventors: Phaedon Avouris, Damon B. Farmer, Yilei Li, Hugen Yan
  • Patent number: 9413075
    Abstract: Structures and methods for cloaking an object to electromagnetic radiation at the microwave and terahertz frequencies include disposing a plurality of graphene sheets about the object. Intermediate layers of a transparent dielectric material can be disposed between graphene sheets to optimize the performance. In other embodiments, the graphene can be formulated into a paint formulation or a fabric and applied to the object. The structures and methods absorb at least a portion of the electromagnetic radiation at the microwave and terabyte frequencies.
    Type: Grant
    Filed: June 14, 2012
    Date of Patent: August 9, 2016
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Phaedon Avouris, Alberto V. Garcia, Chun-Yung Sung, Fengnian Xia, Hugen Yan
  • Publication number: 20150369735
    Abstract: Techniques for forming nanoribbon or bulk graphene-based SPR sensors are provided. In one aspect, a method of forming a graphene-based SPR sensor is provided which includes the steps of: depositing graphene onto a substrate, wherein the substrate comprises a dielectric layer on a conductive layer, and wherein the graphene is deposited onto the dielectric layer; and patterning the graphene into multiple, evenly spaced graphene strips, wherein each of the graphene strips has a width of from about 50 nanometers to about 5 micrometers, and ranges therebetween, and wherein the graphene strips are separated from one another by a distance of from about 5 nanometers to about 50 micrometers, and ranges therebetween. Alternatively, bulk graphene may be employed and the dielectric layer is used to form periodic regions of differing permittivity. A testing apparatus and method of analyzing a sample using the present SPR sensors are also provided.
    Type: Application
    Filed: June 24, 2014
    Publication date: December 24, 2015
    Inventors: Phaedon Avouris, Damon B. Farmer, Yilei Li, Hugen Yan
  • Patent number: 9215835
    Abstract: Electromagnetic interference shielding structures and methods of shielding an object form electromagnetic radiation at frequencies greater than a megahertz generally include providing highly doped graphene sheets about the object to be shielded. The highly doped graphene sheets may have a dopant concentration greater than >1e1013 cm?2, which is effective to reflect the electromagnetic radiation or a dopant concentration of 1e1013 cm?2>n>0 cm?2, which is effective to absorb the electromagnetic radiation.
    Type: Grant
    Filed: March 25, 2015
    Date of Patent: December 15, 2015
    Assignee: International Business Machines Corporation
    Inventors: Phaedon Avouris, Alberto V. Garcia, Chun-Yung Sung, Fengnian Xia, Hugen Yan
  • Patent number: 9210835
    Abstract: Electromagnetic interference shielding structures and methods of shielding an object form electromagnetic radiation at frequencies greater than a megahertz generally include providing highly doped graphene sheets about the object to be shielded. The highly doped graphene sheets may have a dopant concentration greater than >1e1013 cm?2, which is effective to reflect the electromagnetic radiation or a dopant concentration of 1e1013 cm?2>n>0 cm?2, which is effective to absorb the electromagnetic radiation.
    Type: Grant
    Filed: March 25, 2015
    Date of Patent: December 8, 2015
    Assignee: International Business Machines Corporation
    Inventors: Phaedon Avouris, Alberto V. Garcia, Chun-Yung Sung, Fengnian Xia, Hugen Yan
  • Patent number: 9174414
    Abstract: Electromagnetic interference shielding structures and methods of shielding an object form electromagnetic radiation at frequencies greater than a megahertz generally include providing doped graphene sheets about the object to be shielded. The doped graphene sheets have a dopant concentration that is effective to reflect and/or absorb the electromagnetic radiation.
    Type: Grant
    Filed: June 22, 2012
    Date of Patent: November 3, 2015
    Assignee: International Business Machines Corporation
    Inventors: Phaedon Avouris, Alberto V. Garcia, Chun-Yung Sung, Fengnian Xia, Hugen Yan
  • Patent number: 9174413
    Abstract: Electromagnetic interference shielding structures and methods of shielding an object form electromagnetic radiation at frequencies greater than a megahertz generally include providing highly doped graphene sheets about the object to be shielded. The highly doped graphene sheets may have a dopant concentration greater than >1e1013 cm?2, which is effective to reflect the electromagnetic radiation or a dopant concentration of 1e1013 cm?2>n>0 cm?2, which is effective to absorb the electromagnetic radiation.
    Type: Grant
    Filed: June 14, 2012
    Date of Patent: November 3, 2015
    Assignee: International Business Machines Corporation
    Inventors: Phaedon Avouris, Alberto Valdes Garcia, Chun-Yung Sung, Fengnian Xia, Hugen Yan
  • Publication number: 20150208559
    Abstract: Electromagnetic interference shielding structures and methods of shielding an object form electromagnetic radiation at frequencies greater than a megahertz generally include providing highly doped graphene sheets about the object to be shielded. The highly doped graphene sheets may have a dopant concentration greater than>1e1013 cm?2, which is effective to reflect the electromagnetic radiation or a dopant concentration of 1e1013 cm?2>n>0 cm?2, which is effective to absorb the electromagnetic radiation.
    Type: Application
    Filed: March 25, 2015
    Publication date: July 23, 2015
    Inventors: PHAEDON AVOURIS, ALBERTO V. GARCIA, CHUN-YUNG SUNG, FENGNIAN XIA, HUGEN YAN
  • Publication number: 20150201534
    Abstract: Electromagnetic interference shielding structures and methods of shielding an object form electromagnetic radiation at frequencies greater than a megahertz generally include providing highly doped graphene sheets about the object to be shielded. The highly doped graphene sheets may have a dopant concentration greater than >1e1013 cm?2, which is effective to reflect the electromagnetic radiation or a dopant concentration of 1e1013 cm?2>n>0 cm?2, which is effective to absorb the electromagnetic radiation.
    Type: Application
    Filed: March 25, 2015
    Publication date: July 16, 2015
    Inventors: PHAEDON AVOURIS, ALBERTO V. GARCIA, CHUN-YUNG SUNG, FENGNIAN XIA, HUGEN YAN
  • Publication number: 20130335254
    Abstract: Structures and methods for cloaking an object to electromagnetic radiation at the microwave and terahertz frequencies include disposing a plurality of graphene sheets about the object. Intermediate layers of a transparent dielectric material can be disposed between graphene sheets to optimize the performance. In other embodiments, the graphene can be formulated into a paint formulation or a fabric and applied to the object. The structures and methods absorb at least a portion of the electromagnetic radiation at the microwave and terabyte frequencies.
    Type: Application
    Filed: June 22, 2012
    Publication date: December 19, 2013
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: PHAEDON AVOURIS, ALBERTO V. GARCIA, CHUN-YUNG SUNG, FENGNIAN XIA, HUGEN YAN
  • Publication number: 20130333937
    Abstract: Electromagnetic interference shielding structures and methods of shielding an object form electromagnetic radiation at frequencies greater than a megahertz generally include providing highly doped graphene sheets about the object to be shielded. The highly doped graphene sheets may have a dopant concentration greater than >1e1013 cm?2, which is effective to reflect the electromagnetic radiation or a dopant concentration of 1e1013 cm?2>n>0 cm?2, which is effective to absorb the electromagnetic radiation.
    Type: Application
    Filed: June 14, 2012
    Publication date: December 19, 2013
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: PHAEDON AVOURIS, ALBERTO V. GARCIA, CHUN-YUNG SUNG, FENGNIAN XIA, HUGEN YAN
  • Publication number: 20130334472
    Abstract: Electromagnetic interference shielding structures and methods of shielding an object form electromagnetic radiation at frequencies greater than a megahertz generally include providing doped graphene sheets about the object to be shielded. The doped graphene sheets have a dopant concentration that is effective to reflect and/or absorb the electromagnetic radiation.
    Type: Application
    Filed: June 22, 2012
    Publication date: December 19, 2013
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: PHAEDON AVOURIS, ALBERTO V. GARCIA, CHUN-YUNG SUNG, FENGNIAN XIA, HUGEN YAN
  • Publication number: 20130335255
    Abstract: Structures and methods for cloaking an object to electromagnetic radiation at the microwave and terahertz frequencies include disposing a plurality of graphene sheets about the object. Intermediate layers of a transparent dielectric material can be disposed between graphene sheets to optimize the performance. In other embodiments, the graphene can be formulated into a paint formulation or a fabric and applied to the object. The structures and methods absorb at least a portion of the electromagnetic radiation at the microwave and terabyte frequencies.
    Type: Application
    Filed: June 14, 2012
    Publication date: December 19, 2013
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: PHAEDON AVOURIS, ALBERTO V. GARCIA, CHUN-YUNG SUNG, FENGNIAN XIA, HUGEN YAN
  • Patent number: 8610617
    Abstract: Structures and methods for cloaking an object to electromagnetic radiation at the microwave and terahertz frequencies include disposing a plurality of graphene sheets about the object. Intermediate layers of a transparent dielectric material can be disposed between graphene sheets to optimize the performance. In other embodiments, the graphene can be formulated into a paint formulation or a fabric and applied to the object. The structures and methods absorb at least a portion of the electromagnetic radiation at the microwave and terabyte frequencies.
    Type: Grant
    Filed: June 22, 2012
    Date of Patent: December 17, 2013
    Assignee: International Business Machines Corporation
    Inventors: Phaedon Avouris, Alberto V. Garcia, Chun-Yung Sung, Fengnian Xia, Hugen Yan