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).
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Patent number: 10613027Abstract: 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: GrantFiled: August 1, 2016Date of Patent: April 7, 2020Assignee: International Business Machines CorporationInventors: Phaedon Avouris, Damon B. Farmer, Yilei Li, Hugen Yan
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Patent number: 10564097Abstract: 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: GrantFiled: August 1, 2016Date of Patent: February 18, 2020Assignee: International Business Machines CorporationInventors: Phaedon Avouris, Damon B. Farmer, Yilei Li, Hugen Yan
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Patent number: 9594018Abstract: 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: GrantFiled: August 1, 2016Date of Patent: March 14, 2017Assignee: International Business Machines CorporationInventors: Phaedon Avouris, Damon B. Farmer, Yilei Li, Hugen Yan
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Publication number: 20160341662Abstract: 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: ApplicationFiled: August 1, 2016Publication date: November 24, 2016Inventors: Phaedon Avouris, Damon B. Farmer, Yilei Li, Hugen Yan
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Publication number: 20160341661Abstract: 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: ApplicationFiled: August 1, 2016Publication date: November 24, 2016Inventors: Phaedon Avouris, Damon B. Farmer, Yilei Li, Hugen Yan
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Publication number: 20160341663Abstract: 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: ApplicationFiled: August 1, 2016Publication date: November 24, 2016Inventors: Phaedon Avouris, Damon B. Farmer, Yelei Li, Hugen Yan
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Patent number: 9423345Abstract: 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: GrantFiled: June 24, 2014Date of Patent: August 23, 2016Assignee: International Business Machines CorporationInventors: Phaedon Avouris, Damon B. Farmer, Yilei Li, Hugen Yan
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Patent number: 9413075Abstract: 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: GrantFiled: June 14, 2012Date of Patent: August 9, 2016Assignee: GLOBALFOUNDRIES INC.Inventors: Phaedon Avouris, Alberto V. Garcia, Chun-Yung Sung, Fengnian Xia, Hugen Yan
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Publication number: 20150369735Abstract: 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: ApplicationFiled: June 24, 2014Publication date: December 24, 2015Inventors: Phaedon Avouris, Damon B. Farmer, Yilei Li, Hugen Yan
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Patent number: 9215835Abstract: 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: GrantFiled: March 25, 2015Date of Patent: December 15, 2015Assignee: International Business Machines CorporationInventors: Phaedon Avouris, Alberto V. Garcia, Chun-Yung Sung, Fengnian Xia, Hugen Yan
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Patent number: 9210835Abstract: 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: GrantFiled: March 25, 2015Date of Patent: December 8, 2015Assignee: International Business Machines CorporationInventors: Phaedon Avouris, Alberto V. Garcia, Chun-Yung Sung, Fengnian Xia, Hugen Yan
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Patent number: 9174414Abstract: 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: GrantFiled: June 22, 2012Date of Patent: November 3, 2015Assignee: International Business Machines CorporationInventors: Phaedon Avouris, Alberto V. Garcia, Chun-Yung Sung, Fengnian Xia, Hugen Yan
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Patent number: 9174413Abstract: 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: GrantFiled: June 14, 2012Date of Patent: November 3, 2015Assignee: International Business Machines CorporationInventors: Phaedon Avouris, Alberto Valdes Garcia, Chun-Yung Sung, Fengnian Xia, Hugen Yan
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Publication number: 20150208559Abstract: 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: ApplicationFiled: March 25, 2015Publication date: July 23, 2015Inventors: PHAEDON AVOURIS, ALBERTO V. GARCIA, CHUN-YUNG SUNG, FENGNIAN XIA, HUGEN YAN
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Publication number: 20150201534Abstract: 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: ApplicationFiled: March 25, 2015Publication date: July 16, 2015Inventors: PHAEDON AVOURIS, ALBERTO V. GARCIA, CHUN-YUNG SUNG, FENGNIAN XIA, HUGEN YAN
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Publication number: 20130335254Abstract: 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: ApplicationFiled: June 22, 2012Publication date: December 19, 2013Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: PHAEDON AVOURIS, ALBERTO V. GARCIA, CHUN-YUNG SUNG, FENGNIAN XIA, HUGEN YAN
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Publication number: 20130333937Abstract: 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: ApplicationFiled: June 14, 2012Publication date: December 19, 2013Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: PHAEDON AVOURIS, ALBERTO V. GARCIA, CHUN-YUNG SUNG, FENGNIAN XIA, HUGEN YAN
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Publication number: 20130334472Abstract: 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: ApplicationFiled: June 22, 2012Publication date: December 19, 2013Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: PHAEDON AVOURIS, ALBERTO V. GARCIA, CHUN-YUNG SUNG, FENGNIAN XIA, HUGEN YAN
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Publication number: 20130335255Abstract: 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: ApplicationFiled: June 14, 2012Publication date: December 19, 2013Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: PHAEDON AVOURIS, ALBERTO V. GARCIA, CHUN-YUNG SUNG, FENGNIAN XIA, HUGEN YAN
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Patent number: 8610617Abstract: 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: GrantFiled: June 22, 2012Date of Patent: December 17, 2013Assignee: International Business Machines CorporationInventors: Phaedon Avouris, Alberto V. Garcia, Chun-Yung Sung, Fengnian Xia, Hugen Yan