Patents by Inventor Karan Mehrotra

Karan Mehrotra 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).

  • Publication number: 20230337535
    Abstract: Devices include a substrate, a collector layer, and an emitter layer positively biased relative to the collector. Devices further include a semiconductor layer located between the collector and the emitter. The semiconductor layer includes an organic semiconductor polymer with a donor-acceptor structure.
    Type: Application
    Filed: June 7, 2023
    Publication date: October 19, 2023
    Inventors: Mingqian He, Robert George Manley, Karan Mehrotra, Hsin-Fei Meng, Hsiao-Wen Zan
  • Patent number: 11737361
    Abstract: Devices include a substrate, a collector layer, and an emitter layer positively biased relative to the collector. Devices further include a semiconductor layer located between the collector and the emitter. The semiconductor layer includes an organic semiconductor polymer with a donor-acceptor structure.
    Type: Grant
    Filed: July 26, 2022
    Date of Patent: August 22, 2023
    Assignees: CORNING INCORPORATED, NATIONAL YANG MING CHIAO TUNG UNIVERSITY
    Inventors: Mingqian He, Robert George Manley, Karan Mehrotra, Hsin-Fei Meng, Hsiao-Wen Zan
  • Publication number: 20220384737
    Abstract: Devices include a substrate, a collector layer, and an emitter layer positively biased relative to the collector. Devices further include a semiconductor layer located between the collector and the emitter. The semiconductor layer includes an organic semiconductor polymer with a donor-acceptor structure.
    Type: Application
    Filed: July 26, 2022
    Publication date: December 1, 2022
    Inventors: Mingqian He, Robert George Manley, Karan Mehrotra, Hsin-Fei Meng, Hsiao-Wen Zan
  • Patent number: 11437587
    Abstract: Described herein are electronics that incorporate heterocyclic organic compounds. More specifically, described herein are organic electronics systems that are combined with donor-acceptor organic semiconductors, along with methods for making such devices, and uses thereof.
    Type: Grant
    Filed: November 26, 2019
    Date of Patent: September 6, 2022
    Assignees: CORNING INCORPORATED, NATIONAL CHIAO-TUNG UNIVERSITY
    Inventors: Mingqian He, Robert George Manley, Karan Mehrotra, Hsin-Fei Meng, Hsiao-Wen Zan
  • Publication number: 20220255208
    Abstract: The THz waveguides disclosed herein are used to transmit signals having a THz frequency in the range from 0.1 THz to 10 THz and include an alumina core surrounded by an optional cladding. The core may have a diameter (D1) in the range from 10 ?m to 500 ?m and may be comprised of a ceramic ribbon having a dielectric constant (Dk). The optional cladding may have a dielectric constant (Dk) less than the core. The THz waveguides can be formed using a continuous firing process and nano-perforation technology that enables access to a wide form factor range. In one example, rectangular waveguides, or ribbons, may be fabricated in the 10 ?m to 200 ?m thick range at widths in the range from sub-millimeters to several meters and lengths in the range from millimeters to several hundred meters.
    Type: Application
    Filed: April 22, 2022
    Publication date: August 11, 2022
    Inventors: Michael Edward Badding, Ming-Jun Li, Karan Mehrotra, Cheng-Gang Zhuang
  • Publication number: 20220209149
    Abstract: A thin-film transistor (TFT), includes: a substrate (202); an organic semiconductor (OSC) layer (210) positioned on the substrate; a dielectric layer (214) positioned on the OSC layer; and a polymeric interlayer (212) disposed in-between the OSC layer and the dielectric layer, such that the dielectric layer is configured to exhibit a double layer capacitance effect. A method of forming a thin-film transistor, includes: providing a substrate; providing a bottom gate layer atop the substrate; disposing consecutively from the substrate, an organic semiconductor (OSC) layer, a dielectric layer, and a top gate layer; and patterning the OSC layer, the dielectric layer, and the top gate layer using a single mask.
    Type: Application
    Filed: May 7, 2020
    Publication date: June 30, 2022
    Inventors: Mingqian He, Jin Jang, Xiuling Li, Robert George Manley, Karan Mehrotra, Nikolay Zhelev Zhelev
  • Patent number: 11342649
    Abstract: The THz waveguides disclosed herein are used to transmit signals having a THz frequency in the range from 0.1 THz to 10 THz and include an alumina core surrounded by an optional cladding. The core may have a diameter (D1) in the range from 10 ?m to 500 ?m and may be comprised of a ceramic ribbon having a dielectric constant (Dk). The optional cladding may have a dielectric constant (Dk) less than the core. The THz waveguides can be formed using a continuous firing process and nano-perforation technology that enables access to a wide form factor range. In one example, rectangular waveguides, or ribbons, may be fabricated in the 10 ?m to 200 ?m thick range at widths in the range from sub-millimeters to several meters and lengths in the range from millimeters to several hundred meters.
    Type: Grant
    Filed: August 25, 2020
    Date of Patent: May 24, 2022
    Assignee: Corning Incorporated
    Inventors: Michael Edward Badding, Ming-Jun Li, Karan Mehrotra, Cheng-Gang Zhuang
  • Patent number: 11329228
    Abstract: A method of fabricating microstructures of polar elastomers includes coating a substrate with a dielectric material including a polar elastomer, coating the dielectric material with a photoresist, exposing the photoresist to ultraviolet (UV) light through a photomask to define a pattern on the photoresist, developing the photoresist to form the pattern on the photoresist, etching the dielectric material to transfer the pattern from the photoresist to the dielectric material, and removing the photoresist from the patterned dielectric material.
    Type: Grant
    Filed: December 19, 2017
    Date of Patent: May 10, 2022
    Assignee: Corning Incorporated
    Inventors: Robert George Manley, Karan Mehrotra, Barry James Paddock, Rajesh Vaddi, Nikolay Zhelev Zhelev, Bin Zhu
  • Patent number: 11283023
    Abstract: Disclosed is a polymer blend comprising an organic semiconductor (OSC) polymer blended with an isolating polymer and method for making the same. The OSC polymer includes a diketopyrrolopyrrole fused thiophene polymeric material, and the fused thiophene is beta-substituted. The isolating polymer includes a non-conjugated backbone, and the isolating polymer may be one of polyacrylonitrile, alkyl substituted polyacrylonitrile, polystyrene, polysulfonate, polycarbonate, an elastomer block copolymer, derivatives thereof, copolymers thereof and mixtures thereof. The method includes blending the OSC polymer with an isolating polymer in an organic solvent to create a polymer blend and depositing a thin film of the polymer blend over a substrate. Also disclosed is an organic semiconductor device that includes a thin semiconducting film comprising OSC polymer.
    Type: Grant
    Filed: June 1, 2018
    Date of Patent: March 22, 2022
    Assignee: Corning Incorporated
    Inventors: Mingqian He, Yang Li, James Robert Matthews, Karan Mehrotra, Weijun Niu, Arthur Lawrence Wallace
  • Publication number: 20210135109
    Abstract: The present disclosure describes a method of crosslinking fluoroelastomers, or more precisely thermally-crosslinkable fluorine-containing polymers, and to devices such as OTFTs (organic thin film transistors) incorporating such polymers. In some embodiments, a method comprises mixing: a solvent, a thermally crosslinkable fluorine-containing polymer, and one or more organic bases to form a mixed solution. The mixed solution is deposited over a substrate to form a first layer. The first layer is then crosslinked by thermal treatment to form a crosslinked first layer. The polymer is selected from: homopolymers of vinylidene fluoride; and copolymers of vinylidene fluoride with fluorine-containing ethylenic monomers. The one or more organic bases each have a pKa of 10 to 14.
    Type: Application
    Filed: July 30, 2018
    Publication date: May 6, 2021
    Inventors: Mingqian He, Yang Li, Karan Mehrotra, Hongxiang Wang
  • Publication number: 20210135114
    Abstract: A method of fabricating microstructures of polar elastomers includes coating a substrate with a dielectric material including a polar elastomer, coating the dielectric material with a photoresist, exposing the photoresist to ultraviolet (UV) light through a photomask to define a pattern on the photoresist, developing the photoresist to form the pattern on the photoresist, etching the dielectric material to transfer the pattern from the photoresist to the dielectric material, and removing the photoresist from the patterned dielectric material
    Type: Application
    Filed: December 19, 2017
    Publication date: May 6, 2021
    Inventors: Robert George Manley, Karan Mehrotra, Barry James Paddock, Rajesh Vaddi, Nikolay Zhelev Zhelev, Bin Zhu
  • Publication number: 20210094865
    Abstract: A method for forming a glass stack, comprising: obtaining a glass sheet; selecting a plurality of portions of the glass sheet having a matching glass characteristic, wherein the glass characteristic is at least one of warp, bow, total thickness variation (TTV), and wedge; cutting a plurality of glass wafers from the selected portions of the glass sheet, and stacking the plurality of glass wafers to form a glass stack.
    Type: Application
    Filed: September 30, 2020
    Publication date: April 1, 2021
    Inventors: Mark Francis Krol, Karan Mehrotra
  • Publication number: 20210063637
    Abstract: The THz waveguides disclosed herein are used to transmit signals having a THz frequency in the range from 0.1 THz to 10 THz and include an alumina core surrounded by an optional cladding. The core may have a diameter (D1) in the range from 10 ?m to 500 ?m and may be comprised of a ceramic ribbon having a dielectric constant (Dk). The optional cladding may have a dielectric constant (Dk) less than the core. The THz waveguides can be formed using a continuous firing process and nano-perforation technology that enables access to a wide form factor range. In one example, rectangular waveguides, or ribbons, may be fabricated in the 10 ?m to 200 ?m thick range at widths in the range from sub-millimeters to several meters and lengths in the range from millimeters to several hundred meters.
    Type: Application
    Filed: August 25, 2020
    Publication date: March 4, 2021
    Inventors: Michael Edward Badding, Ming-Jun Li, Karan Mehrotra, Cheng-Gang Zhuang
  • Patent number: 10880482
    Abstract: A camera module includes an image sensor, a lens assembly, and a mechanical actuator. The lens assembly is positioned to focus an image on the image sensor and includes a variable focus lens. The mechanical actuator causes relative translation between the lens assembly and the image sensor in each of an X-direction parallel to a first lateral axis and a Y-direction parallel to a second lateral axis. The first lateral axis is substantially perpendicular to an optical axis of the lens assembly, and the second lateral axis substantially perpendicular to each of the optical axis and the first lateral axis. The lens assembly is fixed relative to the image sensor in each of a first rotational direction about the first lateral axis and a second rotational direction about the second lateral axis.
    Type: Grant
    Filed: June 17, 2019
    Date of Patent: December 29, 2020
    Assignee: CORNING INCORPORATED
    Inventors: Joseph Marshall Kunick, Karan Mehrotra, Mark J Soulliere, Paul Michael Then
  • Publication number: 20200220084
    Abstract: Described herein are electronics that incorporate heterocyclic organic compounds. More specifically, described herein are organic electronics systems that are combined with donor-acceptor organic semiconductors, along with methods for making such devices, and uses thereof.
    Type: Application
    Filed: November 26, 2019
    Publication date: July 9, 2020
    Inventors: Mingqian He, Robert George Manley, Karan Mehrotra, Hsin-Fei Meng, Hsiao-Wen Zan
  • Publication number: 20200217816
    Abstract: Described herein are ultrasensitive gas sensors based on a vertical-channel organic semiconductor (OSC) diode, along with methods for making such devices, and uses thereof. The organic sensing layer comprises a fused thiophene-based organic polymer that connects top and bottom electrodes to deliver a vertical current flow. The nano-porous top-electrode structure enables the contact between ambient gas molecules and the vertical organic channel. The device has high sensitivity, is easy to process, and has a long shelf life.
    Type: Application
    Filed: December 4, 2019
    Publication date: July 9, 2020
    Inventors: Mingqian He, Yang Li, Hung-Chuan Liu, Karan Mehrotra, Hsin-Fei Meng, Hsiao-Wen Zan
  • Publication number: 20200212304
    Abstract: Disclosed is a polymer blend comprising an organic semiconductor (OSC) polymer blended with an isolating polymer and method for making the same. The OSC polymer includes a diketopyrrolopyrrole fused thiophene polymeric material, and the fused thiophene is beta-substituted. The isolating polymer includes a non-conjugated backbone, and the isolating polymer may be one of polyacrylonitrile, alkyl substituted polyacrylonitrile, polystyrene, polysulfonate, polycarbonate, an elastomer block copolymer, derivatives thereof, copolymers thereof and mixtures thereof. The method includes blending the OSC polymer with an isolating polymer in an organic solvent to create a polymer blend and depositing a thin film of the polymer blend over a substrate. Also disclosed is an organic semiconductor device that includes a thin semiconducting film comprising OSC polymer.
    Type: Application
    Filed: June 1, 2018
    Publication date: July 2, 2020
    Inventors: Mingqian He, Yang Li, James Robert Matthews, Karan Mehrotra, Weijun Niu, Arthur Lawrence Wallace
  • Publication number: 20200148580
    Abstract: A glass article, having SiO2 from about 61 wt. % to about 62 wt. %; Al2O3 from about 18 wt. % to about 18.4 wt. %; B2O3 from about 7.1 wt. % to about 8.3 wt. %; MgO from about 1.9 wt. % to about 2.2 wt. %; CaO from about 6.5 wt. % to about 6.9 wt. %; SrO from about 2.5 wt. % to about 3.6 wt. %; BaO from about 0.6 wt. % to about 1.0 wt. %; and SnO2 from about 0.1 wt. % to about 0.2 wt. %, a refractive index of about 1.515 to about 1.517 at an optical wavelength of about 589 nm; a VD of about 57 to about 67; less than or equal to about 5 ?m total thickness variation over a component diameter of about 200 mm, less than or equal to about 20 ?m warp over a component diameter of about 200 mm, and wedge less than or equal to about 0.1 arcmin.
    Type: Application
    Filed: October 24, 2019
    Publication date: May 14, 2020
    Inventors: Bradley Frederick Bowden, Mark Francis Krol, Karan Mehrotra, Katherine Rose Rossington
  • Publication number: 20200115584
    Abstract: A polar elastomer dielectric layer is formed on a substrate by dynamically dispensing a solution containing the polar elastomer on the substrate and curing it at an elevated temperature. The polar elastomer can include poly(vinylidene fluoride-co-hexa-fluoropropylene) (e-PVDF-HFP). They dynamic dispensing process can include spinning the substrate at a first speed, depositing the polar elastomer solution on the substrate, and spinning the substrate at a second speed.
    Type: Application
    Filed: December 19, 2017
    Publication date: April 16, 2020
    Inventors: Robert George Manley, Karan Mehrotra, Barry James Paddock, Rajesh Vaddi, Nikolay Zhelev Zhelev, Bin Zhu
  • Publication number: 20190306430
    Abstract: A camera module includes an image sensor, a lens assembly, and a mechanical actuator. The lens assembly is positioned to focus an image on the image sensor and includes a variable focus lens. The mechanical actuator causes relative translation between the lens assembly and the image sensor in each of an X-direction parallel to a first lateral axis and a Y-direction parallel to a second lateral axis. The first lateral axis is substantially perpendicular to an optical axis of the lens assembly, and the second lateral axis substantially perpendicular to each of the optical axis and the first lateral axis. The lens assembly is fixed relative to the image sensor in each of a first rotational direction about the first lateral axis and a second rotational direction about the second lateral axis.
    Type: Application
    Filed: June 17, 2019
    Publication date: October 3, 2019
    Inventors: Joseph Marshall Kunick, Karan Mehrotra, Mark J Soulliere, Paul Michael Then