Patents by Inventor James Jian-Qiang Lu

James Jian-Qiang Lu 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: 11677041
    Abstract: Radiation detecting-structures and fabrications methods thereof are presented. The methods include, for instance: providing a substrate, the substrate including at least one trench extending into the substrate from an upper surface thereof; and epitaxially forming a radiation-responsive semiconductor material layer from one or more sidewalls of the at least one trench of the substrate, the radiation-responsive semiconductor material layer responding to incident radiation by generating charge carriers therein. In one embodiment, the sidewalls of the at least one trench of the substrate include a (111) surface of the substrate, which facilitates epitaxially forming the radiation-responsive semiconductor material layer. In another embodiment, the radiation-responsive semiconductor material layer includes hexagonal boron nitride, and the epitaxially forming includes providing the hexagonal boron nitride with an a-axis aligned parallel to the sidewalls of the trench.
    Type: Grant
    Filed: June 22, 2015
    Date of Patent: June 13, 2023
    Assignee: Rensselaer Polytechnic Institute
    Inventors: Rajendra P. Dahal, Ishwara B. Bhat, Yaron Danon, James Jian-Qiang Lu
  • Patent number: 10199247
    Abstract: Embodiments of the invention relate generally to directed self-assembly (DSA) and, more particularly, to the DSA of electronic components using diamagnetic levitation.
    Type: Grant
    Filed: October 16, 2015
    Date of Patent: February 5, 2019
    Assignee: Rensselaer Polytechnic Institute
    Inventors: Anton Tkachenko, James Jian-qiang Lu
  • Patent number: 9810794
    Abstract: Methods for fabricating radiation-detecting structures are presented. The methods include, for instance: fabricating a radiation-detecting structure, the fabricating including: providing a semiconductor substrate, the semiconductor substrate having a plurality of cavities extending into the semiconductor substrate from a surface thereof; and electrophoretically depositing radiation-detecting particles of a radiation-detecting material into the plurality of cavities extending into the semiconductor substrate, where the electrophoretically depositing fills the plurality of cavities with the radiation-detecting particles. In one embodiment, the providing can include electrochemically etching the semiconductor substrate to form the plurality of cavities extending into the semiconductor substrate.
    Type: Grant
    Filed: June 22, 2015
    Date of Patent: November 7, 2017
    Assignee: RENSSELAER POLYTECHNIC INSTITUTE
    Inventors: Rajendra P. Dahal, Ishwara B. Bhat, Yaron Danon, James Jian-Qiang Lu
  • Publication number: 20170229330
    Abstract: Embodiments of the invention relate generally to directed self-assembly (DSA) and, more particularly, to the DSA of electronic components using diamagnetic levitation.
    Type: Application
    Filed: October 16, 2015
    Publication date: August 10, 2017
    Inventors: Anton Tkachenko, James Jian-qiang Lu
  • Publication number: 20170139060
    Abstract: Methods for fabricating radiation-detecting structures are presented. The methods include, for instance: fabricating a radiation-detecting structure, the fabricating including: providing a semiconductor substrate, the semiconductor substrate having a plurality of cavities extending into the semiconductor substrate from a surface thereof; and electrophoretically depositing radiation-detecting particles of a radiation-detecting material into the plurality of cavities extending into the semiconductor substrate, where the electrophoretically depositing fills the plurality of cavities with the radiation-detecting particles. In one embodiment, the providing can include electrochemically etching the semiconductor substrate to form the plurality of cavities extending into the semiconductor substrate.
    Type: Application
    Filed: June 22, 2015
    Publication date: May 18, 2017
    Applicant: RENSSELAER POLYTECHNIC INSTITUTE
    Inventors: Rajendra P. DAHAL, Ishwara B. BHAT, Yaron DANON, James Jian-Qiang LU
  • Publication number: 20170133543
    Abstract: Radiation detecting-structures and fabrications methods thereof are presented. The methods include, for instance: providing a substrate, the substrate including at least one trench extending into the substrate from an upper surface thereof; and epitaxially forming a radiation-responsive semiconductor material layer from one or more sidewalls of the at least one trench of the substrate, the radiation-responsive semiconductor material layer responding to incident radiation by generating charge carriers therein. In one embodiment, the sidewalls of the at least one trench of the substrate include a (111) surface of the substrate, which facilitates epitaxially forming the radiation-responsive semiconductor material layer. In another embodiment, the radiation-responsive semiconductor material layer includes hexagonal boron nitride, and the epitaxially forming includes providing the hexagonal boron nitride with an a-axis aligned parallel to the sidewalls of the trench.
    Type: Application
    Filed: June 22, 2015
    Publication date: May 11, 2017
    Applicant: RENSSELAER POLYTECHNIC INSTITUTE
    Inventors: Rajendra P. DAHAL, Ishwara B. BHAT, Yaron DANON, James Jian-Qiang LU
  • Patent number: 9418979
    Abstract: Disclosed herein is a method of assembling an array of light emitting diode (LED) dies on a substrate comprising: positioning dies in fluid; exposing the dies to a magnetic force to attract the dies onto magnets that are arranged at pre-determined locations either on or near the substrate; and forming permanent connections between the dies and the substrate thereby constituting an array of LED dies on a substrate.
    Type: Grant
    Filed: December 14, 2015
    Date of Patent: August 16, 2016
    Assignee: RENSSEALER POLYTECHNIC INSTITUTE
    Inventors: Robert F. Karlicek, Jr., James Jian-Qiang Lu, Charles Sanford Goodwin, Anton Tkachenko
  • Publication number: 20160111408
    Abstract: Disclosed herein is a method of assembling an array of light emitting diode (LED) dies on a substrate comprising: positioning dies in fluid; exposing the dies to a magnetic force to attract the dies onto magnets that are arranged at pre-determined locations either on or near the substrate; and forming permanent connections between the dies and the substrate thereby constituting an array of LED dies on a substrate.
    Type: Application
    Filed: December 14, 2015
    Publication date: April 21, 2016
    Inventors: Robert F. Karlicek, JR., James Jian-Qiang Lu, Charles Sanford Goodwin, Anton Tkachenko
  • Patent number: 9245875
    Abstract: Disclosed herein is a method of assembling an array of light emitting diode (LED) dies on a substrate comprising: positioning dies in fluid; exposing the dies to a magnetic force to attract the dies onto magnets that are arranged at pre-determined locations either on or near the substrate; and forming permanent connections between the dies and the substrate thereby constituting an array of LED dies on a substrate.
    Type: Grant
    Filed: April 19, 2013
    Date of Patent: January 26, 2016
    Assignee: RENSSELAER POLYTECHNIC INSTITUTE
    Inventors: Robert F. Karlicek, James Jian-Qiang Lu, Charles Sanford Goodwin, Anton Tkachenko
  • Publication number: 20150050761
    Abstract: Disclosed herein is a method of assembling an array of light emitting diode (LED) dies on a substrate comprising: positioning dies in fluid; exposing the dies to a magnetic force to attract the dies onto magnets that are arranged at pre-determined locations either on or near the substrate; and forming permanent connections between the dies and the substrate thereby constituting an array of LED dies on a substrate.
    Type: Application
    Filed: April 19, 2013
    Publication date: February 19, 2015
    Inventors: Robert F. Karlicek, James Jian-Qiang Lu, Charles Sanford Goodwin, Anton Tkachenko