Patents by Inventor Evan C. O'HARA

Evan C. O'HARA 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: 10981801
    Abstract: Briefly, embodiments of systems and/or methods for synthesis of zinc oxide are described, including a chamber enclosure, a wafer substrate holder, a fluid handling system, and sequences for implementation.
    Type: Grant
    Filed: April 14, 2016
    Date of Patent: April 20, 2021
    Assignee: Seoul Semiconductor Co., Ltd.
    Inventors: Jacob J. Richardson, Evan C. O'Hara
  • Patent number: 10981800
    Abstract: Briefly, embodiments of systems and/or methods for synthesis of zinc oxide are described, including a chamber enclosure, a wafer substrate holder, a fluid handling system, and sequences for implementation.
    Type: Grant
    Filed: April 14, 2016
    Date of Patent: April 20, 2021
    Assignee: Seoul Semiconductor Co., Ltd.
    Inventors: Jacob J. Richardson, Evan C. O'Hara
  • Publication number: 20210005788
    Abstract: Briefly, an embodiment comprises fabricating and/or uses of one or more zinc oxide crystals to form a transparent conductive structure.
    Type: Application
    Filed: July 22, 2020
    Publication date: January 7, 2021
    Inventors: Jacob J. Richardson, Evan C. O'Hara, Chanseob Shin
  • Patent number: 10741724
    Abstract: LED devices having high-quality single crystal ZnO structures for spreading currents and extracting light out of the LEDs are disclosed. In one aspect, a LED device is provided to include a substrate; a first semiconductor layer exhibiting a first conductivity type and formed over the substrate; an active light-emitting structure formed over the first semiconductor layer, the active light-emitting structure operable to emit light under electrical excitation; a second semiconductor layer exhibiting a second conductivity type and formed over the active light-emitting structure; and a single crystal ZnO structure formed over the second semiconductor layer and including a bottom single crystal ZnO portion over the second semiconductor layer and a top single crystal ZnO portion extending from the bottom single crystal ZnO portion, wherein the bottom single crystal ZnO portion is a contiguous single crystal ZnO portion without having voids.
    Type: Grant
    Filed: September 1, 2016
    Date of Patent: August 11, 2020
    Assignee: SEOUL VIOSYS CO., LTD.
    Inventors: Jacob J. Richardson, Evan C. O'Hara, SeomGeun Lee, ChanSeop Shin, MyeongHak Yang, JinWoong Lee
  • Patent number: 10727374
    Abstract: Briefly, in accordance with one embodiment, a transparent conductive structure and method to form such a structure are described. For example, an apparatus may include an optoelectronic device. In such an embodiment, an optoelectronic device may include one or more zinc oxide crystals forming a single contiguous three-dimensional transparent conductive structure. The single contiguous three-dimensional transparent conductive structure may include one or more regions thereof having one or more three dimensional geometrical features in the one or more regions of the single contiguous three-dimensional transparent conductive structure so that the single contiguous three-dimensional transparent conductive structure possesses additional electrical-type and/or optical-type properties. For example, additional electrical-type and/or optical-type properties may include electrical current management and/or light management properties.
    Type: Grant
    Filed: September 4, 2015
    Date of Patent: July 28, 2020
    Assignee: Seoul Semiconductor Co., Ltd.
    Inventors: Jacob J. Richardson, Evan C. O'Hara, Chanseob Shin
  • Patent number: 10689775
    Abstract: A solution deposition method includes: applying a liquid precursor solution to a substrate, the precursor solution including an oxide of a first metal, a hydroxide of the first metal, or a combination thereof, dissolved in an aqueous ammonia solution; evaporating the precursor solution to directly form a solid seed layer on the substrate, the seed layer including an oxide of the first metal, a hydroxide of the first metal, or a combination thereof, the seed layer being substantially free of organic compounds; and growing a bulk layer on the substrate, using the seed layer as a growth site or a nucleation site.
    Type: Grant
    Filed: October 19, 2018
    Date of Patent: June 23, 2020
    Assignee: Seoul Semiconductor Co., Ltd.
    Inventors: Jacob J. Richardson, Evan C. O'Hara, Daniel Estrada
  • Publication number: 20200039836
    Abstract: Briefly, embodiments of systems and/or methods for synthesis of zinc oxide are described, including a chamber enclosure, a wafer substrate holder, a fluid handling system, and sequences for implementation.
    Type: Application
    Filed: August 13, 2019
    Publication date: February 6, 2020
    Inventors: Jacob J. Richardson, Evan C. O'Hara
  • Patent number: 10535803
    Abstract: A light-emitting diode includes, a semiconductor stack including a first semiconductor layer, a second semiconductor layer, and an active layer. The light-emitting diode also includes a transparent conductive layer including a first transparent conductive layer disposed on the second semiconductor layer and a second transparent conductive layer disposed on the first transparent conductive layer. The second transparent conductive layer has a conductivity different than the first transparent conductive layer.
    Type: Grant
    Filed: June 12, 2018
    Date of Patent: January 14, 2020
    Assignee: Seoul Semiconductor Co., Ltd.
    Inventors: Chan Seob Shin, Hyoung Jin Lim, Kyoung Wan Kim, Yeo Jin Yoon, Jacob J Richardson, Daniel Estrada, Evan C. O'Hara, Haoran Shi
  • Patent number: 10407315
    Abstract: Briefly, embodiments of systems and/or methods for synthesis of zinc oxide are described, including a chamber enclosure, a wafer substrate holder, a fluid handling system, and sequences for implementation.
    Type: Grant
    Filed: April 14, 2016
    Date of Patent: September 10, 2019
    Assignee: SEOUL SEMICONDUCTOR CO., LTD.
    Inventors: Jacob J. Richardson, Evan C. O'Hara
  • Patent number: 10411164
    Abstract: A light-emitting electrode having a ZnO transparent electrode and a method for manufacturing the same are provided. A light-emitting element according to an embodiment comprises: a light-emitting structure comprising a first conductive semiconductor layer, an active layer, and a second conductive semiconductor layer; and a ZnO transparent electrode, which is positioned on the second conductive semiconductor layer, which makes an Ohmic contact with the second conductive semiconductor layer, and which comprises monocrystalline ZnO, wherein the diffraction angle of a peak of the ZnO transparent electrode, which results from X-ray diffraction (XRD) omega 2theta (?2?) scan, is in the range of ±1% with regard to the diffraction angle of a peak of the second conductive semiconductor layer, which results from XRD ?2? scan, and the FWHM of a main peak of the ZnO transparent electrode, which results from XRD omega (?) scan, is equal to or less than 900 arc sec.
    Type: Grant
    Filed: August 23, 2016
    Date of Patent: September 10, 2019
    Assignee: SEOUL VIOSYS CO., LTD.
    Inventors: Jin Woong Lee, Chan Seob Shin, Keum Ju Lee, Seom Geun Lee, Myoung Hak Yang, Jacob J. Richardson, Evan C. O'Hara
  • Publication number: 20190048488
    Abstract: A solution deposition method includes: applying a liquid precursor solution to a substrate, the precursor solution including an oxide of a first metal, a hydroxide of the first metal, or a combination thereof, dissolved in an aqueous ammonia solution; evaporating the precursor solution to directly form a solid seed layer on the substrate, the seed layer including an oxide of the first metal, a hydroxide of the first metal, or a combination thereof, the seed layer being substantially free of organic compounds; and growing a bulk layer on the substrate, using the seed layer as a growth site or a nucleation site.
    Type: Application
    Filed: October 19, 2018
    Publication date: February 14, 2019
    Inventors: Jacob J. Richardson, Evan C. O'Hara, Daniel Estrada
  • Patent number: 10106909
    Abstract: A solution deposition method includes: applying a liquid precursor solution to a substrate, the precursor solution including an oxide of a first metal, a hydroxide of the first metal, or a combination thereof, dissolved in an aqueous ammonia solution; evaporating the precursor solution to directly form a solid seed layer on the substrate, the seed layer including an oxide of the first metal, a hydroxide of the first metal, or a combination thereof, the seed layer being substantially free of organic compounds; and growing a bulk layer on the substrate, using the seed layer as a growth site or a nucleation site.
    Type: Grant
    Filed: May 26, 2017
    Date of Patent: October 23, 2018
    Assignee: Seoul Semiconductor Co., Ltd.
    Inventors: Jacob J. Richardson, Evan C. O'Hara, Daniel Estrada
  • Publication number: 20180294384
    Abstract: A light-emitting diode includes, a semiconductor stack including a first semiconductor layer, a second semiconductor layer, and an active layer. The light-emitting diode also includes a transparent conductive layer including a first transparent conductive layer disposed on the second semiconductor layer and a second transparent conductive layer disposed on the first transparent conductive layer. The second transparent conductive layer has a conductivity different than the first transparent conductive layer.
    Type: Application
    Filed: June 12, 2018
    Publication date: October 11, 2018
    Inventors: Chan Seob SHIN, Hyoung Jin LIM, Kyoung Wan KIM, Yeo Jin YOON, Jacob J RICHARDSON, Daniel ESTRADA, Evan C. O'HARA, Haoran SHI
  • Patent number: 10020425
    Abstract: A light-emitting diode includes, a semiconductor stack including a first semiconductor layer, a second semiconductor layer, and an active layer. The light-emitting diode also includes a transparent conductive layer including a first transparent conductive layer disposed on the second semiconductor layer and a second transparent conductive layer disposed on the first transparent conductive layer. The second transparent conductive layer has a conductivity different than the first transparent conductive layer.
    Type: Grant
    Filed: September 25, 2013
    Date of Patent: July 10, 2018
    Assignee: Seoul Semiconductor Co., Ltd.
    Inventors: Chan Seob Shin, Hyoung Jin Lim, Kyoung Wan Kim, Yeo Jin Yoon, Jacob J Richardson, Daniel Estrada, Evan C. O'Hara, Haoran Shi
  • Publication number: 20170297920
    Abstract: Briefly, embodiments of systems and/or methods for synthesis of zinc oxide are described, including a chamber enclosure, a wafer substrate holder, a fluid handling system, and sequences for implementation.
    Type: Application
    Filed: April 14, 2016
    Publication date: October 19, 2017
    Inventors: Jacob J. Richardson, Evan C. O'Hara
  • Publication number: 20170297921
    Abstract: Briefly, embodiments of systems and/or methods for synthesis of zinc oxide are described, including a chamber enclosure, a wafer substrate holder, a fluid handling system, and sequences for implementation.
    Type: Application
    Filed: April 14, 2016
    Publication date: October 19, 2017
    Inventors: Jacob J. Richardson, Evan C. O'Hara
  • Publication number: 20170297922
    Abstract: Briefly, embodiments of systems and/or methods for synthesis of zinc oxide are described, including a chamber enclosure, a wafer substrate holder, a fluid handling system, and sequences for implementation.
    Type: Application
    Filed: April 14, 2016
    Publication date: October 19, 2017
    Inventors: Jacob J. Richardson, Evan C. O'Hara
  • Publication number: 20170260643
    Abstract: A solution deposition method includes: applying a liquid precursor solution to a substrate, the precursor solution including an oxide of a first metal, a hydroxide of the first metal, or a combination thereof, dissolved in an aqueous ammonia solution; evaporating the precursor solution to directly form a solid seed layer on the substrate, the seed layer including an oxide of the first metal, a hydroxide of the first metal, or a combination thereof, the seed layer being substantially free of organic compounds; and growing a bulk layer on the substrate, using the seed layer as a growth site or a nucleation site.
    Type: Application
    Filed: May 26, 2017
    Publication date: September 14, 2017
    Inventors: Jacob J. Richardson, Evan C. O'Hara, Daniel Estrada
  • Patent number: 9702054
    Abstract: A solution deposition method including: applying a liquid precursor solution to a substrate, the precursor solution including an oxide of a first metal, a hydroxide of the first metal, or a combination thereof, dissolved in an aqueous ammonia solution; evaporating the precursor solution to directly form a solid seed layer on the substrate, the seed layer including an oxide of the first metal, a hydroxide of the first metal, or a combination thereof, the seed layer being substantially free of organic compounds; and growing a bulk layer on the substrate, using the seed layer as a growth site or a nucleation site.
    Type: Grant
    Filed: November 10, 2014
    Date of Patent: July 11, 2017
    Assignee: Seoul Semiconductor Co., Ltd.
    Inventors: Jacob J. Richardson, Evan C. O'Hara, Daniel Estrada
  • Publication number: 20170069797
    Abstract: Briefly, an embodiment comprises fabricating and/or uses of one or more zinc oxide crystals to form a transparent conductive structure.
    Type: Application
    Filed: September 4, 2015
    Publication date: March 9, 2017
    Inventors: Jacob J. Richardson, Evan C. O'Hara, Chanseob Shin