Patents by Inventor Sang-Hyun Oh

Sang-Hyun Oh 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: 20160118564
    Abstract: Disclosed herein is an LED chip including electrode pads. The LED chip includes a semiconductor stack including a first conductive type semiconductor layer, a second conductive type semiconductor layer on the first conductive type semiconductor layer, and an active layer interposed between the first conductive type semiconductor layer and the second conductive type semiconductor layer; a first electrode pad located on the second conductive type semiconductor layer opposite to the first conductive type semiconductor layer; a first electrode extension extending from the first electrode pad and connected to the first conductive type semiconductor layer; a second electrode pad electrically connected to the second conductive type semiconductor layer; and an insulation layer interposed between the first electrode pad and the second conductive type semiconductor layer. The LED chip includes the first electrode pad on the second conductive type semiconductor layer, thereby increasing a light emitting area.
    Type: Application
    Filed: December 30, 2015
    Publication date: April 28, 2016
    Inventors: Ye Seul Kim, Kyoung Wan Kim, Yeo Jin Yoon, Sang Hyun Oh, Keum Ju Lee, Jin Woong Lee, Da Yeon Jeong, Sang Won Woo
  • Patent number: 9269871
    Abstract: Disclosed is a light emitting diode (LED) comprising a light emitting stacked structure and an electrode structure formed to have a pattern on the light emitting stacked structure. The electrode structure of the LED includes a cluster of reflectors disposed along the pattern on the light emitting stacked structure, and a pad material layer formed to entirely cover the reflectors.
    Type: Grant
    Filed: April 30, 2015
    Date of Patent: February 23, 2016
    Assignee: SEOUL VIOSYS CO., LTD.
    Inventors: Ye Seul Kim, Da Yeon Jeong, Kyoung Wan Kim, Yeo Jin Yoon, Sang Hyun Oh
  • Patent number: 9257442
    Abstract: A three dimensional (3-D) non-volatile memory device includes a pipe gate including a first pipe gate, a second pipe gate formed on the first pipe gate, and a first interlayer insulating layer interposed between the first pipe gate and the second pipe gate, word lines alternately stacked with second interlayer insulating layers on the pipe gate, a pipe channel buried within the pipe gate, and memory cell channels coupled to the pipe channel and arranged to pass through the word lines and the second interlayer insulating layers.
    Type: Grant
    Filed: October 2, 2014
    Date of Patent: February 9, 2016
    Assignee: SK Hynix Inc.
    Inventors: Seo Hyun Lee, Byung Soo Park, Sang Hyun Oh, Sun Mi Park
  • Patent number: 9228265
    Abstract: Methods for template-stripping a single metallic nano-tip structure from a template containing a plurality of ready-to-be-template-stripped inverted metallic nano-tip structures include attaching the metallic nano-tip structure to a wire handle or a cantilever. A metallic nano-tip assembly includes a single metallic nano-tip structure attached to a handle or mounted on a cantilever structure. The metallic nano-tip assembly may be conductive.
    Type: Grant
    Filed: May 10, 2013
    Date of Patent: January 5, 2016
    Assignee: UNIVERSITY OF ROCHESTER
    Inventors: Lukas Novotny, Sang-Hyun Oh
  • Publication number: 20150311390
    Abstract: A method of fabricating a light emitting diode (LED) includes: sequentially stacking a first conductivity-type semiconductor layer, an active layer, and a second conductivity-type semiconductor layer on a substrate; and separating the substrate into unit chips, and at the same time, forming a concavo-convex structure having the shape of irregular vertical lines in a side surface of the unit chip.
    Type: Application
    Filed: July 9, 2015
    Publication date: October 29, 2015
    Inventors: Kyung Wan KIM, Tae Kyoon KIM, Yeo Jin YOON, Ye Seul KIM, Sang Hyun OH, Jin Woong LEE, In Soo KIM
  • Patent number: 9117700
    Abstract: A three-dimensional (3-D) nonvolatile memory device includes a channel layer protruded from a substrate, a plurality of memory cells stacked along the channel layer, a source line coupled to the end of one side of the channel layer, a bit line coupled to the end of the other side of the channel layer, a first junction interposed between the end of one side of the channel layer and the source line and configured to have a P type impurity doped therein, and a second junction interposed between the end of the other side of the channel layer and the bit line and configured to have an N type impurity doped therein.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: August 25, 2015
    Assignee: SK Hynix Inc.
    Inventors: Sang Hyun Oh, Seiichi Aritome, Sang Bum Lee
  • Publication number: 20150236210
    Abstract: Disclosed herein in an LED chip including electrode pads. The LED chip includes a semiconductor stack including a first conductive type semiconductor layer, a second conductive type semiconductor layer on the first conductive type semiconductor layer, and an active layer interposed between the first conductive type semiconductor layer and the second conductive type semiconductor layer, a first electrode pad located on the second conductive type semiconductor layer opposite to the second conductive type semiconductor layer, a first electrode extension extending from the first electrode pad and connected to the first conductive type semiconductor layer, a second electrode pad electrically connected to the second conductive type semiconductor layer, and an insulation layer interposed between the first electrode pad and the second conductive type semiconductor layer. The LED chip includes the first electrode pad on the second conductive type semiconductor layer, thereby increasing a light emitting area.
    Type: Application
    Filed: February 24, 2015
    Publication date: August 20, 2015
    Inventors: Ye Seul Kim, Kyoung Wan Kim, Yeo Jin Yoon, Sang Hyun Oh, Keum Ju Lee, Jin Woong Lee, Da Yeon Jeong, Sang Won Woo
  • Publication number: 20150236216
    Abstract: Disclosed is a light emitting diode (LED) comprising a light emitting stacked structure and an electrode structure formed to have a pattern on the light emitting stacked structure. The electrode structure of the LED includes a cluster of reflectors disposed along the pattern on the light emitting stacked structure, and a pad material layer formed to entirely cover the reflectors.
    Type: Application
    Filed: April 30, 2015
    Publication date: August 20, 2015
    Inventors: Ye Seul Kim, Da Yeon Jeong, Kyoung Wan Kim, Yeo Jin Yoon, Sang Hyun Oh
  • Patent number: 9112102
    Abstract: Provided are a light emitting diode (LED) and a method of fabricating the same. The LED includes a unit chip. The unit chip includes a substrate, and a first conductivity-type semiconductor layer, an active layer, and a second conductivity-type semiconductor layer which are sequentially stacked on the substrate. A concavo-convex structure having the shape of irregular vertical lines is disposed in a side surface of the unit chip.
    Type: Grant
    Filed: October 30, 2013
    Date of Patent: August 18, 2015
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Kyung Wan Kim, Tae Kyoon Kim, Yeo Jin Yoon, Ye Seul Kim, Sang Hyun Oh, Jin Woong Lee, In Soo Kim
  • Publication number: 20150203969
    Abstract: Methods for the formation of individual, precisely shaped nano- or micro-scale metallic structures, particularly pyramids. With this technique, mass fabrication of high-quality, uniform, and ultra-sharp pyramids, cones and wedges is achieved. The high yield, reproducibility, durability and massively parallel fabrication methods of this disclosure provide structures suitable for reliable optical sensing and detection and for cementing near-field optical imaging and spectroscopy as a routine characterization.
    Type: Application
    Filed: March 13, 2013
    Publication date: July 23, 2015
    Inventors: Sang-hyun Oh, Timothy W. Johnson
  • Publication number: 20150191003
    Abstract: Methods for template-stripping a single metallic nano-tip structure from a template containing a plurality of ready-to-be-template-stripped inverted metallic nano-tip structures include attaching the metallic nano-tip structure to a wire handle or a cantilever. A metallic nano-tip assembly includes a single metallic nano-tip structure attached to a handle or mounted on a cantilever structure. The metallic nano-tip assembly may be conductive.
    Type: Application
    Filed: May 10, 2013
    Publication date: July 9, 2015
    Applicants: Regents of the University of Minnesota, UNIVERSITY OF ROCHESTER
    Inventors: Lukas Novotny, Sang-Hyun Oh
  • Publication number: 20150144981
    Abstract: A light-emitting diode (LED) according to an exemplary embodiment includes a light-emitting structure arranged on a first surface of a substrate, the light-emitting structure including a first conductivity-type semiconductor layer, a second conductivity-type semiconductor layer, and an active layer interposed between the first conductivity-type semiconductor layer and the second conductivity-type semiconductor layer. A first distributed Bragg reflector is arranged on a second surface of the substrate opposite to the first surface, the first distributed Bragg reflector to reflect light emitted from the light-emitting structure. The first distributed Bragg reflector has a reflectivity of at least 90% with respect to blue, green, and red light.
    Type: Application
    Filed: January 28, 2015
    Publication date: May 28, 2015
    Inventors: Duk Il Suh, Jae Moo Kim, Kyoung Wan Kim, Yeo Jin Yoon, Ye Seul Kim, Sang Hyun Oh, Jin Woong Lee
  • Patent number: 9024345
    Abstract: Disclosed is a light emitting diode (LED) comprising a light emitting stacked structure and an electrode structure formed to have a pattern on the light emitting stacked structure. The electrode structure of the LED includes a cluster of reflectors disposed along the pattern on the light emitting stacked structure, and a pad material layer formed to entirely cover the reflectors.
    Type: Grant
    Filed: April 5, 2011
    Date of Patent: May 5, 2015
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Ye Seul Kim, Da Yeon Jeong, Kyoung Wan Kim, Yeo Jin Yoon, Sang Hyun Oh
  • Patent number: 9000563
    Abstract: A capacitor of a semiconductor device includes a capacitor structure configured to include electrode layers and dielectric layers alternately stacked, edge regions each stepwise patterned, and a central region disposed between the edge regions, sacrificial layers disposed within the respective electrode layers in the edge regions of the capacitor structure, and support plugs formed in the central region of the capacitor structure and configured to penetrate the electrode layers and the dielectric layers.
    Type: Grant
    Filed: October 29, 2014
    Date of Patent: April 7, 2015
    Assignee: SK Hynix Inc.
    Inventors: Sun Mi Park, Sang Hyun Oh, Sang Bum Lee
  • Patent number: 8987772
    Abstract: Disclosed herein is an LED chip including electrode pads. The LED chip includes a semiconductor stack including a first conductive type semiconductor layer, a second conductive type semiconductor layer on the first conductive type semiconductor layer, and an active layer interposed between the first conductive type semiconductor layer and the second conductive type semiconductor layer; a first electrode pad located on the second conductive type semiconductor layer opposite to the first conductive type semiconductor layer; a first electrode extension extending from the first electrode pad and connected to the first conductive type semiconductor layer; a second electrode pad electrically connected to the second conductive type semiconductor layer; and an insulation layer interposed between the first electrode pad and the second conductive type semiconductor layer. The LED chip includes the first electrode pad on the second conductive type semiconductor layer, thereby increasing a light emitting area.
    Type: Grant
    Filed: February 28, 2011
    Date of Patent: March 24, 2015
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Ye Seul Kim, Kyoung Wan Kim, Yeo Jin Yoon, Sang-Hyun Oh, Keum Ju Lee, Jin Woong Lee, Da Yeon Jeong, Sang Won Woo
  • Publication number: 20150054052
    Abstract: A three dimensional (3-D) non-volatile memory device includes a pipe gate including a first pipe gate, a second pipe gate formed on the first pipe gate, and a first interlayer insulating layer interposed between the first pipe gate and the second pipe gate, word lines alternately stacked with second interlayer insulating layers on the pipe gate, a pipe channel buried within the pipe gate, and memory cell channels coupled to the pipe channel and arranged to pass through the word lines and the second interlayer insulating layers.
    Type: Application
    Filed: October 2, 2014
    Publication date: February 26, 2015
    Inventors: Seo Hyun LEE, Byung Soo PARK, Sang Hyun OH, Sun Mi PARK
  • Patent number: 8963183
    Abstract: A light-emitting diode (LED) according to an exemplary embodiment includes a light-emitting structure arranged on a first surface of a substrate, the light-emitting structure including a first conductivity-type semiconductor layer, a second conductivity-type semiconductor layer, and an active layer interposed between the first conductivity-type semiconductor layer and the second conductivity-type semiconductor layer. A first distributed Bragg reflector is arranged on a second surface of the substrate opposite to the first surface, the first distributed Bragg reflector to reflect light emitted from the light-emitting structure. The first distributed Bragg reflector has a reflectivity of at least 90% with respect to blue, green, and red light.
    Type: Grant
    Filed: February 6, 2013
    Date of Patent: February 24, 2015
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Duk Il Suh, Jae Moo Kim, Kyoung Wan Kim, Yeo Jin Yoon, Ye Seul Kim, Sang-Hyun Oh, Jin Woong Lee
  • Publication number: 20150050796
    Abstract: A capacitor of a semiconductor device includes a capacitor structure configured to include electrode layers and dielectric layers alternately stacked, edge regions each stepwise patterned, and a central region disposed between the edge regions, sacrificial layers disposed within the respective electrode layers in the edge regions of the capacitor structure, and support plugs formed in the central region of the capacitor structure and configured to penetrate the electrode layers and the dielectric layers.
    Type: Application
    Filed: October 29, 2014
    Publication date: February 19, 2015
    Inventors: Sun Mi PARK, Sang Hyun OH, Sang Bum LEE
  • Publication number: 20150044428
    Abstract: A method for fabricating articles for use in optics, electronics, and plasmonics includes large scale lithography or other patterning and conformal deposition such as by atomic layer deposition.
    Type: Application
    Filed: August 7, 2014
    Publication date: February 12, 2015
    Inventors: Sang-Hyun Oh, Xiaoshu Chen
  • Patent number: 8948562
    Abstract: The present invention provides templating methods for replicating patterned metal films from a template substrate such as for use in plasmonic devices and metamaterials. Advantageously, the template substrate is reusable and can provide plural copies of the structure of the template substrate. Because high-quality substrates that are inherently smooth and flat are available, patterned metal films in accordance with the present invention can advantageously provide surfaces that replicate the surface characteristics of the template substrate both in the patterned regions and in the unpatterned regions.
    Type: Grant
    Filed: November 24, 2009
    Date of Patent: February 3, 2015
    Assignee: Regents of the University of Minnesota
    Inventors: David J. Norris, Sang Eon Han, Aditya Bhan, Prashant Nagpal, Nathan Charles Lindquist, Sang-Hyun Oh