Patents by Inventor Woong-ki Hong

Woong-ki Hong 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: 9966375
    Abstract: A semiconductor device includes a compound semiconductor layer, where the compound semiconductor layer includes separate fin patterns in separate regions. The separate fin patterns may include different materials. The separate fin patterns may include different dimensions, including one or more of width and height of one or more portions of the fin patterns. The separate fin patterns may include an upper pattern and a lower pattern. The upper pattern and the lower pattern may include different materials. The upper pattern and the lower pattern may include different dimensions. Separate regions may include separate ones of an NMOS or a PMOS. The semiconductor device may include gate electrodes on the compound semiconductor layer. Separate gate electrodes may intersect the separate fin patterns.
    Type: Grant
    Filed: February 22, 2016
    Date of Patent: May 8, 2018
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yong-Joon Choi, Tae-Yong Kwon, Mirco Cantoro, Chang-Jae Yang, Dong-Hoon Khang, Woo-Ram Kim, Cheol Kim, Seung-Jin Mun, Seung-Mo Ha, Do-Hyoung Kim, Seong-Ju Kim, So-Ra You, Woong-ki Hong
  • Publication number: 20160315085
    Abstract: A semiconductor device includes a compound semiconductor layer, where the compound semiconductor layer includes separate fin patterns in separate regions. The separate fin patterns may include different materials. The separate fin patterns may include different dimensions, including one or more of width and height of one or more portions of the fin patterns. The separate fin patterns may include an upper pattern and a lower pattern. The upper pattern and the lower pattern may include different materials. The upper pattern and the lower pattern may include different dimensions. Separate regions may include separate ones of an NMOS or a PMOS. The semiconductor device may include gate electrodes on the compound semiconductor layer. Separate gate electrodes may intersect the separate fin patterns.
    Type: Application
    Filed: February 22, 2016
    Publication date: October 27, 2016
    Inventors: Yong-Joon CHOI, Tae-Yong KWON, Mirco CANTORO, Chang-Jae YANG, Dong-Hoon KHANG, Woo-Ram KIM, Cheol KIM, Seung-Jin MUN, Seung-Mo HA, Do-Hyoung KIM, Seong-Ju KIM, So-Ra YOU, Woong-ki HONG
  • Patent number: 8202751
    Abstract: Provided are a flip-chip nitride-based light emitting device having an n-type clad layer, an active layer and a p-type clad layer sequentially stacked thereon, comprising a reflective layer formed on the p-type clad layer and at least one transparent conductive thin film layer made up of transparent conductive materials capable of inhibiting diffusion of materials constituting the reflective layer, interposed between the p-type clad layer and reflective layer; and a process for preparing the same. In accordance with the flip-chip nitride-based light emitting device of the present invention and a process for preparing the same, there are provided advantages such as improved ohmic contact properties with the p-type clad layer, leading to increased wire bonding efficiency and yield upon packaging the light emitting device, capability to improve luminous efficiency and life span of the device due to low specific contact resistance and excellent current-voltage properties.
    Type: Grant
    Filed: December 1, 2010
    Date of Patent: June 19, 2012
    Assignee: Samsung LED Co., Ltd.
    Inventors: Tae-Yeon Seong, June-O Song, Kyoung-Kook Kim, Woong-Ki Hong
  • Patent number: 8053786
    Abstract: Provided are a top-emitting nitride based light emitting device having an n-type clad layer, an active layer and a p-type clad layer sequentially stacked thereon, comprising an interface modification layer formed on the p-type clad layer and a transparent conductive thin film layer made up of a transparent conductive material formed on the interface modification layer; and a process for preparing the same. In accordance with the top-emitting nitride-based light emitting device of the present invention and a process for preparing the same, there are provided advantages such as improved ohmic contact with the p-type clad layer, leading to increased wire bonding efficiency and yield upon packaging the light emitting device, capability to improve luminous efficiency and life span of the device due to low specific contact resistance and excellent current-voltage properties.
    Type: Grant
    Filed: August 31, 2010
    Date of Patent: November 8, 2011
    Assignee: Samsung LED Co., Ltd.
    Inventors: Tae-Yeon Seong, June-O Song, Kyoung-Kook Kim, Woong-Ki Hong
  • Publication number: 20110086448
    Abstract: Provided are a flip-chip nitride-based light emitting device having an n-type clad layer, an active layer and a p-type clad layer sequentially stacked thereon, comprising a reflective layer formed on the p-type clad layer and at least one transparent conductive thin film layer made up of transparent conductive materials capable of inhibiting diffusion of materials constituting the reflective layer, interposed between the p-type clad layer and reflective layer; and a process for preparing the same. In accordance with the flip-chip nitride-based light emitting device of the present invention and a process for preparing the same, there are provided advantages such as improved ohmic contact properties with the p-type clad layer, leading to increased wire bonding efficiency and yield upon packaging the light emitting device, capability to improve luminous efficiency and life span of the device due to low specific contact resistance and excellent current-voltage properties.
    Type: Application
    Filed: December 1, 2010
    Publication date: April 14, 2011
    Inventors: Tae-Yeon Seong, June-O Song, Kyoung-Kook Kim, Woong-Ki Hong
  • Patent number: 7880176
    Abstract: Provided are a top-emitting nitride-based light emitting device having an n-type clad layer, an active layer and a p-type clad layer sequentially stacked thereon, comprising an interface modification layer formed on the p-type clad layer and a transparent conductive thin film layer made up of a transparent conductive material formed on the interface modification layer; and a process for preparing the same. In accordance with the top-emitting nitride-based light emitting device of the present invention and a process for preparing the same, there are provided advantages such as improved ohmic contact with the p-type clad layer, leading to increased wire bonding efficiency and yield upon packaging the light emitting device, capability to improve luminous efficiency and life span of the device due to low specific contact resistance and excellent current-voltage properties.
    Type: Grant
    Filed: July 22, 2005
    Date of Patent: February 1, 2011
    Assignee: Samsung LED Co., Ltd.
    Inventors: Tae-Yeon Seong, June-O Song, Kyoung-Kook Kim, Woong-Ki Hong
  • Publication number: 20110018027
    Abstract: Provided are a top-emitting nitride based light emitting device having an n-type clad layer, an active layer and a p-type clad layer sequentially stacked thereon, comprising an interface modification layer formed on the p-type clad layer and a transparent conductive thin film layer made up of a transparent conductive material formed on the interface modification layer; and a process for preparing the same. In accordance with the top-emitting nitride-based light emitting device of the present invention and a process for preparing the same, there are provided advantages such as improved ohmic contact with the p-type clad layer, leading to increased wire bonding efficiency and yield upon packaging the light emitting device, capability to improve luminous efficiency and life span of the device due to low specific contact resistance and excellent current-voltage properties.
    Type: Application
    Filed: August 31, 2010
    Publication date: January 27, 2011
    Inventors: Tae-Yeon Seong, June-O Song, Kyoung-Kook Kim, Woong-Ki Hong
  • Patent number: 7872271
    Abstract: Provided are a flip-chip nitride-based light emitting device having an n-type clad layer, an active layer and a p-type clad layer sequentially stacked thereon, comprising a reflective layer formed on the p-type clad layer and at least one transparent conductive thin film layer made up of transparent conductive materials capable of inhibiting diffusion of materials constituting the reflective layer, interposed between the p-type clad layer and reflective layer; and a process for preparing the same. In accordance with the flip-chip nitride-based light emitting device of the present invention and a process for preparing the same, there are provided advantages such as improved ohmic contact properties with the p-type clad layer, leading to increased wire bonding efficiency and yield upon packaging the light emitting device, capability to improve luminous efficiency and life span of the device due to low specific contact resistance and excellent current-voltage properties.
    Type: Grant
    Filed: July 12, 2005
    Date of Patent: January 18, 2011
    Assignee: Samsung Led Co., Ltd.
    Inventors: Tae-Yeon Seong, June-O Song, Kyoung-Kook Kim, Woong-Ki Hong
  • Patent number: 7666693
    Abstract: Provided are a top-emitting N-based light emitting device and a method of manufacturing the same. The device includes a substrate, an n-type clad layer, an active layer, a p-type clad layer, and a multi ohmic contact layer, which are sequentially stacked. The multi ohmic contact layer includes one or more stacked structures, each including a modified metal layer and a transparent conductive thin film layer, which are repetitively stacked on the p-type clad layer. The modified metal layer is formed of an Ag-based material.
    Type: Grant
    Filed: July 25, 2008
    Date of Patent: February 23, 2010
    Assignees: Samsung Electronics Co., Ltd., Gwangju Institute of Science and Technology
    Inventors: June-o Song, Tae-yeon Seong, Joon-seop Kwak, Woong-ki Hong
  • Publication number: 20080299687
    Abstract: Provided are a top-emitting N-based light emitting device and a method of manufacturing the same. The device includes a substrate, an n-type clad layer, an active layer, a p-type clad layer, and a multi ohmic contact layer, which are sequentially stacked. The multi ohmic contact layer includes one or more stacked structures, each including a modified metal layer and a transparent conductive thin film layer, which are repetitively stacked on the p-type clad layer. The modified metal layer is formed of an Ag-based material.
    Type: Application
    Filed: July 25, 2008
    Publication date: December 4, 2008
    Applicants: Samsung Electronics Co., Ltd., Gwangju Institute of Science and Technology
    Inventors: June-o Song, Tae-yeon Seong, Joon-seop Kwak, Woong-ki Hong
  • Publication number: 20080224165
    Abstract: Provided are a top-emitting nitride-based light emitting device having an n-type clad layer, an active layer and a p-type clad layer sequentially stacked thereon, comprising an interface modification layer formed on the p-type clad layer and a transparent conductive thin film layer made up of a transparent conductive material formed on the interface modification layer; and a process for preparing the same. In accordance with the top-emitting nitride-based light emitting device of the present invention and a process for preparing the same, there are provided advantages such as improved ohmic contact with the p-type clad layer, leading to increased wire bonding efficiency and yield upon packaging the light emitting device, capability to improve luminous efficiency and life span of the device due to low specific contact resistance and excellent current-voltage properties.
    Type: Application
    Filed: July 22, 2005
    Publication date: September 18, 2008
    Inventors: Tae-Yeon Seong, June-O Song, Kyoung-Kook Kim, Woong-Ki Hong
  • Patent number: 7417264
    Abstract: Provided are a top-emitting N-based light emitting device and a method of manufacturing the same. The device includes a substrate, an n-type clad layer, an active layer, a p-type clad layer, and a multi ohmic contact layer, which are sequentially stacked. The multi ohmic contact layer includes one or more stacked structures, each including a modified metal layer and a transparent conductive thin film layer, which are repetitively stacked on the p-type clad layer. The modified metal layer is formed of an Ag-based material.
    Type: Grant
    Filed: December 15, 2004
    Date of Patent: August 26, 2008
    Assignees: Samsung Electronics Co., Ltd., Gwangju Institute of Science and Technology
    Inventors: June-o Song, Tae-yeon Seong, Joon-seop Kwak, Woong-ki Hong
  • Publication number: 20080121914
    Abstract: Provided are a flip-chip nitride-based light emitting device having an n-type clad layer, an active layer and a p-type clad layer sequentially stacked thereon, comprising a reflective layer formed on the p-type clad layer and at least one transparent conductive thin film layer made up of transparent conductive materials capable of inhibiting diffusion of materials constituting the reflective layer, interposed between the p-type clad layer and reflective layer; and a process for preparing the same. In accordance with the flip-chip nitride-based light emitting device of the present invention and a process for preparing the same, there are provided advantages such as improved ohmic contact properties with the p-type clad layer, leading to increased wire bonding efficiency and yield upon packaging the light emitting device, capability to improve luminous efficiency and life span of the device due to low specific contact resistance and excellent current-voltage properties.
    Type: Application
    Filed: July 12, 2005
    Publication date: May 29, 2008
    Inventors: Tae-Yeon Seong, June-O Song, Kyoung-Kook Kim, Woong-Ki Hong
  • Publication number: 20050133809
    Abstract: Provided are a top-emitting N-based light emitting device and a method of manufacturing the same. The device includes a substrate, an n-type clad layer, an active layer, a p-type clad layer, and a multi ohmic contact layer, which are sequentially stacked. The multi ohmic contact layer includes one or more stacked structures, each including a modified metal layer and a transparent conductive thin film layer, which are repetitively stacked on the p-type clad layer. The modified metal layer is formed of an Ag-based material.
    Type: Application
    Filed: December 15, 2004
    Publication date: June 23, 2005
    Applicants: Samsung Electronics Co., Ltd., Gwangju Institute of Science and Technology
    Inventors: June-o Song, Tae-yeon Seong, Joon-seop Kwak, Woong-ki Hong