Patents by Inventor Sun-Kyu Hwang

Sun-Kyu Hwang 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: 20140021511
    Abstract: A high electron mobility transistor (HEMT) according to example embodiments includes a channel layer, a channel supply layer on the channel layer, a source electrode and a drain electrode on at least one of the channel layer and the channel supply layer, a gate electrode between the source electrode and the drain electrode, and a Schottky electrode forming a Schottky contact with the channel supply layer. An upper surface of the channel supply layer may define a Schottky electrode accommodation unit. At least part of the Schottky electrode may be in the Schottky electrode accommodation unit. The Schottky electrode is electrically connected to the source electrode.
    Type: Application
    Filed: March 14, 2013
    Publication date: January 23, 2014
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Woo-chul JEON, Kyoung-yeon KIM, Jong-seob KIM, Joon-yong KIM, Ki-yeol PARK, Young-hwan PARK, Jai-kwang SHIN, Jae-joon OH, Hyuk-soon CHOI, Jong-bong HA, Sun-kyu HWANG, In-jun HWANG
  • Publication number: 20130307026
    Abstract: According to example embodiments, High electron mobility transistors (HEMTs) may include a discontinuation region in a channel region. The discontinuation region may include a plurality of 2DEG unit regions that are spaced apart from one another. The discontinuation region may be formed at an interface between two semiconductor layers or adjacent to the interface. The discontinuation region may be formed by an uneven structure or a plurality of recess regions or a plurality of ion implantation regions. The plurality of 2DEG unit regions may have a nanoscale structure. The plurality of 2DEG unit regions may be formed in a dot pattern, a stripe pattern, or a staggered pattern.
    Type: Application
    Filed: January 29, 2013
    Publication date: November 21, 2013
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sun-kyu HWANG, Jai-kwang SHIN, Hyuk-soon CHOI, Jong-seob KIM, Jae-joon OH, Jong-bong HA, In-jun HWANG, Kyoung-yeon KIM
  • Publication number: 20130074359
    Abstract: A method for drying substrates using isopropyl alcohol (IPA) includes: a pre-stage in which heated fluid is injected to a bottom surface of a substrate to raise a temperature of the substrate simultaneously to injection of an organic solvent to a top surface of the substrate and injection of a dry gas to the top surface thereof to improve a vaporization power of the organic solvent; and a final stage in which the injection of the heated fluid is stopped and the organic solvent and the dry gas are injected to the top surface of the substrate.
    Type: Application
    Filed: November 2, 2012
    Publication date: March 28, 2013
    Applicant: SEMES CO., LTD.
    Inventors: Young-Ju JEONG, Bok-Kyu LEE, Sun-Kyu HWANG, Jeong-Yong BAE, Soo-Bin YONG
  • Patent number: 8385080
    Abstract: A semiconductor module, a socket for the same, and a semiconductor module/socket assembly are disclosed. The semiconductor module includes a printed circuit board including a plurality of semiconductor devices, a plurality of insulating layers and a plurality of metal layers, the plurality of insulating layers and the plurality of metal layers are alternately stacked. Exposed portions of the metal layers are exposed to the outside of the semiconductor module at a first and a second ends of the printed circuit board. The first end and the second end are at opposite ends of the printed circuit board.
    Type: Grant
    Filed: January 14, 2011
    Date of Patent: February 26, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jung-Hoon Kim, Seong-Chan Han, Dong-Chun Lee, Jae-Hoon Choi, Sun-Kyu Hwang
  • Patent number: 8148828
    Abstract: A semiconductor packaging device is provided. Semiconductor package groups, a side retainer wall, and a filling layer may be located on a base plate. The side retainer wall may be located around the semiconductor package groups. The filling layer may be located between the side retainer wall and the semiconductor package groups.
    Type: Grant
    Filed: October 23, 2009
    Date of Patent: April 3, 2012
    Assignee: SAMSUNG Electronics Co., Ltd.
    Inventors: Dong-Woo Shin, Seong-Chan Han, Sun-Kyu Hwang, Hyun-Jong Oh, Nam-Yong Oh
  • Publication number: 20110216516
    Abstract: A semiconductor module, a socket for the same, and a semiconductor module/socket assembly are disclosed. The semiconductor module includes a printed circuit board including a plurality of semiconductor devices, a plurality of insulating layers and a plurality of metal layers, the plurality of insulating layers and the plurality of metal layers are alternately stacked. Exposed portions of the metal layers are exposed to the outside of the semiconductor module at a first and a second ends of the printed circuit board. The first end and the second end are at opposite ends of the printed circuit board.
    Type: Application
    Filed: January 14, 2011
    Publication date: September 8, 2011
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jung-hoon Kim, Seong-chan Han, Dong-chun Lee, Jae-hoon Choi, Sun-kyu Hwang
  • Publication number: 20110168761
    Abstract: An apparatus for repairing a semiconductor module including: a heating block comprising a thermal contact surface for contacting a defective semiconductor package mounted on a substrate of the semiconductor module to heat the defective semiconductor package using a conduction method and to melt a solder of the defective semiconductor package, and a vacuum adsorption line for adsorbing the defective semiconductor package and separating the defective semiconductor package from the substrate; and a heater installed in the heating block.
    Type: Application
    Filed: January 10, 2011
    Publication date: July 14, 2011
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Sun-kyu Hwang, Seong-chan Han, Kwang-ho Chun, Jung-hoon Kim, Dong-su Han
  • Patent number: 7902664
    Abstract: Example embodiments relate to a semiconductor package. The semiconductor package may include a mounting substrate, a semiconductor chip mounted to the mounting substrate, at least one passive component passing therethrough and mounted to the mounting substrate, and a cover covering the mounting substrate, the semiconductor chip and the at least one passive component.
    Type: Grant
    Filed: July 20, 2007
    Date of Patent: March 8, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyo-jae Bang, Dong-chun Lee, Seong-chan Han, Kyung-du Kim, Sun-kyu Hwang
  • Publication number: 20100146813
    Abstract: A method for drying substrates using isopropyl alcohol (IPA) includes: a pre-stage in which heated fluid is injected to a bottom surface of a substrate to raise a temperature of the substrate simultaneously to injection of an organic solvent to a top surface of the substrate and injection of a dry gas to the top surface thereof to improve a vaporization power of the organic solvent; and a final stage in which the injection of the heated fluid is stopped and the organic solvent and the dry gas are injected to the top surface of the substrate.
    Type: Application
    Filed: May 22, 2008
    Publication date: June 17, 2010
    Applicant: SEMES CO., LTD.
    Inventors: Young-Ju Jeong, Bok-Kyu Lee, Sun-Kyu Hwang, Jeong-Yong Bae, Soo-Bin Yong
  • Publication number: 20100102427
    Abstract: A semiconductor packaging device is provided. Semiconductor package groups, a side retainer wall, and a filling layer may be located on a base plate. The side retainer wall may be located around the semiconductor package groups. The filling layer may be located between the side retainer wall and the semiconductor package groups.
    Type: Application
    Filed: October 23, 2009
    Publication date: April 29, 2010
    Applicant: Samsung Electronics Co., Ltd
    Inventors: Dong-Woo Shin, Seong-Chan Han, Sun-Kyu Hwang, Hyun-Jong Oh, Nam-Yong Ho
  • Patent number: 7601043
    Abstract: A field emission display (FED) with an integrated triode structure is provided. The FED can be manufactured without using a complex packaging process and have a significantly reduced well diameter and a significantly reduced cathode-to-anode distance. In the FED, front and rear panels form a single body using an anode insulating layer as an intermediate. A method for manufacturing the FED using anodic oxidation is also provided.
    Type: Grant
    Filed: December 26, 2003
    Date of Patent: October 13, 2009
    Assignee: Postech Foundation
    Inventors: Kun Hong Lee, Sun Kyu Hwang, Ok Joo Lee
  • Patent number: 7554255
    Abstract: An electric field emission device having a triode structure is fabricated by using an anodic oxidation process. The device includes a supporting substrate, a bottom electrode layer to be used as an cathode electrode of the device, a gate insulating layer having a plurality of first sub-micro holes, a gate electrode layer having a plurality of second sub-micro holes connecting to the first sub-micro holes, an anode insulating layer having a plurality of third sub-micro holes connecting to the second sub-micro holes, a top electrode layer for hermetically sealing the device, the top electrode layer being used as an anode of the device and a plurality of emitters formed in the first sub-micro holes. The emitters are formed so as to come into as close contact as possible to the electrodes of the device, which results in decreasing a driving voltage.
    Type: Grant
    Filed: July 30, 2003
    Date of Patent: June 30, 2009
    Assignee: Postech Foundation
    Inventors: Kun-Hong Lee, Sun-Kyu Hwang, Soo-Hwan Jeong
  • Publication number: 20080023812
    Abstract: Example embodiments relate to a semiconductor package. The semiconductor package may include a mounting substrate, a semiconductor chip mounted to the mounting substrate, at least one passive component passing therethrough and mounted to the mounting substrate, and a cover covering the mounting substrate, the semiconductor chip and the at least one passive component.
    Type: Application
    Filed: July 20, 2007
    Publication date: January 31, 2008
    Inventors: Hyo-jae Bang, Dong-chun Lee, Seong-chan Han, Kyung-du Kim, Sun-kyu Hwang
  • Publication number: 20060283009
    Abstract: An electronic component mounting apparatus that includes a demagnetizer used to demagnetize a head nozzle, and a method for demagnetizing an electronic component apparatus. The method may include setting conditions, mounting electronic components, and demagnetizing a head nozzle of the electronic component mounting apparatus based on the conditions.
    Type: Application
    Filed: June 15, 2006
    Publication date: December 21, 2006
    Inventors: Dong-Woo Shin, Byong-Kun Bae, Nam-Yong Oh, Dong-Chun Lee, Seong-Chan Han, Sun-Kyu Hwang
  • Publication number: 20050285502
    Abstract: An electric field emission device having a triode structure is fabricated by using an anodic oxidation process. The device includes a supporting substrate, a bottom electrode layer to be used as an cathode electrode of the device, a gate insulating layer having a plurality of first sub-micro holes, a gate electrode layer having a plurality of second sub-micro holes connecting to the first sub-micro holes, an anode insulating layer having a plurality of third sub-micro holes connecting to the second sub-micro holes, a top electrode layer for hermetically sealing the device, the top electrode layer being used as an anode of the device and a plurality of emitters formed in the first sub-micro holes. The emitters are formed so as to come into as close contact as possible to the electrodes of the device, which results in decreasing a driving voltage.
    Type: Application
    Filed: July 30, 2003
    Publication date: December 29, 2005
    Applicant: POSTECH FOUNDATION
    Inventors: Kun-Hong Lee, Sun-Kyu Hwang, Soo-Hwan Jeong