Patents by Inventor Keun-Hwi Cho

Keun-Hwi Cho 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: 9576959
    Abstract: Provided is a semiconductor device having first and second gate electrodes. The semiconductor device includes a substrate, an active region extending in a first direction on the substrate, a first gate electrode crossing the active region and extending in a second direction, and a second gate electrode extending in the second direction on the first gate electrode, wherein the first gate electrode has a first width in the first direction, and wherein the second gate electrode has a second width in the first direction, the second width being less than the first width.
    Type: Grant
    Filed: January 29, 2016
    Date of Patent: February 21, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yaoqi Dong, Mun Hyeon Kim, Keun Hwi Cho, Shigenobu Maeda, Han Su Oh
  • Publication number: 20170033217
    Abstract: A semiconductor device includes a gate structure on a substrate. The gate structure includes a first gate insulation pattern, a conductive pattern for controlling a threshold voltage, a first gate electrode and a first mask sequentially stacked. A dummy gate structure is spaced apart from the gate electrode. The dummy gate structure includes a first stressor pattern including titanium oxide. Source/drain regions are adjacent to the gate structure. The source/drain regions are doped with p-type impurities. The first stressor pattern may apply a stress onto the channel region of a transistor, and consequently the transistor having good electrical characteristics may be obtained.
    Type: Application
    Filed: April 8, 2016
    Publication date: February 2, 2017
    Inventors: BYOUNG-HAK HONG, BON-WOONG KOO, SUNG-IL PARK, KYU-BAIK CHANG, KEUN-HWI CHO, DAE-WON HA
  • Patent number: 9520458
    Abstract: Embodiments of the inventive concepts provide a resistor and a semiconductor device including the same. The resistor includes a substrate, a device isolation layer in the substrate which defines active regions arranged in a first direction a resistance layer including resistance patterns that vertically protrude from the active regions and are connected to each other in the first direction, and contact electrodes on the resistance layer.
    Type: Grant
    Filed: May 21, 2015
    Date of Patent: December 13, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Myung Gil Kang, Dongwon Kim, Ilryong Kim, Changwoo Oh, Keun Hwi Cho, Toshinori Fukai
  • Publication number: 20160322304
    Abstract: A semiconductor device includes a gate structure extending in a second direction on a substrate, a source/drain layer disposed on a portion of the substrate adjacent the gate structure in a first direction crossing the second direction, a first conductive contact plug on the gate structure, and a second contact plug structure disposed on the source/drain layer. The second contact plug structure includes a second conductive contact plug and an insulation pattern, and the second conductive contact plug and the insulation pattern are disposed in the second direction and contact each other. The first conductive contact plug and the insulation pattern are adjacent to each other in the first direction. The first and second conductive contact plugs are spaced apart from each other.
    Type: Application
    Filed: January 20, 2016
    Publication date: November 3, 2016
    Inventors: Yoon-Hae Kim, Hwa-Sung Rhee, Keun-Hwi Cho
  • Patent number: 9331199
    Abstract: Provided is a semiconductor device to which a pattern structure for performance improvement is applied.
    Type: Grant
    Filed: March 25, 2015
    Date of Patent: May 3, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Keun-Hwi Cho, Sung-Il Park, Byoung-Hak Hong, Toshinori Fukai, Mun-Hyeon Kim, Woong-Gi Kim, Sue-Hye Park, Dong-Won Kim, Dae-Won Ha
  • Publication number: 20160087026
    Abstract: Embodiments of the inventive concepts provide a resistor and a semiconductor device including the same. The resistor includes a substrate, a device isolation layer in the substrate which defines active regions arranged in a first direction a resistance layer including resistance patterns that vertically protrude from the active regions and are connected to each other in the first direction, and contact electrodes on the resistance layer.
    Type: Application
    Filed: May 21, 2015
    Publication date: March 24, 2016
    Inventors: Myung Gil Kang, Dongwon Kim, Ilryong Kim, Changwoo Oh, Keun Hwi Cho, Toshinori Fukai
  • Publication number: 20160043222
    Abstract: Provided is a semiconductor device to which a pattern structure for performance improvement is applied.
    Type: Application
    Filed: March 25, 2015
    Publication date: February 11, 2016
    Inventors: Keun-Hwi Cho, Sung-II Park, Byoung-Hak Hong, Toshinori Fukai, Mun-Hyeon Kim, Woong-Gi Kim, Sue-Hye Park, Dong-Won Kim, Dae-Won Ha
  • Publication number: 20150325683
    Abstract: In a method of manufacturing a semiconductor device, a plasma annealing and supplying a threshold voltage control gas onto a portion of a substrate is performed to form a fixed charge region including a fixed charge at a surface of the substrate. A MOS transistor is formed on the substrate including the fixed charge region. By the above processes, the threshold voltage of the MOS transistor may be easily controlled.
    Type: Application
    Filed: February 3, 2015
    Publication date: November 12, 2015
    Inventors: Keun-Hwi Cho, Dong-Won Kim, Yoshinao Harada, Myung-Gil Kang, Jae-Young Park
  • Patent number: 8391057
    Abstract: A memory device includes a memory cell that includes a storage node, a first electrode, and a second electrode, the storage node stores an electrical charge, and the first electrode moves to connect to the storage node when the second electrode is energized.
    Type: Grant
    Filed: July 31, 2009
    Date of Patent: March 5, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Min-Sang Kim, Ji-Myoung Lee, Hyun-Jun Bae, Dong-Won Kim, Jun Seo, Yong-Hyun Kwon, Weon-Wi Jang, Keun-Hwi Cho
  • Patent number: 8270211
    Abstract: A memory device includes a storage node, a first electrode, and a second electrode formed in a memory cell, the storage node stores electrical charges, the first electrode comprising a first portion electrically connected to a second portion, the first portion moves to connect to the storage node when the second electrode is energized.
    Type: Grant
    Filed: April 8, 2011
    Date of Patent: September 18, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Min-Sang Kim, Ji-Myoung Lee, Hyun-Jun Bae, Dong-Won Kim, Jun Seo, Weonwi Jang, Keun-Hwi Cho
  • Publication number: 20110182111
    Abstract: A memory device includes a storage node, a first electrode, and a second electrode formed in a memory cell, the storage node stores electrical charges, the first electrode comprising a first portion electrically connected to a second portion, the first portion moves to connect to the storage node when the second electrode is energized.
    Type: Application
    Filed: April 8, 2011
    Publication date: July 28, 2011
    Inventors: Min-Sang Kim, Ji-Myoung Lee, Hyun-Jun Bae, Dong-Won Kim, Jun Seo, Weonwi Jang, Keun-Hwi Cho
  • Patent number: 7939436
    Abstract: A method of fabricating a semiconductor device forms a micro-sized gate, and mitigates short channel effects. The method includes a pull-back process to form the gate on a substrate. The method also includes forming inner and outer spacers on the gate that are asymmetric to one another with respect to the gate, and using the spacers in forming junction regions in the substrate on opposite sides of the gate. In particular, the inner and outer spacers are formed on opposite sides of the gate so as to have different thicknesses at the bottom of the gate. The inner and outer junction regions are formed by doping the substrate before and after the spacers are formed. Thus, the inner and outer junction regions have extension regions under the inner and outer spacers, respectively, and the extension regions have different lengths.
    Type: Grant
    Filed: January 14, 2009
    Date of Patent: May 10, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sung-Min Kim, Min-Sang Kim, Keun-Hwi Cho, Ji-Myoung Lee
  • Patent number: 7929341
    Abstract: A memory device includes a storage node, a first electrode, and a second electrode formed in a memory cell, the storage node stores electrical charges, the first electrode comprising a first portion electrically connected to a second portion, the first portion moves to connect to the storage node when the second electrode is energized.
    Type: Grant
    Filed: February 25, 2009
    Date of Patent: April 19, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Min-Sang Kim, Ji-Myoung Lee, Hyun-Jun Bae, Dong-Won Kim, Jun Seo, Weonwi Jang, Keun-Hwi Cho
  • Publication number: 20110006353
    Abstract: A DRAM device includes a plug on a substrate, a conductive plate electrically connected to the plug and overlapping the substrate, at least one capacitor on the substrate and spaced apart from the plug, and at least one word line under the conductive plate and spaced apart from the conductive plate. The DRAM device further includes at least one first conductive pad under the conductive plate, the at least one first conductive pad being spaced apart from the conductive plate in a first state and being electrically connected to the conductive plate in a second state, the at least one first conductive pad being disposed between the plug and an adjacent word line of the at least one word line, and the at least one first conductive pad being electrically connected to a respective capacitor of the at least one capacitor.
    Type: Application
    Filed: July 6, 2010
    Publication date: January 13, 2011
    Inventors: Min-Sang KIM, Dong-Won Kim, Jun Seo, Keun-Hwi Cho, Hyun-Jun Bae, Ji-Myoung Lee
  • Patent number: 7868401
    Abstract: Provided are a multibit electro-mechanical memory device and a method of manufacturing the same. The device may include at least one bit line in a first direction on a substrate; at least one gate line and at least one lower word line in parallel by a given interval and in a second direction intersecting the first direction on the at least one bit line; at least one contact pad adjacent to the at least one gate line on the at least one bit line; and at least one cantilever electrode coupled to the at least one contact pad, configured to float with a void above and beneath the at least one cantilever electrode and configured to curve in a third direction vertical to the first and second directions.
    Type: Grant
    Filed: November 6, 2008
    Date of Patent: January 11, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ji-Myoung Lee, Min-Sang Kim, Sung-Min Kim, Keun-Hwi Cho
  • Publication number: 20100135064
    Abstract: A memory device includes a memory cell that includes a storage node, a first electrode, and a second electrode, the storage node stores an electrical charge, and the first electrode moves to connect to the storage node when the second electrode is energized.
    Type: Application
    Filed: July 31, 2009
    Publication date: June 3, 2010
    Inventors: Min-Sang Kim, Ji-Myoung Lee, Hyun-Jun Bae, Dong-Won Kim, Jun Seo, Yong-Hyun Kwon, Weon-Wi Jang, Keun-Hwi Cho
  • Publication number: 20090237980
    Abstract: A memory device includes a storage node, a first electrode, and a second electrode formed in a memory cell, the storage node stores electrical charges, the first electrode comprising a first portion electrically connected to a second portion, the first portion moves to connect to the storage node when the second electrode is energized.
    Type: Application
    Filed: February 25, 2009
    Publication date: September 24, 2009
    Inventors: Min-Sang KIM, Ji-Myoung LEE, Hyun-Jun BAE, Dong-Won KIM, Jun SEO, Weonwi JANG, Keun-Hwi CHO
  • Publication number: 20090197383
    Abstract: A method of fabricating a semiconductor device forms a micro-sized gate, and mitigates short channel effects. The method includes a pull-back process to form the gate on a substrate. The method also includes forming inner and outer spacers on the gate that are asymmetric to one another with respect to the gate, and using the spacers in forming junction regions in the substrate on opposite sides of the gate. In particular, the inner and outer spacers are formed on opposite sides of the gate so as to have different thicknesses at the bottom of the gate. The inner and outer junction regions are formed by doping the substrate before and after the spacers are formed. Thus, the inner and outer junction regions have extension regions under the inner and outer spacers, respectively, and the extension regions have different lengths.
    Type: Application
    Filed: January 14, 2009
    Publication date: August 6, 2009
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sung-Min Kim, Min-Sang Kim, Keun-Hwi Cho, Ji-Myoung Lee