Patents by Inventor Myung Kwan Ryu

Myung Kwan Ryu 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: 20130306966
    Abstract: Transistors having sulfur-doped zinc oxynitride channel layers, and methods of manufacturing the same, include a ZnON channel layer with sulfur content ratio with respect to a zinc content of from about 0.1 at % to about 1.2 at %, a source electrode and a drain electrode respectively formed on a first region and a second region of the channel layer, a gate electrode corresponding to the channel layer, and a gate insulation layer between the channel layer and the gate electrode.
    Type: Application
    Filed: December 20, 2012
    Publication date: November 21, 2013
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Jong-baek SEON, Tae-sang KIM, Hyun-suk KIM, Myung-kwan RYU, Joon-seok PARK, Seok-jun SEO, Kyoung-seok SON, Sang-yoon LEE
  • Patent number: 8586979
    Abstract: An oxide semiconductor thin film transistor (TFT) and a method of manufacturing the oxide semiconductor TFT. The oxide semiconductor TFT includes a first gate insulating layer arranged between an oxide semiconductor channel layer and a first gate and a second gate insulating layer arranged between the channel layer and a second gate. The first and second gate insulating layers are made out of different materials and have different thicknesses. Preferably, the second gate insulating layer is silicon oxide and is thinner than the first gate insulating layer which is preferably silicon nitride. Oxide semiconductor refers to an oxide material such as Zinc Oxide, Tin Oxide, Ga—In—Zn Oxide, In—Zn Oxide, In—Sn Oxide, and one of Zinc Oxide, Tin Oxide, Ga—In—Zn Oxide, In—Zn Oxide and In—Sn Oxide.
    Type: Grant
    Filed: February 2, 2009
    Date of Patent: November 19, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kyoung-Seok Son, Tae-Sang Kim, Jang-Yeon Kwon, Ji-Sim Jung, Sang-Yoon Lee, Myung-Kwan Ryu, Kyung-Bae Park, Byung-Wook Yoo
  • Publication number: 20130248851
    Abstract: Oxide thin film, electronic devices including the oxide thin film and methods of manufacturing the oxide thin film, the methods including (A) applying an oxide precursor solution comprising at least one of zinc (Zn), indium (In) and tin (Sn) on a substrate, (B) heat-treating the oxide precursor solution to form an oxide layer, and (C) repeating the steps (A) and (B) to form a plurality of the oxide layers.
    Type: Application
    Filed: February 27, 2013
    Publication date: September 26, 2013
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jong-Baek SEON, Myung-kwan RYU, Kyung-Bae PARK, Sang-yoon LEE, Bon-Won KOO
  • Patent number: 8529802
    Abstract: Disclosed is a solution composition for forming a thin film transistor including a zinc-containing compound, an indium-containing compound, and a compound including at least one metal or metalloid selected from the group consisting of hafnium (Hf), magnesium (Mg), tantalum (Ta), cerium (Ce), lanthanum (La), silicon (Si), germanium (Ge), vanadium (V), niobium (Nb), and yttrium (Y). A method of forming a thin film by using the solution composition, and a method of manufacturing thin film transistor including the thin film are also disclosed.
    Type: Grant
    Filed: February 12, 2010
    Date of Patent: September 10, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jong-Baek Seon, Sang-Yoon Lee, Jeong-il Park, Myung-Kwan Ryu, Kyung-Bae Park
  • Publication number: 20130221343
    Abstract: A transistor may include a hole blocking layer between a channel layer including oxynitride and an electrode electrically connected to the channel layer. The hole blocking layer may be disposed in a region between the channel layer and at least one of a source electrode and a drain electrode. The channel layer may include, for example, zinc oxynitride (ZnON). A valence band maximum energy level of the hole blocking layer may be lower than a valence band maximum energy level of the channel layer.
    Type: Application
    Filed: August 17, 2012
    Publication date: August 29, 2013
    Applicants: SAMSUNG DISPLAY CO., LTD., SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kyoung-seok SON, Myung-kwan RYU, Tae-sang KIM, Hyun-suk KIM, Joon-seok PARK, Jong-baek SEON, Sang-yoon LEE
  • Publication number: 20130183609
    Abstract: A thin film patterning method may include forming a thin film by coating a precursor solution containing a precursor of metal oxide onto a substrate, soft baking the thin film, exposing the thin film to light by using a photomask, developing the thin film, and hard baking the developed thin film. The precursor may include metal acetate, for example, a zinc acetate-based material, and the metal oxide thin film may include zinc oxide (ZnO).
    Type: Application
    Filed: August 17, 2012
    Publication date: July 18, 2013
    Applicants: SAMSUNG DISPLAY CO., LTD., SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jong-baek SEON, Myung-kwan RYU, Sang-yoon LEE
  • Patent number: 8476636
    Abstract: Provided may be a Poly-Si thin film transistor (TFT) and a method of manufacturing the same. The Poly-Si TFT may include a first Poly-Si layer on an active layer formed of Poly-Si and doped with a low concentration; and a second Poly-Si layer on the first Poly-Si layer and doped with the same concentration as the first Poly-Si layer or with a higher concentration than the first Poly-Si layer, wherein lightly doped drain (LDD) regions capable of reducing leakage current may be formed in inner end portions of the first Poly-Si layer.
    Type: Grant
    Filed: December 5, 2008
    Date of Patent: July 2, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Myung-kwan Ryu, Kyung-bae Park, Sang-yoon Lee, Jang-yeon Kwon, Byung-wook Yoo, Tae-sang Kim, Kyung-seok Son, Ji-sim Jung
  • Publication number: 20130140551
    Abstract: A transistor may include a channel layer formed of an oxide semiconductor. The oxide semiconductor may include GaZnON, and a proportion of Ga content to a total content of Ga and Zn of the channel layer is about 0.5 to about 4.5 at %.
    Type: Application
    Filed: July 17, 2012
    Publication date: June 6, 2013
    Applicants: SAMSUNG MOBILE DISPLAY CO., LTD, SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Joon-seok Park, Tae-sang Kim, Hyun-suk Kim, Myung-kwan Ryu, Jong-baek Seon, Kyoung-seok Son, Sang-yoon Lee, Seok-jun Seo
  • Patent number: 8395155
    Abstract: Thin film transistors (TFTs) and methods of manufacturing the same. A TFT may include a floating channel on a surface of a channel and spaced apart from a source and a drain, and an insulating layer formed on the floating channel and designed to determine a distance between the floating channel and the source or the drain.
    Type: Grant
    Filed: January 26, 2011
    Date of Patent: March 12, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Eok-su Kim, Sang-yoon Lee, Myung-kwan Ryu, Kyung-bae Park
  • Patent number: 8394668
    Abstract: Oxide thin film, electronic devices including the oxide thin film and methods of manufacturing the oxide thin film, the methods including (A) applying an oxide precursor solution comprising at least one of zinc (Zn), indium (In) and tin (Sn) on a substrate, (B) heat-treating the oxide precursor solution to form an oxide layer, and (C) repeating the steps (A) and (B) to form a plurality of the oxide layers.
    Type: Grant
    Filed: March 28, 2011
    Date of Patent: March 12, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jong-Baek Seon, Myung-Kwan Ryu, Kyung-Bae Park, Sang-Yoon Lee, Bon-Won Koo
  • Patent number: 8383467
    Abstract: A thin film transistor (TFT) and a method of manufacturing the same are provided, the TFT including a gate insulating layer on a gate. A channel may be formed on a portion of the gate insulating layer corresponding to the gate. A metal material may be formed on a surface of the channel. The metal material crystallizes the channel. A source and a drain may contact side surfaces of the channel.
    Type: Grant
    Filed: August 1, 2012
    Date of Patent: February 26, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Byung-wook Yoo, Sang-yoon Lee, Myung-kwan Ryu, Tae-sang Kim, Jang-yeon Kwon, Kyung-bae Park, Kyung-seok Son, Ji-sim Jung
  • Publication number: 20130043475
    Abstract: A transistor may include a light-blocking layer that blocks light incident on a channel layer. The light-blocking layer may include a carbon-based material. The carbon-based material may include graphene oxide, graphite oxide, graphene or carbon nanotube (CNT). The light-blocking layer may be between a gate and at least one of the channel layer, a source and a drain.
    Type: Application
    Filed: June 6, 2012
    Publication date: February 21, 2013
    Applicants: SAMSUNG MOBILE DISPLAY CO., LTD., SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyun-suk Kim, Sang-yoon Lee, Myung-kwan Ryu, Tae-sang Kim, Jong-baek Seon, Kyoung-seok Son, Won-mook Choi, Joon-seok Park, Mi-jeong Song
  • Publication number: 20130034708
    Abstract: A method of preparing a thin film includes coating a thin film-forming composition on a substrate, and heat-treating the coated thin film-forming composition under a pressure less than 760 Torr. The thin film includes a compact layer having a thickness in a range of greater than 50 ? to about 20,000 ? and a refractive index in a range of about 1.85 to about 2.0.
    Type: Application
    Filed: August 3, 2012
    Publication date: February 7, 2013
    Applicants: SAMSUNG DISPLAY CO., LTD., SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Myung-kwan Ryu, Jong-baek Seon, Sang-yoon Lee
  • Patent number: 8349647
    Abstract: A TFT includes a zinc oxide (ZnO)-based channel layer having a plurality of semiconductor layers. An uppermost of the plurality of semiconductor layers has a Zn concentration less than that of a lower semiconductor layer to suppress an oxygen vacancy due to plasma. The uppermost semiconductor layer of the channel layer also has a tin (Sn) oxide, a chloride, a fluoride, or the like, which has a relatively stable bonding energy against plasma. The uppermost semiconductor layer is relatively strong against plasma shock and less decomposed when being exposed to plasma, thereby suppressing an increase in carrier concentration.
    Type: Grant
    Filed: March 4, 2011
    Date of Patent: January 8, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Myung-kwan Ryu, Tae-sang Kim, Jang-yeon Kwon, Kyung-bae Park, Kyung-seok Son, Ji-sim Jung
  • Patent number: 8319300
    Abstract: A solution composition for forming an oxide thin film may include a first compound including zinc, a second compound including indium, and a third compound including magnesium or hafnium, and an electronic device may include an oxide semiconductor including zinc, indium, and magnesium. The zinc and hafnium may be included at an atomic ratio of about 1:0.01 to about 1:1.
    Type: Grant
    Filed: April 9, 2010
    Date of Patent: November 27, 2012
    Assignees: Samsung Electronics Co., Ltd., Industry-Academic Cooperation Foundation, Yonsei University
    Inventors: Jong-Baek Seon, Hyun-Jae Kim, Sang-Yoon Lee, Myung-Kwan Ryu, Hyun-Soo Shin, Kyung-Bae Park, Woong-Hee Jeong, Gun-hee Kim, Byung-Du Ahn
  • Publication number: 20120295407
    Abstract: A thin film transistor (TFT) and a method of manufacturing the same are provided, the TFT including a gate insulating layer on a gate. A channel may be formed on a portion of the gate insulating layer corresponding to the gate. A metal material may be formed on a surface of the channel. The metal material crystallizes the channel. A source and a drain may contact side surfaces of the channel.
    Type: Application
    Filed: August 1, 2012
    Publication date: November 22, 2012
    Inventors: Byung-wook YOO, Sang-yoon LEE, Myung-kwan RYU, Tae-sang KIM, Jang-yeon KWON, Kyung-bae PARK, Kyung-seok SON, Ji-sim JUNG
  • Patent number: 8294150
    Abstract: Provided may be a panel structure, a display device including the panel structure, and methods of manufacturing the panel structure and the display device. Via holes for connecting elements of the panel structure may be formed by performing one process. For example, via holes for connecting a transistor and a conductive layer spaced apart from the transistor may be formed by performing only one process.
    Type: Grant
    Filed: October 8, 2009
    Date of Patent: October 23, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kyung-bae Park, Myung-kwan Ryu, Kee-chan Park, Jong-baek Seon
  • Patent number: 8263978
    Abstract: A thin film transistor (TFT) and a method of manufacturing the same are provided, the TFT including a gate insulating layer on a gate. A channel may be formed on a portion of the gate insulating layer corresponding to the gate. A metal material may be formed on a surface of the channel. The metal material crystallizes the channel. A source and a drain may contact side surfaces of the channel.
    Type: Grant
    Filed: May 6, 2009
    Date of Patent: September 11, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Byung-wook Yoo, Sang-yoon Lee, Myung-kwan Ryu, Tae-sang Kim, Jang-yeon Kwon, Kyung-bae Park, Kyung-seok Son, Ji-sim Jung
  • Publication number: 20120168756
    Abstract: Transistors, methods of manufacturing the same, and electronic devices including the transistors. The transistor may include a light blocking member which surrounds at least a portion of the channel layer. The light blocking member may be designed to block light laterally incident from a side of the transistor toward the channel layer (that is, laterally incident light). The light blocking member may be disposed in a portion of a gate insulation layer outside the channel layer. The light blocking member may be connected to a source and a drain or may be connected to a gate. The light blocking member may be separated from the source, the drain and the gate. The light blocking member may completely surround the channel layer.
    Type: Application
    Filed: June 10, 2011
    Publication date: July 5, 2012
    Applicants: INHA-INDUSTRY PARTNERSHIP INSTITUTE, SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Myung-kwan RYU, Jae-kyeong JEONG, Sang-yoon LEE
  • Publication number: 20120168757
    Abstract: A transistor includes a channel layer disposed above a gate and including an oxide semiconductor. A source electrode contacts a first end portion of the channel layer, and a drain electrode contacts a second end portion of the channel layer. The channel layer further includes a fluorine-containing region formed in an upper portion of the channel layer between the source electrode and the drain electrode.
    Type: Application
    Filed: June 21, 2011
    Publication date: July 5, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kyung-bae Park, Myung-kwan Ryu, Kwang-hee Lee, Tae-sang Kim, Eok-su Kim, Kyoung-seok Son, Hyun-suk Kim, Wan-joo Maeng, Joon-seok Park