Patents by Inventor Yun Taek Hwang

Yun Taek 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).

  • Patent number: 8847188
    Abstract: A switching device includes a first electrode, a bipolar tunneling layer, and a second electrode. The bipolar tunneling layer is formed on the first electrode and includes a plurality of dielectric layers having different dielectric constants. The second electrode is formed on the bipolar tunneling layer.
    Type: Grant
    Filed: August 15, 2013
    Date of Patent: September 30, 2014
    Assignee: SK Hynix Inc.
    Inventors: Yun-Taek Hwang, Jae-Yun Yi
  • Patent number: 8697563
    Abstract: A method for manufacturing a semiconductor device includes forming a transistor having a stacked structure in a peripheral circuit region to increase net die and forming a metal silicide layer over a source/drain region of a transistor formed over an upper layer to reduce a contact resistance. The semiconductor device may include: a second active region including a silicon layer connected to a first active region of a semiconductor substrate; a gate formed over the second active region; a spacer formed on sidewalls of the gate; a source/drain region form at both sides of the spacer; and a metal silicide layer formed over the gate and the source/drain region.
    Type: Grant
    Filed: October 21, 2011
    Date of Patent: April 15, 2014
    Assignee: SK hynix Inc.
    Inventor: Yun Taek Hwang
  • Publication number: 20130328006
    Abstract: A switching device includes a first electrode, a bipolar tunneling layer, and a second electrode. The bipolar tunneling layer is formed on the first electrode and includes a plurality of dielectric layers having different dielectric constants. The second electrode is formed on the bipolar tunneling layer.
    Type: Application
    Filed: August 15, 2013
    Publication date: December 12, 2013
    Applicant: SK hynix Inc.
    Inventors: Yun-Taek HWANG, Jae-Yun YI
  • Patent number: 8513635
    Abstract: A switching device includes a first electrode, a bipolar tunneling layer, and a second electrode. The bipolar tunneling layer is formed on the first electrode and includes a plurality of dielectric layers having different dielectric constants. The second electrode is formed on the bipolar tunneling layer.
    Type: Grant
    Filed: December 30, 2010
    Date of Patent: August 20, 2013
    Assignee: Hynix Semiconductor Inc.
    Inventors: Yun-Taek Hwang, Jae-Yun Yi
  • Publication number: 20130026435
    Abstract: A switching device that provides bipolar current paths and a resistance change memory device using the switching device. The switching device includes a first electrode, a second electrode, and an amorphous carbon layer interposed between the first electrode and the second electrode and configured to control a bipolar current to flow therethrough in response to a voltage applied between the first electrode and the second electrode.
    Type: Application
    Filed: December 21, 2011
    Publication date: January 31, 2013
    Inventors: Jae-Yun Yi, Sung-Woong Chung, Yun-Taek Hwang, Hyun-Sang Hwang, Ju-Bong Park
  • Patent number: 8345463
    Abstract: A resistive memory device includes: a bottom electrode formed over a substrate; and an insulation layer having a hole structure formed over the substrate structure. Herein, the hole structure exposes the bottom electrode, has sidewalls of positive slope, and has a bottom width equal to or smaller than a width of the bottom electrode; a resistive layer formed over the hole structure; and an upper electrode formed over the resistive layer.
    Type: Grant
    Filed: March 26, 2009
    Date of Patent: January 1, 2013
    Assignee: Hynix Semiconductor Inc.
    Inventors: Yu-Jin Lee, Yun-Taek Hwang
  • Patent number: 8324070
    Abstract: A semiconductor device includes a NMOS transistor of a peripheral circuit region. The NMOS transistor is formed over a relaxed silicon germanium layer and a silicon layer to have a tensile strain structure, thereby increasing electron mobility of a channel region in operation of the device. The semiconductor device may include a second active region including a first silicon layer connected to a first active region of a semiconductor substrate, a second silicon layer and a relaxed silicon germanium layer formed over the first silicon layer expected to be a NMOS region, and a NMOS gate formed over the second silicon layer.
    Type: Grant
    Filed: June 5, 2008
    Date of Patent: December 4, 2012
    Assignee: Hynix Semiconductor Inc.
    Inventor: Yun Taek Hwang
  • Patent number: 8274102
    Abstract: A semiconductor device includes a PMOS transistor of a peripheral circuit region. The PMOS transistor is formed over a silicon germanium layer to have a compressive strain structure, thereby increasing hole mobility of a channel region in operation of the device. The semiconductor device may include a second active region including a silicon layer connected to a first active region of a semiconductor substrate, a silicon germanium layer formed over the silicon layer expected to be a PMOS region, and a PMOS gate formed over the silicon germanium layer.
    Type: Grant
    Filed: September 29, 2010
    Date of Patent: September 25, 2012
    Assignee: Hynix Semiconductor Inc.
    Inventor: Yun Taek Hwang
  • Patent number: 8148708
    Abstract: A resistive memory device includes a first conductive line on a substrate, a vertical selection diode comprising a nanowire or a nanotube and being arranged over the first conductive line, a resistive element including a resistive layer arranged over the vertical selection diode; and a second conductive line arranged over the resistive element.
    Type: Grant
    Filed: December 26, 2008
    Date of Patent: April 3, 2012
    Assignee: Hynix Semiconductor Inc.
    Inventors: Yun-Taek Hwang, Yu-Jin Lee
  • Publication number: 20120068137
    Abstract: A switching device includes a first electrode, a bipolar tunneling layer, and a second electrode. The bipolar tunneling layer is formed on the first electrode and includes a plurality of dielectric layers having different dielectric constants. The second electrode is formed on the bipolar tunneling layer.
    Type: Application
    Filed: December 30, 2010
    Publication date: March 22, 2012
    Inventors: Yun-Taek Hwang, Jae-Yun Yi
  • Publication number: 20120040506
    Abstract: A method for manufacturing a semiconductor device includes forming a transistor having a stacked structure in a peripheral circuit region to increase net die and forming a metal silicide layer over a source/drain region of a transistor formed over an upper layer to reduce a contact resistance. The semiconductor device may include: a second active region including a silicon layer connected to a first active region of a semiconductor substrate; a gate formed over the second active region; a spacer formed on sidewalls of the gate; a source/drain region form at both sides of the spacer; and a metal silicide layer formed over the gate and the source/drain region.
    Type: Application
    Filed: October 21, 2011
    Publication date: February 16, 2012
    Applicant: HYNIX SEMICONDUCTOR INC.
    Inventor: Yun Taek Hwang
  • Publication number: 20110012207
    Abstract: A semiconductor device includes a PMOS transistor of a peripheral circuit region. The PMOS transistor is formed over a silicon germanium layer to have a compressive strain structure, thereby increasing hole mobility of a channel region in operation of the device. The semiconductor device may include a second active region including a silicon layer connected to a first active region of a semiconductor substrate, a silicon germanium layer formed over the silicon layer expected to be a PMOS region, and a PMOS gate formed over the silicon germanium layer.
    Type: Application
    Filed: September 29, 2010
    Publication date: January 20, 2011
    Applicant: HYNIX SEMICONDUCTOR INC.
    Inventor: Yun Taek HWANG
  • Patent number: 7824971
    Abstract: A semiconductor device includes a PMOS transistor of a peripheral circuit region. The PMOS transistor is formed over a silicon germanium layer to have a compressive strain structure, thereby increasing hole mobility of a channel region in operation of the device. The semiconductor device may include a second active region including a silicon layer connected to a first active region of a semiconductor substrate, a silicon germanium layer formed over the silicon layer expected to be a PMOS region, and a PMOS gate formed over the silicon germanium layer.
    Type: Grant
    Filed: June 6, 2008
    Date of Patent: November 2, 2010
    Assignee: Hynix Semiconductor Inc.
    Inventor: Yun Taek Hwang
  • Patent number: 7800197
    Abstract: The present invention relates to a semiconductor device and a method of manufacture thereof, being capable of improving the high integration by increasing a cell region while securing the reliability of device and the process margin through forming a cell region and a core region with the stacking structure.
    Type: Grant
    Filed: June 5, 2008
    Date of Patent: September 21, 2010
    Assignee: Hynix Semiconductor Inc.
    Inventors: Yun Taek Hwang, Kwang Yong Lim
  • Publication number: 20100163819
    Abstract: A resistive memory device and a fabrication method thereof are provided. The fabrication method includes: providing a substrate; forming a lower electrode over the substrate; forming a variable resistive material layer over the lower electrode; forming an ion implantation region to a predetermined depth from a surface of the variable resistive material layer by implanting metal ions or oxygen ions to the surface of the variable resistive material layer; and forming an upper electrode over the variable resistive material layer including the ion implantation region.
    Type: Application
    Filed: June 2, 2009
    Publication date: July 1, 2010
    Inventor: Yun-Taek Hwang
  • Publication number: 20100117041
    Abstract: A resistive memory device includes a first conductive line on a substrate, a vertical selection diode comprising a nanowire or a nanotube and being arranged over the first conductive line, a resistive element including a resistive layer arranged over the vertical selection diode; and a second conductive line arranged over the resistive element.
    Type: Application
    Filed: December 26, 2008
    Publication date: May 13, 2010
    Applicant: HYNIX SEMICONDUCTOR INC.
    Inventors: Yun-Taek HWANG, Yu-Jin LEE
  • Publication number: 20090302301
    Abstract: A resistance RAM (ReRAM) device and method of manufacturing the same are presented. The ReRAM exhibits an improved set resistance distribution and an improved reset resistance distribution. The ReRAM device includes a lower electrode contact that has at least one carbon nano-tube; and a binary oxide layer formed over the lower electrode contact. The binary oxide layer is for storing information in accordance to two different resistance states of the binary oxide layer.
    Type: Application
    Filed: August 12, 2008
    Publication date: December 10, 2009
    Inventor: Yun Taek HWANG
  • Publication number: 20090218628
    Abstract: A semiconductor device includes a NMOS transistor of a peripheral circuit region. The NMOS transistor is formed over a relaxed silicon germanium layer and a silicon layer to have a tensile strain structure, thereby increasing electron mobility of a channel region in operation of the device. The semiconductor device may include a second active region including a first silicon layer connected to a first active region of a semiconductor substrate, a second silicon layer and a relaxed silicon germanium layer formed over the first silicon layer expected to be a NMOS region, and a NMOS gate formed over the second silicon layer.
    Type: Application
    Filed: June 5, 2008
    Publication date: September 3, 2009
    Applicant: HYNIX SEMICONDUCTOR INC.
    Inventor: Yun Taek Hwang
  • Publication number: 20090218635
    Abstract: A method for manufacturing a semiconductor device includes forming a transistor having a stacked structure in a peripheral circuit region to increase net die and forming a metal silicide layer over a source/drain region of a transistor formed over an upper layer to reduce a contact resistance.
    Type: Application
    Filed: June 9, 2008
    Publication date: September 3, 2009
    Applicant: HYNIX SEMICONDUCTOR INC.
    Inventor: Yun Taek Hwang
  • Publication number: 20090218604
    Abstract: A semiconductor device includes a PMOS transistor of a peripheral circuit region. The PMOS transistor is formed over a silicon germanium layer to have a compressive strain structure, thereby increasing hole mobility of a channel region in operation of the device. The semiconductor device may include a second active region including a silicon layer connected to a first active region of a semiconductor substrate, a silicon germanium layer formed over the silicon layer expected to be a PMOS region, and a PMOS gate formed over the silicon germanium layer.
    Type: Application
    Filed: June 6, 2008
    Publication date: September 3, 2009
    Applicant: HYNIX SEMICONDUCTOR INC.
    Inventor: Yun Taek Hwang