Patents by Inventor Kee-Jeung Lee

Kee-Jeung Lee 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: 9130153
    Abstract: A semiconductor device includes a first conductive layer, a second conductive layer spaced from the first conductive layer, a variable resistance layer interposed between the first and second conductive layers, and an impurity-doped layer provided over a side surface of the variable resistance layer. The variable resistance layer has a smaller width than the first and the second conductive layers.
    Type: Grant
    Filed: July 19, 2013
    Date of Patent: September 8, 2015
    Assignee: SK HYNIX INC.
    Inventors: Beom-Yong Kim, Kee-Jeung Lee, Wan-Gee Kim, Hyo-June Kim
  • Patent number: 9058984
    Abstract: A semiconductor device includes a dielectric layer in which zirconium, hafnium, and a IV group element are mixed. A method for fabricating a capacitor includes forming a bottom electrode, forming the dielectric layer and forming a top electrode over the dielectric layer.
    Type: Grant
    Filed: May 2, 2014
    Date of Patent: June 16, 2015
    Assignee: SK Hynix Inc.
    Inventors: Kee-Jeung Lee, Kwon Hong, Kyung-Woong Park, Ji-Hoon Ahn
  • Publication number: 20150162529
    Abstract: An electronic device includes a switch element. The switch element includes a first electrode including a first metal nitride which is conductive, a second electrode, a switching layer interposed between the first electrode and the second electrode, and a first barrier layer which is interposed between the first electrode and the switching layer and includes a second metal nitride which is insulative, wherein a metal in the first metal nitride is the same as a metal in the second metal nitride, and a metal-to-nitrogen bonding ratio of the first metal nitride is different from a metal-to-nitrogen bonding ratio of the second metal nitride.
    Type: Application
    Filed: May 8, 2014
    Publication date: June 11, 2015
    Applicant: SK hynix Inc.
    Inventors: Kee-Jeung LEE, Wan-Gee KIM
  • Publication number: 20150070968
    Abstract: An electronic device includes a semiconductor memory. The semiconductor memory includes a plurality of first lines extending in a first direction, a plurality of second lines extending in a second direction crossing the first direction, a resistance variable layer interposed between the first lines and the second lines, a tunnel barrier layer interposed between the resistance variable layer and the first lines, and an intermediate electrode layer interposed between the resistance variable layer and the tunnel barrier layer. The tunnel barrier layer and the intermediate electrode layer overlap with at least two neighboring intersection regions of the first lines and the second lines.
    Type: Application
    Filed: January 29, 2014
    Publication date: March 12, 2015
    Applicant: SK Hynix Inc.
    Inventors: Wan-Gee KIM, Kee-Jeung LEE, Hyung-Dong LEE
  • Patent number: 8962437
    Abstract: A method for fabricating a capacitor includes: forming a first silicon layer over a semiconductor substrate, where the first silicon layer is doped with a dopant; forming an undoped second silicon layer over the first silicon layer; forming an opening by etching the second silicon layer and the first silicon layer; forming a storage node in the opening; and removing the first silicon layer and the second silicon layer.
    Type: Grant
    Filed: June 12, 2012
    Date of Patent: February 24, 2015
    Assignee: SK Hynix Inc.
    Inventors: Beom-Yong Kim, Kee-Jeung Lee, Yun-Hyuck Ji, Seung-Mi Lee, Jae-Hyoung Koo, Kwan-Woo Do, Kyung-Woong Park, Ji-Hoon Ahn, Woo-Young Park
  • Patent number: 8921214
    Abstract: A method for fabricating a variable resistance memory device includes forming an oxygen-deficient first metal oxide layer over a first electrode, forming an oxygen-rich second metal oxide layer over the first metal oxide layer, treating the first and second metal oxide layers with hydrogen-containing plasma, forming an oxygen-rich third metal oxide layer, and forming a second electrode over the third metal oxide layer.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: December 30, 2014
    Assignee: SK Hynix Inc.
    Inventors: Kee-Jeung Lee, Beom-Yong Kim, Wan-Gee Kim, Woo-Young Park
  • Publication number: 20140301127
    Abstract: A semiconductor device includes a first conductive layer, a second conductive layer spaced from the first conductive layer, a variable resistance layer interposed between the first and second conductive layers, and an impurity-doped layer provided over a side surface of the variable resistance layer. The variable resistance layer has a smaller width than the first and the second conductive layers.
    Type: Application
    Filed: July 19, 2013
    Publication date: October 9, 2014
    Applicant: SK HYNIX INC.
    Inventors: Beom-Yong KIM, Kee-Jeung LEE, Wan-Gee KIM, Hyo-June KIM
  • Publication number: 20140242772
    Abstract: A semiconductor device includes a dielectric layer in which zirconium, hafnium, and a IV group element are mixed. A method for fabricating a capacitor includes forming a bottom electrode, forming the dielectric layer and forming a top electrode over the dielectric layer.
    Type: Application
    Filed: May 2, 2014
    Publication date: August 28, 2014
    Applicant: SK hynix Inc.
    Inventors: Kee-Jeung LEE, Kwon HONG, Kyung-Woong PARK, Ji-Hoon AHN
  • Publication number: 20140170830
    Abstract: A method for fabricating a variable resistance memory device includes forming an oxygen-deficient first metal oxide layer over a first electrode, forming an oxygen-rich second metal oxide layer over the first metal oxide layer, treating the first and second metal oxide layers with hydrogen-containing plasma, forming an oxygen-rich third metal oxide layer, and forming a second electrode over the third metal oxide layer.
    Type: Application
    Filed: March 15, 2013
    Publication date: June 19, 2014
    Applicant: SK HYNIX INC.
    Inventors: Kee-Jeung LEE, Beom-Yong KIM, Wan-Gee KIM, Woo-Young PARK
  • Patent number: 8716842
    Abstract: A semiconductor device includes a dielectric layer in which zirconium, hafnium, and a IV group element are mixed. A method for fabricating a capacitor includes forming a bottom electrode, forming the dielectric layer and forming a top electrode over the dielectric layer.
    Type: Grant
    Filed: September 13, 2011
    Date of Patent: May 6, 2014
    Assignee: SK Hynix Inc.
    Inventors: Kee-Jeung Lee, Kwon Hong, Kyung-Woong Park, Ji-Hoon Ahn
  • Publication number: 20140103283
    Abstract: Disclosed herein are a variable resistance memory device and a method of fabricating the same. The variable resistance memory device may include a first electrode; a second electrode; and a variable resistance layer configured to be interposed between the first electrode and the second electrode, wherein the variable resistance layer includes a Si-added metal oxide.
    Type: Application
    Filed: March 18, 2013
    Publication date: April 17, 2014
    Applicant: SK HYNIX INC.
    Inventors: Woo-Young PARK, Kwon HONG, Kee-Jeung LEE, Beom-Yong KIM
  • Publication number: 20140097397
    Abstract: A resistive memory device includes a first electrode layer, a second electrode layer, and a first variable resistive layer and a second variable resistive layer stacked at least once between the first electrode layer and the second electrode layer. The first variable resistive material layer may include a metal nitride layer having a resistivity higher than that of the first electrode layer or the second electrode layer and less than or equal to that of an insulating material.
    Type: Application
    Filed: March 15, 2013
    Publication date: April 10, 2014
    Applicant: SK HYNIX INC.
    Inventors: Woo Young PARK, Kee Jeung LEE, Beom Yong KIM
  • Patent number: 8654579
    Abstract: A non-volatile memory device includes a plurality of memory cells stacked along a channel protruded from a substrate, a first select transistor connected to one end of the plurality of memory cells, a first interlayer dielectric layer for being coupled between a source line and the first select transistor, and a second interlayer dielectric layer disposed between the first select transistor and the one end of the plurality of memory cells, and configured to include a first recess region.
    Type: Grant
    Filed: November 17, 2011
    Date of Patent: February 18, 2014
    Assignee: Hynix Semiconductor Inc.
    Inventors: Beom Yong Kim, Kwon Hong, Kee Jeung Lee, Ki Hong Lee
  • Publication number: 20130277636
    Abstract: A method for fabricating a variable resistance memory device includes forming a first electrode, forming a first metal oxide layer which satisfies chemical stoichiometry over the first electrode, forming a second metal oxide layer which is lower in oxygen content than the first metal oxide layer by reducing a part of the first metal oxide layer, and forming a second electrode over the second metal oxide layer.
    Type: Application
    Filed: August 28, 2012
    Publication date: October 24, 2013
    Inventors: Kee-Jeung Lee, Woo-Young Park
  • Publication number: 20130244394
    Abstract: A method for fabricating a capacitor includes: forming a first silicon layer over a semiconductor substrate, where the first silicon layer is doped with a dopant; forming an undoped second silicon layer over the first silicon layer; forming an opening by etching the second silicon layer and the first silicon layer; forming a storage node in the opening; and removing the first silicon layer and the second silicon layer.
    Type: Application
    Filed: June 12, 2012
    Publication date: September 19, 2013
    Inventors: Beom-Yong KIM, Kee-Jeung LEE, Yun-Hyuck JI, Seung-Mi LEE, Jae-Hyoung KOO, Kwan-Woo DO, Kyung-Woong PARK, Ji-Hoon AHN, Woo-Young PARK
  • Publication number: 20130171797
    Abstract: A method of forming a multi-component dielectric layer on the surface of a substrate by atomic layer deposition includes injecting a cocktail source of a plurality of sources at least having a cyclopentadienyl ligand, wherein the cocktail source is adsorbed on a surface of a substrate by injecting the cocktail source, performing a first purge process to remove a non-adsorbed portion of the cocktail source, injecting a reactant to react with the adsorbed cocktail source, wherein a multi-component layer is formed by the reaction between the reactant and the absorbed cocktail source, and performing a second purge process to remove reaction byproducts and an unreacted portion of the reactant.
    Type: Application
    Filed: May 3, 2012
    Publication date: July 4, 2013
    Inventors: Kyung-Woong PARK, Kee-Jeung LEE, Jae-Hyoung KOO, Kwan-Woo DO, Ji-Hoon AHN, Woo-Young PARK
  • Patent number: 8441100
    Abstract: A capacitor includes a pillar-type storage node, a supporter disposed entirely within an inner empty crevice of the storage node, a conductive capping layer over the supporter and contacting the storage node so as to seal an entrance to the inner empty crevice, a dielectric layer over the storage node, and a plate node over the dielectric layer.
    Type: Grant
    Filed: March 22, 2011
    Date of Patent: May 14, 2013
    Assignee: Hynix Semiconductor Inc.
    Inventors: Kee-Jeung Lee, Han-Sang Song, Deok-Sin Kil, Young-Dae Kim, Jin-Hyock Kim, Kwan-Woo Do, Kyung-Woong Park
  • Publication number: 20130105901
    Abstract: A semiconductor device includes a gate stacked structure including a gate dielectric layer over a semiconductor substrate, a metal layer formed over the gate dielectric layer, and a capping layer formed over the metal layer, where the capping layer includes a chemical element with a higher concentration at an interface between the capping layer and the metal layer than another region of the capping layer and the chemical element is operable to control an effective work function (eWF) of the gate stacked structure.
    Type: Application
    Filed: December 29, 2011
    Publication date: May 2, 2013
    Inventors: Woo-Young PARK, Kee-Jeung Lee, Yun-Hyuck Ji, Seung-Mi Lee
  • Patent number: 8372746
    Abstract: An electrode of a semiconductor device includes a TiCN layer and a TiN layer. A method for fabricating an electrode of a semiconductor device includes preparing a substrate, forming a TiCN layer, and forming a TiN layer.
    Type: Grant
    Filed: June 28, 2010
    Date of Patent: February 12, 2013
    Assignee: Hynix Semiconductor Inc.
    Inventors: Kwan-Woo Do, Kee-Jeung Lee, Kyung-Woong Park, Jeong-Yeop Lee
  • Publication number: 20130022744
    Abstract: A noble metal layer is formed using ozone (O3) as a reaction gas.
    Type: Application
    Filed: September 12, 2012
    Publication date: January 24, 2013
    Applicant: HYNIX SEMICONDUCTOR INC.
    Inventors: Deok-Sin KIL, Kee-Jeung LEE, Young-Dae KIM, Jin-Hyock KIM, Kwan-Woo DO, Kyung-Woong PARK, Jeong-Yeop LEE, Ja-Yong KIM