Patents by Inventor Yeonghun LEE

Yeonghun 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).

  • Publication number: 20160284389
    Abstract: A semiconductor memory device includes a memory cell array, and a voltage generator suitable for generating voltages supplied to the memory cell array. The memory cell array includes cell strings each including memory cells extending in a first direction and arranged in a second direction and a third direction; bit lines extending in the second direction and electrically coupled to the cell strings; and word lines extending in the third direction and electrically coupled to corresponding memory cells, wherein the word lines includes dummy word lines. A program voltage is supplied to a program word line that is electrically coupled to a memory cell to be programmed, and a level of a first dummy word line voltage supplied to a parallel dummy word line, which is disposed parallel to the program word line in the first direction is different from a level of a second dummy voltage supplied to a nonparallel dummy word line other than the parallel dummy word line.
    Type: Application
    Filed: October 27, 2015
    Publication date: September 29, 2016
    Inventor: Yeonghun LEE
  • Patent number: 9455009
    Abstract: Provided is a semiconductor device. The semiconductor device includes memory blocks including select transistors electrically coupled to local select lines and memory cells electrically coupled to local word lines, a first connection circuit configured to electrically couple the local select lines of a selected memory block and global select lines according to a block select signal, and formed in a first well region of a substrate, and a second connection circuit configured to electrically couple the local word lines of the selected memory block and global word lines according to the block selection signal, and formed in a second well region of the substrate.
    Type: Grant
    Filed: February 9, 2015
    Date of Patent: September 27, 2016
    Assignee: SK hynix Inc.
    Inventors: Yeonghun Lee, Dong Hwan Lee
  • Publication number: 20160217866
    Abstract: A semiconductor device, wherein the semiconductor device includes a high-voltage supply circuit suitable for supplying a high voltage; a discharge circuit suitable for discharging the high voltage; and an auxiliary-voltage supply circuit suitable for supplying a first auxiliary voltage, which varies according to an operation state of the high-voltage supply circuit, to a reference node of the discharge circuit.
    Type: Application
    Filed: April 1, 2016
    Publication date: July 28, 2016
    Inventor: Yeonghun LEE
  • Publication number: 20160204653
    Abstract: A semiconductor device, wherein the semiconductor device includes a high-voltage supply circuit suitable for supplying a high voltage; a discharge circuit suitable for discharging the high voltage; and an auxiliary-voltage supply circuit suitable for supplying a first auxiliary voltage, which varies according to an operation state of the high-voltage supply circuit, to a reference node of the discharge circuit.
    Type: Application
    Filed: March 18, 2016
    Publication date: July 14, 2016
    Inventor: Yeonghun LEE
  • Patent number: 9323231
    Abstract: A semiconductor device, wherein the semiconductor device includes a high-voltage supply circuit suitable for supplying a high voltage; a discharge circuit suitable for discharging the high voltage; and an auxiliary-voltage supply circuit suitable for supplying a first auxiliary voltage, which varies according to an operation state of the high-voltage supply circuit, to a reference node of the discharge circuit.
    Type: Grant
    Filed: August 22, 2014
    Date of Patent: April 26, 2016
    Assignee: SK Hynix Inc.
    Inventor: Yeonghun Lee
  • Patent number: 9299447
    Abstract: A semiconductor device includes a plurality of memory blocks, wherein each of the plurality of memory blocks includes a first select transistor electrically coupled to a common source line, a second select transistor electrically coupled to a bit line, and a plurality of memory cells electrically coupled between the first and second select transistors, and an operation circuit suitable for applying operation voltages for a program operation, a read operation, and an erase operation to a selected memory block selected from the plurality of memory blocks, and applying a first positive voltage to gates of the first select transistors in unselected memory blocks of the plurality of memory blocks when an erase voltage is applied to the common source line during the erase operation.
    Type: Grant
    Filed: September 18, 2014
    Date of Patent: March 29, 2016
    Assignee: SK Hynix Inc.
    Inventors: Yeonghun Lee, Hyun Heo, Min Gyu Koo, Dong Hwan Lee
  • Publication number: 20160078942
    Abstract: Provided is a semiconductor device. The semiconductor device includes memory blocks including select transistors electrically coupled to local select lines and memory cells electrically coupled to local word lines, a first connection circuit configured to electrically couple the local select lines of a selected memory block and global select lines according to a block select signal, and formed in a first well region of a substrate, and a second connection circuit configured to electrically couple the local word lines of the selected memory block and global word lines according to the block selection signal, and formed in a second well region of the substrate.
    Type: Application
    Filed: February 9, 2015
    Publication date: March 17, 2016
    Inventors: Yeonghun LEE, Dong Hwan LEE
  • Publication number: 20150288283
    Abstract: A semiconductor apparatus includes a voltage supply circuit suitable for outputting a high voltage, a transfer circuit coupled between the voltage supply circuit and a peripheral circuit and suitable for transferring the high voltage to the peripheral circuit and a transfer control circuit suitable for outputting a transfer control signal to the transfer circuit to control the transfer of the high voltage to the peripheral circuit, wherein the transfer control circuit outputs the transfer control signal having a first positive voltage level to a gate of a transistor included in the transfer circuit when the voltage supply circuit outputs the high voltage to the transfer circuit.
    Type: Application
    Filed: September 4, 2014
    Publication date: October 8, 2015
    Inventors: Yeonghun LEE, Hyun HEO, Min Gyu KOO, Dong Hwan LEE
  • Publication number: 20150279471
    Abstract: A semiconductor device includes a plurality of memory blocks, wherein each of the plurality of memory blocks includes a first select transistor electrically coupled to a common source line, a second select transistor electrically coupled to a bit line, and a plurality of memory cells electrically coupled between the first and second select transistors, and an operation circuit suitable for applying operation voltages for a program operation, a read operation, and an erase operation to a selected memory block selected from the plurality of memory blocks, and applying a first positive voltage to gates of the first select transistors in unselected memory blocks of the plurality of memory blocks when an erase voltage is applied to the common source line during the erase operation.
    Type: Application
    Filed: September 18, 2014
    Publication date: October 1, 2015
    Inventors: Yeonghun LEE, Hyun HEO, Min Gyu KOO, Dong Hwan LEE
  • Publication number: 20150277392
    Abstract: A semiconductor device, wherein the semiconductor device includes a high-voltage supply circuit suitable for supplying a high voltage; a discharge circuit suitable for discharging the high voltage; and an auxiliary-voltage supply circuit suitable for supplying a first auxiliary voltage, which varies according to an operation state of the high-voltage supply circuit, to a reference node of the discharge circuit.
    Type: Application
    Filed: August 22, 2014
    Publication date: October 1, 2015
    Inventor: Yeonghun LEE