Patents by Inventor Kuk-Hwan Kim

Kuk-Hwan Kim 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: 20150138873
    Abstract: The present application describes a crossbar memory array. The memory array includes a first array of parallel nanowires of a first material and a second array of parallel nanowires of a second material. The first and the second array are oriented at an angle with each other. The array further includes a plurality of nanostructures of non-crystalline silicon disposed between a nanowire of the first material and a nanowire of the second material at each intersection of the two arrays. The nanostructures form a resistive memory cell together with the nanowires of the first and second materials.
    Type: Application
    Filed: December 8, 2014
    Publication date: May 21, 2015
    Inventors: Wei Lu, Sung Hyun Jo, Kuk-Hwan Kim
  • Patent number: 8946669
    Abstract: A method for forming a resistive memory device includes providing a substrate comprising a first metal material, forming a conductive silicon-bearing layer on top of the first metal material, wherein the conductive silicon-bearing layer comprises an upper region and a lower region, and wherein the lower region is adjacent to the first metal material, forming an amorphous layer from the upper region of the conductive silicon-bearing layer, and disposing an active metal material above the amorphous layer.
    Type: Grant
    Filed: August 15, 2012
    Date of Patent: February 3, 2015
    Assignee: Crossbar, Inc.
    Inventors: Sung Hyun Jo, Kuk-Hwan Kim, Tanmay Kumar
  • Patent number: 8907317
    Abstract: The present application describes a crossbar memory array. The memory array includes a first array of parallel nanowires of a first material and a second array of parallel nanowires of a second material. The first and the second array are oriented at an angle with each other. The array further includes a plurality of nanostructures of non-crystalline silicon disposed between a nanowire of the first material and a nanowire of the second material at each intersection of the two arrays. The nanostructures form a resistive memory cell together with the nanowires of the first and second materials.
    Type: Grant
    Filed: November 7, 2011
    Date of Patent: December 9, 2014
    Assignee: The Regents of The University of Michigan
    Inventors: Wei Lu, Sung Hyun Jo, Kuk-Hwan Kim
  • Publication number: 20140264236
    Abstract: Provision of fabrication, construction, and/or assembly of a memory device including a two-terminal memory portion is described herein. The two-terminal memory device fabrication can provide enhanced capabilities in connection with precisely tuning on-state current over a greater possible range.
    Type: Application
    Filed: June 5, 2013
    Publication date: September 18, 2014
    Inventors: Kuk-Hwan KIM, Ping LU, Chen-Chun CHEN, Sung Hyun JO
  • Publication number: 20140158968
    Abstract: A method for forming a non-volatile memory device includes disposing a junction layer comprising a doped silicon-bearing material in electrical contact with a first conductive material, forming a switching layer comprising an undoped amorphous silicon-bearing material upon at least a portion of the junction layer, disposing a layer comprising a non-noble metal material upon at least a portion of the switching layer, disposing an active metal layer comprising a noble metal material upon at least a portion of the layer, and forming a second conductive material in electrical contact with the active metal layer.
    Type: Application
    Filed: September 23, 2013
    Publication date: June 12, 2014
    Applicant: Crossbar, Inc.
    Inventors: Sung Hyun JO, Kuk-Hwan KIM, Tanmay KUMAR
  • Publication number: 20140153317
    Abstract: A non-volatile solid state resistive device that includes a first electrode, a p-type poly-silicon second electrode, and a non-crystalline silicon nanostructure electrically connected between the electrodes. The nanostructure has a resistance that is adjustable in response to a voltage being applied to the nanostructure via the electrodes. The nanostructure can be formed as a nanopillar embedded in an insulating layer located between the electrodes. The first electrode can be a silver or other electrically conductive metal electrode. A third (metal) electrode can be connected to the p-type poly-silicon second electrode at a location adjacent the nanostructure to permit connection of the two metal electrodes to other circuitry. The resistive device can be used as a unit memory cell of a digital non-volatile memory device to store one or more bits of digital data by varying its resistance between two or more values.
    Type: Application
    Filed: February 9, 2014
    Publication date: June 5, 2014
    Inventors: Wei Lu, Sung Hyun Jo, Kuk-Hwan Kim
  • Patent number: 8687402
    Abstract: A non-volatile solid state resistive device that includes a first electrode, a p-type poly-silicon second electrode, and a non-crystalline silicon nanostructure electrically connected between the electrodes. The nanostructure has a resistance that is adjustable in response to a voltage being applied to the nanostructure via the electrodes. The nanostructure can be formed as a nanopillar embedded in an insulating layer located between the electrodes. The first electrode can be a silver or other electrically conductive metal electrode. A third (metal) electrode can be connected to the p-type poly-silicon second electrode at a location adjacent the nanostructure to permit connection of the two metal electrodes to other circuitry. The resistive device can be used as a unit memory cell of a digital non-volatile memory device to store one or more bits of digital data by varying its resistance between two or more values.
    Type: Grant
    Filed: October 8, 2009
    Date of Patent: April 1, 2014
    Assignee: The Regents of The University of Michigan
    Inventors: Wei Lu, Sung Hyun Jo, Kuk-Hwan Kim
  • Patent number: 8569172
    Abstract: A method for forming a non-volatile memory device includes disposing a junction layer comprising a doped silicon-bearing material in electrical contact with a first conductive material, forming a switching layer comprising an undoped amorphous silicon-bearing material upon at least a portion of the junction layer, disposing a layer comprising a non-noble metal material upon at least a portion of the switching layer, disposing an active metal layer comprising a noble metal material upon at least a portion of the layer, and forming a second conductive material in electrical contact with the active metal layer.
    Type: Grant
    Filed: August 14, 2012
    Date of Patent: October 29, 2013
    Assignee: Crossbar, Inc.
    Inventors: Sung Hyun Jo, Kuk-Hwan Kim, Tanmay Kumar
  • Patent number: D660276
    Type: Grant
    Filed: March 24, 2011
    Date of Patent: May 22, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kuk-Hwan Kim, Nam-Mi Kim, Seog-Guen Kim
  • Patent number: D666569
    Type: Grant
    Filed: August 26, 2011
    Date of Patent: September 4, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kuk-Hwan Kim, Tae-Ho Kim
  • Patent number: D666570
    Type: Grant
    Filed: August 26, 2011
    Date of Patent: September 4, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kuk-Hwan Kim, Tae-Ho Kim
  • Patent number: D666571
    Type: Grant
    Filed: August 26, 2011
    Date of Patent: September 4, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kuk-Hwan Kim, Tae-Ho Kim
  • Patent number: D666572
    Type: Grant
    Filed: August 26, 2011
    Date of Patent: September 4, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kuk-Hwan Kim, Tae-Ho Kim
  • Patent number: D666573
    Type: Grant
    Filed: August 26, 2011
    Date of Patent: September 4, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kuk-Hwan Kim, Tae-Ho Kim
  • Patent number: D666574
    Type: Grant
    Filed: August 26, 2011
    Date of Patent: September 4, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kuk-Hwan Kim, Tae-Ho Kim
  • Patent number: D687795
    Type: Grant
    Filed: May 23, 2012
    Date of Patent: August 13, 2013
    Assignee: Samsung Electronics Co. Ltd.
    Inventors: Kuk-Hwan Kim, Tae-Ho Kim
  • Patent number: D688224
    Type: Grant
    Filed: July 20, 2012
    Date of Patent: August 20, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kuk-Hwan Kim, Seog-Guen Kim, Tae-Ho Kim
  • Patent number: D695247
    Type: Grant
    Filed: April 2, 2012
    Date of Patent: December 10, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kuk-Hwan Kim, Tae-Ho Kim, Joon-Ki Yun
  • Patent number: D726193
    Type: Grant
    Filed: August 4, 2014
    Date of Patent: April 7, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kuk-Hwan Kim, Jae-Ho Baik, Jung-Min Yeo, Min-Hyouk Lee
  • Patent number: D730337
    Type: Grant
    Filed: August 21, 2013
    Date of Patent: May 26, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Kuk-Hwan Kim