Patents by Inventor Ming-Daou Lee

Ming-Daou 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: 9041129
    Abstract: A semiconductor memory storage array device comprises a first electrode layer, an oxide layer, a second electrode layer, a memory material layer and a first insulator layer. The oxide layer is disposed on the first electrode layer. The second electrode layer is disposed on the oxide layer. The memory material layer is disposed on the second electrode layer. The first insulator layer is disposed adjacent to two sidewalls of the first electrode layer, the oxide layer, the second electrode layer and the memory material layer, so to define a gap either between the first electrode layer and the oxide layer or between the second electrode layer and the oxide layer.
    Type: Grant
    Filed: November 22, 2013
    Date of Patent: May 26, 2015
    Assignee: NATIONAL APPLIED RESEARCH LABORATORIES
    Inventors: Chia-Hua Ho, Ming-Daou Lee, Wen-Cheng Chiu, Cho-Lun Hsu
  • Patent number: 8927956
    Abstract: A resistance type memory device is provided. The resistance type memory device includes a first and a second conductors and a metal oxide layer. The metal oxide layer is disposed between the first and the second conductors, and the resistance type memory device is defined in a first resistivity. The resistance type memory device is defined in a second resistivity after a first pulse voltage is applied to the metal oxide layer. The resistance type memory device is defined in a third resistivity after a second pulse voltage is applied to the metal oxide layer. The second resistivity is greater than the first resistivity, and the first resistivity is greater than the third resistivity.
    Type: Grant
    Filed: March 12, 2009
    Date of Patent: January 6, 2015
    Assignee: MACRONIX International Co., Ltd.
    Inventors: Ming-Daou Lee, Chia-Hua Ho, Erh-Kun Lai, Kuang-Yeu Hsieh
  • Patent number: 8835894
    Abstract: The present invention discloses a resistive memory structure and a method for fabricating the same. The memory structure comprises a plurality of memory cells. Each memory cell further comprises two separate upper sub-electrodes fabricated from an upper electrode, two separate lower sub-electrodes fabricated from a lower electrode and intersecting the upper sub-electrodes, and a resistive layer arranged between the upper sub-electrodes and the lower sub-electrodes. Thereby, four sub-memory cells are formed in the intersections of the two upper sub-electrodes, the two lower sub-electrodes, and the resistive layer. Thus is increased the density of a memory structure in an identical area.
    Type: Grant
    Filed: April 20, 2012
    Date of Patent: September 16, 2014
    Assignee: National Applied Research Laboratories
    Inventors: Ming-Daou Lee, ChiaHua Ho, Cho-Lun Hsu, Wen-Cheng Chiu
  • Patent number: 8772106
    Abstract: Memory devices are described along with methods for manufacturing and methods for operating. A memory device as described herein includes a plurality of memory cells located between word lines and bit lines. Memory cells in the plurality of memory cells comprise a diode and a metal-oxide memory element programmable to a plurality of resistance states including a first and a second resistance state, the diode of the memory element arranged in electrical series along a current path between a corresponding word line and a corresponding bit line. The device further includes bias circuitry to apply bias arrangements across the series arrangement of the diode and the memory element of a selected memory cell in the plurality of memory cells.
    Type: Grant
    Filed: July 9, 2013
    Date of Patent: July 8, 2014
    Assignee: Macronix International Co., Ltd.
    Inventors: Ming-Daou Lee, Erh-Kun Lai, Kuang-Yeu Hsieh, Wei-Chih Chien, Chien Hung Yeh
  • Patent number: 8722469
    Abstract: A memory cell and a process for manufacturing the same are provided. In the process, a first electrode layer is formed on a conductive layer over a substrate, and then a transition metal layer is formed on the first electrode layer. After that, the transition metal layer is subjected to a plasma oxidation step to form a transition metal oxide layer as a precursor of a data storage layer, and a second electrode layer is formed on the transition metal oxide layer. A memory cell is formed after the second electrode layer, the transition metal oxide layer and the first electrode layer are patterned into a second electrode, a data storage layer and a first electrode, respectively.
    Type: Grant
    Filed: October 4, 2007
    Date of Patent: May 13, 2014
    Assignee: MACRONIX International Co., Ltd.
    Inventors: Ming-Daou Lee, Chia-Hua Ho, Erh-Kun Lai, Kuang-Yeu Hsieh
  • Publication number: 20140077150
    Abstract: A semiconductor memory storage array device comprises a first electrode layer, an oxide layer, a second electrode layer, a memory material layer and a first insulator layer. The oxide layer is disposed on the first electrode layer. The second electrode layer is disposed on the oxide layer. The memory material layer is disposed on the second electrode layer. The first insulator layer is disposed adjacent to two sidewalls of the first electrode layer, the oxide layer, the second electrode layer and the memory material layer, so to define a gap either between the first electrode layer and the oxide layer or between the second electrode layer and the oxide layer.
    Type: Application
    Filed: November 22, 2013
    Publication date: March 20, 2014
    Applicant: National Applied Research Laboratories
    Inventors: CHIA-HUA HO, MING-DAOU LEE, WEN-CHENG CHIU, CHO-LUN HSU
  • Patent number: 8642398
    Abstract: A resistive random access memory including, an insulating layer, a hard mask layer, a bottom electrode, a memory cell and a top electrode is provided. The insulating layer is disposed on the bottom electrode. The insulating layer has a contact hole having a first width. The hard mask layer has an opening. A portion of the memory cell is exposed from the opening and has a second width smaller than the first width. The top electrode is disposed on the insulating layer and is coupled with the memory cell.
    Type: Grant
    Filed: January 10, 2012
    Date of Patent: February 4, 2014
    Assignee: Macronix International Co., Ltd.
    Inventors: Ming-Daou Lee, Chia-Hua Ho, Erh-Kun Lai, Kuang-Yeu Hsieh
  • Publication number: 20130295719
    Abstract: Memory devices are described along with methods for manufacturing and methods for operating. A memory device as described herein includes a plurality of memory cells located between word lines and bit lines. Memory cells in the plurality of memory cells comprise a diode and a metal-oxide memory element programmable to a plurality of resistance states including a first and a second resistance state, the diode of the memory element arranged in electrical series along a current path between a corresponding word line and a corresponding bit line. The device further includes bias circuitry to apply bias arrangements across the series arrangement of the diode and the memory element of a selected memory cell in the plurality of memory cells.
    Type: Application
    Filed: July 9, 2013
    Publication date: November 7, 2013
    Inventors: Ming-Daou Lee, Erh-Kun Lai, Kuang-Yeu Hsieh, Wei-Chih Chien, Chien Hung Yeh
  • Publication number: 20130221313
    Abstract: The present invention discloses an ultra high density resistive memory structure and a method for fabricating the same. The memory structure comprises a plurality of memory cells. Each memory cell further comprises two separate upper sub-electrodes fabricated from an upper electrode, two separate lower sub-electrodes fabricated from a lower electrode and intersecting the upper sub-electrodes, and a resistive layer arranged between the upper sub-electrodes and the lower sub-electrodes. Thereby, four sub-memory cells are formed in the intersections of the two upper sub-electrodes, the two lower sub-electrodes, and the resistive layer. Thus is increased the density of a memory structure in an identical area.
    Type: Application
    Filed: April 20, 2012
    Publication date: August 29, 2013
    Inventors: Ming-Daou LEE, ChiaHua HO, Cho-Lun HSU, Wen-Cheng CHIU
  • Patent number: 8488362
    Abstract: Memory devices are described along with methods for manufacturing and methods for operating. A memory device as described herein includes a plurality of memory cells located between word lines and bit lines. Memory cells in the plurality of memory cells comprise a diode and a metal-oxide memory element programmable to a plurality of resistance states including a first and a second resistance state, the diode of the memory element arranged in electrical series along a current path between a corresponding word line and a corresponding bit line. The device further includes bias circuitry to apply bias arrangements across the series arrangement of the diode and the memory element of a selected memory cell in the plurality of memory cells.
    Type: Grant
    Filed: April 29, 2009
    Date of Patent: July 16, 2013
    Assignee: Macronix International Co., Ltd.
    Inventors: Ming-Daou Lee, Erh-Kun Lai, Kuang-Yeu Hsieh, Wei-Chih Chien, Chien-Hung Yeh
  • Publication number: 20120108031
    Abstract: A resistive random access memory including, an insulating layer, a hard mask layer, a bottom electrode, a memory cell and a top electrode is provided. The insulating layer is disposed on the bottom electrode. The insulating layer has a contact hole having a first width. The hard mask layer has an opening. A portion of the memory cell is exposed from the opening and has a second width smaller than the first width. The top electrode is disposed on the insulating layer and is coupled with the memory cell.
    Type: Application
    Filed: January 10, 2012
    Publication date: May 3, 2012
    Applicant: Macronix International Co., Ltd.
    Inventors: Ming-Daou LEE, Chia-Hua Ho, Erh-Kun Lai, Kuang-Yeu Hsieh
  • Patent number: 8114715
    Abstract: A resistive random access memory including, an insulating layer, a hard mask layer, a bottom electrode, a memory cell and a top electrode is provided. The insulating layer is disposed on the bottom electrode. The insulating layer has a contact hole having a first width. The hard mask layer has an opening. A portion of the memory cell is exposed from the opening and has a second width smaller than the first width. The top electrode is disposed on the insulating layer and is coupled with the memory cell.
    Type: Grant
    Filed: January 5, 2010
    Date of Patent: February 14, 2012
    Assignee: Macronix International Co., Ltd.
    Inventors: Ming-Daou Lee, Chia-Hua Ho, Erh-Kun Lai, Kuang-Yeu Hsieh
  • Patent number: 8072793
    Abstract: Memory devices are described along with methods for manufacturing. A memory device as described herein includes a plurality of memory cells located between word lines and bit lines. Each memory cell comprises a diode and a plurality of memory elements each comprising one or more metal-oxygen compounds, the diode and the plurality of memory elements arranged in electrical series along a current path between a corresponding word line and a corresponding bit line.
    Type: Grant
    Filed: September 4, 2008
    Date of Patent: December 6, 2011
    Assignee: Macronix International Co., Ltd.
    Inventors: Ming-Daou Lee, Erh-Kun Lai, Kuang Yeu Hsieh
  • Publication number: 20100277967
    Abstract: Memory devices are described along with methods for manufacturing and methods for operating. A memory device as described herein includes a plurality of memory cells located between word lines and bit lines. Memory cells in the plurality of memory cells comprise a diode and a metal-oxide memory element programmable to a plurality of resistance states including a first and a second resistance state, the diode of the memory element arranged in electrical series along a current path between a corresponding word line and a corresponding bit line. The device further includes bias circuitry to apply bias arrangements across the series arrangement of the diode and the memory element of a selected memory cell in the plurality of memory cells.
    Type: Application
    Filed: April 29, 2009
    Publication date: November 4, 2010
    Applicant: MACRONIX INTERNATIONAL CO., LTD.
    Inventors: MING-DAOU LEE, Erh-Kun Lai, Kuang-Yeu Hsieh, Wei-Chih Chien, Chien-Hung Yeh
  • Publication number: 20100112810
    Abstract: A resistive random access memory including, an insulating layer, a hard mask layer, a bottom electrode, a memory cell and a top electrode is provided. The insulating layer is disposed on the bottom electrode. The insulating layer has a contact hole having a first width. The hard mask layer has an opening. A portion of the memory cell is exposed from the opening and has a second width smaller than the first width. The top electrode is disposed on the insulating layer and is coupled with the memory cell.
    Type: Application
    Filed: January 5, 2010
    Publication date: May 6, 2010
    Applicant: Macronix International Co., Ltd.
    Inventors: Ming-Daou Lee, Chia-Hua Ho, Erh-Kun Lai, Kuang-Yeu Hsieh
  • Publication number: 20100054014
    Abstract: Memory devices are described along with methods for manufacturing. A memory device as described herein includes a plurality of memory cells located between word lines and bit lines. Each memory cell comprises a diode and a plurality of memory elements each comprising one or more metal-oxygen compounds, the diode and the plurality of memory elements arranged in electrical series along a current path between a corresponding word line and a corresponding bit line.
    Type: Application
    Filed: September 4, 2008
    Publication date: March 4, 2010
    Inventors: Ming-Daou Lee, Erh-Kun Lai, Kuang Yeu Hsieh
  • Patent number: 7667293
    Abstract: A resistive random access memory including, an insulating layer, a hard mask layer, a bottom electrode, a memory cell and a top electrode is provided. The insulating layer is disposed on the bottom electrode. The insulating layer has a contact hole having a first width. The hard mask layer has an opening. A portion of the memory cell is exposed from the opening and has a second width smaller than the first width. The top electrode is disposed on the insulating layer and is coupled with the memory cell.
    Type: Grant
    Filed: September 13, 2007
    Date of Patent: February 23, 2010
    Assignee: Macronix International Co., Ltd.
    Inventors: Ming-Daou Lee, Chia-Hua Ho, Erh-Kun Lai, Kuang-Yeu Hsieh
  • Publication number: 20090166604
    Abstract: A resistance type memory device is provided. The resistance type memory device includes a first and a second conductors and a metal oxide layer. The metal oxide layer is disposed between the first and the second conductors, and the resistance type memory device is defined in a first resistivity. The resistance type memory device is defined in a second resistivity after a first pulse voltage is applied to the metal oxide layer. The resistance type memory device is defined in a third resistivity after a second pulse voltage is applied to the metal oxide layer. The second resistivity is greater than the first resistivity, and the first resistivity is greater than the third resistivity.
    Type: Application
    Filed: March 12, 2009
    Publication date: July 2, 2009
    Applicant: MACRONIX International Co., Ltd.
    Inventors: Ming-Daou Lee, Chia-Hua Ho, Erh-Kun Lai, Kuang-Yeu Hsieh
  • Patent number: 7524722
    Abstract: A resistance type memory device is provided. The resistance type memory device is disposed on a substrate and includes a tungsten electrode, an upper electrode, and a tungsten oxide layer. The upper electrode is disposed on the tungsten electrode. The tungsten oxide layer is sandwiched between the tungsten electrode and the upper electrode.
    Type: Grant
    Filed: April 3, 2007
    Date of Patent: April 28, 2009
    Assignee: MACRONIX International Co., Ltd.
    Inventors: Ming-Daou Lee, Chia-Hua Ho, Erh-Kun Lai, Kuang-Yeu Hsieh
  • Publication number: 20090072211
    Abstract: A resistive random access memory including, an insulating layer, a hard mask layer, a bottom electrode, a memory cell and a top electrode is provided. The insulating layer is disposed on the bottom electrode. The insulating layer has a contact hole having a first width. The hard mask layer has an opening. A portion of the memory cell is exposed from the opening and has a second width smaller than the first width. The top electrode is disposed on the insulating layer and is coupled with the memory cell.
    Type: Application
    Filed: September 13, 2007
    Publication date: March 19, 2009
    Applicant: Macronix International Co., Ltd.
    Inventors: Ming-Daou Lee, Chia-Hua Ho, Erh-Kun Lai, Kuang-Yeu Hsieh