Patents by Inventor Ming-Shan Lo

Ming-Shan Lo 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: 10692981
    Abstract: A memory device and a manufacturing method thereof are provided. The memory device includes a first gate structure, a second gate structure, an oxide layer and a nitride layer. The first gate structure and the second gate structure are disposed on a substrate. The oxide layer covers the first gate structure. The nitride layer is disposed on the substrate and covers the oxide and the second gate structure. The refraction index of a portion of the nitride layer adjacent to an interface between the nitride layer and each of the first gate structure and the second gate structure is about 5% to 10% less than the refraction index of the remaining portion of the nitride layer.
    Type: Grant
    Filed: February 27, 2019
    Date of Patent: June 23, 2020
    Assignee: eMemory Technology Inc.
    Inventors: Yen-Ting Chen, Ming-Shan Lo
  • Patent number: 10664239
    Abstract: A method of programming a nonvolatile memory cell is provided according to an embodiment of the invention. The nonvolatile memory cell includes a substrate; and a select transistor, a following gate transistor, and an anti-fuse transistor comprising a first gate oxide layer, disposed on the substrate and coupled in series with each other. The programming method includes applying to said nonvolatile memory cell a variable DC voltage source comprising at least one high voltage part for forming a trapping path within the first gate oxide layer and at least one low voltage part for crystallizing the trapping path into a silicon filament.
    Type: Grant
    Filed: September 10, 2018
    Date of Patent: May 26, 2020
    Assignee: eMemory Technology Inc.
    Inventors: Kuan-Hsun Chen, Chun-Hung Lu, Ming-Shan Lo
  • Publication number: 20190326304
    Abstract: A memory device and a manufacturing method thereof are provided. The memory device includes a first gate structure, a second gate structure, an oxide layer and a nitride layer. The first gate structure and the second gate structure are disposed on a substrate. The oxide layer covers the first gate structure. The nitride layer is disposed on the substrate and covers the oxide and the second gate structure. The refraction index of a portion of the nitride layer adjacent to an interface between the nitride layer and each of the first gate structure and the second gate structure is about 5% to 10% less than the refraction index of the remaining portion of the nitride layer.
    Type: Application
    Filed: February 27, 2019
    Publication date: October 24, 2019
    Applicant: eMemory Technology Inc.
    Inventors: Yen-Ting Chen, Ming-Shan Lo
  • Patent number: 10283511
    Abstract: A non-volatile memory including memory cells is provided. Each of the memory cells includes a substrate, a floating gate structure, a select gate structure, and a first doped region. The floating gate structure is disposed on the substrate. The select gate structure is disposed on the substrate and located at one side of the floating gate structure. The first doped region is disposed in the substrate at another side of the floating gate structure. The first doped regions between two adjacent memory cells are adjacent to one another and separated from one another.
    Type: Grant
    Filed: March 22, 2017
    Date of Patent: May 7, 2019
    Assignee: eMemory Technology Inc.
    Inventors: Yi-Hung Li, Ming-Shan Lo, Cheng-Da Huang
  • Publication number: 20190080778
    Abstract: A method of programming a nonvolatile memory cell is provided according to an embodiment of the invention. The nonvolatile memory cell includes a substrate; and a select transistor, a following gate transistor, and an anti-fuse transistor comprising a first gate oxide layer, disposed on the substrate and coupled in series with each other. The programming method includes applying to said nonvolatile memory cell a variable DC voltage source comprising at least one high voltage part for forming a trapping path within the first gate oxide layer and at least one low voltage part for crystallizing the trapping path into a silicon filament.
    Type: Application
    Filed: September 10, 2018
    Publication date: March 14, 2019
    Applicant: eMemory Technology Inc.
    Inventors: Kuan-Hsun Chen, Chun-Hung Lu, Ming-Shan Lo
  • Patent number: 10083757
    Abstract: A single-poly NVM cell includes a select transistor and a floating gate transistor serially connected to the select transistor. The select transistor includes a select gate, a select gate oxide layer, a source doping region, a first LDD region merged with the source doping region, a commonly-shared doping region, and a second LDD region merged with the commonly-shared doping region. The floating gate transistor includes a floating gate, a floating gate oxide layer, the commonly-shared doping region, a third LDD region merged with the commonly-shared doping region, and a drain doping region. A drain-side extension modified region is disposed under the spacer and in proximity to the drain doping region.
    Type: Grant
    Filed: October 14, 2016
    Date of Patent: September 25, 2018
    Assignee: eMemory Technology Inc.
    Inventors: Kuan-Hsun Chen, Ming-Shan Lo, Ting-Ting Su
  • Publication number: 20180102376
    Abstract: A non-volatile memory including memory cells is provided. Each of the memory cells includes a substrate, a floating gate structure, a select gate structure, and a first doped region. The floating gate structure is disposed on the substrate. The select gate structure is disposed on the substrate and located at one side of the floating gate structure. The first doped region is disposed in the substrate at another side of the floating gate structure. The first doped regions between two adjacent memory cells are adjacent to one another and separated from one another.
    Type: Application
    Filed: March 22, 2017
    Publication date: April 12, 2018
    Applicant: eMemory Technology Inc.
    Inventors: Yi-Hung Li, Ming-Shan Lo, Cheng-Da Huang
  • Publication number: 20180019250
    Abstract: A UV-erasable memory device with a UV transmitting window is disclosed. The UV-erasable memory device includes a substrate, two serially connected PMOS transistors on the substrate; an interlayer dielectric (ILD) layer covering the two PMOS transistors, a first intermetal dielectric (IMD) layer on the ILD layer, an intermediate layer on the first IMD layer, a UV transmitting window in the intermediate layer, and a second intermetal dielectric (IMD) layer on the first IMD layer and in the UV transmitting window.
    Type: Application
    Filed: June 22, 2017
    Publication date: January 18, 2018
    Inventors: Ting-Ting Su, Kuan-Hsun Chen, Ming-Shan Lo
  • Patent number: 9640259
    Abstract: A single-poly nonvolatile memory (NVM) cell includes a PMOS select transistor on a semiconductor substrate and a PMOS floating gate transistor series connected to the PMOS select transistor. The PMOS floating gate transistor comprises a floating gate and a gate oxide layer between the floating gate and the semiconductor substrate. A protector oxide layer covers and is indirect contact with the floating gate. A contact etch stop layer is disposed on the protector oxide layer such that the floating gate is isolated from the contact etch stop layer by the protector oxide layer.
    Type: Grant
    Filed: November 20, 2015
    Date of Patent: May 2, 2017
    Assignee: eMemory Technology Inc.
    Inventors: Yi-Hung Li, Yen-Hsin Lai, Ming-Shan Lo, Shih-Chan Huang
  • Publication number: 20170110467
    Abstract: A single-poly NVM cell includes a select transistor and a floating gate transistor serially connected to the select transistor. The select transistor includes a select gate, a select gate oxide layer, a source doping region, a first LDD region merged with the source doping region, a commonly-shared doping region, and a second LDD region merged with the commonly-shared doping region. The floating gate transistor includes a floating gate, a floating gate oxide layer, the commonly-shared doping region, a third LDD region merged with the commonly-shared doping region, and a drain doping region. A drain-side extension modified region is disposed under the spacer and in proximity to the drain doping region.
    Type: Application
    Filed: October 14, 2016
    Publication date: April 20, 2017
    Inventors: Kuan-Hsun Chen, Ming-Shan Lo, Ting-Ting Su
  • Publication number: 20160079251
    Abstract: A single-poly nonvolatile memory (NVM) cell includes a PMOS select transistor on a semiconductor substrate and a PMOS floating gate transistor series connected to the PMOS select transistor. The PMOS floating gate transistor comprises a floating gate and a gate oxide layer between the floating gate and the semiconductor substrate. A protector oxide layer covers and is indirect contact with the floating gate. A contact etch stop layer is disposed on the protector oxide layer such that the floating gate is isolated from the contact etch stop layer by the protector oxide layer.
    Type: Application
    Filed: November 20, 2015
    Publication date: March 17, 2016
    Inventors: Yi-Hung Li, Yen-Hsin Lai, Ming-Shan Lo, Shih-Chan Huang
  • Patent number: 9236453
    Abstract: According to one embodiment, a single-poly nonvolatile memory (NVM) cell includes a PMOS select transistor on a semiconductor substrate and a PMOS floating gate transistor series connected to the PMOS select transistor. The PMOS floating gate transistor comprises a floating gate and a gate oxide layer between the floating gate and the semiconductor substrate. A protector oxide layer covers and is in direct contact with the floating gate. A contact etch stop layer is disposed on the protector oxide layer such that the floating gate is isolated from the contact etch stop layer by the protector oxide layer.
    Type: Grant
    Filed: March 30, 2014
    Date of Patent: January 12, 2016
    Assignee: eMemory Technology Inc.
    Inventors: Yi-Hung Li, Yen-Hsin Lai, Ming-Shan Lo, Shih-Chan Huang
  • Publication number: 20150091073
    Abstract: According to one embodiment, a single-poly nonvolatile memory (NVM) cell includes a PMOS select transistor on a semiconductor substrate and a PMOS floating gate transistor series connected to the PMOS select transistor. The PMOS floating gate transistor comprises a floating gate and a gate oxide layer between the floating gate and the semiconductor substrate. A protector oxide layer covers and is in direct contact with the floating gate. A contact etch stop layer is disposed on the protector oxide layer such that the floating gate is isolated from the contact etch stop layer by the protector oxide layer.
    Type: Application
    Filed: March 30, 2014
    Publication date: April 2, 2015
    Applicant: EMEMORY TECHNOLOGY INC.
    Inventors: Yi-Hung Li, Yen-Hsin Lai, Ming-Shan Lo, Shih-Chan Huang