Patents by Inventor Tao DOU

Tao DOU 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: 20240298434
    Abstract: The disclosed semiconductor structure includes a window region, a transistor region, and a step region arranged in a first direction. The transistor region includes a word line region and a window region. The method making the semiconductor structure includes: forming active layers at intervals, forming dummy word line structures in the word line region and the step region covering the active layers at the same layer; forming a first isolation layer which a main body part and an interval part connected together, wherein the main body part is located in the window region, and the interval is located in the word line region and the step region between adjacent dummy word line structures; removing the active layers from the step region, removing the dummy word line structures; and forming a dielectric layer in the step region and the word line region. The embodiments improve the semiconductor structure's performance.
    Type: Application
    Filed: July 20, 2022
    Publication date: September 5, 2024
    Inventor: Tao Dou
  • Patent number: 12074443
    Abstract: A source-grid-load-storage networked collaborative frequency control method is disclosed, which comprises acquiring total active power ?P to be regulated during a secondary frequency regulation process of a power grid; performing frequency regulation by source-grid-load-storage of the power distribution system, allocating power regulation capacities, and determining whether the desired total active power is met after the frequency regulation; if the desired total active power is met, determining whether power of power generation units is out of limit; if the power of the power generation units is not out of limit, keeping active power of the power distribution system in balance to complete frequency regulation of the power grid; if the power of the power generation units is out of limit, correcting the power regulation capacities of the power generation units of the source-grid-load-storage and compensating a power difference to keep the active power of the power distribution system in balance.
    Type: Grant
    Filed: July 30, 2021
    Date of Patent: August 27, 2024
    Assignees: NANJING UNIVERSITY OF POSTS AND TELECOMMUNICATIONS, STATE GRID ELECTRIC POWER REREARCH INSTITUTE CO. LTD
    Inventors: Dong Yue, Chunxia Dou, Zhijun Zhang, Wenbin Yue, Xiaohua Ding, Jianbo Luo, Yanman Li, Kun Huang, Tao Han
  • Patent number: 12051909
    Abstract: Disclosed are an emergency control method and system based on source-load-storage regulation and cutback. According to the method, output power of power generating sources is regulated according to a power regulating quantity and a frequency regulation requirement, an output power compensation and output frequency of each power generating source are maintained within permissible ranges, so that a balance between power supply and demand of a power distribution network is maintained; and standby energy-storage power stations are used to make up a power gap, and an external power supply system is used to assist in making up a power deficiency, so that large load disturbance can be handled make up the power gap.
    Type: Grant
    Filed: July 30, 2021
    Date of Patent: July 30, 2024
    Assignees: NANJING UNIVERSITY OF POASTS AND TELECOMMUNICATIONS, STATE GRID ELECTRIC POWER RESEARCH INSTITUTE CO. LTD
    Inventors: Dong Yue, Chunxia Dou, Zhijun Zhang, Wenbin Yue, Xiaohua Ding, Jianbo Luo, Yanman Li, Kun Huang, Tao Han
  • Publication number: 20240194731
    Abstract: The present disclosure relates to a semiconductor device and a method of forming the same. The semiconductor device includes: a substrate; a transistor on the substrate, which includes an active cylinder, the active cylinder includes a channel region, a source region and a drain distributed on opposite sides of the channel region, a first doped region located between the source region and the channel region, and a second doped region located between the drain region and the channel region, the first doped impurity region, the source region, the second doped impurity region and the drain region, all these regions include doped ions of the first type, and the doped concentration of the first impurity region is lower than that of the source region impurity concentration, the doped concentration of the second doped region is lower than the doped concentration of the drain region. The present disclosure reduces the band-to-band tunneling effect inside the transistor, thereby reducing the GIDL effect.
    Type: Application
    Filed: July 20, 2022
    Publication date: June 13, 2024
    Inventor: Tao Dou
  • Publication number: 20240172410
    Abstract: A method of manufacturing a semiconductor structure is disclosed. The semiconductor structure includes a transistor area, which includes a first source-drain area and a word line region. The method includes forming an active layer on a substrate, and the active layer of the transistor region includes a plurality of active structures. A dummy word line structure covering the active structure of the same layer is formed in the first source drain region and the word line region. The first isolation layers arranged alternately with the dummy word line structures in the third direction are formed. Then the dummy word line structure is removed. An initial dielectric layer is formed on the surface of the active structure of the first source-drain region and the word line region. An initial word line is formed on the surface of the initial dielectric layer. The initial word line and the initial dielectric layer located in the first source and drain region are removed.
    Type: Application
    Filed: April 20, 2023
    Publication date: May 23, 2024
    Inventor: Tao DOU
  • Publication number: 20240008268
    Abstract: A semiconductor device includes a substrate including a memory region and a peripheral region located at an outer side of the memory region; a memory structure located above the memory region and including a memory array and signal lines, the memory array at least including memory cells spaced apart from each other along a first direction, and the signal lines being electrically connected with the memory cells, the first direction is perpendicular to the top surface of the substrate; a peripheral structure located above the peripheral region and including peripheral stacked layers, peripheral circuits located above the peripheral stacked layer, and peripheral leads located above the peripheral circuits, one end of each peripheral lead being electrically connected with at least one of peripheral circuits, and the other end being electrically connected with at least one of signal lines.
    Type: Application
    Filed: January 14, 2023
    Publication date: January 4, 2024
    Applicant: CHANGXIN MEMORY TECHNOLOGIES, INC.
    Inventors: Tao DOU, JIE BAI
  • Patent number: 11664227
    Abstract: A semiconductor structure and a method for forming the semiconductor structure are provided. The method includes providing a to-be-etched layer; forming an initial mask layer over the to-be-etched layer; forming a patterned structure, on the initial mask layer and exposing a portion of the initial mask layer; forming a barrier layer on a sidewall surface of the patterned structure; using the patterned structure and the barrier layer as a mask, performing an ion doping process on the initial mask layer to form a doped region and an un-doped region between doped regions in the initial mask layer; removing the patterned structure and the barrier layer; and forming a mask layer on a top surface of the to-be-etched layer by removing the un-doped region. The mask layer includes a first opening exposing the top surface of the to-be-etched layer.
    Type: Grant
    Filed: September 17, 2020
    Date of Patent: May 30, 2023
    Assignees: SEMICONDUCTOR MANUFACTURING INTERNATIONAL (SHANGHAI) CORPORATION, SEMICONDUCTOR MANUFACTURING INTERNATIONAL (BEIJING) CORPORATION
    Inventors: Qian Jiang Zhang, Bo Su, Tao Dou, Lin Lin Sun
  • Patent number: 11538685
    Abstract: A method of forming a semiconductor structure includes providing a to-be-etched layer, forming a core layer over the to-be-etched layer, the core layer including a first trench extending along a first direction, forming a sidewall spacer layer on a top surface of the core layer and on sidewalls and a bottom surface of the first trench, forming a block cut structure in the first trench after forming the sidewall spacer layer, and after forming the block cut structure, etching back the sidewall spacer layer until exposing the top surface of the core layer, thereby leaving a sidewall spacer on the sidewalls of the first trench. The block cut structure extends through the first trench along a second direction. The second direction and the first direction are different. The block cut structure includes a first block-cut layer and a second block-cut layer.
    Type: Grant
    Filed: July 15, 2020
    Date of Patent: December 27, 2022
    Assignees: Semiconductor Manufacturing International (Shanghai) Corporation, Semiconductor Manufacturing International (Beijing) Corporation
    Inventors: Xiamei Tang, Wei Shi, Tao Dou, Bo Su, Youcun Hu
  • Publication number: 20210090890
    Abstract: A semiconductor structure and a method for forming the semiconductor structure are provided. The method includes providing a to-be-etched layer; forming an initial mask layer over the to-be-etched layer; forming a patterned structure, on the initial mask layer and exposing a portion of the initial mask layer; forming a barrier layer on a sidewall surface of the patterned structure; using the patterned structure and the barrier layer as a mask, performing an ion doping process on the initial mask layer to form a doped region and an un-doped region between doped regions in the initial mask layer; removing the patterned structure and the barrier layer; and forming a mask layer on a top surface of the to-be-etched layer by removing the un-doped region. The mask layer includes a first opening exposing the top surface of the to-be-etched layer.
    Type: Application
    Filed: September 17, 2020
    Publication date: March 25, 2021
    Inventors: Qian Jiang ZHANG, Bo SU, Tao DOU, Lin Lin SUN
  • Publication number: 20210020442
    Abstract: A method of forming a semiconductor structure includes providing a to-be-etched layer, forming a core layer over the to-be-etched layer, the core layer including a first trench extending along a first direction, forming a sidewall spacer layer on a top surface of the core layer and on sidewalls and a bottom surface of the first trench, forming a block cut structure in the first trench after forming the sidewall spacer layer, and after forming the block cut structure, etching back the sidewall spacer layer until exposing the top surface of the core layer, thereby leaving a sidewall spacer on the sidewalls of the first trench. The block cut structure extends through the first trench along a second direction. The second direction and the first direction are different. The block cut structure includes a first block-cut layer and a second block-cut layer.
    Type: Application
    Filed: July 15, 2020
    Publication date: January 21, 2021
    Inventors: Xiamei TANG, Wei SHI, Tao DOU, Bo SU, Youcun HU