Patents by Inventor Kanyu Cao

Kanyu Cao 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: 20230154515
    Abstract: The present disclosure relates to a semiconductor structure and a manufacturing method thereof. The semiconductor structure includes: a substrate; a transistor, including a control terminal, a first terminal, and a second terminal; a first magnetic memory structure, a bottom electrode of which is electrically connected to the first terminal of the transistor; a second magnetic memory structure, a top electrode of which is electrically connected to the first terminal of the transistor, the bottom electrode of the first magnetic memory structure is located in a same layer with a bottom electrode of the second magnetic memory structure; a first bit line, electrically connected to a top electrode of the first magnetic memory structure; a second bit line, electrically connected to the bottom electrode of the second magnetic memory structure; and a selection line, electrically connected to a second terminal of the transistor.
    Type: Application
    Filed: June 23, 2022
    Publication date: May 18, 2023
    Inventors: Xiaoguang WANG, DINGGUI ZENG, Huihui LI, Jiefang DENG, Kanyu CAO
  • Patent number: 11626558
    Abstract: Embodiments of the present disclosure provide a semiconductor structure and a manufacturing method thereof, and a memory. The semiconductor structure may at least include: a plurality of transistors arranged in a staggered manner, wherein the transistors share one source plate, a channel of the transistor is located on the source plate, and a channel length direction of the transistor is perpendicular to a surface of the source plate, and a material of the channel includes an oxide semiconductor; a plurality of drain contact members, electrically connected to drains of the transistors, wherein an odd number of transistors share one drain contact member, and the transistors sharing the same drain contact member are driven by a same word line; and a plurality of magnetic tunnel junctions, located on the drain contact members, wherein the magnetic tunnel junctions are electrically connected to the drain contact members in a one-to-one corresponding manner.
    Type: Grant
    Filed: July 14, 2022
    Date of Patent: April 11, 2023
    Assignees: CHANGXIN MEMORY TECHNOLOGIES, INC., BEIJING SUPERSTRING ACADEMY OF MEMORY TECHNOLOGY
    Inventors: Xiaoguang Wang, Dinggui Zeng, Huihui Li, Kanyu Cao
  • Publication number: 20230094859
    Abstract: The present disclosure relates to a semiconductor structure and a manufacturing method thereof. The semiconductor structure includes: a substrate, having a first surface; a plurality of memory cells, located on the first surface of the substrate and arranged according to a first preset pattern; and a plurality of memory contact structures, corresponding to the memory cells in a one-to-one manner, where bottom portions of the memory contact structures are in contact with top portions of the memory cells, and top portions of the memory contact structures are arranged according to a second preset pattern. The bottom portion of the memory contact structure is arranged opposite to the top portion of the memory contact structure.
    Type: Application
    Filed: June 24, 2022
    Publication date: March 30, 2023
    Inventors: Xiaoguang WANG, DINGGUI ZENG, Huihui LI, Jiefang DENG, Kanyu CAO
  • Publication number: 20230061246
    Abstract: A semiconductor structure, a manufacturing method therefor and a memory are provided. The semiconductor structure may at least include: a plurality of aligned transistors, in which the transistors share a same source plate, channels of the transistors are located above the source plate, the channel length direction of the transistors is perpendicular to a surface of the source plate, and a material of the channels includes a single crystal semiconductor; a plurality of drain contacts, electrically connected with drains of the transistors, in which even number of the transistors share one same drain contact; and a plurality of magnetic tunnel junctions, located on the drain contacts and electrically connected with the drain contacts in one-to-one correspondence.
    Type: Application
    Filed: July 5, 2022
    Publication date: March 2, 2023
    Inventors: Xiaoguang WANG, Dinggui ZENG, Huihui LI, Kanyu CAO
  • Publication number: 20230067509
    Abstract: The present disclosure provides a semiconductor structure and a manufacturing method thereof. The semiconductor structure includes a substrate. A plurality of vertical transistors arranged in an aligned manner are formed on the substrate, wherein a channel material of the vertical transistor includes an oxide semiconductor. A plurality of staggered contact pads connected to upper ends of the vertical transistors are formed on the vertical transistors, wherein a single contact pad is connected to the upper ends of an even number of vertical transistors. A magnetic tunnel junction is formed on the contact pad.
    Type: Application
    Filed: June 23, 2022
    Publication date: March 2, 2023
    Inventors: Xiaoguang Wang, Dinggui Zeng, Huihui Li, Kanyu Cao
  • Publication number: 20230063767
    Abstract: A method for manufacturing a semiconductor structure, a semiconductor structure and a semiconductor memory are provided. The method includes: providing a substrate; forming an MTJ structure and a first mask structure sequentially on the substrate; patterning the first mask structure to form a first pattern extending in a first direction; forming a second mask structure on the first pattern; patterning the second mask structure to form a second pattern extending in a second direction, in which the first direction intersects the second direction, and is not perpendicular to the second direction; patterning the first pattern by utilizing the second pattern to form a cellular pattern; and transferring the cellular pattern to the MTJ structure to form a cellular MTJ array.
    Type: Application
    Filed: June 17, 2022
    Publication date: March 2, 2023
    Inventors: Kanyu CAO, Xiaoguang WANG, Huihui LI, Dinggui ZENG, Jiefang DENG
  • Publication number: 20230061322
    Abstract: A method for manufacturing a semiconductor structure includes the following: providing a substrate; forming an MTJ structure and a first mask structure in sequence on the substrate; performing a patterning process on the first mask structure to form a first pattern extending in a first direction; transferring the first pattern to the MTJ structure; forming a second mask structure on the MTJ structure; performing a patterning process on the second mask structure to form a second pattern extending in a second direction, the first direction intersecting the second direction and being not perpendicular to the second direction; and performing a patterning process on the MTJ structure by utilizing the second pattern to form a cellular MTJ array, the first pattern and the second pattern together forming a cellular pattern.
    Type: Application
    Filed: June 1, 2022
    Publication date: March 2, 2023
    Applicants: CHANGXIN MEMORY TECHNOLOGIES, INC., BEIJING SUPERSTRING ACADEMY OF MEMORY TECHNOLOGY
    Inventors: Xiaoguang WANG, Huihui LI, DINGGUI ZENG, Jiefang DENG, Kanyu CAO
  • Publication number: 20230065326
    Abstract: The present application relates to a memory device and a preparing method thereof. The memory device includes: a substrate, and a plurality of memory cells disposed in an array on the substrate. Memory cells in adjacent rows are staggered in a row direction, and a distance between two adjacent memory cells in any row is a first distance. Memory cells in adjacent columns are staggered in a column direction, and a staggered distance is less than the first distance.
    Type: Application
    Filed: June 23, 2022
    Publication date: March 2, 2023
    Inventors: Xiaoguang WANG, Dinggui Zeng, Huihui Li, Kanyu Cao
  • Publication number: 20230068461
    Abstract: Embodiments of the present disclosure provide a semiconductor structure and a manufacturing method thereof, and a memory. The semiconductor structure may at least include: a plurality of transistors arranged in a staggered manner, wherein the transistors share one source plate, a channel of the transistor is located on the source plate, and a channel length direction of the transistor is perpendicular to a surface of the source plate, and a material of the channel includes an oxide semiconductor; a plurality of drain contact members, electrically connected to drains of the transistors, wherein an odd number of transistors share one drain contact member, and the transistors sharing the same drain contact member are driven by a same word line; and a plurality of magnetic tunnel junctions, located on the drain contact members, wherein the magnetic tunnel junctions are electrically connected to the drain contact members in a one-to-one corresponding manner.
    Type: Application
    Filed: July 14, 2022
    Publication date: March 2, 2023
    Inventors: Xiaoguang Wang, Dinggui Zeng, Huihui Li, Kanyu Cao
  • Publication number: 20230066016
    Abstract: The present disclosure provides a semiconductor structure and a manufacturing method thereof. The semiconductor structure includes: a plurality of memory cells alternately arranged on a substrate, the memory cell including an odd number of vertical transistors, a connection pad connected to one end of each of the odd number of vertical transistors, and a magnetic tunnel junction located on the connection pad; wherein a material of a channel of the vertical transistor includes a monocrystalline semiconductor.
    Type: Application
    Filed: June 23, 2022
    Publication date: March 2, 2023
    Inventors: Xiaoguang WANG, Dinggui ZENG, Huihui LI, Kanyu CAO
  • Publication number: 20230015891
    Abstract: A camera module includes a body and a cover, which are matched to form a sealed cavity; an image sensor and a micro-lens array, which are disposed in the sealed cavity; and an optical matching medium, filling the sealed cavity. The cover includes an objective lens, the center line of the image sensor is coincident with the optical axis of the objective lens, the micro-lens array is located between the image sensor and the objective lens, the optical matching medium is disposed between the objective lens and the micro-lens array, and the refractive index of the optical matching medium is greater than that of air.
    Type: Application
    Filed: September 29, 2022
    Publication date: January 19, 2023
    Inventor: Kanyu Cao
  • Publication number: 20220270653
    Abstract: A sense amplifier circuit, memory device and related operation methods are provided. The sense amplifier circuit includes an amplification circuit for amplifying a voltage signal and a compensation circuit coupled to the amplification circuit. The amplification circuit includes a first inverting amplifier and a second inverting amplifier cross-coupled with each other, with the first inverting amplifier connected to a first bitline and the second inverting amplifier connected to a second bitline. The compensation circuit includes a first, a second, a third, and a fourth switch circuits, and is configured to generate a compensation voltage between the first bitline and the second bitline by conducting charge injections through operating the switch circuits to compensate an input-referred offset voltage of the amplification circuit.
    Type: Application
    Filed: May 11, 2022
    Publication date: August 25, 2022
    Inventors: Kanyu CAO, Weibing Shang
  • Patent number: 11423957
    Abstract: The present disclosure provides a sense amplifier, a memory, and a method for controlling a sense amplifier, relating to the technical field of semiconductor memories. The sense amplifier comprises: an amplification module; and a control module, electrically connected to the amplification module; wherein, in an offset compensation stage of the sense amplifier, the control module is used to configure the amplification module to comprise a diode structure, a current mirror structure, and an inverter with an input and an output connected together; and in a first amplification stage of the sense amplifier, the control module is used to configure the amplification module as an inverter. The present disclosure can realize the offset compensation of the sense amplifier, thereby improving the performance of semiconductor memories.
    Type: Grant
    Filed: December 25, 2020
    Date of Patent: August 23, 2022
    Assignees: ANHUI UNIVERSITY, CHANGXIN MEMORY TECHNOLOGIES, INC.
    Inventors: Chunyu Peng, Junlin Ge, Jun He, Zhan Ying, Xin Li, Kanyu Cao, Wenjuan Lu, Zhiting Lin, Xiulong Wu, Junning Chen
  • Patent number: 11423956
    Abstract: The present invention provides a sensitivity amplifier, its control method, a memory read-write circuit and a memory device. The sensitivity amplifier includes: a first PMOS transistor and a second PMOS transistor, a first NMOS transistor and a second NMOS transistor, a first input/output terminal, and a second input/output terminal; four switch unit, the first PMOS and the first NMOS transistors are respectively connected to the first input/output terminal through one switch unit, the second PMOS and the second NMOS transistors are respectively connected to the second input/output terminal through another switch unit. The switch units configure each PMOS transistor and each NMOS transistor in an amplifier mode or in a diode mode. The first NMOS transistor's gate connects to the bit line, and the second NMOS transistor's gate connects to the reference bit line. The disclosed sensitivity amplifier has improved performance.
    Type: Grant
    Filed: November 27, 2019
    Date of Patent: August 23, 2022
    Assignee: CHANGXIN MEMORY TECHNOLOGIES, INC.
    Inventors: WeiBing Shang, KanYu Cao
  • Publication number: 20220208235
    Abstract: The present disclosure provides a sense amplifier, a memory, and a method for controlling a sense amplifier, relating to the technical field of semiconductor memories. The sense amplifier comprises: an amplification module; and a control module, electrically connected to the amplification module; wherein, in an offset compensation stage of the sense amplifier, the control module is used to configure the amplification module to comprise a diode structure, a current mirror structure, and an inverter with an input and an output connected together; and in a first amplification stage of the sense amplifier, the control module is used to configure the amplification module as an inverter. The present disclosure can realize the offset compensation of the sense amplifier, thereby improving the performance of semiconductor memories.
    Type: Application
    Filed: December 25, 2020
    Publication date: June 30, 2022
    Inventors: Chunyu PENG, Junlin GE, Jun HE, Zhan YING, Xin LI, Kanyu CAO, Wenjuan LU, Zhiting LIN, Xiulong WU, Junning CHEN
  • Patent number: 11315610
    Abstract: The present disclosure provides a sense amplifier, a memory, and a method for controlling a sense amplifier, relating to the technical field of semiconductor memories. The sense amplifier comprises: an amplification module, configured to read data in a storage unit on a bit line or a storage unit on a reference bit line; and a first switch module, configured to control the amplification module to be disconnected from the reference bit line when the sense amplifier reads a first state for the bit line and the sense amplifier is in an amplification stage, and control the amplification module to be connected to the reference bit line when the sense amplifier reads a second state for the bit line and the sense amplifier is in the amplification stage. The present disclosure can reduce the power consumption of the sense amplifier.
    Type: Grant
    Filed: December 25, 2020
    Date of Patent: April 26, 2022
    Assignees: CHANGXIN MEMORY TECHNOLOGIES, INC., ANHUI UNIVERSITY
    Inventors: Chunyu Peng, Zijian Wang, Wenjuan Lu, Xiulong Wu, Jun He, Xin Li, Zhan Ying, Kanyu Cao, Zhiting Lin, Junning Chen
  • Publication number: 20220068323
    Abstract: A sense amplifier, a memory and a method for controlling the sense amplifier are provided. The sense amplifier includes: an amplification module configured to read data in a storage unit on a first or second bit line; a control module electrically connected to the amplification module. When data in the storage unit on the first bit line is read, in a first amplification phase of the sense amplifier, the control module configures the amplification module to include a first current mirror structure and connects a mirror terminal of the first current mirror structure to the second bit line; when data in the storage unit on the second bit line is read, in the first amplification phase of the sense amplifier, the control module configures the amplification module to include a second current mirror structure and connects a mirror terminal of the second current mirror structure to the first bit line.
    Type: Application
    Filed: September 14, 2021
    Publication date: March 3, 2022
    Inventors: Zhiting Lin, Jianqing Li, Jun He, Zhan Ying, Xin Li, Kanyu Cao, Wenjuan Lu, Chunyu Peng, Xiulong Wu, Junning Chen
  • Publication number: 20220068357
    Abstract: A sense amplifier, a memory and a method for controlling the sense amplifier are provided. The sense amplifier includes: an amplification module, arranged to read data in a memory cell; and a control module, electrically connected to the amplification module. In a first offset compensation stage of the sense amplifier, the control module is arranged to configure the amplification module to include a first inverter and a second inverter, and each of the first inverter and the second inverter is an inverter an input terminal and an output terminal connected to each other; and in a second offset compensation stage of the sense amplifier, the control module is arranged to configure the amplification module to include a current mirror structure.
    Type: Application
    Filed: September 10, 2021
    Publication date: March 3, 2022
    Inventors: Zhiting LIN, Guanglei Wen, Jun He, Zhan Ying, Xin Li, Kanyu Cao, Wenjuan Lu, Chunyu Peng, Xiulong Wu, Junning Chen
  • Publication number: 20220051713
    Abstract: A sense amplifier includes an amplification module and a control module electrically connected to the amplification module. Herein, in a case of reading a data in a memory cell on a first bit line, at an offset compensation stage of the sense amplifier, the control module is arranged to configure the amplification module to include a first diode structure, a first current mirror structure, and a first inverter with an input terminal and an output terminal connected to each other. In a case of reading a data in a memory cell on a second bit line, at the offset compensation stage of the sense amplifier, the control module is arranged to configure the amplification module to include a second diode structure, a second current mirror structure, and a second inverter with an input terminal and an output terminal connected to each other.
    Type: Application
    Filed: September 14, 2021
    Publication date: February 17, 2022
    Inventors: Wenjuan LU, Junlin GE, Jun HE, Zhan YING, Xin LI, Kanyu CAO, Chunyu PENG, Zhiting LIN, Xiulong WU, Junning CHEN
  • Publication number: 20220028436
    Abstract: A sense amplifier includes: an amplification circuit, configured to read data of a memory cell on a first bit line or a second bit line; and a first offset voltage storage cell and a second offset voltage storage cell, respectively and electrically connected to the amplification circuit, wherein in a case where the data in the memory cell on the first bit line is read, in an offset elimination stage of the sense amplifier, the sense amplifier is configured to store an offset voltage of the sense amplifier in the first offset voltage storage cell; and in a case where the data in the memory cell on the second bit line is read, in the offset elimination stage of the sense amplifier, the sense amplifier is configured to store the offset voltage of the sense amplifier in the second offset voltage storage cell.
    Type: Application
    Filed: September 13, 2021
    Publication date: January 27, 2022
    Inventors: Wenjuan Lu, Yangkuo Zhao, Jun He, Xin Li, Zhan Ying, Kanyu Cao, Chunyu Peng, Xiulong Wu, Zhiting Lin, Junning Chen