Patents Assigned to CHANGXIN MEMORY TECHNOLOGIES, INC.
  • Patent number: 12225718
    Abstract: A semiconductor structure and a method for forming a semiconductor structure are provided. The semiconductor structure includes: a substrate; a laminate structure arranged on the substrate and including first semiconductor layers spaced apart from each other in a direction perpendicular to a top surface of the substrate, each first semiconductor layer including channel areas spaced apart from each other in a first direction, and first doped areas and second doped areas, each first doped area being arranged on one side of a respective one of the channel areas in a second direction, each second doped area being arranged on another side of the respective one of the channel areas in the second direction; and a word line structure including word lines extending in the first direction, an edge of each word line being flush with an edge of a respective one of the channel areas in the second direction.
    Type: Grant
    Filed: August 4, 2022
    Date of Patent: February 11, 2025
    Assignee: CHANGXIN MEMORY TECHNOLOGIES, INC.
    Inventors: Guangsu Shao, Deyuan Xiao, Yunsong Qiu, Xingsong Su
  • Patent number: 12225708
    Abstract: The present disclosure provides a semiconductor device, a method of manufacturing a semiconductor device and an electronic device. The method of manufacturing a semiconductor device includes: forming word line trenches on a semiconductor substrate, forming a word line structure in each of the word line trenches, and finally forming active regions. The word line trenches pass through the semiconductor substrate without passing through other material.
    Type: Grant
    Filed: February 16, 2022
    Date of Patent: February 11, 2025
    Assignee: CHANGXIN MEMORY TECHNOLOGIES, INC.
    Inventor: Jingwen Lu
  • Patent number: 12218033
    Abstract: A semiconductor structure includes: a substrate and a dielectric layer, in which the substrate has a front surface and a back surface which are oppositely arranged, and the dielectric layer is formed on the front surface; a connecting hole, penetrating through the substrate and extending to the dielectric layer; an insulating layer, located on the surface of the inner wall of the connecting hole; and a connecting structure, comprising a first barrier layer, a second barrier layer and a conductive structure, in which the first barrier layer is located on a surface of the insulating layer, the second barrier layer is located between the first barrier layer and the conductive structure, and an air gap exists between the second barrier layer and the first barrier layer.
    Type: Grant
    Filed: January 25, 2022
    Date of Patent: February 4, 2025
    Assignee: CHANGXIN MEMORY TECHNOLOGIES, INC.
    Inventor: Luguang Wang
  • Patent number: 12218034
    Abstract: A semiconductor structure includes a base, a conductive pillar at least located in the base, connecting structures and an electrical connection layer. At least one connecting structure is electrically connected to an end of the conductive pillar, the material of the connecting structure is different from that of the conductive pillar, and a total area of an orthographic projection of the connecting structure on the base is less than an area of an orthographic projection of the conductive pillar on the base. The electrical connection layer is electrically connected to an end of the connecting structure distal from the conductive pillar.
    Type: Grant
    Filed: February 10, 2022
    Date of Patent: February 4, 2025
    Assignee: CHANGXIN MEMORY TECHNOLOGIES, INC.
    Inventor: Ping-Heng Wu
  • Patent number: 12219754
    Abstract: Embodiments of the present application relate to the field of semiconductors, and provide a manufacturing method of a semiconductor structure and a structure thereof. The method of manufacturing a semiconductor structure includes: providing a substrate, active regions and an isolation structure; patterning the active regions and the isolation structure to form a word line trench, sidewalls of the word line trench exposing the active regions and the isolation structure; performing corner rounding at least once on the active regions and the isolation structure exposed by the sidewalls of the word line trench, such that a first height difference is formed between remaining active regions and the isolation structure, wherein the corner rounding includes: etching the isolation structure exposed by the sidewalls of the word line trench, such that a first thickness of the active regions are exposed by the isolation structure.
    Type: Grant
    Filed: April 25, 2022
    Date of Patent: February 4, 2025
    Assignee: CHANGXIN MEMORY TECHNOLOGIES, INC.
    Inventor: Jingwen Lu
  • Patent number: 12218125
    Abstract: The present disclosure relates to the technical field of semiconductors, and provides an electro-static discharge (ESD) protection structure and a chip. The ESD protection structure includes: a semiconductor substrate, a first P-type well, a first N-type well, a first N-type doped portion, a first P-type doped portion, a second N-type doped portion, a second P-type doped portion, a third doped well, a third P-type doped portion and a third N-type doped portion, wherein the first P-type well, the first N-type well and the third doped well are located in the semiconductor substrate; the first N-type doped portion and the first P-type doped portion are located in the first N-type well and spaced apart; the second N-type doped portion and the second P-type doped portion are located in the first P-type well and spaced apart.
    Type: Grant
    Filed: April 7, 2022
    Date of Patent: February 4, 2025
    Assignee: CHANGXIN MEMORY TECHNOLOGIES, INC.
    Inventor: Qian Xu
  • Patent number: 12217789
    Abstract: Embodiments of the disclosure provide a control amplification circuit, a sensitive amplifier and a semiconductor memory. The control amplification circuit includes: a power consumption control circuit, configured to receive a power consumption control signal and output a first reference signal according to the power consumption control signal; an isolating circuit, configured to determine a control instruction signal and generate an isolation control signal according to the control instruction signal; and an amplification circuit, configured to receive the first reference signal, the isolation control signal and a signal to be processed, and process the signal to be processed based on the first reference signal and the isolation control signal to obtain a target amplified signal.
    Type: Grant
    Filed: June 20, 2022
    Date of Patent: February 4, 2025
    Assignee: CHANGXIN MEMORY TECHNOLOGIES, INC.
    Inventors: Daoxun Wu, Weibing Shang
  • Patent number: 12216979
    Abstract: A method for correcting a mask patter includes: acquiring an initial pattern of a mask, the initial pattern including a scribe line area and die areas which are spaced, and the scribe line area is located between two adjacent die areas, each of the die areas includes at least one die sub-area and at least one first sub-test element group (TEG) area, and the scribe line area includes scribe line sub-areas and second sub-TEG areas, the first sub-TEG area and the second sub-TEG area are adjacent to each other, and the first sub-TEG area and the second sub-TEG area constitute a TEG area; performing an optical proximity correction (OPC) on an area of the initial pattern excluding TEG areas, so as to acquire a final pattern.
    Type: Grant
    Filed: January 11, 2022
    Date of Patent: February 4, 2025
    Assignee: CHANGXIN MEMORY TECHNOLOGIES, INC.
    Inventor: Shuping Li
  • Patent number: 12218073
    Abstract: The present disclosure relates to a semiconductor mark and a forming method thereof. The semiconductor mark comprises: a previous layer mark comprising first patterns and at least one second pattern, the second pattern being located between adjacent first patterns, the first pattern being different from the second pattern in material property. Since the first pattern and the second pattern in the previous layer mark in the semiconductor mark according to the present disclosure are different in material property, during measurement, the first pattern and the second pattern are different in reflectivity for measurement light. Thus, the contrast of images of the first pattern and the second pattern obtained during measurement is improved, the positions and boundaries of the first pattern and the second pattern are clearly determined, and the measurement of the previous layer mark is more accurate.
    Type: Grant
    Filed: March 9, 2021
    Date of Patent: February 4, 2025
    Assignee: CHANGXIN MEMORY TECHNOLOGIES, INC.
    Inventor: Shengan Zhang
  • Patent number: 12219752
    Abstract: The present disclosure provides a method of manufacturing a semiconductor structure and a semiconductor structure. The method includes: providing a base and forming, on the base, a bit line contact region provided with a first groove; forming a first bit line contact layer in the first groove, wherein the first bit line contact layer in the first groove defines a second groove; forming a diffusion layer in the second groove, wherein the diffusion layer in the second groove defines a third groove; forming, in the third groove, a second bit line contact layer provided with a gap; and processing the diffusion layer.
    Type: Grant
    Filed: January 24, 2022
    Date of Patent: February 4, 2025
    Assignee: CHANGXIN MEMORY TECHNOLOGIES, INC.
    Inventors: Cheng Chen, Hai-Han Hung, Chun-Chieh Huang, Xiaoling Wang
  • Patent number: 12218183
    Abstract: The present disclosure provides a method for manufacturing a semiconductor structure and a semiconductor structure. The method for manufacturing a semiconductor structure includes: forming a plurality of capacitor holes on a substrate, and exposing a part of the substrate on bottoms of the capacitor holes; forming a bottom electrode layer on surfaces of the capacitor holes; forming, on a surface of the bottom electrode layer, a dielectric layer continuously covering the surface of the bottom electrode layer; forming a first top electrode layer to continuously cover a surface of the dielectric layer by a first film forming process; by a second film forming process, forming, in a circumferential direction of the capacitor holes, a second top electrode layer continuously covering a surface of the first top electrode layer, and forming, in an axial direction of the capacitor holes.
    Type: Grant
    Filed: January 11, 2022
    Date of Patent: February 4, 2025
    Assignee: CHANGXIN MEMORY TECHNOLOGIES, INC.
    Inventor: Yulei Wu
  • Patent number: 12218016
    Abstract: A semiconductor structure is provided with a test region. In test region, the semiconductor structure includes a semiconductor substrate, a plurality of bit line contact structures arranged on semiconductor substrate and a plurality of wire groups. The semiconductor structure is provided with a plurality of separate active regions extending along a first direction. In first direction, each active region is electrically connected to two bit line contact structures. The plurality of wire groups are arranged along a second direction. Each wire group includes a plurality of wires extending along a third direction. In third direction, each of two bit line contact structures for each active region is connected to respective one of two bit line contact structures for active region adjacent to said each active region by a respective one of wires, so that two wire groups of the wire groups cooperate with each other to form a conductive path.
    Type: Grant
    Filed: September 20, 2021
    Date of Patent: February 4, 2025
    Assignee: CHANGXIN MEMORY TECHNOLOGIES, INC.
    Inventors: Chen Huang, Meng-Feng Tsai, Yuejiao Shu
  • Patent number: 12218032
    Abstract: A semiconductor apparatus includes a substrate and a through silicon via (TSV) structure; a groove is disposed on the substrate; the TSV structure is disposed on the substrate; and a first end of the TSV structure is exposed in the groove, and a distance between an end surface of the first end and a bottom wall of the groove is smaller than the depth of the groove. The first end of the TSV structure is exposed so as to facilitate heat dissipation; the distance between the end surface of the first end and the bottom wall of the groove is smaller than the depth of the groove, i.e., the first end of the TSV structure is sunken in the groove, and other structures will not be affected.
    Type: Grant
    Filed: January 17, 2022
    Date of Patent: February 4, 2025
    Assignee: CHANGXIN MEMORY TECHNOLOGIES, INC.
    Inventor: Ping-Heng Wu
  • Patent number: 12219046
    Abstract: A method for pushing a key includes the following steps: setting a plurality of keys, each of which corresponds to a different encrypted environment; configuring a user terminal with an environment switching interface for selection of an encrypted environment; and pushing a corresponding key to the user terminal according to a received key acquisition request.
    Type: Grant
    Filed: June 15, 2022
    Date of Patent: February 4, 2025
    Assignee: CHANGXIN MEMORY TECHNOLOGIES, INC.
    Inventors: Zhen Wang, Yue Shen, Zhongwen Fan
  • Patent number: 12216917
    Abstract: The present disclosure provides a data processing circuit and method, and a semiconductor memory, relating to the field of storage technologies. The circuit includes: a data selection module configured to receive and output write data if a received write control command is in a first level state, and receive and output read data if a received read control command is in the first level state; a check module configured to receive the write data or the read data, check the write data or the read data, and obtain write check data or read check data, and output the write check data or the read check data; and a data output module configured to receive the write check data or the read check data, output the write check data if the write control command is in the first level state.
    Type: Grant
    Filed: January 11, 2023
    Date of Patent: February 4, 2025
    Assignee: CHANGXIN MEMORY TECHNOLOGIES, INC.
    Inventor: Tao Du
  • Patent number: 12218126
    Abstract: The present disclosure provides an electrostatic discharge (ESD) protection structure, an ESD protection circuit, and a chip. The ESD protection structure includes a semiconductor substrate, a first N-type well, a first P-type well, a first N-type doped portion, a first P-type doped portion, a second N-type doped portion, and a second P-type doped portion. The semiconductor substrate includes a first integrated region. The first N-type well is located in the first integrated region. The first P-type well is located in the first integrated region. The first N-type doped portion is located in the first N-type well. The first P-type doped portion is located in the first N-type well. The second N-type doped portion is located in the first P-type well. The second P-type doped portion is located on a side of the second N-type doped portion away from the first N-type well.
    Type: Grant
    Filed: October 21, 2021
    Date of Patent: February 4, 2025
    Assignee: CHANGXIN MEMORY TECHNOLOGIES, INC.
    Inventor: Qian Xu
  • Patent number: 12217820
    Abstract: A counter circuit includes an addition circuit including counting circuits corresponding to binary bits, a subtraction circuit and control circuits. Each counting circuit obtains a carry signal and this-time bit value according to addend signal and bit value currently output by the counting circuit, outputs the carry signal to next counting circuit, and latches the this-time bit value in response to first clock and outputs same to output terminal of the counting circuit in response to second clock. The subtraction circuit is connected to the counting circuits, obtains present subtraction counting result according to present addition counting result and subtrahend signal and outputs same in response to a first refresh instruction. Each control circuit corresponds to a counting circuit, outputs, in response to second refresh instruction, corresponding bit of the present subtraction counting result to the counting circuit to serve as the bit value output by the counting circuit.
    Type: Grant
    Filed: January 18, 2023
    Date of Patent: February 4, 2025
    Assignee: CHANGXIN MEMORY TECHNOLOGIES, INC.
    Inventor: Yinchuan Gu
  • Patent number: 12217818
    Abstract: A bias generation circuit and a memory circuit are provided. The bias generation circuit includes: a first load circuit coupled between a working voltage and an regulating node; a bias circuit configured to receive the working voltage and output a bias voltage according to the working voltage; a voltage stabilizing circuit coupled to an output end of the bias circuit and configured to receive a reference voltage and regulate a voltage of the regulating node according to the bias voltage and the reference voltage; and a second load circuit having one end coupled to the output end of the bias circuit and the other end coupled to the regulating node.
    Type: Grant
    Filed: January 16, 2023
    Date of Patent: February 4, 2025
    Assignee: CHANGXIN MEMORY TECHNOLOGIES, INC.
    Inventor: Zhonglai Liu
  • Patent number: 12218220
    Abstract: The present disclosure provides a semiconductor structure and a manufacturing method thereof. The manufacturing method includes: depositing a thin-film stacked structure on a substrate; forming a first hole in the thin-film stacked structure; growing an epitaxial silicon pillar in the first hole; etching the thin-film stacked structure and the epitaxial silicon pillar along a first direction to form a first trench, the first trench passing through a center of the epitaxial silicon pillar and dividing the epitaxial silicon pillar into a first half pillar and a second half pillar; forming a first isolation layer; forming a first channel region of a first doping type, and forming a second channel region of a second doping type; and forming a gate dielectric layer and a gate conductive layer on a surface of each of the first channel region and the second channel region.
    Type: Grant
    Filed: April 29, 2022
    Date of Patent: February 4, 2025
    Assignee: CHANGXIN MEMORY TECHNOLOGIES, INC.
    Inventors: Shuai Guo, Mingguang Zuo, Shijie Bai
  • Patent number: 12218673
    Abstract: A comparator circuit includes a first transistor, a second transistor, a load circuit, a first adjustment circuit and a second adjustment circuit. A terminal of the first transistor is coupled to a first node, another terminal of the first transistor is coupled to a first control node, and a gate of the first transistor is configured to receive a first control signal. A terminal of the second transistor is coupled to the first node, another terminal of the second transistor is coupled to a second control node, and a gate of the second transistor is configured to receive a second control signal. A terminal of the load circuit is coupled to a second node, and another terminal of the load circuit is coupled to the first control node and the second control node.
    Type: Grant
    Filed: August 27, 2022
    Date of Patent: February 4, 2025
    Assignee: CHANGXIN MEMORY TECHNOLOGIES, INC.
    Inventors: Kai Tian, Ling Zhu