Patents by Inventor Lan GUO

Lan GUO 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: 11889686
    Abstract: Aspects of the disclosure provide a method for fabricating semiconductor device. The method includes characterizing an etch process that is used to etch channel holes and dummy channel holes in a stack of alternating sacrificial gate layers and insulating layers upon a substrate of a semiconductor device. The channel holes are in a core region and the dummy channel holes are in a staircase region. The stack of alternating sacrificial gate layers and insulating layers extend from the core region into in the staircase region of a stair-step form. The method further includes determining a first shape for defining the dummy channel holes in a layout based on the characterization of the etch process. The first shape is different from a second shape for defining the channel holes.
    Type: Grant
    Filed: September 7, 2021
    Date of Patent: January 30, 2024
    Assignee: YANGTZE MEMORY TECHNOLOGIES CO., LTD.
    Inventors: Miao Shen, Li Hong Xiao, Yushi Hu, Qian Tao, Mei Lan Guo, Yong Zhang, Jian Hua Sun
  • Publication number: 20240032293
    Abstract: In certain aspects, a semiconductor device includes a substrate, a stack structure over the substrate and including interleaved conductive layers and dielectric layers, and a connection structure extending through the stack structure into the substrate. The connection structure includes a conductor layer and a spacer over a sidewall of the conductor layer. The conductor layer of the connection structure is in direct contact with the substrate.
    Type: Application
    Filed: September 28, 2023
    Publication date: January 25, 2024
    Inventors: Mei Lan Guo, Yushi Hu, Ji Xia, Hongbin Zhu
  • Publication number: 20230255025
    Abstract: In certain aspects, a semiconductor device includes a substrate, a stack structure over the substrate and including interleaved conductive layers and dielectric layers, and a connection structure extending through the stack structure into the substrate. The connection structure includes a conductor layer and a spacer over a sidewall of the conductor layer. The conductor layer of the connection structure is in direct contact with the substrate.
    Type: Application
    Filed: April 18, 2023
    Publication date: August 10, 2023
    Inventors: Mei Lan Guo, Yushi Hu, Ji Xia, Hongbin Zhu
  • Patent number: 11690219
    Abstract: In certain aspects, a three-dimensional (3D) memory device includes a memory stack including interleaved conductive layers and dielectric layers, a channel structure extending through the memory stack, and a through array contact (TAC) extending through the memory stack. Edges of the conductive layers along a sidewall of the TAC are recessed. The TAC includes a conductor layer and a spacer over the sidewall of the TAC.
    Type: Grant
    Filed: May 27, 2021
    Date of Patent: June 27, 2023
    Assignee: YANGTZE MEMORY TECHNOLOGIES CO., LTD.
    Inventors: Mei Lan Guo, Yushi Hu, Ji Xia, Hongbin Zhu
  • Publication number: 20230106465
    Abstract: A method of providing a treatment to a patient having non-small cell lung cancer is provided comprising extracting total RNA from a formalin fixed and paraffin embedded tumor of non-small cell lung cancer of a patient after the surgical resection, generating complementary DNA (cDNA) of the extracted total RNA from the patient's tumor, quantifying of mRNA expression of 7 genes of ABCC4 (SEQ ID NO:1), CCL19 (SEQ ID NO:2), SLC39A8 (SEQ ID NO:3), CD27 (SEQ ID NO:4), FUT7 (SEQ ID NO:5), ZNF71 (SEQ ID NO:6), and DAG1 (SEQ ID NO:7), normalizing of the quantification of the 7 genes with the quantification of a control gene UBC (SEQ ID NO:8) or a housekeeping gene, and utilizing the normalized 7 gene mRNA expression quantification to determine whether the patient will benefit from receiving adjuvant chemotherapy or not.
    Type: Application
    Filed: March 19, 2020
    Publication date: April 6, 2023
    Inventor: Nancy Lan Guo
  • Patent number: 11581322
    Abstract: Embodiments of three-dimensional (3D) memory devices having through array contacts (TACs) and methods for forming the same are disclosed. In an example, a 3D memory device includes a substrate, a memory stack on the substrate comprising a plurality of conductor/dielectric layer pairs, a channel structure extending vertically through the conductor/dielectric layer pairs in the memory stack, a TAC extending vertically through the conductor/dielectric layer pairs in the memory stack, and a dummy channel structure filled with a dielectric layer and extending vertically through the conductor/dielectric layer pairs in the memory stack.
    Type: Grant
    Filed: November 21, 2020
    Date of Patent: February 14, 2023
    Assignee: YANGTZE MEMORY TECHNOLOGIES CO., LTD.
    Inventors: Mei Lan Guo, Yushi Hu, Ji Xia, Hongbin Zhu
  • Patent number: 11532636
    Abstract: Embodiments of three-dimensional (3D) memory devices having through array contacts (TACs) and methods for forming the same are disclosed. In an example, a method for forming a 3D memory device is disclosed. A dielectric stack including interleaved a plurality of dielectric layers and a plurality of sacrificial layers is formed above a substrate. A channel structure extending vertically through the dielectric stack is formed. A first opening extending vertically through the dielectric stack is formed. A spacer is formed in a plurality of shallow recesses and on a sidewall of the first opening. The plurality of shallow recesses abut the sidewall of the first opening. A TAC extending vertically through the dielectric stack is formed by depositing a conductor layer in contact with the spacer in the first opening. A slit extending vertically through the dielectric stack is formed.
    Type: Grant
    Filed: November 30, 2020
    Date of Patent: December 20, 2022
    Assignee: YANGTZE MEMORY TECHNOLOGIES CO., LTD.
    Inventors: Mei Lan Guo, Yushi Hu, Ji Xia, Hongbin Zhu
  • Publication number: 20220375609
    Abstract: Disclosed herein are classifier models, computer implemented systems, machine learning systems and methods thereof for classifying clinical variants of unknown or uncertain significance into a pathogenicity category using measured phenotype features extracted from phenotype assays of transgenic organism expressing the human clinical variant. Embodiments of the present invention relate generally to methods for generating classifier models using machine learning and use of those classifier models to predict the pathogenicity of a clinical variant for a specific human disease (e.g. genetic disease), assigning a patient clinical variant to a pathogenicity category (e.g. pathogenic or benign) for the specific human disease to determine whether that patient should be followed up with additional, more invasive diagnostic testing, or treatment.
    Type: Application
    Filed: October 15, 2020
    Publication date: November 24, 2022
    Applicant: NemaMetrix, Inc.
    Inventors: Lan Guo, Stephen Turner, Trisha Brock, Chris HOPKINS
  • Publication number: 20210408026
    Abstract: Aspects of the disclosure provide a method for fabricating semiconductor device. The method includes characterizing an etch process that is used to etch channel holes and dummy channel holes in a stack of alternating sacrificial gate layers and insulating layers upon a substrate of a semiconductor device. The channel holes are in a core region and the dummy channel holes are in a staircase region. The stack of alternating sacrificial gate layers and insulating layers extend from the core region into in the staircase region of a stair-step form. The method further includes determining a first shape for defining the dummy channel holes in a layout based on the characterization of the etch process. The first shape is different from a second shape for defining the channel holes.
    Type: Application
    Filed: September 7, 2021
    Publication date: December 30, 2021
    Applicant: YANGTZE MEMORY TECHNOLOGIES CO., LTD.
    Inventors: Miao SHEN, Li Hong XIAO, Yushi HU, Qian TAO, Mei Lan GUO, Yong ZHANG, Jian Hua SUN
  • Publication number: 20210296333
    Abstract: In certain aspects, a three-dimensional (3D) memory device includes a memory stack including interleaved conductive layers and dielectric layers, a channel structure extending through the memory stack, and a through array contact (TAC) extending through the memory stack. Edges of the conductive layers along a sidewall of the TAC are recessed. The TAC includes a conductor layer and a spacer over the sidewall of the TAC.
    Type: Application
    Filed: May 27, 2021
    Publication date: September 23, 2021
    Inventors: Mei Lan Guo, Yushi Hu, Ji Xia, Hongbin Zhu
  • Publication number: 20210254173
    Abstract: A method of providing a treatment to a patient having non-small cell lung cancer is provided comprising extracting total RNA from a tumor of non-small cell lung cancer of a patient after the surgical resection, generating complementary DNA (cDNA) of the extracted total RNA from the patients tumor, quantifying of mRNA expression of 7 genes of ABCC4 (SEQ ID NO:1), CCL19 (SEQ ID NO:2), SLC39A8 (SEQ ID NO:3), CD27 (SEQ ID NO:4), FUT7 (SEQ ID NO:5), ZNF71 (SEQ ID NO:6), and DAG1 (SEQ ID NO:7), normalizing of the quantification of the 7 genes with the quantification of a control gene UBC (SEQ ID NO:8), and utilizing the normalized 7 gene mRNA expression quantification to determine whether the patient will benefit from receiving adjuvant chemotherapy or not.
    Type: Application
    Filed: June 13, 2019
    Publication date: August 19, 2021
    Inventor: Nancy Lan Guo
  • Patent number: 11049866
    Abstract: Embodiments of three-dimensional (3D) memory devices having through array contacts (TACs) and methods for forming the same are disclosed. In an example, a method for forming a 3D memory device is disclosed. A dielectric stack including a plurality of dielectric/sacrificial layer pairs is formed on a substrate. A channel structure extending vertically through the dielectric stack is formed. A first opening extending vertically through the dielectric stack is formed. A spacer is formed on a sidewall of the first opening. A TAC extending vertically through the dielectric stack is formed by depositing a conductor layer in contact with the spacer in the first opening. A slit extending vertically through the dielectric stack is formed after forming the TAC. A memory stack including a plurality of conductor/dielectric layer pairs is formed on the substrate by replacing, through the slit, the sacrificial layers in the dielectric/sacrificial layer pairs with a plurality of conductor layers.
    Type: Grant
    Filed: January 17, 2020
    Date of Patent: June 29, 2021
    Assignee: YANGTZE MEMORY TECHNOLOGIES CO., LTD.
    Inventors: Mei Lan Guo, Yushi Hu, Ji Xia, Hongbin Zhu
  • Publication number: 20210104531
    Abstract: Embodiments of three-dimensional (3D) memory devices having through array contacts (TACs) and methods for forming the same are disclosed. In an example, a 3D memory device includes a substrate, a memory stack on the substrate comprising a plurality of conductor/dielectric layer pairs, a channel structure extending vertically through the conductor/dielectric layer pairs in the memory stack, a TAC extending vertically through the conductor/dielectric layer pairs in the memory stack, and a dummy channel structure filled with a dielectric layer and extending vertically through the conductor/dielectric layer pairs in the memory stack.
    Type: Application
    Filed: November 21, 2020
    Publication date: April 8, 2021
    Inventors: Mei Lan Guo, Yushi Hu, Ji Xia, Hongbin Zhu
  • Publication number: 20210082931
    Abstract: Embodiments of three-dimensional (3D) memory devices having through array contacts (TACs) and methods for forming the same are disclosed. In an example, a method for forming a 3D memory device is disclosed. A dielectric stack including interleaved a plurality of dielectric layers and a plurality of sacrificial layers is formed above a substrate. A channel structure extending vertically through the dielectric stack is formed. A first opening extending vertically through the dielectric stack is formed. A spacer is formed in a plurality of shallow recesses and on a sidewall of the first opening. The plurality of shallow recesses abut the sidewall of the first opening. A TAC extending vertically through the dielectric stack is formed by depositing a conductor layer in contact with the spacer in the first opening. A slit extending vertically through the dielectric stack is formed.
    Type: Application
    Filed: November 30, 2020
    Publication date: March 18, 2021
    Inventors: Mei Lan Guo, Yushi Hu, Ji Xia, Hongbin Zhu
  • Patent number: 10937806
    Abstract: Embodiments of interconnect structures of a three-dimensional (3D) memory device and method for forming the interconnect structures are disclosed. In an example, a 3D NAND memory device includes a semiconductor substrate, an alternating layer stack disposed on the semiconductor substrate, and a dielectric structure, which extends vertically through the alternating layer stack, on an isolation region of the substrate. Further, the alternating layer stack abuts a sidewall surface of the dielectric structure and the dielectric structure is formed of a dielectric material. The 3D memory device additionally includes one or more through array contacts that extend vertically through the dielectric structure and the isolation region, and one or more channel structures that extend vertically through the alternating layer stack.
    Type: Grant
    Filed: May 5, 2020
    Date of Patent: March 2, 2021
    Assignee: Yangtze Memory Technologies Co., Ltd.
    Inventors: Qian Tao, Yushi Hu, Zhenyu Lu, Li Hong Xiao, Xiaowang Dai, Yu Ting Zhou, Zhao Hui Tang, Mei Lan Guo, ZhiWu Tang, Qinxiang Wei, Qianbing Xu, Sha Sha Liu, Jian Hua Sun, EnBo Wang
  • Patent number: 10879254
    Abstract: Embodiments of three-dimensional (3D) memory devices having through array contacts (TACs) and methods for forming the same are disclosed. In an example, a method for forming a 3D memory device is disclosed. A dielectric stack including a plurality of dielectric/sacrificial layer pairs is formed on a substrate. A channel structure extending vertically through the dielectric stack is formed. A first opening extending vertically through the dielectric stack is formed. A spacer is formed on a sidewall of the first opening. A TAC extending vertically through the dielectric stack is formed by depositing a conductor layer in contact with the spacer in the first opening. A slit extending vertically through the dielectric stack is formed after forming the TAC. A memory stack including a plurality of conductor/dielectric layer pairs is formed on the substrate by replacing, through the slit, the sacrificial layers in the dielectric/sacrificial layer pairs with a plurality of conductor layers.
    Type: Grant
    Filed: January 17, 2020
    Date of Patent: December 29, 2020
    Assignee: YANGTZE MEMORY TECHNOLOGIES CO., LTD.
    Inventors: Mei Lan Guo, Yushi Hu, Ji Xia, Hongbin Zhu
  • Publication number: 20200266211
    Abstract: Embodiments of interconnect structures of a three-dimensional (3D) memory device and method for forming the interconnect structures are disclosed. In an example, a 3D NAND memory device includes a semiconductor substrate, an alternating layer stack disposed on the semiconductor substrate, and a dielectric structure, which extends vertically through the alternating layer stack, on an isolation region of the substrate. Further, the alternating layer stack abuts a sidewall surface of the dielectric structure and the dielectric structure is formed of a dielectric material. The 3D memory device additionally includes one or more through array contacts that extend vertically through the dielectric structure and the isolation region, and one or more channel structures that extend vertically through the alternating layer stack.
    Type: Application
    Filed: May 5, 2020
    Publication date: August 20, 2020
    Applicant: Yangtze Memory Technologies Co., Ltd.
    Inventors: Qian TAO, Yushi Hu, Zhenyu Lu, Li Hong Xiao, Xiaowang Dai, Yu Ting Zhou, Zhao Hui Tang, Mei Lan Guo, ZhiWu Tang, Qinxiang Wei, Qianbing Xu, Sha Sha Liu, Jian Hua Sun, EnBo Wang
  • Publication number: 20200161321
    Abstract: Embodiments of three-dimensional (3D) memory devices having through array contacts (TACs) and methods for forming the same are disclosed. In an example, a method for forming a 3D memory device is disclosed. A dielectric stack including a plurality of dielectric/sacrificial layer pairs is formed on a substrate. A channel structure extending vertically through the dielectric stack is formed. A first opening extending vertically through the dielectric stack is formed. A spacer is formed on a sidewall of the first opening. A TAC extending vertically through the dielectric stack is formed by depositing a conductor layer in contact with the spacer in the first opening. A slit extending vertically through the dielectric stack is formed after forming the TAC. A memory stack including a plurality of conductor/dielectric layer pairs is formed on the substrate by replacing, through the slit, the sacrificial layers in the dielectric/sacrificial layer pairs with a plurality of conductor layers.
    Type: Application
    Filed: January 17, 2020
    Publication date: May 21, 2020
    Inventors: Mei Lan Guo, Yushi Hu, Ji Xia, Hongbin Zhu
  • Publication number: 20200161322
    Abstract: Embodiments of three-dimensional (3D) memory devices having through array contacts (TACs) and methods for forming the same are disclosed. In an example, a method for forming a 3D memory device is disclosed. A dielectric stack including a plurality of dielectric/sacrificial layer pairs is formed on a substrate. A channel structure extending vertically through the dielectric stack is formed. A first opening extending vertically through the dielectric stack is formed. A spacer is formed on a sidewall of the first opening. A TAC extending vertically through the dielectric stack is formed by depositing a conductor layer in contact with the spacer in the first opening. A slit extending vertically through the dielectric stack is formed after forming the TAC. A memory stack including a plurality of conductor/dielectric layer pairs is formed on the substrate by replacing, through the slit, the sacrificial layers in the dielectric/sacrificial layer pairs with a plurality of conductor layers.
    Type: Application
    Filed: January 17, 2020
    Publication date: May 21, 2020
    Inventors: Mei Lan Guo, Yushi Hu, Ji Xia, Hongbin Zhu
  • Patent number: 10658378
    Abstract: Embodiments of interconnect structures of a three-dimensional (3D) memory device and method for forming the interconnect structures are disclosed. In an example, a 3D NAND memory device includes a semiconductor substrate, an alternating layer stack disposed on the semiconductor substrate, and a dielectric structure, which extends vertically through the alternating layer stack, on an isolation region of the substrate. Further, the alternating layer stack abuts a sidewall surface of the dielectric structure and the dielectric structure is formed of a dielectric material. The 3D memory device additionally includes one or more through array contacts that extend vertically through the dielectric structure and the isolation region, and one or more channel structures that extend vertically through the alternating layer stack.
    Type: Grant
    Filed: July 27, 2018
    Date of Patent: May 19, 2020
    Assignee: Yangtze Memory Technologies Co., Ltd.
    Inventors: Qian Tao, Yushi Hu, Zhenyu Lu, Li Hong Xiao, Xiaowang Dai, Yu Ting Zhou, Zhao Hui Tang, Mei Lan Guo, ZhiWu Tang, Qinxiang Wei, Qianbing Xu, Sha Sha Liu, Jian Hua Sun, Enbo Wang