Patents by Inventor Chien-Lan Chiu

Chien-Lan Chiu 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: 11362101
    Abstract: A three-dimensional memory device includes a plurality of conductive layers and insulating layers alternately formed to define a multi-layer stacked structure on a first region of a semiconductor substrate. The multi-layer stacked structure includes a stair structure and a non-stair structure. A plurality of memory structures are located in the non-stair structure to form a memory array region, and each memory structure passes through the conductive layers and the insulating layers. A plurality of bow-height adjustment features are located in a second region of the semiconductor substrate.
    Type: Grant
    Filed: March 5, 2020
    Date of Patent: June 14, 2022
    Assignee: MACRONIX INTERNATIONAL CO., LTD.
    Inventors: Chien-Lan Chiu, Chun-Min Cheng
  • Publication number: 20210280596
    Abstract: A three-dimensional memory device includes a plurality of conductive layers and insulating layers alternately formed to define a multi-layer stacked structure on a first region of a semiconductor substrate. The multi-layer stacked structure includes a stair structure and a non-stair structure. A plurality of memory structures are located in the non-stair structure to form a memory array region, and each memory structure passes through the conductive layers and the insulating layers. A plurality of bow-height adjustment features are located in a second region of the semiconductor substrate.
    Type: Application
    Filed: March 5, 2020
    Publication date: September 9, 2021
    Inventors: Chien-Lan CHIU, Chun-Min CHENG
  • Patent number: 10714491
    Abstract: A memory device and manufacturing method thereof are provided. The memory device includes a pair of stacked structures, a charge storage layer, and a channel layer. The stacked structures are disposed on a substrate. Each stacked structure includes gate layers and insulating layers stacked alternately, and a cap layer on the gate layers and the insulating layers. The charge storage layer is disposed on sidewalls of the stacked structures facing each other. The channel layer covers the charge storage layer, and has a top portion, a body portion, and a bottom portion. The top portion covers sidewalls of the cap layers of the stacked structures. The bottom portion covers a portion of the substrate located between the stacked structures. The body portion is connected between the top and bottom portions. Dopant concentrations of the top and bottom portions are respectively greater than a dopant concentration of the body portion.
    Type: Grant
    Filed: August 16, 2018
    Date of Patent: July 14, 2020
    Assignee: MACRONIX INTERNATIONAL CO., LTD.
    Inventors: Chien-Lan Chiu, Chun-Min Cheng
  • Publication number: 20200058666
    Abstract: A memory device and manufacturing method thereof are provided. The memory device includes a pair of stacked structures, a charge storage layer, and a channel layer. The stacked structures are disposed on a substrate. Each stacked structure includes gate layers and insulating layers stacked alternately, and a cap layer on the gate layers and the insulating layers. The charge storage layer is disposed on sidewalls of the stacked structures facing each other. The channel layer covers the charge storage layer, and has a top portion, a body portion, and a bottom portion. The top portion covers sidewalls of the cap layers of the stacked structures. The bottom portion covers a portion of the substrate located between the stacked structures. The body portion is connected between the top and bottom portions. Dopant concentrations of the top and bottom portions are respectively greater than a dopant concentration of the body portion.
    Type: Application
    Filed: August 16, 2018
    Publication date: February 20, 2020
    Applicant: MACRONIX International Co., Ltd.
    Inventors: Chien-Lan Chiu, Chun-Min Cheng
  • Publication number: 20160351493
    Abstract: A semiconductor device is provided, which includes a first conductive layer disposed on a substrate, a dielectric layer with at least an opening disposed on the first conductive layer, and a plurality of plugs filling up the openings. At least a portion of the dielectric layer adjacent to the openings is Si-rich, and each of the plugs includes a second conductive layer surrounded by a barrier layer.
    Type: Application
    Filed: May 27, 2015
    Publication date: December 1, 2016
    Inventors: Chien-Lan Chiu, Yung-Tai Hung, Chin-Ta Su, Tuung Luoh
  • Publication number: 20150187595
    Abstract: A method of fabricating a semiconductor device is provided. A substrate is provided. Thereafter, a dielectric layer is formed on the substrate, wherein the dielectric layer includes a first portion adjacent to the substrate and a second portion adjacent to the first portion. Afterwards, the dielectric layer is treated with nitrogen trifluoride (NF3) to remove the second portion of the dielectric layer and therefore expose the first portion of the dielectric layer. A semiconductor device is also provided.
    Type: Application
    Filed: December 26, 2013
    Publication date: July 2, 2015
    Applicant: MACRONIX International Co., Ltd.
    Inventors: Chien-Lan Chiu, Yung-Tai Hung, Chin-Ta Su
  • Patent number: 9070634
    Abstract: A method of fabricating a semiconductor device is provided. A substrate is provided. Thereafter, a dielectric layer is formed on the substrate, wherein the dielectric layer includes a first portion adjacent to the substrate and a second portion adjacent to the first portion. Afterwards, the dielectric layer is treated with nitrogen trifluoride (NF3) to remove the second portion of the dielectric layer and therefore expose the first portion of the dielectric layer. A semiconductor device is also provided.
    Type: Grant
    Filed: December 26, 2013
    Date of Patent: June 30, 2015
    Assignee: MACRONIX International Co., Ltd.
    Inventors: Chien-Lan Chiu, Yung-Tai Hung, Chin-Ta Su