Patents by Inventor Shu-Ming Li

Shu-Ming Li 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: 11974424
    Abstract: Provided is a memory device including a substrate, a plurality of landing pads, a protective layer, a filling layer, a plurality of cup-shaped lower electrodes, a capacitor dielectric layer, and an upper electrode. The landing pads are disposed on the substrate. The protective layer conformally covers sidewalls of the landing pads. The filling layer is laterally disposed between the landing pads, wherein the filling layer has a top surface higher than a top surface of the landing pads. The cup-shaped lower electrodes are respectively disposed on the landing pads. The capacitor dielectric layer covers a surface of the cup-shaped lower electrodes. The upper electrode covers a surface of the capacitor dielectric layer. A method of forming a memory device is also provided.
    Type: Grant
    Filed: November 30, 2021
    Date of Patent: April 30, 2024
    Assignee: Winbond Electronics Corp.
    Inventors: Chung-Ming Yang, Shu-Ming Li
  • Patent number: 11917837
    Abstract: A method of forming the semiconductor device is provided. The method includes following steps. A memory structure is formed over a first conductive line over a substrate and is electrically connected to the first conductive line. A sacrificial layer is formed on the memory structure. A spacer layer is formed to cover the memory structure and the sacrificial layer. A first dielectric layer is formed to cover the spacer layer. A planarization process is performed to remove a portion of the first dielectric layer. A second dielectric layer is formed on the spacer layer and the first dielectric layer. A patterning process is performed to form an opening exposing a portion of the top surface of the sacrificial layer. The sacrificial layer is removed to form a recess. A second conductive line is formed in the opening and the recess to be electrically coupled to the memory structure.
    Type: Grant
    Filed: August 29, 2022
    Date of Patent: February 27, 2024
    Assignee: Winbond Electronics Corp.
    Inventors: Yung-Han Chiu, Shu-Ming Li, Po-Yen Hsu
  • Publication number: 20230309297
    Abstract: A semiconductor structure includes an active region of a substrate, a gate electrode layer disposed over the active region, an isolation structure surrounding the active region and the gate electrode layer, and a gate dielectric layer. The gate dielectric layer includes a first portion interposed between the bottom surface of the gate electrode layer and the top surface of the active region. The gate dielectric layer also includes a second portion interposed between the isolation structure and the sidewall of the active region.
    Type: Application
    Filed: March 21, 2023
    Publication date: September 28, 2023
    Inventors: Yung-Han CHIU, Shu-Ming LI
  • Publication number: 20230171943
    Abstract: Provided is a memory device including a substrate, a plurality of landing pads, a protective layer, a filling layer, a plurality of cup-shaped lower electrodes, a capacitor dielectric layer, and an upper electrode. The landing pads are disposed on the substrate. The protective layer conformally covers sidewalls of the landing pads. The filling layer is laterally disposed between the landing pads, wherein the filling layer has a top surface higher than a top surface of the landing pads. The cup-shaped lower electrodes are respectively disposed on the landing pads. The capacitor dielectric layer covers a surface of the cup-shaped lower electrodes. The upper electrode covers a surface of the capacitor dielectric layer. A method of forming a memory device is also provided.
    Type: Application
    Filed: November 30, 2021
    Publication date: June 1, 2023
    Applicant: Winbond Electronics Corp.
    Inventors: Chung-Ming Yang, Shu-Ming Li
  • Patent number: 11631642
    Abstract: A method for manufacturing a semiconductor device includes forming contacts disposed in a dielectric layer. The method of forming the contacts includes forming contact holes and then filling with a conductive material. The method of forming the contact holes includes steps of forming openings in the dielectric layer to expose active regions, introducing a first oxygen plasma and a first fluorine plasma to remove by-products and oxidize inner surfaces of the openings, introducing a second oxygen plasma and a second fluorine plasma to remove the oxidized inner surfaces and repair the active regions, introducing a third oxygen plasma to oxidize inner surfaces again to form an oxide layer, and removing the oxide layer. The cross-sectional structure of two adjacent contact holes includes a capital, a base, and a shaft between the capital and the base, wherein the shaft has a smaller width than the base and the capital.
    Type: Grant
    Filed: November 30, 2021
    Date of Patent: April 18, 2023
    Assignee: Winbond Electronics Corp.
    Inventors: Shu-Ming Li, Chia-Hung Liu, Tzu-Ming Ou Yang
  • Patent number: 11610897
    Abstract: Provided is a landing pad structure including a substrate, a plurality of landing pads, a guard ring, and an edge pattern. The substrate includes a cell region, a periphery region, and a guard ring region located between the cell region and the periphery region. The landing pads are arranged on the substrate in the cell region in a hexagonal close packing (HCP) configuration. The guard ring is disposed on the substrate in the guard ring region in a strip form. The edge pattern is disposed on the substrate in the cell region and close to the guard ring region. A method of manufacturing the landing pad structure is also provided.
    Type: Grant
    Filed: April 8, 2021
    Date of Patent: March 21, 2023
    Assignee: Winbond Electronics Corp.
    Inventors: Keng-Ping Lin, Tetsuharu Kurokawa, Tzu-Ming Ou Yang, Shu-Ming Li
  • Publication number: 20230049425
    Abstract: A manufacturing method of a memory structure including the following steps is provided. A substrate is provided. The substrate includes a memory array region. A bit line structure is formed in the memory array region. The bit line structure is located on the substrate. A contact structure is formed in the memory array region. The contact structure is located on the substrate on one side of the bit line structure. A stop layer is formed in the memory array region. The stop layer is located above the bit line structure. A capacitor structure is formed in the memory array region. The capacitor structure passes through the stop layer and is electrically connected to the contact structure. The bottom surface of the capacitor structure is lower than the bottom surface of the stop layer.
    Type: Application
    Filed: October 26, 2022
    Publication date: February 16, 2023
    Applicant: Winbond Electronics Corp.
    Inventors: Keng-Ping Lin, Shu-Ming Li, Tzu-Ming Ou Yang
  • Publication number: 20220406846
    Abstract: A method of forming the semiconductor device is provided. The method includes following steps. A memory structure is formed over a first conductive line over a substrate and is electrically connected to the first conductive line. A sacrificial layer is formed on the memory structure. A spacer layer is formed to cover the memory structure and the sacrificial layer. A first dielectric layer is formed to cover the spacer layer. A planarization process is performed to remove a portion of the first dielectric layer. A second dielectric layer is formed on the spacer layer and the first dielectric layer. A patterning process is performed to form an opening exposing a portion of the top surface of the sacrificial layer. The sacrificial layer is removed to form a recess. A second conductive line is formed in the opening and the recess to be electrically coupled to the memory structure.
    Type: Application
    Filed: August 29, 2022
    Publication date: December 22, 2022
    Applicant: Winbond Electronics Corp.
    Inventors: Yung-Han Chiu, Shu-Ming Li, Po-Yen Hsu
  • Patent number: 11527537
    Abstract: A memory structure including a substrate, a bit line structure, a contact structure, a stop layer, and a capacitor structure is provided. The substrate includes a memory array region. The bit line structure is located in the memory array region and located on the substrate. The contact structure is located in the memory array region and located on the substrate on one side of the bit line structure. The stop layer is located in the memory array region and located above the bit line structure. The capacitor structure is located in the memory array region. The capacitor structure passes through the stop layer and is electrically connected to the contact structure. A bottom surface of the capacitor structure is lower than a bottom surface of the stop layer.
    Type: Grant
    Filed: May 3, 2021
    Date of Patent: December 13, 2022
    Assignee: Winbond Electronics Corp.
    Inventors: Keng-Ping Lin, Shu-Ming Li, Tzu-Ming Ou Yang
  • Publication number: 20220352172
    Abstract: A memory structure including a substrate, a bit line structure, a contact structure, a stop layer, and a capacitor structure is provided. The substrate includes a memory array region. The bit line structure is located in the memory array region and located on the substrate. The contact structure is located in the memory array region and located on the substrate on one side of the bit line structure. The stop layer is located in the memory array region and located above the bit line structure. The capacitor structure is located in the memory array region. The capacitor structure passes through the stop layer and is electrically connected to the contact structure. A bottom surface of the capacitor structure is lower than a bottom surface of the stop layer.
    Type: Application
    Filed: May 3, 2021
    Publication date: November 3, 2022
    Applicant: Winbond Electronics Corp.
    Inventors: Keng-Ping Lin, Shu-Ming Li, Tzu-Ming Ou Yang
  • Patent number: 11476305
    Abstract: A semiconductor device and method of forming the same are provided. The semiconductor device includes a first conductive line over a substrate and a memory structure over the first conductive line. The memory structure is electrically coupled to the first conductive line through a conductive via. A spacer layer is laterally aside the memory structure and covers sidewalls of the memory structure. A first dielectric layer is on the spacer layer and laterally aside the memory structure. A second dielectric layer is on the memory structure, the spacer layer and the first dielectric layer. A second conductive line penetrates through the second dielectric layer, the first dielectric layer and the spacer layer to electrically couple to the memory structure. The second conductive line includes a body part at least partially embedded in the second dielectric layer and an extension part underlying the body part and laterally protruding from a sidewall of the body part.
    Type: Grant
    Filed: February 3, 2021
    Date of Patent: October 18, 2022
    Assignee: Winbond Electronics Corp.
    Inventors: Yung-Han Chiu, Shu-Ming Li, Po-Yen Hsu
  • Publication number: 20220246680
    Abstract: A semiconductor device and method of forming the same are provided. The semiconductor device includes a first conductive line over a substrate and a memory structure over the first conductive line. The memory structure is electrically coupled to the first conductive line through a conductive via. A spacer layer is laterally aside the memory structure and covers sidewalls of the memory structure. A first dielectric layer is on the spacer layer and laterally aside the memory structure. A second dielectric layer is on the memory structure, the spacer layer and the first dielectric layer. A second conductive line penetrates through the second dielectric layer, the first dielectric layer and the spacer layer to electrically couple to the memory structure. The second conductive line includes a body part at least partially embedded in the second dielectric layer and an extension part underlying the body part and laterally protruding from a sidewall of the body part.
    Type: Application
    Filed: February 3, 2021
    Publication date: August 4, 2022
    Applicant: Winbond Electronics Corp.
    Inventors: Yung-Han Chiu, Shu-Ming Li, Po-Yen Hsu
  • Publication number: 20220223600
    Abstract: A manufacturing method for a memory structure including the following steps is provided. A bit line structure is formed on the substrate. A contact structure is formed on the substrate on one side of the bit line structure. A capacitor structure is formed on the contact structure. The capacitor structure includes a first electrode, a second electrode and an insulating layer. The first electrode is disposed on the contact structure in a misaligned manner. The first electrode includes a first bottom surface and a second bottom surface. The first bottom surface is lower than the second bottom surface. The first bottom surface is disposed on the contact structure. The second electrode is located on the first electrode. The insulating layer is disposed between the first electrode and the second electrode.
    Type: Application
    Filed: April 1, 2022
    Publication date: July 14, 2022
    Applicant: Winbond Electronics Corp.
    Inventors: Shu-Ming Li, Tzu-Ming Ou Yang, Chung-Ming Yang
  • Patent number: 11342332
    Abstract: A memory structure including a substrate, a bit line structure, a contact structure, and a capacitor structure is provided. The bit line structure is located on the substrate. The contact structure is located on the substrate on one side of the bit line structure. The capacitor structure is located on the contact structure. The capacitor structure includes a first electrode, a second electrode, and an insulating layer. The first electrode includes a first bottom surface and a second bottom surface. The first bottom surface is lower than the second bottom surface. The first bottom surface is only located on a part of the contact structure. The second electrode is located on the first electrode. The insulating layer is located between the first electrode and the second electrode.
    Type: Grant
    Filed: June 23, 2020
    Date of Patent: May 24, 2022
    Assignee: Winbond Electronics Corp.
    Inventors: Shu-Ming Li, Tzu-Ming Ou Yang, Chung-Ming Yang
  • Publication number: 20220093511
    Abstract: A method for manufacturing a semiconductor device includes forming contacts disposed in a dielectric layer. The method of forming the contacts includes forming contact holes and then filling with a conductive material. The method of forming the contact holes includes steps of forming openings in the dielectric layer to expose active regions, introducing a first oxygen plasma and a first fluorine plasma to remove by-products and oxidize inner surfaces of the openings, introducing a second oxygen plasma and a second fluorine plasma to remove the oxidized inner surfaces and repair the active regions, introducing a third oxygen plasma to oxidize inner surfaces again to form an oxide layer, and removing the oxide layer. The cross-sectional structure of two adjacent contact holes includes a capital, a base, and a shaft between the capital and the base, wherein the shaft has a smaller width than the base and the capital.
    Type: Application
    Filed: November 30, 2021
    Publication date: March 24, 2022
    Applicant: Winbond Electronics Corp.
    Inventors: Shu-Ming Li, Chia-Hung Liu, Tzu-Ming Ou Yang
  • Patent number: 11217527
    Abstract: A semiconductor device and a manufacturing method of the same are provided. The semiconductor device includes a substrate having a plurality of active regions, at least one dielectric layer formed on the substrate, and a plurality of contacts disposed in the dielectric layer and contacting with the active regions. The contact is a barrel-shaped structure with a middle portion, a head portion having a perimeter small than that of the middle portion, and an end portion having a perimeter small than that of the middle portion.
    Type: Grant
    Filed: December 10, 2019
    Date of Patent: January 4, 2022
    Assignee: Winbond Electronics Corp.
    Inventors: Shu-Ming Li, Chia-Hung Liu, Tzu-Ming Ou Yang
  • Publication number: 20210398982
    Abstract: A memory structure including a substrate, a bit line structure, a contact structure, and a capacitor structure is provided. The bit line structure is located on the substrate. The contact structure is located on the substrate on one side of the bit line structure. The capacitor structure is located on the contact structure. The capacitor structure includes a first electrode, a second electrode, and an insulating layer. The first electrode includes a first bottom surface and a second bottom surface. The first bottom surface is lower than the second bottom surface. The first bottom surface is only located on a part of the contact structure. The second electrode is located on the first electrode. The insulating layer is located between the first electrode and the second electrode.
    Type: Application
    Filed: June 23, 2020
    Publication date: December 23, 2021
    Applicant: Winbond Electronics Corp.
    Inventors: Shu-Ming Li, Tzu-Ming Ou Yang, Chung-Ming Yang
  • Publication number: 20210225850
    Abstract: Provided is a landing pad structure including a substrate, a plurality of landing pads, a guard ring, and an edge pattern. The substrate includes a cell region, a periphery region, and a guard ring region located between the cell region and the periphery region. The landing pads are arranged on the substrate in the cell region in a hexagonal close packing (HCP) configuration. The guard ring is disposed on the substrate in the guard ring region in a strip form. The edge pattern is disposed on the substrate in the cell region and close to the guard ring region. A method of manufacturing the landing pad structure is also provided.
    Type: Application
    Filed: April 8, 2021
    Publication date: July 22, 2021
    Applicant: Winbond Electronics Corp.
    Inventors: Keng-Ping Lin, Tetsuharu Kurokawa, Tzu-Ming Ou Yang, Shu-Ming Li
  • Publication number: 20210175169
    Abstract: A semiconductor device and a manufacturing method of the same are provided. The semiconductor device includes a substrate having a plurality of active regions, at least one dielectric layer formed on the substrate, and a plurality of contacts disposed in the dielectric layer and contacting with the active regions. The contact is a barrel-shaped structure with a middle portion, a head portion having a perimeter small than that of the middle portion, and an end portion having a perimeter small than that of the middle portion.
    Type: Application
    Filed: December 10, 2019
    Publication date: June 10, 2021
    Applicant: Winbond Electronics Corp.
    Inventors: Shu-Ming Li, Chia-Hung Liu, Tzu-Ming Ou Yang
  • Patent number: 11011525
    Abstract: Provided is a landing pad structure including a substrate, a plurality of landing pads, a guard ring, and an edge pattern. The substrate includes a cell region, a periphery region, and a guard ring region located between the cell region and the periphery region. The landing pads are arranged on the substrate in the cell region in a hexagonal close packing (HCP) configuration. The guard ring is disposed on the substrate in the guard ring region in a strip form. The edge pattern is disposed on the substrate in the cell region and close to the guard ring region. A method of manufacturing the landing pad structure is also provided.
    Type: Grant
    Filed: August 29, 2019
    Date of Patent: May 18, 2021
    Assignee: Winbond Electronics Corp.
    Inventors: Keng-Ping Lin, Tetsuharu Kurokawa, Tzu-Ming Ou Yang, Shu-Ming Li