Patents by Inventor Chung-Hsien Liu

Chung-Hsien Liu 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: 12237949
    Abstract: A communication receiver includes a first signal processing circuit and a second signal processing circuit. The first signal processing circuit includes a first feedforward equalizer and a decision circuit. The first feedforward equalizer processes a received signal to generate a first equalized signal. The decision circuit performs hard decision upon the first equalized signal to generate a first symbol decision signal. The second signal processing circuit includes a second feedforward equalizer, a decision feedforward equalizer, and a first decision feedback equalizer. The second feedforward equalizer processes the first equalized signal to generate a second equalized signal. The decision feedforward equalizer processes the first symbol decision signal to generate a third equalized signal. The first decision feedback equalizer generates a second symbol decision signal according to the second equalized signal and the third equalized signal.
    Type: Grant
    Filed: September 18, 2023
    Date of Patent: February 25, 2025
    Assignee: MEDIATEK INC.
    Inventors: Chung-Hsien Tsai, Che-Yu Chiang, Yu-Ting Liu, Tsung-Lin Lee, Chia-Sheng Peng, Ting-Ming Yang
  • Publication number: 20250046637
    Abstract: A device and a method for robotic arm automatic correction are disclosed. A main structure includes a robotic arm including an optical photographing mechanism, and a wafer storage mechanism at one side of the robotic arm and including a graphic data code. The optical photographing mechanism is in information connection with an optical recognition module that includes a data code analysis unit, an object distance analysis unit, and a wafer center analysis unit. A user uses the optical photographing mechanism to photograph the graphic data code for implementing a first round of position correction for the robotic arm. Then, the optical photographing mechanism photographs a wafer and performs an operation of focusing for calculation of a distance between the robotic arm and a center point of the wafer by means of the object distance analysis unit in combination with the wafer center analysis unit for a second round of correction.
    Type: Application
    Filed: August 4, 2023
    Publication date: February 6, 2025
    Inventors: Cheng-Hsiang LU, Chung-Hsien LU, Yu-Hsin LIU, Jen-Wei CHANG, Jyun-Yi LU, Bo-Wen LIN
  • Patent number: 12176440
    Abstract: A semiconductor structure and a method of forming the semiconductor structure are provided. The method of forming the semiconductor structure includes forming a floating gate layer on a substrate. A trench is formed in the floating gate layer and the substrate. A first dielectric layer is formed in the trench. A second dielectric layer is formed on the first dielectric layer. A third dielectric layer is formed on the second dielectric layer. A first sacrificial layer is formed on the third dielectric layer. A dielectric stack is formed on the first sacrificial layer. A control gate layer is formed on the dielectric stack. The first sacrificial layer is removed to form an air gap between the third dielectric layer and the dielectric stack.
    Type: Grant
    Filed: November 3, 2021
    Date of Patent: December 24, 2024
    Assignee: WINBOND ELECTRONICS CORP.
    Inventors: Shang-Rong Wu, Ming-Che Lin, Chung-Hsien Liu
  • Publication number: 20240349499
    Abstract: A memory device and a manufacturing method thereof are provided. The memory device includes: active regions, defined in a semiconductor substrate; word line structures, formed on the semiconductor substrate, and intersected with the active regions, wherein each of the word line structures includes a floating gate and a control gate stacked on the floating gate; first protection layers, respectively covering an upper part of the control gate in one of the word line structures, wherein a bottom end of the control gate in each word line structure is lower than a bottom end of each first protection layer; and a second protection layer, covering the first protection layers, and wrapping the word line structures.
    Type: Application
    Filed: June 27, 2023
    Publication date: October 17, 2024
    Applicant: Winbond Electronics Corp.
    Inventors: Tzu-Yun Huang, Chung-Hsien Liu
  • Patent number: 12119261
    Abstract: A manufacturing method for a semiconductor structure is provided. First active areas, a second active area, and a third active area are formed. A first dielectric layer is formed on the active areas. A patterned region that includes a cavity region and a dielectric region is formed in the first dielectric layer, and the cavity region surrounds the dielectric region. A filling layer is formed in the cavity region. Multiple first contact holes and at least one second contact hole that penetrate the first dielectric layer are formed. Each first contact hole exposes a portion of the corresponding first active area, and the second contact hole replaces the dielectric region and exposes a portion of the second active area. Metal layers are filled in to the first contact holes and the second contact hole.
    Type: Grant
    Filed: April 4, 2022
    Date of Patent: October 15, 2024
    Assignee: WINBOND ELECTRONICS CORP.
    Inventors: Chun-Hung Lin, Kao-Tsair Tsai, Chung-Hsien Liu, Tz-Hau Guo, Yen-Jui Chu
  • Publication number: 20240222525
    Abstract: A semiconductor structure is provided. The semiconductor structure includes a substrate with a trench between active regions, a tunneling dielectric layer disposed on the substrate, a floating gate layer disposed on the tunneling dielectric layer, and an isolation feature disposed in the trench and on the substrate. The isolation feature has a first opening and a second opening below the first opening. The semiconductor structure further includes a mask disposed on the sidewall of the first opening, and a dielectric stack layer disposed directly above the mask and the second opening.
    Type: Application
    Filed: January 4, 2023
    Publication date: July 4, 2024
    Inventor: Chung-Hsien LIU
  • Publication number: 20240194755
    Abstract: A semiconductor structure includes a substrate, a dielectric structure, a floating gate, and a control gate. The substrate has a protrusion, a first recess, and a second recess, wherein the first recess and the second recess are on opposite sides of the protrusion. The dielectric structure extends from the first recess and the second recess to above a top surface of the protrusion. The floating gate is disposed over the substrate and adjoins a sidewall of the dielectric structure. The control gate is disposed over the floating gate and extends over a top surface of the dielectric structure to directly above the protrusion.
    Type: Application
    Filed: July 20, 2023
    Publication date: June 13, 2024
    Inventors: Tzu-Yun HUANG, Chung-Hsien LIU
  • Publication number: 20230317520
    Abstract: A manufacturing method for a semiconductor structure is provided. First active areas, a second active area, and a third active area are formed. A first dielectric layer is formed on the active areas. A patterned region that includes a cavity region and a dielectric region is formed in the first dielectric layer, and the cavity region surrounds the dielectric region. A filling layer is formed in the cavity region. Multiple first contact holes and at least one second contact hole that penetrate the first dielectric layer are formed. Each first contact hole exposes a portion of the corresponding first active area, and the second contact hole replaces the dielectric region and exposes a portion of the second active area. Metal layers are filled in to the first contact holes and the second contact hole.
    Type: Application
    Filed: April 4, 2022
    Publication date: October 5, 2023
    Inventors: Chun-Hung LIN, Kao-Tsair TSAI, Chung-Hsien LIU, Tz-Hau GUO, Yen-Jui CHU
  • Publication number: 20230140646
    Abstract: A semiconductor structure and a method of forming the semiconductor structure are provided. The method of forming the semiconductor structure includes forming a floating gate layer on a substrate. A trench is formed in the floating gate layer and the substrate. A first dielectric layer is formed in the trench. A second dielectric layer is formed on the first dielectric layer. A third dielectric layer is formed on the second dielectric layer. A first sacrificial layer is formed on the third dielectric layer. A dielectric stack is formed on the first sacrificial layer. A control gate layer is formed on the dielectric stack. The first sacrificial layer is removed to form an air gap between the third dielectric layer and the dielectric stack.
    Type: Application
    Filed: November 3, 2021
    Publication date: May 4, 2023
    Inventors: Shang-Rong WU, Ming-Che LIN, Chung-Hsien LIU
  • Patent number: 10860404
    Abstract: This application provides a server and a debugging method therefor. The debugging method for a server includes receiving, by a complex programmable logic device (CPLD), a control signal generated by a switching member, and generating a switching signal; and switching, by a bus switch, a communication connection of a communications port to a debug port or a Serial Over LAN port of a baseboard management controller (BMC) based on the switching signal. In this way, debugging work is completed or industrial control application information is received at the communications port.
    Type: Grant
    Filed: January 29, 2019
    Date of Patent: December 8, 2020
    Assignee: MITAC COMPUTING TECHNOLOGY CORPORATION
    Inventors: Yi-Hua Wu, I-Hsin Chen, Chung-Hsien Liu
  • Patent number: 10847612
    Abstract: A method of manufacturing a memory structure including the following steps is provided. Stacked structures are formed on a substrate, and each of the stacked structures includes a first dielectric layer and a first conductive layer sequentially disposed on the substrate. A first opening is located between two adjacent stacked structure, and the first opening extends into the substrate. At least one isolation structure is formed in the first opening. The isolation structure covers a sidewall of the first dielectric layer. The isolation structure has a recess therein, such that a top profile of the isolation structure is shaped as a funnel. A second dielectric layer is formed on the stacked structures. A second conductive layer is formed on the second dielectric layer and fills the first opening.
    Type: Grant
    Filed: July 18, 2019
    Date of Patent: November 24, 2020
    Assignee: Winbond Electronics Corp.
    Inventors: Chung-Hsien Liu, Chun-Hsu Chen, Lu-Ping Chiang
  • Patent number: 10773953
    Abstract: A method of fabricating a MEMS structure includes providing a substrate comprising a logic element region and a MEMS region. Next, a logic element is formed within the logic element region. A nitrogen-containing material layer is formed to cover the logic element region and the MEMS region conformally. Then, part of the nitrogen-containing material layer within the MEMS region is removed to form at least one shrinking region. Subsequently, a dielectric layer is formed to cover the logic element region and MEMS region, and the dielectric layer fills in the shrinking region. After that, the dielectric layer is etched to form at least one releasing hole, wherein the shrinking region surrounds the releasing hole. Finally, the substrate is etched to form a chamber.
    Type: Grant
    Filed: September 7, 2017
    Date of Patent: September 15, 2020
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Meng-Jia Lin, Yung-Hsiao Lee, Weng-Yi Chen, Shih-Wei Li, Chung-Hsien Liu
  • Publication number: 20200064402
    Abstract: This application provides a server and a debugging method therefor. The debugging method for a server includes receiving, by a complex programmable logic device (CPLD), a control signal generated by a switching member, and generating a switching signal; and switching, by a bus switch, a communication connection of a communications port to a debug port or a Serial Over Lan port of a baseboard management controller (BMC) based on the switching signal. In this way, debugging work is completed or industrial control application information is received at the communications port.
    Type: Application
    Filed: January 29, 2019
    Publication date: February 27, 2020
    Applicant: MITAC COMPUTING TECHNOLOGY CORPORATION
    Inventors: Yi-Hua WU, I-Hsin CHEN, Chung-Hsien LIU
  • Patent number: 10566337
    Abstract: Provided is a method of manufacturing a memory device including following steps. A substrate including an active region and a periphery region. A stack layer is formed on the substrate. A first trench is formed in the substrate and the stack layer in the active region. A first isolation structure is formed in the first trench. An ion implantation process is performed to form a doped first isolation structure. A first wet etching process is performed to remove a portion of the doped first isolation structure, so that a first recess is formed on the doped first isolation structure. A protection layer is formed on the substrate to at least cover sidewalls of the first recess. A second wet etching process is performed to remove the protection layer and another portion of the doped first isolation structure and deepen the first recess. A SICONI etching process is performed.
    Type: Grant
    Filed: December 11, 2018
    Date of Patent: February 18, 2020
    Assignee: Winbond Electronics Corp.
    Inventors: Chung-Hsien Liu, Chun-Hsu Chen, Lu-Ping Chiang
  • Patent number: 10497786
    Abstract: A manufacturing method of a semiconductor device includes the following steps. A first conductive layer, a first oxide layer, and a hardmask layer are sequentially formed on a substrate. The hardmask layer and the first oxide layer are patterned to form a stacking structure including a hardmask pattern and a first oxide pattern. An oxidation process is performed, such that a second oxide layer is formed on surfaces of the stacking structure and the first conductive layer, and a region of the first conductive layer adjacent to a sidewall of the stacking structure are oxidized to form an extending oxide pattern. The second oxide layer is removed. The stacking structure is applied as a mask to remove an exposed portion of the first conductive layer and the substrate therebelow, such that a first conductive structure and a recess in the substrate are formed. The stacking structure is removed. The extending oxide pattern is removed.
    Type: Grant
    Filed: August 27, 2018
    Date of Patent: December 3, 2019
    Assignee: Winbond Electronics Corp.
    Inventors: Chung-Hsien Liu, Chun-Hsu Chen, Lu-Ping Chiang
  • Publication number: 20190341449
    Abstract: A method of manufacturing a memory structure including the following steps is provided. Stacked structures are formed on a substrate, and each of the stacked structures includes a first dielectric layer and a first conductive layer sequentially disposed on the substrate. A first opening is located between two adjacent stacked structure, and the first opening extends into the substrate. At least one isolation structure is formed in the first opening. The isolation structure covers a sidewall of the first dielectric layer. The isolation structure has a recess therein, such that a top profile of the isolation structure is shaped as a funnel. A second dielectric layer is formed on the stacked structures. A second conductive layer is formed on the second dielectric layer and fills the first opening.
    Type: Application
    Filed: July 18, 2019
    Publication date: November 7, 2019
    Applicant: Winbond Electronics Corp.
    Inventors: Chung-Hsien Liu, Chun-Hsu Chen, Lu-Ping Chiang
  • Publication number: 20190319037
    Abstract: Provided is a method of manufacturing a memory device including following steps. A substrate including an active region and a periphery region. A stack layer is formed on the substrate. A first trench is formed in the substrate and the stack layer in the active region. A first isolation structure is formed in the first trench. An ion implantation process is performed to form a doped first isolation structure. A first wet etching process is performed to remove a portion of the doped first isolation structure, so that a first recess is formed on the doped first isolation structure. A protection layer is formed on the substrate to at least cover sidewalls of the first recess. A second wet etching process is performed to remove the protection layer and another portion of the doped first isolation structure and deepen the first recess. A SICONI etching process is performed.
    Type: Application
    Filed: December 11, 2018
    Publication date: October 17, 2019
    Applicant: Winbond Electronics Corp.
    Inventors: Chung-Hsien Liu, Chun-Hsu Chen, Lu-Ping Chiang
  • Patent number: 10418440
    Abstract: A memory structure including a substrate, stacked structures, at least one isolation structure, a second conductive layer, and a second dielectric layer is provided. The stacked structures are disposed on the substrate. Each of the stacked structures includes a first dielectric layer and a first conductive layer sequentially disposed on the substrate. A first opening is located between two adjacent stacked structures, and the first opening extends into the substrate. The isolation structure is disposed in the first opening and covers a sidewall of the first dielectric layer. The isolation structure has a recess, such that a top profile of the isolation structure is shaped as a funnel. The second conductive layer is disposed on the stacked structures and fills the first opening. The second dielectric layer is disposed between the second conductive layer and the first conductive layer.
    Type: Grant
    Filed: August 30, 2017
    Date of Patent: September 17, 2019
    Assignee: Winbond Electronics Corp.
    Inventors: Chung-Hsien Liu, Chun-Hsu Chen, Lu-Ping Chiang
  • Patent number: 10381449
    Abstract: A method of manufacturing a memory device including following steps is provided. A first dielectric layer and a first conductive layer are formed in order on the substrate. A first opening and a second opening on the first opening are formed in the substrate, the first dielectric layer and the first conductive layer. An isolation structure is formed in the first opening. A second dielectric layer is formed on the substrate to conformally cover a top surface of the first conductive layer and a surface of the second opening. A heat treatment is performed on the second dielectric layer to enhance the bonding between the second dielectric layer and the first conductive layer. An etching process is performed, so as to remove a portion of the second dielectric layer and expose a top surface of the isolation structure.
    Type: Grant
    Filed: January 11, 2018
    Date of Patent: August 13, 2019
    Assignee: Winbond Electronics Corp.
    Inventors: Chung-Hsien Liu, Chun-Hsu Chen, Lu-Ping Chiang
  • Publication number: 20190088486
    Abstract: A manufacturing method of a semiconductor device includes the following steps. A first conductive layer, a first oxide layer, and a hardmask layer are sequentially formed on a substrate. The hardmask layer and the first oxide layer are patterned to form a stacking structure including a hardmask pattern and a first oxide pattern. An oxidation process is performed, such that a second oxide layer is formed on surfaces of the stacking structure and the first conductive layer, and a region of the first conductive layer adjacent to a sidewall of the stacking structure are oxidized to form an extending oxide pattern. The second oxide layer is removed. The stacking structure is applied as a mask to remove an exposed portion of the first conductive layer and the substrate therebelow, such that a first conductive structure and a recess in the substrate are formed. The stacking structure is removed. The extending oxide pattern is removed.
    Type: Application
    Filed: August 27, 2018
    Publication date: March 21, 2019
    Applicant: Winbond Electronics Corp.
    Inventors: Chung-Hsien Liu, Chun-Hsu Chen, Lu-Ping Chiang