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: 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
  • Patent number: 12143249
    Abstract: An error detection and correction device includes a decision-feedback equalizer (DFE), a decision circuit, an error detection circuit, and an error correction circuit. The DFE equalizes a data signal to generate a first equalized signal. The decision circuit performs hard decision upon the first equalized signal to generate a symbol decision signal. The error detection circuit performs forward error detection at symbol positions of consecutive symbols included in the symbol decision signal to detect a head position of suspicious error that affects at least one symbol in the symbol decision signal. The error correction circuit performs error correction upon the symbol decision signal in response to the head position of the suspicious error that is detected by the error detection circuit.
    Type: Grant
    Filed: March 2, 2023
    Date of Patent: November 12, 2024
    Assignee: MEDIATEK INC.
    Inventors: Deng-Fu Weng, Yu-Ting Liu, Che-Yu Chiang, Chung-Hsien Tsai, Huai-Mao Weng
  • Patent number: 12140489
    Abstract: A pressure sensor comprises a polysilicon sensing membrane. The pressure sensor further includes one or more polysilicon electrodes disposed over a silicon substrate. The sensor also includes one or more polysilicon routing layers that electrically connects electrodes of the one or more polysilicon electrodes to one another, wherein the polysilicon sensing membrane deforms responsive to a stimuli and changes a capacitance between the polysilicon sensing membrane and the one or more polysilicon electrodes. The sensor also includes one or more vacuum cavities positioned between the polysilicon sensing membrane and the one or more polysilicon electrodes.
    Type: Grant
    Filed: August 30, 2022
    Date of Patent: November 12, 2024
    Assignee: InvenSense, Inc.
    Inventors: Tsung Lin Tang, Chung-Hsien Lin, Ting-Yuan Liu, Weng Shen Su, Yaoching Wang
  • Patent number: 12139398
    Abstract: A method includes depositing a passivation layer on a substrate; depositing and patterning a first polysilicon layer on the passivation layer; depositing and patterning a first oxide layer on the first polysilicon layer forming a patterned first oxide layer; depositing and patterning a second polysilicon layer on the patterned first oxide layer. A portion of the second polysilicon layer directly contacts a portion of the first polysilicon layer. A portion of the patterned second polysilicon layer corresponds to a bottom electrode. A second oxide layer is deposited on the patterned second polysilicon layer and on an exposed portion of the patterned first oxide layer. A portion of the second oxide layer corresponding to a sensing cavity is etched, exposing the bottom electrode. Another substrate is bonded to the second oxide layer enclosing the sensing cavity. A top electrode is disposed within the another substrate and positioned over the bottom electrode.
    Type: Grant
    Filed: September 21, 2022
    Date of Patent: November 12, 2024
    Assignee: InvenSense, Inc.
    Inventors: Weng Shen Su, CHung-Hsien Lin, Yaoching Wang, Tsung Lin Tang, Ting-Yuan Liu, Calin Miclaus
  • 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
  • Patent number: 12079709
    Abstract: A neuromorphic system for switching between a multitude of functional operations includes a controlling unit and a neuron unit. The controlling unit provides a first input and a second input and regulates a multitude of bias currents. The neuron unit receives the bias currents. An input neuron group receives the first input and the second input. An excitatory neuron group is stimulated by the input neuron group. An inhibitory neuron group is electrically connected to the excitatory neuron group, and the inhibitory neuron group and the excitatory neuron group stimulate each other. An output neuron is electrically connected to the excitatory neuron group and stimulated by the excitatory neuron group to generate an output. The bias currents control the excitatory neuron group, the inhibitory neuron group and the output neuron to be in one of a high-activity state, a middle-activity state and a low-activity state.
    Type: Grant
    Filed: October 21, 2020
    Date of Patent: September 3, 2024
    Assignee: NATIONAL TSING HUA UNIVERSITY
    Inventors: Chung-Chuan Lo, Alexander James White, Pei-Hsien Liu
  • Publication number: 20240237953
    Abstract: Disclosed is a method for collecting and presenting physiological signal data and location information, comprising: receiving physiological signal data; providing a first user interface to receive a first user input, the first user interface including a first representation of human body or a part thereof, and the first user input including a first location of the first representation; converting the first location to a first location information according to a predetermined first mapping relationship; storing the physiological signal data in association with an identification of the first location information; and in response to a request, providing a second user interface, the second user interface including a selection function, which provides a second representation corresponding to the first representation, wherein when a second location in the second representation corresponding to the first location information is selected, the second user interface presents the physiological signal data.
    Type: Application
    Filed: October 12, 2022
    Publication date: July 18, 2024
    Applicant: SyncVision Technology Corporation
    Inventors: Kuan Hsien CHEN, Chia Hung WU, Chung Han LIU
  • 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