Patents by Inventor Yi-Chun Liu

Yi-Chun 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: 11937370
    Abstract: A base material is provided. A first patterned circuit layer and a second patterned circuit layer are formed on a first surface and a second surface of the base material. A first insulation layer and a metal reflection layer are provided on the first patterned circuit layer and a portion of the first surface exposed by the first patterned circuit layer, wherein the metal reflection layer covers the first insulation layer, and a reflectance of the metal reflection layer is substantially greater than or equal to 85%, there is no conductive material between the first patterned circuit layer and the metal reflection layer. A first ink layer is formed on the first insulation layer before the metal reflection layer is formed.
    Type: Grant
    Filed: September 1, 2021
    Date of Patent: March 19, 2024
    Assignee: UNIFLEX Technology Inc.
    Inventors: Cheng-I Tu, Ying-Hsing Chen, Meng-Huan Chia, Hsin-Ching Su, Yi-Chun Liu, Cheng-Chung Lai, Yuan-Chih Lee
  • Publication number: 20240069606
    Abstract: A portable electronic device including a first body, a second body, and a hinge mechanism is provided. The second body is connected to the first body through the hinge mechanism, and the hinge mechanism has a basis axis located at the first body and a rotation axis located at a lower end of the second body. When the second body rotates with respect to the first body, the rotation axis slides along an arc shaped path with respect to the basis axis to increase or decrease a distance between the rotation axis and the basis axis and increase or decrease a distance between the lower end of the second body and a back end of the first body.
    Type: Application
    Filed: November 3, 2023
    Publication date: February 29, 2024
    Applicants: Acer Incorporated, Sinher Technology Inc.
    Inventors: Yi-Ta Huang, Cheng-Nan Ling, Chih-Chun Liu, Yung-Chang Chiang
  • Publication number: 20240071504
    Abstract: A memory device is provided, including a memory array, a driver circuit, and recover circuit. The memory array includes multiple memory cells. Each memory cell is coupled to a control line, a data line, and a source line and, during a normal operation, is configured to receive first and second voltage signals. The driver circuit is configured to output at least one of the first voltage signal or the second voltage signal to the memory cells. The recover circuit is configured to output, during a recover operation, a third voltage signal, through the driver circuit to at least one of the memory cells. The third voltage signal is configured to have a first voltage level that is higher than a highest level of the first voltage signal or the second voltage signal, or lower than a lowest level of the first voltage signal or the second voltage signal.
    Type: Application
    Filed: August 30, 2022
    Publication date: February 29, 2024
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Pei-Chun LIAO, Yu-Kai CHANG, Yi-Ching LIU, Yu-Ming LIN, Yih WANG, Chieh LEE
  • Patent number: 11913084
    Abstract: A quenching fixture adapted to clamp at least one workpiece is provided. The quenching fixture includes a first positioning component and a second positioning component. Both of the first positioning component and the second positioning component have a positioning surface, multiple protrusions protruding from the positioning surface and a heat dissipation channel disposed between the protrusions in a staggered manner. The positioning surface of the first positioning component faces the positioning surface of the second positioning component, and the protrusions of the first positioning component overlap the protrusions of the second positioning component. The workpiece is clamped between the protrusions of the first positioning component and the protrusions of the second positioning component.
    Type: Grant
    Filed: September 16, 2021
    Date of Patent: February 27, 2024
    Assignee: Acer Incorporated
    Inventors: Yi-Ta Huang, Cheng-Nan Ling, Chih-Chun Liu
  • Patent number: 11844156
    Abstract: An LED illumination device and a color temperature switching method thereof are provided. The LED illumination device includes a bridge rectifier chip, a microcontroller module, a first semiconductor switch module, a second semiconductor switch module, a first current limiting module, a second current limiting module, and a first light-emitting module and a second light-emitting module. The microcontroller module includes a microcontroller chip. The first semiconductor switch module includes a first semiconductor switch chip for receiving a first pulse width modulation signal output from the microcontroller chip. The second semiconductor switch module includes a second semiconductor switch chip for receiving a second pulse width modulation signal output from the microcontroller chip. When the AC power is supplied to the LED illumination device, the first and the second semiconductor switch modules are turned on and maintained within a predetermined turn-on percentage range without being completely turned off.
    Type: Grant
    Filed: December 22, 2022
    Date of Patent: December 12, 2023
    Assignee: PARAGON SEMICONDUCTOR LIGHTING TECHNOLOGY CO., LTD.
    Inventors: Chia-Tin Chung, Pei-Chun Liu, Yi-Chun Liu
  • Publication number: 20230378266
    Abstract: A device comprise a first semiconductor channel layer over a substrate, a second semiconductor channel layer over the first semiconductor channel layer, and source/drain epitaxial structures on opposite sides of the first semiconductor channel layer and opposite sides of the second semiconductor channel layer. A compressive strain in the second semiconductor channel layer is greater than a compressive strain in the first semiconductor channel layer. The source/drain epitaxial structures each comprise a first region interfacing the first semiconductor channel layer and a second region interfacing the second semiconductor channel layer, and the first region has a composition different from a composition of the second region.
    Type: Application
    Filed: July 31, 2023
    Publication date: November 23, 2023
    Applicants: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD., NATIONAL TAIWAN UNIVERSITY
    Inventors: Chung-En TSAI, Chia-Che CHUNG, Chee-Wee LIU, Fang-Liang LU, Yu-Shiang HUANG, Hung-Yu YEH, Chien-Te TU, Yi-Chun LIU
  • Patent number: 11795080
    Abstract: A microbial carrier and a device for treating wastewater are provided. The microbial carrier includes a bacteriophilic material and a plurality of foam cells, wherein the foam cells are disposed in the bacteriophilic material. The bactericidal material is a reaction product of a composite, wherein the composition includes a hydrophobic polyvinyl alcohol and a cross-linking agent, wherein the surface energy of the hydrophobic polyvinyl alcohol is 30 mJ/m2 to 58 mJ/m2.
    Type: Grant
    Filed: December 30, 2021
    Date of Patent: October 24, 2023
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Ting-Ting Chang, Kuan-Foo Chang, Cheng-Chin Chang, Yi-Chun Liu, Mei-Chih Peng
  • Patent number: 11798640
    Abstract: A memory device includes a memory cell array and a memory controller. The memory cell array includes a plurality of memory blocks. Each of the memory blocks includes a plurality of word lines. A plurality of memory chunks is coupled to at least one of the word lines. The memory controller is configured to program data to a particular memory chunk of the plurality of memory chunks by performing a chunk operation that includes selecting a particular word line from the plurality of word lines, selecting a particular memory chunk from the plurality of memory chunks that are coupled to the particular word line, and applying a program voltage to a particular memory block corresponding to the particular memory chunk to program data to the particular memory chunk.
    Type: Grant
    Filed: December 30, 2021
    Date of Patent: October 24, 2023
    Assignee: Macronix International Co., Ltd.
    Inventor: Yi-Chun Liu
  • Patent number: 11795245
    Abstract: A hydrophobic polyvinyl alcohol and a method for preparing hydrophobic polyvinyl alcohol are provided. The hydrophobic polyvinyl alcohol includes a first repeat unit represented by Formula (I), a second repeat unit represented by Formula (II), and a third repeat unit represented by Formula (III) wherein R1 is —Si(R2)3, R2 is independently C1-6 alkoxy group, C6-18 alkyl group, or C6-22 alkenyl group, and at least one R2 is C6-18 alkyl group or C6-22 alkenyl group; R3 and R4 are independently C6-18 alkyl group or C6-22 alkenyl group; j is 3 to 7; and k is 1 to 30.
    Type: Grant
    Filed: June 22, 2022
    Date of Patent: October 24, 2023
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Yi-Chun Liu, Pei-Ching Liu, Ting-Ting Chang, Tien-Shou Shieh
  • Patent number: 11776998
    Abstract: A device comprises a plurality of nanosheets, source/drain stressors, and a gate structure wrapping around the nanosheets. The nanosheets extend in a first direction above a semiconductor substrate and are arranged in a second direction substantially perpendicular to the first direction. The source/drain stressors are on either side of the nanosheets. Each of the source/drain stressors comprises a first epitaxial layer and a second epitaxial layer over the first epitaxial layer. The first and second epitaxial layers are made of a Group IV element and a Group V element. An atomic ratio of the Group V element to the Group IV element in the second epitaxial layer is greater than an atomic ratio of the Group V element to the Group IV element in the first epitaxial layer.
    Type: Grant
    Filed: January 24, 2022
    Date of Patent: October 3, 2023
    Assignees: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD., NATIONAL TAIWAN UNIVERSITY
    Inventors: Chung-En Tsai, Chia-Che Chung, Chee-Wee Liu, Fang-Liang Lu, Yu-Shiang Huang, Hung-Yu Yeh, Chien-Te Tu, Yi-Chun Liu
  • Publication number: 20230214158
    Abstract: A memory controller managing a memory device receives a memory read command from a host device that is communicably coupled to the memory device. The memory device includes a storage memory comprising a first type of memory cells and a cache memory comprising a second type of memory cells. The memory controller determines, from the memory read command, a physical address of a target memory location in the storage memory indicated by the memory read command. The memory controller executes a read operation on the target memory location corresponding to the physical address. The memory controller determines a read attribute of the target memory location. Conditioned on determining that the read attribute satisfies one or more threshold conditions, the memory controller programs an entry in the cache memory with information corresponding to the target memory location.
    Type: Application
    Filed: February 28, 2023
    Publication date: July 6, 2023
    Applicant: Macronix International Co., Ltd.
    Inventors: Ting-Yu Liu, Yi-Chun Liu
  • Publication number: 20230212046
    Abstract: A microbial carrier and a device for treating wastewater are provided. The microbial carrier includes a bacteriophilic material and a plurality of foam cells, wherein the foam cells are disposed in the bacteriophilic material. The bactericidal material is a reaction product of a composite, wherein the composition includes a hydrophobic polyvinyl alcohol and a cross-linking agent, wherein the surface energy of the hydrophobic polyvinyl alcohol is 30 mJ/m2 to 58 mJ/m2.
    Type: Application
    Filed: December 30, 2021
    Publication date: July 6, 2023
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Ting-Ting CHANG, Kuan-Foo CHANG, Cheng-Chin CHANG, Yi-Chun LIU, Mei-Chih PENG
  • Patent number: 11695089
    Abstract: A solar cell module is provided. The solar cell module includes a first substrate, a second substrate opposite the first substrate, a cell unit disposed between the first and second substrates, a first thermosetting resin layer disposed between the cell unit and the first substrate, a first thermoplastic resin layer disposed between the cell unit and the first thermosetting resin layer, a second thermosetting resin layer disposed between the cell unit and the second substrate, and a second thermoplastic resin layer disposed between the cell unit and the second thermosetting resin layer.
    Type: Grant
    Filed: December 31, 2019
    Date of Patent: July 4, 2023
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Min-Tsung Kuan, Wen-Hsien Wang, Yi-Chun Liu, Hsin-Hsin Hsieh, Chiou-Chu Lai
  • Publication number: 20230174686
    Abstract: A hydrophobic polyvinyl alcohol and a method for preparing hydrophobic polyvinyl alcohol are provided. The hydrophobic polyvinyl alcohol includes a first repeat unit represented by Formula (I), a second repeat unit represented by Formula (II), and a third repeat unit represented by Formula (III) wherein R1 is —Si(R2)3, R2 is independently C1-6 alkoxy group, C6-18 alkyl group, or C6-22 alkenyl group, and at least one R2 is C6-18 alkyl group or C6-22 alkenyl group; R3 and R4 are independently C6-18 alkyl group or C6-22 alkenyl group; j is 3 to 7; and k is 1 to 30.
    Type: Application
    Filed: June 22, 2022
    Publication date: June 8, 2023
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Yi-Chun LIU, Pei-Ching LIU, Ting-Ting CHANG, Tien-Shou SHIEH
  • Patent number: 11656934
    Abstract: Systems, methods, and apparatus including computer-readable mediums for managing open blocks in memory systems such as NAND flash memory devices are provided. In one aspect, a method includes: evaluating a read disturbance level of an open block in a memory, the open block having one or more programmed word lines and one or more blank word lines, and in response to determining that the read disturbance level of the open block is beyond a threshold level, managing each memory cell in at least one of the blank word lines to have a smaller data storing capacity than each memory cell in at least one of the one or more programmed word lines so as to reduce impact of read disturbance.
    Type: Grant
    Filed: April 27, 2022
    Date of Patent: May 23, 2023
    Assignee: Macronix International Co., Ltd.
    Inventors: Yi-Chun Liu, Wei Jie Chen, Ching Ting Lu, Zheng Wu
  • Patent number: 11645006
    Abstract: A memory controller managing a memory device receives a memory read command from a host device that is communicably coupled to the memory device. The memory device includes a storage memory comprising a first type of memory cells and a cache memory comprising a second type of memory cells. The memory controller determines, from the memory read command, a physical address of a target memory location in the storage memory indicated by the memory read command. The memory controller executes a read operation on the target memory location corresponding to the physical address. The memory controller determines a read attribute of the target memory location. Conditioned on determining that the read attribute satisfies one or more threshold conditions, the memory controller programs an entry in the cache memory with information corresponding to the target memory location.
    Type: Grant
    Filed: April 30, 2020
    Date of Patent: May 9, 2023
    Assignee: Macronix International Co., Ltd.
    Inventors: Ting-Yu Liu, Yi-Chun Liu
  • Publication number: 20230058459
    Abstract: The present disclosure provides a semiconductor structure and a method of forming the same. A semiconductor structure according to the present disclosure includes a plurality of nanostructures disposed over a substrate, a plurality of inner spacer features interleaving the plurality of nanostructures. The plurality of nanostructures are arranged along a direction perpendicular to the substrate. The plurality of inner spacer features include a bottommost inner spacer feature and upper inner spacer features disposed above the bottommost inner spacer feature. The first height of the bottommost inner spacer feature along the direction is greater than a second height of each of the upper inner spacer features.
    Type: Application
    Filed: February 16, 2022
    Publication date: February 23, 2023
    Inventors: Shahaji B. More, Cheng-Han Lee, Shih-Chieh Chang, Wan-Hsuan Hsieh, Yi-Chun Liu, Chee-Wee Liu
  • Patent number: 11576242
    Abstract: An LED illumination device for improving anti-surge capability includes a circuit substrate, a bridge rectifier chip, a surge absorber group, a first anti-surge current-limiting chip group, a second anti-surge current-limiting chip group, an LED illuminating group, and an LED current-limiting group. The surge absorber group is disposed on the circuit substrate and electrically connected to the bridge rectifier chip for absorbing a surge voltage. The first anti-surge current-limiting chip group is disposed on the circuit substrate for absorbing a first predetermined surge voltage. The second anti-surge current-limiting chip group is disposed on the circuit substrate for absorbing a second predetermined surge voltage. The LED illuminating group includes a plurality of LED chips disposed on the circuit substrate. The LED current-limiting group is disposed on the circuit substrate for controlling a total harmonic distortion of current (THDi) of the LED illuminating group.
    Type: Grant
    Filed: April 26, 2022
    Date of Patent: February 7, 2023
    Assignee: PARAGON SEMICONDUCTOR LIGHTING TECHNOLOGY CO., LTD.
    Inventors: Chia-Tin Chung, Pei-Chun Liu, Yi-Chun Liu
  • Publication number: 20220253352
    Abstract: Systems, methods, and apparatus including computer-readable mediums for managing open blocks in memory systems such as NAND flash memory devices are provided. In one aspect, a method includes: evaluating a read disturbance level of an open block in a memory, the open block having one or more programmed word lines and one or more blank word lines, and in response to determining that the read disturbance level of the open block is beyond a threshold level, managing each memory cell in at least one of the blank word lines to have a smaller data storing capacity than each memory cell in at least one of the one or more programmed word lines so as to reduce impact of read disturbance.
    Type: Application
    Filed: April 27, 2022
    Publication date: August 11, 2022
    Applicant: Macronix International Co., Ltd.
    Inventors: Yi-Chun Liu, Wei Jie Chen, Ching Ting Lu, Zheng Wu
  • Patent number: 11411190
    Abstract: A conformal organic field-effect transistor includes an elastic substrate, a gate electrode, a polymer insulating layer, an organic semiconductor layer, and a source electrode and a drain electrode from the bottom up, the source electrode and the drain electrode being embedded in the organic semiconductor layer.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: August 9, 2022
    Assignee: NORTHEAST NORMAL UNIVERSITY
    Inventors: Qing xin Tang, Xiaoli Zhao, Yan hong Tong, Yi chun Liu