Patents by Inventor Yu-Chih Cheng

Yu-Chih Cheng 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).

  • Publication number: 20240145561
    Abstract: A semiconductor may include an active region, an epitaxial source/drain formed in and extending above the active region, and a first dielectric layer formed over a portion of the active region. The semiconductor may include a first metal gate and a second metal gate formed in the first dielectric layer, a second dielectric layer formed over the first dielectric layer and the second metal gate, and a titanium layer, without an intervening fluorine residual layer, formed on the metal gate and the epitaxial source/drain. The semiconductor may include a first metal layer formed on top of the titanium on the first metal gate, a second metal layer formed on top of the titanium layer on the epitaxial source/drain, and a third dielectric layer formed on the second dielectric layer. The semiconductor may include first and second vias formed in the third dielectric layer.
    Type: Application
    Filed: January 10, 2024
    Publication date: May 2, 2024
    Inventors: Yu-Ting TSAI, Chung-Liang CHENG, Hong-Ming LO, Chun-Chih LIN, Chyi-Tsong NI
  • Patent number: 11964881
    Abstract: A method for making iridium oxide nanoparticles includes dissolving an iridium salt to obtain a salt-containing solution, mixing a complexing agent with the salt-containing solution to obtain a blend solution, and adding an oxidating agent to the blend solution to obtain a product mixture. A molar ratio of a complexing compound of the complexing agent to the iridium salt is controlled in a predetermined range so as to permit the product mixture to include iridium oxide nanoparticles.
    Type: Grant
    Filed: July 27, 2020
    Date of Patent: April 23, 2024
    Assignee: NATIONAL YANG MING CHIAO TUNG UNIVERSITY
    Inventors: Pu-Wei Wu, Yi-Chieh Hsieh, Han-Yi Wang, Kuang-Chih Tso, Tzu-Ying Chan, Chung-Kai Chang, Chi-Shih Chen, Yu-Ting Cheng
  • Publication number: 20240107414
    Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for switching a secondary cell to a primary cell. A user equipment (UE) monitors a first radio condition of the UE for beams of a primary cell and a second radio condition for beams of one or more secondary cells configured for the UE in carrier aggregation. The UE transmits a request to configure a candidate beam of at least one candidate secondary cell as a new primary cell in response to the first radio condition not satisfying a first threshold and the second radio condition for the at least one candidate secondary cell satisfying a second threshold. A base station determines to reconfigure at least one secondary cell as the new primary cell. The base station and the UE perform a handover of the UE to the new primary cell.
    Type: Application
    Filed: September 23, 2022
    Publication date: March 28, 2024
    Inventors: Yu-Chieh HUANG, Kuhn-Chang LIN, Jen-Chun CHANG, Wen-Hsin HSIA, Chia-Jou LU, Sheng-Chih WANG, Chenghsin LIN, Yeong Leong CHOO, Chun-Hsiang CHIU, Chihhung HSIEH, Kai-Chun CHENG, Chung Wei LIN
  • Publication number: 20240090230
    Abstract: A memory array and an operation method of the memory array are provided. The memory array includes first and second ferroelectric memory devices formed along a gate electrode, a channel layer and a ferroelectric layer between the gate electrode and the channel layer. The ferroelectric memory devices include: a common source/drain electrode and two respective source/drain electrodes, separately in contact with a side of the channel layer opposite to the ferroelectric layer, wherein the common source/drain electrode is disposed between the respective source/drain electrodes; and first and second auxiliary gates, capacitively coupled to the channel layer, wherein the first auxiliary gate is located between the common source/drain electrode and one of the respective source/drain electrodes, and the second auxiliary gate is located between the common source/drain electrode and the other respective source/drain electrode.
    Type: Application
    Filed: January 9, 2023
    Publication date: March 14, 2024
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Wen-Ling Lu, Chen-Jun Wu, Ya-Yun Cheng, Sheng-Chih Lai, Yi-Ching Liu, Yu-Ming Lin, Feng-Cheng Yang, Chung-Te Lin
  • Publication number: 20240028140
    Abstract: A roller input device includes a base, an active roller, a passive roller, and an actuation member. The active roller is disposed on the base and includes a first limiting structure and a first magnetic member. The passive roller is disposed on the base and includes a second limiting structure and a second magnetic member. A magnetic repulsion force is between the first magnetic pole of the first magnetic member and the second magnetic pole of the second magnetic member. When the actuation member is in a first mode, the actuation member drives the passive roller to move adjacent to the active roller. When the actuation member is in a second mode, the actuation member releases the passive roller to allow the magnetic repulsion force to drive the passive roller to move away from the active roller.
    Type: Application
    Filed: June 8, 2023
    Publication date: January 25, 2024
    Inventor: Yu-Chih Cheng
  • Publication number: 20230322078
    Abstract: A rotating assembly for a displaying device allowing vertical and horizontal presentation as a user requires. A displaying assembly, a transmitting assembly, and a driving assembly are included in the displaying device. The displaying assembly includes a displaying panel and a first clamping structure, the first clamping structure includes fixing structures with tenon structures in between. The transmitting assembly includes a second clamping structure and a connecting structure, the clamping structure comprises a clamping joint, the clamping joint is coupled to the tenon structure, and fixing grooves are defined on the second clamping structure. The fixing grooves are matched with the fixing structures, an end of the connecting structure is fixedly connected to the second clamping structure. The driving assembly includes a rotating driving member, an output shaft of the driving member is connected to the connecting structure.
    Type: Application
    Filed: September 1, 2022
    Publication date: October 12, 2023
    Inventors: YU-SHENG CHANG, CHI-CHENG WEN, CHIH-CHENG LEE, WEN-BIN HUANG, TSUNG-HSIN WU, YU-CHIH CHENG, HSIU-FU LI
  • Publication number: 20230322166
    Abstract: A rotary device with automatic reset function for precise stopping and holding of a viewable rotating element without free play or slop remaining includes a conversion assembly, and a power assembly with output element and sensing assembly. The conversion assembly comprises a light-shielding structure with the light-shielding structure on the extension part. The power assembly with output element can drive the extension part to rotate synchronously with the light-shielding structure. The detachable sensing assembly overlaps the rotation path of the light-shielding structure, and the conversion assembly rotates at different angles so that the light-shielding structure and the sensing assembly will match at certain angles, so as to trigger a sensing signal and call up the output element. A display screen includes the rotary device with automatic reset function and a display assembly.
    Type: Application
    Filed: September 1, 2022
    Publication date: October 12, 2023
    Inventors: YU-SHENG CHANG, CHI-CHENG WEN, CHIH-CHENG LEE, WEN-BIN HUANG, TSUNG-HSIN WU, YU-CHIH CHENG, HSIU-FU LI
  • Publication number: 20230320004
    Abstract: A rotating device which releases in the event of overload caused by external forceful counter-rotation includes positioning assemblies, a connecting assembly, and a driving assembly. Each positioning assembly includes a positioning member and sleeving member, part of the positioning member is positioned in the sleeving member and the positioning member abuts a first abutting portion in the sleeving member. The connecting assembly has a first end carrying mounting grooves, the mounting grooves themselves carrying the positioning assemblies. The driving assembly is connected to the first end, and when an external force of a certain magnitude is received by the positioning member, the positioning member moves into the sleeving member, and the driving assembly is thereby separated from and the positioning member, preventing the driving assembly from being damaged. A rotatable display apparatus with the rotating device is also disclosed.
    Type: Application
    Filed: July 25, 2022
    Publication date: October 5, 2023
    Inventors: YU-SHENG CHANG, CHI-CHENG WEN, CHIH-CHENG LEE, WEN-BIN HUANG, TSUNG-HSIN WU, YU-CHIH CHENG, HSIU-FU LI
  • Publication number: 20230311781
    Abstract: An energy absorbing structure comprises a first connecting member, a second connecting member, a brittle connecting member and an elastic buffering element. The first connecting member comprises a first end portion, and the first end portion defines a first accommodating cavity. The second connecting member comprise a second end portion, the second end portion defines a second accommodating cavity, and the first accommodating cavity communicates with the second accommodating cavity to form a telescopic cavity. The first connecting member and the second connecting member are connected by the brittle connecting member, the brittle connecting member is configured for breaking during a collision to absorb the energy generated by the collision. The elastic buffering element is arranged in the telescopic cavity, and the elastic buffering element is configured to be compressed by the first connecting member and the second connecting element together to deform and absorb energy during a collision.
    Type: Application
    Filed: August 12, 2022
    Publication date: October 5, 2023
    Inventors: YU-SHENG CHANG, CHI-CHENG WEN, CHIH-CHENG LEE, WEN-BIN HUANG, TSUNG-HSIN WU, YU-CHIH CHENG, HSIU-FU LI
  • Patent number: 11746848
    Abstract: The disclosure provides a buffer bracket, which comprises a base, a moving part, an elastic buffer and a positioning pin. The base is provided with a group of holes, which comprises a plurality of positioning holes arranged in sequence along the first direction. The moving part is movably fitted to the base along the first direction. The elastic buffer is elastically compressed between the base and the moving part. The locating pin is installed on the moving part. When the moving part moves forward in the first direction relative to the base under external force, the positioning pin is restricted to a certain positioning hole. The beneficial effect of the disclosure is that it can absorb impact energy and avoid rebound.
    Type: Grant
    Filed: December 7, 2022
    Date of Patent: September 5, 2023
    Assignees: Futaijing Precision Electronics (Yantai) Co., Ltd., HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Yu-Sheng Chang, Wen-Bin Huang, Hsiu-Fu Li, Yu-Chih Cheng
  • Patent number: 11620007
    Abstract: A mouse device includes a housing and a wheel module. The housing includes an outer accommodating slot. The wheel module is detachably disposed in the outer accommodating slot. The wheel module includes a mounting base and a wheel. The mounting base has two opposite side walls, and the mounting base is located at a bottom of the outer accommodating slot. The wheel has two opposite pivots, wherein the two pivots are connected to the two side walls of the mounting base respectively.
    Type: Grant
    Filed: September 20, 2021
    Date of Patent: April 4, 2023
    Assignee: CHICONY ELECTRONICS CO., LTD.
    Inventor: Yu-Chih Cheng
  • Patent number: 11545385
    Abstract: A carrier structure having a strengthening layer is provided. The strengthening layer comprises 5 to 30% by weight polysiloxane, 1 to 20% by weight silicon dioxide, and 60 to 85% by weight polyethylene terephthalate (PET) film. The carrier structure is used in a semiconductor packaging process for improving the process reliability.
    Type: Grant
    Filed: March 23, 2021
    Date of Patent: January 3, 2023
    Assignee: SILICONWARE PRECISION INDUSTRIES CO., LTD.
    Inventors: Tse-Yuan Lin, Chun-Ming Laio, Yu-Chih Cheng
  • Patent number: 11531065
    Abstract: A multi-channel timing calibration device and a method applicable thereto are provided. The device includes: a plurality of channel inputs, at least one relay switch, at least one comparator, at least one first multiplexer, and a time measurement chip. The at least one comparator is connected to the at least one relay switch, and connected to a reference voltage or a digital analog converter. The at least one first multiplexer has different signals for different channel groups and outputs a signal of a designated channel. The time measurement chip calculates a timing difference of each of the channels of each of the channel inputs as a basis for delay of the timing signals.
    Type: Grant
    Filed: August 29, 2021
    Date of Patent: December 20, 2022
    Assignee: YOUNGTEK ELECTRONICS CORPORATION
    Inventors: Ching-Yung Tseng, Yu-Chih Cheng, Ping-Lung Wang
  • Patent number: 11494005
    Abstract: A mouse device includes a housing, a keyswitch, a swing arm, a wheel seat, and a wheel. The housing includes a bottom board. The keyswitch is located over the bottom board and includes a button. The swing arm includes a pivotal portion and first and second extending portions. The pivotal portion is pivotally connected to the bottom board. The first extending portion is connected to the pivotal portion and abuts against the button. The second extending portion is connected to the pivotal portion. The wheel seat is located over the bottom board and configured to laterally swing toward the second extending portion to move the second extending portion, so as to rotate the swing arm to press the button by the first extending portion. The swing arm is located at a side of the wheel seat. The wheel is rotatably disposed in the wheel seat.
    Type: Grant
    Filed: November 18, 2021
    Date of Patent: November 8, 2022
    Assignee: Chicony Electronics Co., Ltd.
    Inventor: Yu-Chih Cheng
  • Publication number: 20220300095
    Abstract: A mouse device includes a housing, a keyswitch, a swing arm, a wheel seat, and a wheel. The housing includes a bottom board. The keyswitch is located over the bottom board and includes a button. The swing arm includes a pivotal portion and first and second extending portions. The pivotal portion is pivotally connected to the bottom board. The first extending portion is connected to the pivotal portion and abuts against the button. The second extending portion is connected to the pivotal portion. The wheel seat is located over the bottom board and configured to laterally swing toward the second extending portion to move the second extending portion, so as to rotate the swing arm to press the button by the first extending portion. The swing arm is located at a side of the wheel seat. The wheel is rotatably disposed in the wheel seat.
    Type: Application
    Filed: November 18, 2021
    Publication date: September 22, 2022
    Inventor: Yu-Chih CHENG
  • Publication number: 20220146575
    Abstract: A multi-channel timing calibration device and a method applicable thereto are provided. The device includes: a plurality of channel inputs, at least one relay switch, at least one comparator, at least one first multiplexer, and a time measurement chip. The at least one comparator is connected to the at least one relay switch, and connected to a reference voltage or a digital analog converter. The at least one first multiplexer has different signals for different channel groups and outputs a signal of a designated channel. The time measurement chip calculates a timing difference of each of the channels of each of the channel inputs as a basis for delay of the timing signals.
    Type: Application
    Filed: August 29, 2021
    Publication date: May 12, 2022
    Inventors: Ching-Yung Tseng, Yu-Chih Cheng, PING-LUNG WANG
  • Publication number: 20220137725
    Abstract: The present disclosure discloses a mouse device, which includes a housing and a wheel module. The housing includes an outer accommodating slot. The wheel module is detachably disposed in the outer accommodating slot. The wheel module includes a mounting base and a wheel. The mounting base has two opposite side walls, and the mounting base is located at a bottom of the outer accommodating slot. The wheel has two opposite pivots, wherein the two pivots are connected to the two side walls of the mounting base respectively.
    Type: Application
    Filed: September 20, 2021
    Publication date: May 5, 2022
    Inventor: YU-CHIH CHENG
  • Publication number: 20220028721
    Abstract: A carrier structure having a strengthening layer is provided. The strengthening layer comprises 5 to 30% by weight polysiloxane, 1 to 20% by weight silicon dioxide, and 60 to 85% by weight polyethylene terephthalate (PET) film. The carrier structure is used in a semiconductor packaging process for improving the process reliability.
    Type: Application
    Filed: March 23, 2021
    Publication date: January 27, 2022
    Applicant: SILICONWARE PRECISION INDUSTRIES CO., LTD.
    Inventors: Tse-Yuan Lin, Chun-Ming Laio, Yu-Chih Cheng
  • Publication number: 20200073488
    Abstract: A mouse device includes a mouse roller structure. The mouse roller structure includes a fixed seat, a roller, a ratchet, and a swing seat. The roller has a central shaft. The central shaft is pivoted to the fixed seat. The ratchet is adjacent to the roller in parallel and coaxially fixed to the central shaft. The ratchet and the roller rotate simultaneously. An outer circumferential surface of the ratchet has an outer circumferential tooth. The swing seat includes a pivoting portion and an abutting portion. The pivoting portion is pivoted to the fixed seat. The abutting portion is fixed with an L-shaped fixing plate. An end of the L-shaped fixing plate is bent with a folding plate. The folding plate is not in contact with the abutting portion and is spaced from the abutting portion by an interval. The folding plate is protruded with a convex portion.
    Type: Application
    Filed: August 6, 2019
    Publication date: March 5, 2020
    Inventor: Yu-Chih Cheng
  • Patent number: 10354891
    Abstract: An electronic package and a method for fabricating the same are provided. The method includes forming a filling material, such as an underfill, between a carrier and a plurality of electronic components and filling the filling material in a space between the electronic components to form a spacing portion. The spacing portion has a first segment and a second segment separated from each other to serve as a stress buffer zone. Therefore, when an encapsulation layer encapsulating the electronic components is subsequently ground, the present disclosure can effectively prevent the electronic components from being cracked due to stresses induced by the external grinding force.
    Type: Grant
    Filed: April 4, 2018
    Date of Patent: July 16, 2019
    Assignee: Siliconware Precision Industries Co., Ltd.
    Inventors: Po-Hao Wang, Chih-Jen Yang, Yu-Chih Cheng, Chee-Key Chung, Chang-Fu Lin