Patents by Inventor Jian-Feng Chen

Jian-Feng Chen 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: 12009400
    Abstract: A method includes forming a dielectric layer on a semiconductor workpiece, forming a first patterned layer of a first dipole material on the dielectric layer, and performing a first thermal drive-in operation at a first temperature to form a diffusion feature in a first portion of the dielectric layer beneath the first patterned layer. The method also includes forming a second patterned layer of a second dipole material, where a first section of the second patterned layer is on the diffusion feature and a second section of the second patterned layer is offset from the diffusion feature. The method further includes performing a second thermal drive-in operation at a second temperature, where the second temperature is less than the first temperature. The method additionally includes forming a gate electrode layer on the dielectric layer.
    Type: Grant
    Filed: September 1, 2021
    Date of Patent: June 11, 2024
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Yung-Hsiang Chan, Shan-Mei Liao, Wen-Hung Huang, Jian-Hao Chen, Kuo-Feng Yu, Mei-Yun Wang
  • Publication number: 20240186188
    Abstract: A semiconductor device includes a first semiconductor layer below a second semiconductor layer; first and second gate dielectric layers surrounding the first and the second semiconductor layers, respectively; and a gate electrode surrounding both the first and the second gate dielectric layers. The first gate dielectric layer has a first top section above the first semiconductor layer and a first bottom section below the first semiconductor layer. The second gate dielectric layer has a second top section above the second semiconductor layer and a second bottom section below the second semiconductor layer. The first top section has a first thickness. The second top section has a second thickness. The second thickness is greater than the first thickness.
    Type: Application
    Filed: February 14, 2024
    Publication date: June 6, 2024
    Inventors: Yung-Hsiang CHAN, Wen-Hung HUANG, Shan-Mei LIAO, Jian-Hao CHEN, Kuo-Feng YU, Kuei-Lun LIN
  • Publication number: 20240137006
    Abstract: The disclosed technology generally relates to quartz crystal devices and more particularly to quartz crystal devices configured to vibrate in torsional mode. In one aspect, a quartz crystal device configured for temperature sensing comprises a fork-shaped quartz crystal comprising a pair of elongate tines laterally extending from a base region in a horizontal lengthwise direction of the fork-shaped quartz crystal, wherein each of the tines has formed on one or both of opposing sides thereof a pair of vertically recessed groove structures laterally elongated in the horizontal lengthwise direction, wherein the pair of groove structures are separated in a horizontal widthwise direction by a line structure.
    Type: Application
    Filed: May 17, 2023
    Publication date: April 25, 2024
    Inventors: Yue Fang, Jian Feng Chen
  • Publication number: 20240069304
    Abstract: A voice coil motor held immobile by magnetic attraction when not in use for photography purposes includes a base, a magnet fixed thereto, a carrier, a magnetic member, and a coil. The magnetic member is fixed to the carrier and is attracted by a permanent magnetic field (first MF) of the magnet on the base. The coil is fixed to the carrier and the magnetic member. When the voice coil motor is powered on, the coil generates a second magnetic field (second MF) opposing the first MF. The second MF reduces or eliminates the attractive force of the first MF of the magnet, to separate the carrier and its fittings and allow them to work freely. A lens module and an electronic device are further provided.
    Type: Application
    Filed: September 30, 2022
    Publication date: February 29, 2024
    Inventors: YU-SHUAI LI, SHIN-WEN CHEN, KUN LI, JIAN-CHAO SONG, WU-TONG WANG, DING FENG
  • Publication number: 20230353121
    Abstract: The disclosed technology generally relates to quartz crystal devices and more particularly to quartz crystal devices configured to vibrate in torsional mode. In one aspect, a quartz crystal device configured for temperature sensing comprises a fork-shaped quartz crystal comprising a pair of elongate tines laterally extending from a base region in a horizontal lengthwise direction of the fork-shaped quartz crystal. Each of the tines has formed on one or both of opposing sides thereof a vertically protruding line structure laterally elongated in the horizontal lengthwise direction. The quartz crystal device further comprises a first electrode and a second electrode formed on the one or both of the opposing sides of each of the tines and configured such that, when an electrical bias is applied between the first and second electrodes, the fork-shaped quartz crystal vibrates in a torsional mode in which each of the tines twists about a respective axis extending in the horizontal lengthwise direction.
    Type: Application
    Filed: May 1, 2023
    Publication date: November 2, 2023
    Inventors: Yue Fang, Jian Feng Chen
  • Patent number: 11658637
    Abstract: The disclosed technology generally relates to quartz crystal devices and more particularly to quartz crystal devices configured to vibrate in torsional mode. In one aspect, a quartz crystal device configured for temperature sensing comprises a fork-shaped quartz crystal comprising a pair of elongate tines laterally extending from a base region in a horizontal lengthwise direction of the fork-shaped quartz crystal, wherein each of the tines has formed on one or both of opposing sides thereof a pair of vertically recessed groove structures laterally elongated in the horizontal lengthwise direction, wherein the pair of groove structures are separated in a horizontal widthwise direction by a line structure.
    Type: Grant
    Filed: July 16, 2021
    Date of Patent: May 23, 2023
    Assignee: Statek Corporation
    Inventors: Yue Fang, Jian Feng Chen
  • Patent number: 11641187
    Abstract: The disclosed technology generally relates to quartz crystal devices and more particularly to quartz crystal devices configured to vibrate in torsional mode. In one aspect, a quartz crystal device configured for temperature sensing comprises a fork-shaped quartz crystal comprising a pair of elongate tines laterally extending from a base region in a horizontal lengthwise direction of the fork-shaped quartz crystal. Each of the tines has formed on one or both of opposing sides thereof a vertically protruding line structure laterally elongated in the horizontal lengthwise direction. The quartz crystal device further comprises a first electrode and a second electrode formed on the one or both of the opposing sides of each of the tines and configured such that, when an electrical bias is applied between the first and second electrodes, the fork-shaped quartz crystal vibrates in a torsional mode in which each of the tines twists about a respective axis extending in the horizontal lengthwise direction.
    Type: Grant
    Filed: July 16, 2021
    Date of Patent: May 2, 2023
    Assignee: STATEK CORPORATION
    Inventors: Yue Fang, Jian Feng Chen
  • Publication number: 20220109425
    Abstract: The disclosed technology generally relates to quartz crystal devices and more particularly to quartz crystal devices configured to vibrate in torsional mode. In one aspect, a quartz crystal device configured for temperature sensing comprises a fork-shaped quartz crystal comprising a pair of elongate tines laterally extending from a base region in a horizontal lengthwise direction of the fork-shaped quartz crystal, wherein each of the tines has formed on one or both of opposing sides thereof a pair of vertically recessed groove structures laterally elongated in the horizontal lengthwise direction, wherein the pair of groove structures are separated in a horizontal widthwise direction by a line structure.
    Type: Application
    Filed: July 16, 2021
    Publication date: April 7, 2022
    Inventors: Yue Fang, Jian Feng Chen
  • Publication number: 20220109424
    Abstract: The disclosed technology generally relates to quartz crystal devices and more particularly to quartz crystal devices configured to vibrate in torsional mode. In one aspect, a quartz crystal device configured for temperature sensing comprises a fork-shaped quartz crystal comprising a pair of elongate tines laterally extending from a base region in a horizontal lengthwise direction of the fork-shaped quartz crystal. Each of the tines has formed on one or both of opposing sides thereof a vertically protruding line structure laterally elongated in the horizontal lengthwise direction. The quartz crystal device further comprises a first electrode and a second electrode formed on the one or both of the opposing sides of each of the tines and configured such that, when an electrical bias is applied between the first and second electrodes, the fork-shaped quartz crystal vibrates in a torsional mode in which each of the tines twists about a respective axis extending in the horizontal lengthwise direction.
    Type: Application
    Filed: July 16, 2021
    Publication date: April 7, 2022
    Inventors: Yue Fang, Jian Feng Chen
  • Patent number: 11070192
    Abstract: The disclosed technology generally relates to quartz crystal devices and more particularly to quartz crystal devices configured to vibrate in torsional mode. In one aspect, a quartz crystal device configured for temperature sensing comprises a fork-shaped quartz crystal comprising a pair of elongate tines laterally extending from a base region in a horizontal lengthwise direction of the fork-shaped quartz crystal, wherein each of the tines has formed on one or both of opposing sides thereof a pair of vertically recessed groove structures laterally elongated in the horizontal lengthwise direction, wherein the pair of groove structures are separated in a horizontal widthwise direction by a line structure.
    Type: Grant
    Filed: August 21, 2020
    Date of Patent: July 20, 2021
    Assignee: Statek Corporation
    Inventors: Yue Fang, Jian Feng Chen
  • Patent number: 11070191
    Abstract: The disclosed technology generally relates to quartz crystal devices and more particularly to quartz crystal devices configured to vibrate in torsional mode. In one aspect, a quartz crystal device configured for temperature sensing comprises a fork-shaped quartz crystal comprising a pair of elongate tines laterally extending from a base region in a horizontal lengthwise direction of the fork-shaped quartz crystal. Each of the tines has formed on one or both of opposing sides thereof a vertically protruding line structure laterally elongated in the horizontal lengthwise direction. The quartz crystal device further comprises a first electrode and a second electrode formed on the one or both of the opposing sides of each of the tines and configured such that, when an electrical bias is applied between the first and second electrodes, the fork-shaped quartz crystal vibrates in a torsional mode in which each of the tines twists about a respective axis extending in the horizontal lengthwise direction.
    Type: Grant
    Filed: August 22, 2019
    Date of Patent: July 20, 2021
    Assignee: Statek Corporation
    Inventors: Yue Fang, Jian Feng Chen
  • Publication number: 20210058064
    Abstract: The disclosed technology generally relates to quartz crystal devices and more particularly to quartz crystal devices configured to vibrate in torsional mode. In one aspect, a quartz crystal device configured for temperature sensing comprises a fork-shaped quartz crystal comprising a pair of elongate tines laterally extending from a base region in a horizontal lengthwise direction of the fork-shaped quartz crystal, wherein each of the tines has formed on one or both of opposing sides thereof a pair of vertically recessed groove structures laterally elongated in the horizontal lengthwise direction, wherein the pair of groove structures are separated in a horizontal widthwise direction by a line structure.
    Type: Application
    Filed: August 21, 2020
    Publication date: February 25, 2021
    Inventors: Yue Fang, Jian Feng Chen
  • Publication number: 20210058063
    Abstract: The disclosed technology generally relates to quartz crystal devices and more particularly to quartz crystal devices configured to vibrate in torsional mode. In one aspect, a quartz crystal device configured for temperature sensing comprises a fork-shaped quartz crystal comprising a pair of elongate tines laterally extending from a base region in a horizontal lengthwise direction of the fork-shaped quartz crystal. Each of the tines has formed on one or both of opposing sides thereof a vertically protruding line structure laterally elongated in the horizontal lengthwise direction. The quartz crystal device further comprises a first electrode and a second electrode formed on the one or both of the opposing sides of each of the tines and configured such that, when an electrical bias is applied between the first and second electrodes, the fork-shaped quartz crystal vibrates in a torsional mode in which each of the tines twists about a respective axis extending in the horizontal lengthwise direction.
    Type: Application
    Filed: August 22, 2019
    Publication date: February 25, 2021
    Inventors: Yue Fang, Jian Feng Chen
  • Patent number: 10206171
    Abstract: Methods and systems for scheduling wake/sleep cycles by a central device in a wireless network that have at least one mobile device include determining a system reference cycle as a minimum value of a delay constraint on a real-time service for each mobile device of the at least one mobile device that has a real-time service. A wake/sleep cycle length is attributed to each mobile device. The wake/sleep cycle length is an integer multiple of the system reference cycle such that a wake/sleep cycle length of a first mobile device is different from that of a second mobile device. A sleep period and a wake period are assigned within the wake/sleep cycle of each mobile device. The wake/sleep cycle of each mobile device is arranged to avoid collision of the wake period with those of other mobile devices.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: February 12, 2019
    Assignee: INTERDIGITAL CE PATENT HOLDINGS
    Inventors: Ning Liao, Jian Feng Chen, Xiao Jun Ma
  • Patent number: 9686570
    Abstract: It is provided a method for synchronizing content playback at the presentation level, wherein, a first content is presented on a first device and a second content that is the same as or correlated with the first content is presented on a second device. The method comprises steps of receiving status messages from the first device and the second device, wherein the status messages comprise information about playback positions of the first content and the second content currently being playbacked at the presentation level of the first device and the second device; and in response to differences between playback positions of the first content and the second content comprised in the status messages being above a threshold value, performing adjustment to maintain difference of playback positions of the first content and the second content at the presentation level of the first device and the second device below the threshold value.
    Type: Grant
    Filed: February 12, 2010
    Date of Patent: June 20, 2017
    Assignee: THOMSON LICENSING
    Inventors: Jian Feng Chen, Xiao Jun Ma
  • Publication number: 20170019854
    Abstract: Methods and systems for scheduling wake/sleep cycles by a central device in a wireless network that have at least one mobile device include determining a system reference cycle as a minimum value of a delay constraint on a real-time service for each mobile device of the at least one mobile device that has a real-time service. A wake/sleep cycle length is attributed to each mobile device. The wake/sleep cycle length is an integer multiple of the system reference cycle such that a wake/sleep cycle length of a first mobile device is different from that of a second mobile device. A sleep period and a wake period are assigned within the wake/sleep cycle of each mobile device. The wake/sleep cycle of each mobile device is arranged to avoid collision of the wake period with those of other mobile devices.
    Type: Application
    Filed: September 30, 2016
    Publication date: January 19, 2017
    Inventors: Ning Liao, Jian Feng Chen, Xiao Jun Ma
  • Patent number: 9497704
    Abstract: A method for scheduling wake/sleep cycles by a central device in a wireless network is provided. The wireless network comprises at least one mobile device. The method comprises: attributing a wake/sleep cycle length to each mobile device, wherein the wake/sleep cycle length is an integer multiple of a system schedule cycle; assigning a sleep period and a wake period within the wake/sleep cycle of each mobile device; and arranging the wake/sleep cycle of each mobile device to avoid collision of the wake period with those of other mobile devices. The present invention can keep the maximum sleep cycle period of each MS to guarantee the QoS requirement and to efficiently utilize the system bandwidth.
    Type: Grant
    Filed: December 30, 2009
    Date of Patent: November 15, 2016
    Assignee: THOMSON LICENSING
    Inventors: Ning Liao, Jian Feng Chen, Xiao Jun Ma
  • Patent number: 9344478
    Abstract: A method and an apparatus for managing content distribution over multiple terminal devices in collaborative media system are provided. In the collaborative media system, a first media data is transmitted over a first channel path to a first media terminal and a second media data relevant to the first media data is transmitted over a second channel to a second media terminal. The method comprises: detecting a quality of the first media data on the first channel path and that of the second media data on the second channel path; upon detection the quality of the first media data being lower than a first predetermined value and that of the second media data being greater than a second predetermined value, transmitting the second media data over the second channel path, instead of the first media data over the first channel path, to the first media terminal (S204).
    Type: Grant
    Filed: December 7, 2010
    Date of Patent: May 17, 2016
    Assignee: Thomson Licensing
    Inventors: Jian Feng Chen, Ning Liao, Xiao Jun Ma
  • Patent number: 9137720
    Abstract: A method of a mobile station receiving data packets from a serving base station via a multicast or broadcast connection in a wireless network is provided for performing a handover from the serving base station to a target base station. The method comprises, at the level of the mobile station, the steps of: upon the detection of the quantity of buffered data packets in the mobile station being lower than a first threshold value, establishing a unicast connection with the serving base station to receive data packets from the serving base station; and upon detection of the level of buffered data packets reaching the predetermined threshold level, performing a handover from the serving base station to the target base station. According to the invention, a seamless handover of a mobile station in a wireless network providing Multicast and Broadcast Service (MBS service) can be achieved to prevent the MBS service interruption during the handover.
    Type: Grant
    Filed: January 4, 2010
    Date of Patent: September 15, 2015
    Assignee: Thomson Licensing
    Inventors: Jian Feng Chen, Jun Li, Yun Tao Shi, Ning Liao
  • Patent number: 9026878
    Abstract: A fast retransmission method by introducing the internal node under better channel condition to join the work of retransmission after the destination node sends out the packet loss indication for unicast services. Extended to serve multicast services, a system comprising a plurality of nodes utilizes the farthest node in each branch from the source to transmit an acknowledge signal when packet loss occurs. The system then enables the closest node to the acknowledging node to retransmit the requested packet, thereby improving the target packet hit rate and data integrity with less retransmission steps.
    Type: Grant
    Filed: November 11, 2008
    Date of Patent: May 5, 2015
    Assignee: Thomson Licensing
    Inventors: Jian Feng Chen, Zhi Gang Zhang, Yan Feng Zhang, Li Zou