Patents by Inventor Yi-Chang Wu

Yi-Chang Wu 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: 20240088071
    Abstract: Methods for reducing resistivity of metal gapfill include depositing a conformal layer in an opening of a feature and on a field of a substrate with a first thickness of the conformal layer of approximately 10 microns or less, depositing a non-conformal metal layer directly on the conformal layer at a bottom of the opening and directly on the field using an anisotropic deposition process. A second thickness of the non-conformal metal layer on the field and on the bottom of the feature is approximately 30 microns or greater. And depositing a metal gapfill material in the opening of the feature and on the field where the metal gapfill material completely fills the opening without any voids.
    Type: Application
    Filed: September 14, 2022
    Publication date: March 14, 2024
    Inventors: Yi XU, Yu LEI, Zhimin QI, Aixi ZHANG, Xianyuan ZHAO, Wei LEI, Xingyao GAO, Shirish A. PETHE, Tao HUANG, Xiang CHANG, Patrick Po-Chun LI, Geraldine VASQUEZ, Dien-yeh WU, Rongjun WANG
  • Publication number: 20240079278
    Abstract: A method includes forming a pad layer. The pad layer includes a first portion over a first part of a semiconductor substrate, and a second portion over a second part of the semiconductor substrate. The first portion has a first thickness, and the second portion has a second thickness smaller than the first thickness. The semiconductor substrate is then annealed to form a first oxide layer over the first part of the semiconductor substrate, and a second oxide layer over the second part of the semiconductor substrate. The pad layer, the first oxide layer, and the second oxide layer are removed. A semiconductor layer is epitaxially grown over and contacting the first part and the second part of the semiconductor substrate.
    Type: Application
    Filed: January 6, 2023
    Publication date: March 7, 2024
    Inventors: Jhih-Yong Han, Wen-Yen Chen, Yi-Ting Wu, Tsai-Yu Huang, Huicheng Chang, Yee-Chia Yeo
  • Patent number: 11499584
    Abstract: A joint device for screw and nut includes a first body and a second body. The first body is provided with a plurality of first internal threads, of first external threads, and a first protrusion. The first protrusion is extended with a first engaging portion. The second body is provided with a plurality of second internal threads, of second external threads, and a second protrusion. The second protrusion is extended with a second engaging portion, such that the first protrusion and the second protrusion can be engaged with each other. When in a joining status, the first engaging portion and the second engaging portion are engaged with each other, such that the first body and the second body are folded up and around the screw. The nut can therefore screw up the first body and the second body correspondingly.
    Type: Grant
    Filed: October 16, 2019
    Date of Patent: November 15, 2022
    Inventor: Yi-Chang Wu
  • Publication number: 20210062853
    Abstract: A joint device for screw and nut includes a first body and a second body. The first body is provided with a plurality of first internal threads, of first external threads, and a first protrusion. The first protrusion is extended with a first engaging portion. The second body is provided with a plurality of second internal threads, of second external threads, and a second protrusion. The second protrusion is extended with a second engaging portion, such that the first protrusion and the second protrusion can be engaged with each other. When in a joining status, the first engaging portion and the second engaging portion are engaged with each other, such that the first body and the second body are folded up and around the screw. The nut can therefore screw up the first body and the second body correspondingly.
    Type: Application
    Filed: October 16, 2019
    Publication date: March 4, 2021
    Inventor: Yi-Chang WU
  • Patent number: 10782745
    Abstract: An operation method of an electronic system includes the following steps. When a first communication module of the electronic device receives a call signal, a controller of an electronic device detects whether an expansion device is electrically connected to the electronic device. Based on a result of the controller detecting whether the expansion device is electrically connected to the electronic device, it is determined whether the electronic system performs sound amplification with a first speaker of the electronic device or performs playing with a second speaker of the expansion device.
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: September 22, 2020
    Assignee: COMPAL ELECTRONICS, INC.
    Inventors: I-Lung Chen, Yi-Hsuan Wu, Wang-Hung Yeh, Yi-Chang Wu, Yu-Fan Chuang, Yu-Wei Lai
  • Patent number: 10750002
    Abstract: A communication device includes a first body, a second body, a first audio module, and a second audio module. The second body is rotatably connected to the first body. The first audio module is disposed on the first body. The second audio module is at least partially disposed on the first body. When the second body rotates relatively to the first body to be in a first state to switch the communication device to be in a first operation mode, at least a portion of the first audio module is turned on, and the second audio module is turned off. When the second body rotates relatively to the first body to be in a second state to switch the communication device to be in a second operation mode, the first audio module is turned off, and the second audio module is turned on.
    Type: Grant
    Filed: January 7, 2019
    Date of Patent: August 18, 2020
    Assignee: COMPAL ELECTRONICS, INC.
    Inventors: Ching-Hua Li, Li-Fang Chen, Chen-Hsien Cheng, Yi-Chang Wu, Po-Yueh Lan, Yu-Wei Lai, Kun-Chang Chen, Yi-Chun Lin
  • Publication number: 20200141441
    Abstract: A pressing-type screw includes a screw-head component, a shank member, a multi-piece member, and a drilling-head component. The screw-head component is provided with a fastening slot, and is located at top of the shank member. The multi-piece member is located surrounding the shank member, where every single-piece member of the multi-piece member, if cross-sectioned, includes a consecutively formed first surface and second surface, and where the single-piece members of the multi-piece member, in a longitudinal direction of the shank member, each have their first surfaces parallel with each other. The drilling-head component is located at bottom of the shank member. As such, the pressing-type screw utilizes a pressing-and-securing manner to simplify the securing process in use of screws, such that the working efficiency thereof can be improved effectively.
    Type: Application
    Filed: December 19, 2018
    Publication date: May 7, 2020
    Inventor: Yi-Chang WU
  • Patent number: 10570945
    Abstract: A pressing-type screw includes a screw-head component, two first drilling-fastening components, and a drilling-head component. The screw-head component is provided with a fastening slot. The two first drilling-fastening components form an axis passing through the center of the screw-head component. The two first drilling-fastening components each has a top end in connection with the screw-head component, and each includes a first thread portion formed on a surface of each of the two first drilling-fastening components and furthest away from the axis. The drilling-head component is in connection with the bottom end of each of the two first drilling-fastening components. A hollow space is formed between the two first drilling-fastening components and the drilling-head component.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: February 25, 2020
    Inventor: Yi-Chang Wu
  • Patent number: 10554095
    Abstract: An AC motor with a reduction mechanism is disclosed. The AC motor has a stator unit, a rotor unit, and a reduction transmission unit. An axial space of the AC motor can be substantially reduced by providing the reduction transmission unit directly built in the AC motor, and a path of the power transmission between the rotor unit and an output shaft can be reduced, so that the loss of the mechanical energy can be lowered.
    Type: Grant
    Filed: December 27, 2017
    Date of Patent: February 4, 2020
    Assignee: NATIONAL CHENG KUNG UNIVERSITY
    Inventors: Hong-sen Yan, Yi-chang Wu, Jian-liang Lin, Kuan-chen Chen
  • Patent number: 10484544
    Abstract: A method and a system for adjusting a volume of a conference call are provided. The system includes at least one sub-device and a host. The host respectively connects the at least one sub-device and detects a number of the connected sub-devices. The host adjusts a volume of an original voice signal received from an external device according to the number of the connected sub-devices to generate an adjusted voice signal adapted to each sub-device and provides the same to each sub-device to play. The host also adjusts volumes of the original voice signals received by the host and each sub-device, integrates the adjusted original voice signals into an integrated voice signal adapted to the external device, and provides the same to the external device to play.
    Type: Grant
    Filed: May 27, 2016
    Date of Patent: November 19, 2019
    Assignee: COMPAL ELECTRONICS, INC.
    Inventors: Yi-Chang Wu, Po-Yueh Lan, Ming-Che Weng, Chang-Yuan Wu, Chih-Yuan Lin
  • Publication number: 20190215393
    Abstract: A communication device includes a first body, a second body, a first audio module, and a second audio module. The second body is rotatably connected to the first body. The first audio module is disposed on the first body. The second audio module is at least partially disposed on the first body. When the second body rotates relatively to the first body to be in a first state to switch the communication device to be in a first operation mode, at least a portion of the first audio module is turned on, and the second audio module is turned off. When the second body rotates relatively to the first body to be in a second state to switch the communication device to be in a second operation mode, the first audio module is turned off, and the second audio module is turned on.
    Type: Application
    Filed: January 7, 2019
    Publication date: July 11, 2019
    Applicant: COMPAL ELECTRONICS, INC.
    Inventors: Ching-Hua Li, Li-Fang Chen, Chen-Hsien Cheng, Yi-Chang Wu, Po-Yueh Lan, Yu-Wei Lai, Kun-Chang Chen, Yi-Chun Lin
  • Publication number: 20190212790
    Abstract: An operation method of an electronic system includes the following steps. When a first communication module of the electronic device receives a call signal, a controller of an electronic device detects whether an expansion device is electrically connected to the electronic device. Based on a result of the controller detecting whether the expansion device is electrically connected to the electronic device, it is determined whether the electronic system performs sound amplification with a first speaker of the electronic device or performs playing with a second speaker of the expansion device.
    Type: Application
    Filed: December 27, 2018
    Publication date: July 11, 2019
    Applicant: COMPAL ELECTRONICS, INC.
    Inventors: I-Lung Chen, Yi-Hsuan Wu, Wang-Hung Yeh, Yi-Chang Wu, Yu-Fan Chuang, Yu-Wei Lai
  • Patent number: 10321233
    Abstract: A method and a portable electronic apparatus for adaptively adjusting a playback effect of speakers are provided. The portable electronic apparatus includes a speaker enclosure volume adjusting device and a processor coupled to the speakers and the speaker enclosure volume adjusting device. In the method, the processor detects a usage demand for the portable electronic apparatus and accordingly determines an audio mode. Based on the determined audio mode, the processor selects and activates multiple speakers, and adjusts an enclosure volume of at least one of the activated speakers, so as to change an audio frequency range of the at least one speaker and an overall audio frequency range covered by the activated speakers. Finally, the processor plays an audio through the activated speakers.
    Type: Grant
    Filed: June 24, 2016
    Date of Patent: June 11, 2019
    Assignee: COMPAL ELECTRONICS, INC.
    Inventors: Po-Yueh Lan, Chang-Yuan Wu, Yi-Chang Wu, Kun-Tien Kuo, Ya-Hui Tseng, Chen-Yi Huang, Chun-Yi Ho, Hsiao-Ching Hung
  • Publication number: 20190040899
    Abstract: A pressing-type screw includes a screw-head component, two first drilling-fastening components, and a drilling-head component. The screw-head component is provided with a fastening slot. The two first drilling-fastening components form an axis passing through the center of the screw-head component. The two first drilling-fastening components each has a top end in connection with the screw-head component, and each includes a first thread portion formed on a surface of each of the two first drilling-fastening components and furthest away from the axis. The drilling-head component is in connection with the bottom end of each of the two first drilling-fastening components. A hollow space is formed between the two first drilling-fastening components and the drilling-head component.
    Type: Application
    Filed: November 21, 2017
    Publication date: February 7, 2019
    Inventor: Yi-Chang WU
  • Patent number: 10073748
    Abstract: A failover system and a method of deciding master-slave relationship therefor are provided. The failover system includes a first electronic device, a second electronic device, a decision circuit and at least two isolation modules. The decision circuit is coupled to the first electronic device and the second electronic device and configured to determine operating states of the first electronic device and the second electronic device and output a first selecting signal and a second selecting signal. The at least two isolation modules are coupled to the first electronic device, the second electronic device, and the decision circuit and configured to switch a master-slave relationship between the first electronic device and the second electronic device according to the first selecting signal and the second selecting signal.
    Type: Grant
    Filed: February 26, 2015
    Date of Patent: September 11, 2018
    Assignee: Wistron Corporation
    Inventor: Yi-Chang Wu
  • Publication number: 20180123426
    Abstract: An AC motor with a reduction mechanism is disclosed. The AC motor has a stator unit, a rotor unit, and a reduction transmission unit. An axial space of the AC motor can be substantially reduced by providing the reduction transmission unit directly built in the AC motor, and a path of the power transmission between the rotor unit and an output shaft can be reduced, so that the loss of the mechanical energy can be lowered.
    Type: Application
    Filed: December 27, 2017
    Publication date: May 3, 2018
    Applicant: National Cheng Kung University
    Inventors: Hong-sen Yan, Yi-chang Wu, Jian-liang Lin, Kuan-chen Chen
  • Patent number: 9933003
    Abstract: The present invention relates to an anti-vibration rivet, which comprises a core shaft and a sleeve. The core shaft including a head part and a shaft part, all of which are forming an overlap space, the head part is provided with an interlocking rabbet. The sleeve including a flange part and a fork part, all of which are forming an inner rabbet, the flange part is provided with an interlocking part which is engaged with the interlocking rabbet. With the structural design of the interlocking rabbet of the head part and the interlocking part of the flange part can improve the mutual fixing ability between the core shaft and the sleeve. And articles fixed by the anti-vibration rivet can have better stability.
    Type: Grant
    Filed: May 27, 2016
    Date of Patent: April 3, 2018
    Inventor: Yi-Chang Wu
  • Publication number: 20170111739
    Abstract: A method and a portable electronic apparatus for adaptively adjusting a playback effect of speakers are provided. The portable electronic apparatus includes a speaker enclosure volume adjusting device and a processor coupled to the speakers and the speaker enclosure volume adjusting device. In the method, the processor detects a usage demand for the portable electronic apparatus and accordingly determines an audio mode. Based on the determined audio mode, the processor selects and activates multiple speakers, and adjusts an enclosure volume of at least one of the activated speakers, so as to change an audio frequency range of the at least one speaker and an overall audio frequency range covered by the activated speakers. Finally, the processor plays an audio through the activated speakers.
    Type: Application
    Filed: June 24, 2016
    Publication date: April 20, 2017
    Applicant: COMPAL ELECTRONICS, INC.
    Inventors: Po-Yueh Lan, Chang-Yuan Wu, Yi-Chang Wu, Kun-Tien Kuo, Ya-Hui Tseng, Chen-Yi Huang, Chun-Yi Ho, Hsiao-Ching Hung
  • Publication number: 20160352913
    Abstract: A method and a system for adjusting a volume of a conference call are provided. The system includes at least one sub-device and a host. The host respectively connects the at least one sub-device and detects a number of the connected sub-devices. The host adjusts a volume of an original voice signal received from an external device according to the number of the connected sub-devices to generate an adjusted voice signal adapted to each sub-device and provides the same to each sub-device to play. The host also adjusts volumes of the original voice signals received by the host and each sub-device, integrates the adjusted original voice signals into an integrated voice signal adapted to the external device, and provides the same to the external device to play.
    Type: Application
    Filed: May 27, 2016
    Publication date: December 1, 2016
    Applicant: COMPAL ELECTRONICS, INC.
    Inventors: Yi-Chang Wu, Po-Yueh Lan, Ming-Che Weng, Chang-Yuan Wu, Chih-Yuan Lin
  • Publication number: 20160348707
    Abstract: The present invention relates to an anti-vibration rivet, which comprises a core shaft and a sleeve. The core shaft including a head part and a shaft part, all of which are forming an overlap space, the head part is provided with an interlocking rabbet. The sleeve including a flange part and a fork part, all of which are forming an inner rabbet, the flange part is provided with an interlocking part which is engaged with the interlocking rabbet. With the structural design of the interlocking rabbet of the head part and the interlocking part of the flange part can improve the mutual fixing ability between the core shaft and the sleeve. And articles fixed by the anti-vibration rivet can have better stability.
    Type: Application
    Filed: May 27, 2016
    Publication date: December 1, 2016
    Inventor: Yi-Chang WU