Patents by Inventor Ching-Feng YU

Ching-Feng YU 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: 10672674
    Abstract: In an embodiment, a method includes: stacking a plurality of first dies to form a device stack; revealing testing pads of a topmost die of the device stack; testing the device stack using the testing pads of the topmost die; and after testing the device stack, forming bonding pads in the topmost die, the bonding pads being different from the testing pads.
    Type: Grant
    Filed: June 29, 2018
    Date of Patent: June 2, 2020
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chen-Hua Yu, Sung-Feng Yeh, Ming-Fa Chen, Hsien-Wei Chen, Hui-Wen Liu, Ching-Pin Yuan
  • Publication number: 20200111753
    Abstract: A semiconductor device includes a semiconductor die having an insulative layer and a conductive feature in the insulative layer, and a shield in contact with a lateral surface of the conductive feature. In some embodiments, the lateral surface of the conductive feature is aligned with an edge of the insulating material.
    Type: Application
    Filed: December 4, 2019
    Publication date: April 9, 2020
    Inventors: CHUEI-TANG WANG, VINCENT CHEN, TZU-CHUN TANG, CHEN-HUA YU, CHING-FENG YANG, MING-KAI LIU, YEN-PING WANG, KAI-CHIANG WU, SHOU ZEN CHANG, WEI-TING LIN, CHUN-LIN LU
  • Publication number: 20200006164
    Abstract: In an embodiment, a method includes: stacking a plurality of first dies to form a device stack; revealing testing pads of a topmost die of the device stack; testing the device stack using the testing pads of the topmost die; and after testing the device stack, forming bonding pads in the topmost die, the bonding pads being different from the testing pads.
    Type: Application
    Filed: June 29, 2018
    Publication date: January 2, 2020
    Inventors: Chen-Hua Yu, Sung-Feng Yeh, Ming-Fa Chen, Hsien-Wei Chen, Hui-Wen Liu, Ching-Pin Yuan
  • Publication number: 20200006249
    Abstract: A method includes forming a metal post over a first dielectric layer, attaching a second dielectric layer over the first dielectric layer, encapsulating a device die, the second dielectric layer, a shielding structure, and the metal post in an encapsulating material, planarizing the encapsulating material to reveal the device die, the shielding structure, and the metal post, and forming an antenna electrically coupling to the device die. The antenna has a portion vertically aligned to a portion of the device die.
    Type: Application
    Filed: September 13, 2019
    Publication date: January 2, 2020
    Inventors: Kai-Chiang Wu, Chen-Hua Yu, Ching-Feng Yang, Meng-Tse Chen
  • Patent number: 10510681
    Abstract: A semiconductor device includes a semiconductor die, an insulative layer, a plurality of conductive features, a dummy redistribution layer (RDL), and an Electromagnetic Interference (EMI) shield. The insulative layer covers the semiconductor die. The conductive features substantially surround the insulative layer. The dummy RDL is over the insulative layer and electrically disconnected from the semiconductor die. The EMI shield is in contact with the plurality of conductive features and the dummy RDL.
    Type: Grant
    Filed: August 6, 2018
    Date of Patent: December 17, 2019
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
    Inventors: Chuei-Tang Wang, Vincent Chen, Tzu-Chun Tang, Chen-Hua Yu, Ching-Feng Yang, Ming-Kai Liu, Yen-Ping Wang, Kai-Chiang Wu, Shou Zen Chang, Wei-Ting Lin, Chun-Lin Lu
  • Patent number: 10468355
    Abstract: A method includes forming a metal post over a first dielectric layer, attaching a second dielectric layer over the first dielectric layer, encapsulating a device die, the second dielectric layer, a shielding structure, and the metal post in an encapsulating material, planarizing the encapsulating material to reveal the device die, the shielding structure, and the metal post, and forming an antenna electrically coupling to the device die. The antenna has a portion vertically aligned to a portion of the device die.
    Type: Grant
    Filed: April 30, 2018
    Date of Patent: November 5, 2019
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Kai-Chiang Wu, Chen-Hua Yu, Ching-Feng Yang, Meng-Tse Chen
  • Publication number: 20190229233
    Abstract: A light-emitting device is provided. The light-emitting device comprises a substrate; an insulating layer on the substrate, wherein the insulating layer comprises a first hole; a light-emitting stack on the insulating layer and comprising an active region comprising a top surface, wherein the top surface comprises a first part and a second part; and an opaque layer covering the first part of the top surface and exposing the second part of the top surface, wherein the second part is directly above the first hole.
    Type: Application
    Filed: April 3, 2019
    Publication date: July 25, 2019
    Inventors: Cheng-Feng YU, Ching-Yuan TSAI, Yao-Ru CHANG, Hsin-Chan CHUNG, Shih-Chang LEE, Wen-Luh LIAO, Cheng-Hsing CHIANG, Kuo-Feng HUANG, Hsu-Hsuan TENG, Hung-Ta CHENG, Yung-Fu CHANG
  • Publication number: 20190181096
    Abstract: A method includes forming a metal post over a first dielectric layer, attaching a second dielectric layer over the first dielectric layer, encapsulating a device die, the second dielectric layer, a shielding structure, and the metal post in an encapsulating material, planarizing the encapsulating material to reveal the device die, the shielding structure, and the metal post, and forming an antenna electrically coupling to the device die. The antenna has a portion vertically aligned to a portion of the device die.
    Type: Application
    Filed: April 30, 2018
    Publication date: June 13, 2019
    Inventors: Kai-Chiang Wu, Chen-Hua Yu, Ching-Feng Yang, Meng-Tse Chen
  • Patent number: 10312407
    Abstract: A light-emitting device is provided. The light-emitting device comprises a substrate; an insulating layer on the substrate, wherein the insulating layer comprises a first hole; a light-emitting stack on the insulating layer and comprising an active region comprising a top surface, wherein the top surface comprises a first part and a second part; and an opaque layer covering the first part of the top surface and exposing the second part of the top surface, wherein the second part is directly above the first hole.
    Type: Grant
    Filed: July 20, 2018
    Date of Patent: June 4, 2019
    Assignee: EPISTAR CORPORATION
    Inventors: Cheng-Feng Yu, Ching-Yuan Tsai, Yao-Ru Chang, Hsin-Chan Chung, Shih-Chang Lee, Wen-Luh Liao, Cheng-Hsing Chiang, Kuo-Feng Huang, Hsu-Hsuan Teng, Hung-Ta Cheng, Yung-Fu Chang
  • Patent number: 9249494
    Abstract: A method for producing a metal film of a touch panel provided by the present invention has the steps of: preparing a base plate; coating a mask on the surface of the base plate; using a sputtering process to sputter a metal material on the part of the base plate where is not covered by the mask; removing the mask so as to form a metal film and a hollow area; and using a laser engraving process to remove an over coating area that is produced by the metal film or the hollow area so as to produce the metal film.
    Type: Grant
    Filed: June 25, 2013
    Date of Patent: February 2, 2016
    Assignee: PARAGON TECHNOLOGIES CO., LTD.
    Inventors: Ching-Feng Yu, Min-Hsiang Yang
  • Patent number: 9098140
    Abstract: A power-saving touch pad apparatus includes a control unit, a proximity sensing unit, an electric charge induction unit, a touch pad driving-operation unit, and a touch pad unit. The electric charge induction unit is formed by a sputtering process. The electric charge induction unit informs the proximity sensing unit when the electric charge induction unit inducts electric charges. The proximity sensing unit informs the control unit. The control unit is configured to control the touch pad driving-operation unit to wake up the touch pad unit. The electric charge induction unit informs the proximity sensing unit when the electric charge induction unit does not induct electric charges. The proximity sensing unit informs the control unit. The control unit is configured to control the touch pad driving-operation unit to control the touch pad unit to enter a power-saving mode.
    Type: Grant
    Filed: May 2, 2013
    Date of Patent: August 4, 2015
    Assignee: PARAGON TECHNOLOGIES CO., LTD.
    Inventors: Ching-Feng Yu, Pin-Feng Hung
  • Patent number: 9054710
    Abstract: A touch keyboard with an improved structure is disclosed. The touch keyboard includes a keyboard casing and an inductive circuit layer. The keyboard casing has a front surface and a rear surface; the front surface has a keyboard key assembly composed of a plurality of touch keyboard keys. The touch keyboard keys are integrally formed with the keyboard casing and projected from the front surface of the keyboard casing. The inductive circuit layer is formed on the rear surface of the keyboard casing and is used to detect touching and sliding operations from the user. The touch keyboard keys are projected from the front surface of the keyboard casing so as to identify positions of the touch keyboard keys without fixing user's eyes on the keyboard and increase touching feeling.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: June 9, 2015
    Assignee: PARAGON TECHNOLOGIES CO., LTD.
    Inventors: Ching-Feng Yu, Pin-Feng Hung
  • Publication number: 20140374239
    Abstract: A method for producing a metal film of a touch panel provided by the present invention has the steps of: preparing a base plate; coating a mask on the surface of the base plate; using a sputtering process to sputter a metal material on the part of the base plate where is not covered by the mask; removing the mask so as to form a metal film and a hollow area; and using a laser engraving process to remove an over coating area that is produced by the metal film or the hollow area so as to produce the metal film.
    Type: Application
    Filed: June 25, 2013
    Publication date: December 25, 2014
    Inventors: Ching-Feng YU, Min-Hsiang YANG
  • Publication number: 20140327623
    Abstract: A power-saving touch pad apparatus includes a control unit, a proximity sensing unit, an electric charge induction unit, a touch pad driving-operation unit, and a touch pad unit. The electric charge induction unit is formed by a sputtering process. The electric charge induction unit informs the proximity sensing unit when the electric charge induction unit inducts electric charges. The proximity sensing unit informs the control unit. The control unit is configured to control the touch pad driving-operation unit to wake up the touch pad unit. The electric charge induction unit informs the proximity sensing unit when the electric charge induction unit does not induct electric charges. The proximity sensing unit informs the control unit. The control unit is configured to control the touch pad driving-operation unit to control the touch pad unit to enter a power-saving mode.
    Type: Application
    Filed: May 2, 2013
    Publication date: November 6, 2014
    Applicant: Paragon Technologies Co., Ltd
    Inventors: Ching-Feng YU, Pin-Feng HUNG
  • Publication number: 20140262721
    Abstract: A touch keyboard with an improved structure is disclosed. The touch keyboard includes a keyboard casing and an inductive circuit layer. The keyboard casing has a front surface and a rear surface; the front surface has a keyboard key assembly composed of a plurality of touch keyboard keys. The touch keyboard keys are integrally formed with the keyboard casing and projected from the front surface of the keyboard casing. The inductive circuit layer is formed on the rear surface of the keyboard casing and is used to detect touching and sliding operations from the user. The touch keyboard keys are projected from the front surface of the keyboard casing so as to identify positions of the touch keyboard keys without fixing user's eyes on the keyboard and increase touching feeling.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Applicant: PARAGON TECHNOLOGIES CO., LTD.
    Inventors: Ching-Feng YU, Pin-Feng HUNG