Patents by Inventor Chen-Chang Tsai

Chen-Chang Tsai 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: 11982860
    Abstract: An optical member driving mechanism is provided. The optical member driving mechanism includes a fixed portion, a movable portion, an electromagnetic driving assembly and an elastic member. The fixed portion has a base and a frame that is disposed on the base. The movable portion is movable relative to the fixed portion, and includes a carrier for carrying an optical member with an incident optical axis. The carrier includes a body and a sidewall that extends along the edge of the body, wherein the carrier further includes a first stopping portion and a second stopping portion protruding towards the fixed portion. The electromagnetic driving assembly drives the movable portion to move relative to the fixed portion. The movable portion is movably connected to the fixed portion via the elastic member.
    Type: Grant
    Filed: April 8, 2022
    Date of Patent: May 14, 2024
    Assignee: TDK TAIWAN CORP.
    Inventors: Chia-Che Wu, Sung-Mao Tsai, Chao-Chang Hu, Che-Wei Chang, Chen-Hsien Fan, Chih-Wei Weng
  • Publication number: 20240153786
    Abstract: A method includes bonding a package component to a composite carrier. The composite carrier includes a base carrier and an absorption layer, and the absorption layer is between the base carrier and the package component. A laser beam is projected onto the composite carrier. The laser beam penetrates through the base carrier to ablate the absorption layer. The base carrier may then be separated from the package component.
    Type: Application
    Filed: January 11, 2024
    Publication date: May 9, 2024
    Inventors: Huicheng Chang, Jyh-Cherng Sheu, Chen-Fong Tsai, Yun Chen Teng, Han-De Chen, Yee-Chia Yeo
  • Publication number: 20240120314
    Abstract: Methods of ion implantation combined with annealing using a pulsed laser or a furnace for cutting substrate in forming semiconductor devices and semiconductor devices including the same are disclosed. In an embodiment, a method includes forming a transistor structure of a device on a first semiconductor substrate; forming a front-side interconnect structure over a front side of the transistor structure; bonding a carrier substrate to the front-side interconnect structure; implanting ions into the first semiconductor substrate to form an implantation region of the first semiconductor substrate; and removing the first semiconductor substrate. Removing the first semiconductor substrate includes applying an annealing process to separate the implantation region from a remainder region of the first semiconductor substrate. The method also includes forming a back-side interconnect structure over a back side of the transistor structure.
    Type: Application
    Filed: December 20, 2023
    Publication date: April 11, 2024
    Inventors: Huicheng Chang, Jyh-Cherng Sheu, Chen-Fong Tsai, Yun Chen Teng, Han-De Chen, Yee-Chia Yeo
  • Patent number: 11956541
    Abstract: A control method of a driving mechanism is provided, including: the driving mechanism provides a first electrical signal from a control assembly to the driving mechanism to move the movable portion into an initial position relative to the fixed portion, wherein the control assembly includes a control unit and a position sensing unit; the status signal of an inertia sensing unit is read; the control unit sends the status signal to the control unit to calculate a target position; the control unit provides a second electrical signal to the driving assembly according to the target position for driving the driving assembly; a position signal is sent from the position sensing unit to the control unit; the control unit provides a third electric signal to the driving assembly to drive the driving assembly according the position signal.
    Type: Grant
    Filed: January 26, 2023
    Date of Patent: April 9, 2024
    Assignee: TDK TAIWAN CORP.
    Inventors: Chao-Chang Hu, Chen-Hsien Fan, Sung-Mao Tsai, Yueh-Lin Lee, Yu-Chiao Lo, Mao-Kuo Hsu, Ching-Chieh Huan, Yi-Chun Cheng
  • Patent number: 11934027
    Abstract: An optical system affixed to an electronic apparatus is provided, including a first optical module, a second optical module, and a third optical module. The first optical module is configured to adjust the moving direction of a first light from a first moving direction to a second moving direction, wherein the first moving direction is not parallel to the second moving direction. The second optical module is configured to receive the first light moving in the second moving direction. The first light reaches the third optical module via the first optical module and the second optical module in sequence. The third optical module includes a first photoelectric converter configured to transform the first light into a first image signal.
    Type: Grant
    Filed: June 21, 2022
    Date of Patent: March 19, 2024
    Assignee: TDK TAIWAN CORP.
    Inventors: Chao-Chang Hu, Chih-Wei Weng, Chia-Che Wu, Chien-Yu Kao, Hsiao-Hsin Hu, He-Ling Chang, Chao-Hsi Wang, Chen-Hsien Fan, Che-Wei Chang, Mao-Gen Jian, Sung-Mao Tsai, Wei-Jhe Shen, Yung-Ping Yang, Sin-Hong Lin, Tzu-Yu Chang, Sin-Jhong Song, Shang-Yu Hsu, Meng-Ting Lin, Shih-Wei Hung, Yu-Huai Liao, Mao-Kuo Hsu, Hsueh-Ju Lu, Ching-Chieh Huang, Chih-Wen Chiang, Yu-Chiao Lo, Ying-Jen Wang, Shu-Shan Chen, Che-Hsiang Chiu
  • Publication number: 20130025417
    Abstract: An operating tool able to be rotated for angles includes a handle, a driving head and a quick-disengaging unit. The quick-disengaging unit is provided with a fixing member pivotally assembled with the handle, and the fixing member has one end secured with the driving head and another end provided with a position-limiting member to have the handle restrictedly positioned with the fixing member. The quick-disengaging unit also has an operating member, which is to slide in the fixing member, and a restraining element connected with the operating member and stuck between the fixing member and the handle. The operating member can be operated to move the restraining element off the handle so that the driving head, with the fixing member acting as a pivot, can be rotated relative to the handle for quickly screwing or unscrewing a thread locking member.
    Type: Application
    Filed: July 28, 2011
    Publication date: January 31, 2013
    Inventor: Chen-Chang TSAI
  • Patent number: 7213492
    Abstract: An effective control mechanism for a socket wrench that is capable of safe, high efficiency, high strength torque control while eliminating the problem of losing control due to improperly applied external force. The control mechanism includes a handle, a socket, an inner rotor, a C-washer, a ring spacer, a dialer, left and right auxiliary positioning levers, a control, a spring, a lid, a roller, and an elastic member; wherein an end of the handle includes a segment channel to accommodate the socket and the inner rotor, the socket includes one or multiple elastic member and one or multiple roller in relation to the segment channel, and multiple locking holes being provided on the recessed surface of the end of the handle for installation of both of the left and the right auxiliary positioning levers and the spring.
    Type: Grant
    Filed: October 29, 2004
    Date of Patent: May 8, 2007
    Inventor: Chen-Chang Tsai
  • Patent number: 7188550
    Abstract: A new mechanism of an open-end adjustable spanner which includes a right latch, a left latch, a return spring, and a control member containing hairpin springs and a serrated bit installed in an accommodation trough of a handle to create a torque transmission structure to turn a ratchet by gearing to permit easy alignment of the ratchet with the bolt or nut and avoid slipping therefrom before and after tightening or loosening the bolt or nut; and allow effort-saving and convenient torque application in clamping head of a bolt or nut by selecting a proper specification of the configuration of the open end of the ratchet.
    Type: Grant
    Filed: October 29, 2004
    Date of Patent: March 13, 2007
    Inventor: Chen-Chang Tsai
  • Publication number: 20060090608
    Abstract: A torque-indicating socket wrench control mechanism to provide safe, high efficient, and high strength torque operation by preventing accidental falling off or out of control due to improperly use of external force is essentially by having a primary control to plunge a the socket at a proper angle by dialing a rotation part to drive the primary control to displace by rotation when an auxiliary positioning lever being pushed in by a spring to lock to an end of a wing retainer for assuring of an effective positioning of one-way retaining thus to select the torque direction desired for transmission for the handle of the wrench.
    Type: Application
    Filed: October 29, 2004
    Publication date: May 4, 2006
    Inventor: Chen-Chang Tsai
  • Publication number: 20060090607
    Abstract: A new mechanism of an open-end adjustable spanner includes right latch, left latch, return spring, and control containing hairpin springs and serrated bit respectively installed by deck into an accommodation trough of a handle to create a torque transmission structure to turn a ratchet by gearing to permit easy alignment of the ratchet at the bolt or nut and avoid falling off before and after tightening or loosening up the bolt or nut; and allow efforts-saving and convenient torque application in clamping head of a bolt or nut by selecting a proper specification of the configuration of the open end of the ratchet.
    Type: Application
    Filed: October 29, 2004
    Publication date: May 4, 2006
    Inventor: Chen-Chang Tsai
  • Patent number: 5697267
    Abstract: A socket wrench is provided between an inner rotary seat thereof and an outer fitting seat thereof with a plurality of slender steel bars, rubber sleeves and resisting bars, which work together to prevent the skidding of the inner rotary seat and the outer fitting seat and to provide a high torsion strength.
    Type: Grant
    Filed: January 27, 1995
    Date of Patent: December 16, 1997
    Inventor: Chen-Chang Tsai