Patents by Inventor Kuang Liu

Kuang Liu 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: 9541956
    Abstract: A supporting structure and a docking station using the same are provided. The supporting structure includes an elastic member, a sliding member, a lifting element and a damper. The sliding member having an inclined plane is connected to the elastic member. When the elastic member receives a force, the elastic member forces the sliding member to move along an axis line with the inclined plane facing to the lifting element. The lifting element is arranged over a travel path of the inclined plane and has an abutting portion. When the lifting element receives another force so that the abutting portion abuts against the inclined plane, the sliding member stops moving and the height position of the lifting element is fixed. The damper is mated with the sliding member to slow down the velocity of the sliding member.
    Type: Grant
    Filed: November 12, 2014
    Date of Patent: January 10, 2017
    Assignees: UNIVERSAL SCIENTIFIC INDUSTRIAL (SHANGHAI) CO., LTD., UNIVERSAL GLOBAL SCIENTIFIC INDUSTRIAL CO., LTD.
    Inventors: Ming-Jen Chen, Kuo-Kuang Liu, Yu-Chen Chu, Chang-Cheng Lin
  • Patent number: 9539621
    Abstract: A wafer cleaning device comprising a wafer stage for holding a wafer having a surface to be washed, a first nozzle positioned above the wafer, a second nozzle positioned above the wafer. A first height is between the first nozzle and the surface and a second height is between the second nozzle and the surface, wherein the first height is shorter than the second height.
    Type: Grant
    Filed: December 17, 2013
    Date of Patent: January 10, 2017
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Hsin-Ting Tsai, Cheng-Hung Yu, Chin-Kuang Liu, Ming-Hsin Lee, Wei-Hong Chuang, Kuei-Chang Tung, Yan-Yi Lu, Chin-Chin Wang
  • Patent number: 9507264
    Abstract: A color filter pattern including a plurality of color filters arranged in a pattern and the manufacturing method thereof are provided. By performing at least one two-stage exposure process to a color filter layer, the plurality of color filters are formed with a sharp profile.
    Type: Grant
    Filed: February 2, 2015
    Date of Patent: November 29, 2016
    Assignee: United Microelectronics Corp.
    Inventors: Hsin-Ting Tsai, Cheng-Hung Yu, Chin-Kuang Liu, Ming-Hsin Lee
  • Patent number: 9502511
    Abstract: An edge terminal structure of a power semiconductor device includes a second conductive-type substrate, a first conductive-type buffer layer, a first conductive-type epitaxial layer, a first and a second electrodes, and a first and a second field plates. A trench is in a surface of the first conductive-type epitaxial layer in an edge terminal area beside an active area of the power semiconductor device. The first field plate includes at least a L-shaped electric-plate, a gate insulation layer under the L-shaped electric-plate, and the first electrode on the L-shaped electric-plate. The second field plate includes a portion of the first electrode and at least an insulation layer between the portion of the first electrode and the first conductive-type epitaxial layer. The insulation layer covers the tail of the trench and completely covers the L-shaped electric-plate.
    Type: Grant
    Filed: August 6, 2015
    Date of Patent: November 22, 2016
    Assignee: Excelliance MOS Corporation
    Inventor: Chu-Kuang Liu
  • Patent number: 9502512
    Abstract: An edge terminal structure of a trench power semiconductor device includes a first conductive-type substrate, a first conductive-type epitaxial layer thereon, a first electrode on a surface of the first conductive-type epitaxial layer, a second electrode on a back of the first conductive-type substrate, a first and a second field plates. The trench power semiconductor device includes an active area and an edge terminal area. A trench is in the surface of the first conductive-type epitaxial layer. The first field plate includes an L-shaped electric-plate, a gate insulation layer below the L-shaped electric-plate, and the first electrode on the L-shaped electric-plate. The second field plate includes a portion of the first electrode and an insulation layer between the portion of the first electrode and the first conductive-type epitaxial layer. The insulation layer covers the tail of the trench and completely covers the L-shaped electric-plate.
    Type: Grant
    Filed: August 6, 2015
    Date of Patent: November 22, 2016
    Assignee: Excelliance MOS Corporation
    Inventor: Chu-Kuang Liu
  • Patent number: 9446363
    Abstract: A methanol carbonylation system 10 includes an absorber tower 75 adapted for receiving a vent gas stream and removing methyl iodide therefrom with a scrubber solvent, the absorber tower being coupled to first and second scrubber solvent sources 16, 56 which are capable of supplying different first and second scrubber solvents. A switching system including valves 90, 92, 94, 96, 98 alternatively provides first or second scrubber solvents to the absorber tower and returns the used solvent and sorbed material to the carbonylation system to accommodate different operating modes.
    Type: Grant
    Filed: November 20, 2012
    Date of Patent: September 20, 2016
    Assignee: Celanese International Corporation
    Inventors: Raymond J. Zinoble, Tommy W. Doggett, Lun-kuang Liu
  • Publication number: 20160223912
    Abstract: A color filter pattern including a plurality of color filters arranged in a pattern and the manufacturing method thereof are provided. By performing at least one two-stage exposure process to a color filter layer, the plurality of color filters are formed with a sharp profile.
    Type: Application
    Filed: February 2, 2015
    Publication date: August 4, 2016
    Inventors: Hsin-Ting Tsai, Cheng-Hung Yu, Chin-Kuang Liu, Ming-Hsin Lee
  • Publication number: 20160190716
    Abstract: Some forms relate to a socket having a housing. A first receiving pin field is formed as part of the housing. The first pin receiving field includes a first plurality of electrical contacts. A second receiving pin field is formed as part of the housing. The second pin field includes a second plurality of electrical contacts. An actuation mechanism is configured to engage the first plurality electrical contacts with a first set of pins on a first electronic package and the second plurality electrical contacts with a second set of pins on a second electronic package.
    Type: Application
    Filed: December 26, 2014
    Publication date: June 30, 2016
    Inventors: Kuang Liu, Gregorio Murtagian, David J. Llapitan, Jeffory L. Smalley, Gaurav Chawla, Joshua D. Heppner, Vijaykumar Krithivasan, Jonathan W. Thibado
  • Publication number: 20160190717
    Abstract: Some forms relate to an electronic assembly that includes a plurality of electronic package. The electronic assembly includes a frame and a first electronic package mounted on the frame. The first electronic package includes a first pin grid array. The electronic assembly further includes a second electronic package mounted on the frame. The second electronic package includes a second pin grid array. The electronic assembly further includes an actuation mechanism on the frame. The actuation mechanism is configured to move the first electronic package and the second electronic package relative to the frame during operation of the actuation mechanism.
    Type: Application
    Filed: December 26, 2014
    Publication date: June 30, 2016
    Inventors: David J. Llapitan, Jeffory L. Smalley, Gaurav Chawla, Joshua D. Heppner, Vijaykumar Krithivasan, Jonathan W. Thibado, Kuang Liu, Gregorio Murtagian
  • Publication number: 20160059177
    Abstract: A methanol carbonylation system 10 includes an absorber tower 75 adapted for receiving a vent gas stream and removing methyl iodide therefrom with a scrubber solvent, the absorber tower being coupled to first and second scrubber solvent sources 16, 56 which are capable of supplying different first and second scrubber solvents. A switching system including valves 90, 92, 94, 96, 98 alternatively provides first or second scrubber solvents to the absorber tower and returns the used solvent and sorbed material to the carbonylation system to accommodate different operating modes.
    Type: Application
    Filed: November 6, 2015
    Publication date: March 3, 2016
    Inventors: Raymond J. Zinoble, Tommy W. Doggett, Lun-kuang Liu
  • Patent number: 9229041
    Abstract: An automatic test system includes a mechanical frame, a test device mounted to the mechanical frame for testing the electrical performance and the mechanical performance of the connector, a packing device mounted to the mechanical frame for packing the connector which is completed to be tested, a transmission device mounted to the mechanical frame for transmitting the connector to each workstation of the test device and the packing device, a moving device mounted to the mechanical frame for moving the connector to each workstation of the test device and the packing device corresponding to the transmission device, and a control system electrically connected with and controlling the test device, the packing device, the transmission device and the moving device for completing the transmission, test and packing action of the connector.
    Type: Grant
    Filed: January 29, 2014
    Date of Patent: January 5, 2016
    Assignee: CHENG UEI PRECISION INDUSTRY CO., LTD.
    Inventors: Han Wei Wang, Jung Kuang Liu
  • Publication number: 20150346772
    Abstract: A supporting structure and a docking station using the same are provided. The supporting structure includes an elastic member, a sliding member, a lifting element and a damper. The sliding member having an inclined plane is connected to the elastic member. When the elastic member receives a force, the elastic member forces the sliding member to move along an axis line with the inclined plane facing to the lifting element. The lifting element is arranged over a travel path of the inclined plane and has an abutting portion. When the lifting element receives another force so that the abutting portion abuts against the inclined plane, the sliding member stops moving and the height position of the lifting element is fixed. The damper is mated with the sliding member to slow down the velocity of the sliding member.
    Type: Application
    Filed: November 12, 2014
    Publication date: December 3, 2015
    Inventors: MING-JEN CHEN, KUO-KUANG LIU, YU-CHEN CHU, CHANG-CHENG LIN
  • Publication number: 20150340494
    Abstract: An edge terminal structure of a trench power semiconductor device includes a first conductive-type substrate, a first conductive-type epitaxial layer thereon, a first electrode on a surface of the first conductive-type epitaxial layer, a second electrode on a back of the first conductive-type substrate, a first and a second field plates. The trench power semiconductor device includes an active area and an edge terminal area. A trench is in the surface of the first conductive-type epitaxial layer. The first field plate includes an L-shaped electric-plate, a gate insulation layer below the L-shaped electric-plate, and the first electrode on the L-shaped electric-plate. The second field plate includes a portion of the first electrode and an insulation layer between the portion of the first electrode and the first conductive-type epitaxial layer. The insulation layer covers the tail of the trench and completely covers the L-shaped electric-plate.
    Type: Application
    Filed: August 6, 2015
    Publication date: November 26, 2015
    Inventor: Chu-Kuang Liu
  • Publication number: 20150340450
    Abstract: An edge terminal structure of a power semiconductor device includes a second conductive-type substrate, a first conductive-type buffer layer, a first conductive-type epitaxial layer, a first and a second electrodes, and a first and a second field plates. A trench is in a surface of the first conductive-type epitaxial layer in an edge terminal area beside an active area of the power semiconductor device. The first field plate includes at least a L-shaped electric-plate, a gate insulation layer under the L-shaped electric-plate, and the first electrode on the L-shaped electric-plate. The second field plate includes a portion of the first electrode and at least an insulation layer between the portion of the first electrode and the first conductive-type epitaxial layer. The insulation layer covers the tail of the trench and completely covers the L-shaped electric-plate.
    Type: Application
    Filed: August 6, 2015
    Publication date: November 26, 2015
    Inventor: Chu-Kuang Liu
  • Patent number: 9153652
    Abstract: An edge terminal structure of a power semiconductor device is provided that includes a substrate, a first and a second electrodes disposed on a surface and a back of the substrate respectively, a first field plate, and a second field plate. The power semiconductor device includes an active area and an edge termination area, and there is a trench in a surface of the substrate in the edge terminal area beside the active area. The first field plate is disposed on a sidewall of the trench and extends on a tail of the trench, and it includes at least a L-shaped electric-plate, a gate insulation layer under the L-shaped electric-plate, and the first electrode on the L-shaped electric-plate. The second field plate includes at least an insulation layer and the first electrode thereon. The insulation layer covers the tail of the trench and a tail of the L-shaped electric-plate further.
    Type: Grant
    Filed: September 12, 2012
    Date of Patent: October 6, 2015
    Assignee: Excelliance MOS Corporation
    Inventor: Chu-Kuang Liu
  • Publication number: 20150212142
    Abstract: An automatic test system includes a mechanical frame, a test device mounted to the mechanical frame for testing the electrical performance and the mechanical performance of the connector, a packing device mounted to the mechanical frame for packing the connector which is completed to be tested, a transmission device mounted to the mechanical frame for transmitting the connector to each workstation of the test device and the packing device, a moving device mounted to the mechanical frame for moving the connector to each workstation of the test device and the packing device corresponding to the transmission device, and a control system electrically connected with and controlling the test device, the packing device, the transmission device and the moving device for completing the transmission, test and packing action of the connector.
    Type: Application
    Filed: January 29, 2014
    Publication date: July 30, 2015
    Applicant: Cheng Uei Precision Industry Co., Ltd.
    Inventors: Han Wei Wang, Jung Kuang Liu
  • Patent number: 9071079
    Abstract: The present disclosure provides a power supply system. The power supply system includes a plurality of power supply devices connected in parallel. Output terminals of the plurality of power supply devices are coupled to a common supply line. Each of the plurality of power supply devices includes a DC-to-DC converter, a transformer, a switching control device, a rectifying device, and a judging device. The judging device receives a feedback voltage, an error signal and a second AC voltage to determine whether the power supply device is normal, wherein the feedback voltage is a voltage division of an output voltage on the common supply line, the error signal is an output of the switching control device, and the second AC voltage is retrieved from a second winding set of the transformer.
    Type: Grant
    Filed: October 17, 2011
    Date of Patent: June 30, 2015
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Chu Kuang Liu, Ching Long Tsai, Hung Liang Cho, Wei Hsin Wen
  • Patent number: 8891248
    Abstract: An angle-adjustable support includes a base, a carrier and a pivot mechanism. The base includes a sidewall and a bottom. The sidewall has a first pivot and a second pivot. The pivot mechanism pivotally connects the carrier with the base. The pivot mechanism has three working states. The carrier is locked when the pivot mechanism works in a first working state. The carrier is capable of pivoting relative to the base in a clockwise or anticlockwise when the pivot mechanism works in a second working state. The carrier is free to rotate when the pivot mechanism works in a third working state.
    Type: Grant
    Filed: April 24, 2012
    Date of Patent: November 18, 2014
    Assignees: Universal Scientific Industrial (Shanghai) Co., Ltd., Universal Global Scientific Industrial Co., Ltd.
    Inventors: Yu-Chen Chu, Chang-Cheng Lin, Kuo-Kuang Liu
  • Patent number: 8853591
    Abstract: A surface treatment equipment is designed for forming nickel barriers on a plurality of terminals for preventing solder wicking is disclosed. The surface treatment equipment includes a retractable feeding system, a laser engraving system, an image sensor, and a control system. The retractable feeding system is utilized to transmit a strip that has the terminals. The laser engraving system is utilized to ablate the terminals. The image sensor is utilized to collect a plurality of images of the ablated terminals. The control system receives the images to perform image recognition. When a defective terminal is recognized, the control system controls the retractable feeding system to transmit in reverse and controls the laser engraving system to repeatedly ablate the defective terminal. The defective terminals can be automatically recognized by the image sensor accompanying the control system. Thus, the drawback of a human visual inspection is solved.
    Type: Grant
    Filed: July 14, 2011
    Date of Patent: October 7, 2014
    Assignee: Cheng Uei Precision Industry Co., Ltd.
    Inventors: Han-wei Wang, Jung-kuang Liu, Tsai-sheng Shen
  • Patent number: 8797765
    Abstract: The instant disclosure relates to an angle adjustable device, which includes: a base having a fixing member disposed thereon, where the fixing member has a fixing surface; a switch mechanism having a locking ring, a first gear, and a second gear, while at least one block protrudes from the inner surface of the locking ring, with the first gear having a contact incline slidingly abutted by the block, where the contact incline is defined with a first end and a second end, where the first gear is received by the locking ring and capable of meshing with the second gear; and a rotator having at least one connecting member connected to the second gear. The instant disclosure also discloses an electronic display unit using the same.
    Type: Grant
    Filed: April 19, 2012
    Date of Patent: August 5, 2014
    Assignees: Universal Scientific Industrial (Shanghai) Co., Ltd., Universal Global Scientific Industrial Co., Ltd.
    Inventors: Chang-Cheng Lin, Ming-Jen Chen, Kuo-Kuang Liu