Patents by Inventor Ka Kin Wong

Ka Kin Wong 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).

  • Configurable power supply system for machine components
    Patent number: 6967854
    Abstract: The invention provides a power supply system and a method for providing a power supply for a machine having a plurality of components. The system comprises a power source and a set of two or more voltage converters connected in parallel and coupled to the power source via a common bus. An electrical supply line is coupled to an output of the set of voltage converters for supplying a required voltage to the components of the machine connected to the electrical supply line.
    Type: Grant
    Filed: October 30, 2003
    Date of Patent: November 22, 2005
    Assignee: ASM Assembly Automation Ltd.
    Inventors: Kam Kwong Lai, Ka Kin Wong, Chi Wah Kadett Yuen, Chi Wai Jeff Tang
  • Apparatus and method for ball release
    Patent number: 6607118
    Abstract: There is disclosed a method and apparatus for ensuring release of objects such as solder balls from a pick head in a transfer and placement apparatus, comprising causing said pick head to vibrate by applying a vibration signal to said pick head over a range of frequencies. The range of frequencies is chosen such that it bounds the resonant frequencies of the pick head which may be calculated by computer simulation.
    Type: Grant
    Filed: April 30, 2001
    Date of Patent: August 19, 2003
    Assignee: ASM Assembly Automation Limited
    Inventors: Chi Wah Cheng, Ping Kong Joseph Choy, Ping Chun Benson Chong, Ka Kin Wong, Chi Fung Chan
  • Apparatus and method for ball release
    Publication number: 20020158108
    Abstract: There is disclosed a method and apparatus for ensuring release of objects such as solder balls from a pick head in a transfer and placement apparatus, comprising causing said pick head to vibrate by applying a vibration signal to said pick head over a range of frequencies. The range of frequencies is chosen such that it bounds the resonant frequencies of the pick head which may be calculated by computer simulation.
    Type: Application
    Filed: April 30, 2001
    Publication date: October 31, 2002
    Inventors: Chi Wah Cheng, Joseph Ping Kong Choy, Benson Ping Chun Chong, Ka Kin Wong, Chi Fung Chan