Patents by Inventor HENG LEE LEE

HENG LEE LEE 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: 9443747
    Abstract: An apparatus for picking and placing or for picking and transferring or for picking, placing and pressing semiconductor components (10) is disclosed. The apparatus (10) comprises a motor for generating power to rotate a turret (6) which holds a plurality of pick up heads (7), a plurality of pressers (8), wherein each of said pressers (8) is a voice coil assembly (3) which consist of voice coil actuator assemblies (31), at least one stationary frame (1, 2) to secure said voice coil assemblies (3) and a controller means to control the direction and magnitude of displacement of said voice coil actuator assemblies (31). When current flows into voice coil in said voice coil actuator assembly (31), electromagnetic force is generated in vertical direction, forcing said actuators to press said pick up heads (7) located directly below said actuators at a particular moment, which in turn reaches to and press on wafers or semiconductor components located below said pick up heads.
    Type: Grant
    Filed: January 27, 2014
    Date of Patent: September 13, 2016
    Assignee: EXIS TECH SDN BHD
    Inventor: Heng Lee Lee
  • Publication number: 20160240416
    Abstract: The present invention relates to a device (1) and method for conveying and flipping a component (10) for use in conjunction with a rotary turret module (30). The device (1) includes at least a pair of spaced apart flipping arms, a first and second flipping arms (100 and 300) mounted on a platform (500). Each of the flipping arms (100, 300) is provided with one nozzle (110, 310) having one end (111) configured to pick the component (10) and another end (311) fixedly mounted on a shaft (130, 330) supported on the flipping arm (100, 300) and is operatively connected to a rotary actuating means (150, 350). The rotary actuating means (150, 350) is adapted to be capable of affecting a rotational motion of the shaft (130, 330), thereby rotating the nozzles (110, 310) in a counter direction by substantially 90 degrees. The device is also provided with a linear actuating means (400) suitably mounted on the platform (500).
    Type: Application
    Filed: June 12, 2015
    Publication date: August 18, 2016
    Inventor: HENG LEE LEE
  • Patent number: 9134342
    Abstract: The invention discloses a semiconductor components delivery system associated with a turret type testing apparatus for testing integrity and functionality of semiconductor components wherein at least two input feeders loadable with semiconductor components to be vision checked, tested and/or packed are provided. The delivery system is also provided with multiple output means such as a tube, a tape or a bin or a combination thereof for semiconductor components determined to be non defective.
    Type: Grant
    Filed: May 24, 2013
    Date of Patent: September 15, 2015
    Assignee: EXIS TECH SDN BHD
    Inventor: Heng Lee Lee
  • Publication number: 20140212246
    Abstract: An apparatus for picking and placing or for picking and transferring or for picking, placing and pressing semiconductor components (10) is disclosed. The apparatus (10) comprises a motor for generating power to rotate a turret (6) which holds a plurality of pick up heads (7), a plurality of pressers (8), wherein each of said pressers (8) is a voice coil assembly (3) which consist of voice coil actuator assemblies (31), at least one stationary frame (1, 2) to secure said voice coil assemblies (3) and a controller means to control the direction and magnitude of displacement of said voice coil actuator assemblies (31). When current flows into voice coil in said voice coil actuator assembly (31), electromagnetic force is generated in vertical direction, forcing said actuators to press said pick up heads (7) located directly below said actuators at a particular moment, which in turn reaches to and press on wafers or semiconductor components located below said pick up heads.
    Type: Application
    Filed: January 27, 2014
    Publication date: July 31, 2014
    Applicant: EXIS TECH SDN BHD
    Inventor: HENG LEE LEE
  • Publication number: 20130314113
    Abstract: The invention discloses a semiconductor components delivery system associated with a turret type testing apparatus for testing integrity and functionality of semiconductor components wherein at least two input feeders loadable with semiconductor components to be vision checked, tested and/or packed are provided. The delivery system is also provided with multiple output means such as a tube, a tape or a bin or a combination thereof for semiconductor components determined to be non defective.
    Type: Application
    Filed: May 24, 2013
    Publication date: November 28, 2013
    Applicant: EXIS TECH SDN BHD
    Inventor: HENG LEE LEE