Patents by Inventor Liow Eng Keng

Liow Eng Keng 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).

  • Stress-free lead frame
    Patent number: 7786554
    Abstract: The present invention relates to a stress-free lead frame (1) for a semiconductor. The stress-free lead frame (1) is provided with a stress-relief means (15) and an interlocking means (16) at the outer periphery. The stress-relief means (15) is capable of accommodating expansion and compression while the interlocking means (16) take care of shock and vibration during handling to thereby eliminate delamination of the lead frame (10).
    Type: Grant
    Filed: October 5, 2007
    Date of Patent: August 31, 2010
    Assignee: Carsem (M) Sdn. Bhd.
    Inventors: Lee Kock Huat, Chan Boon Meng, Cheong Mun Tuck, Lee Huan Sin, Phuah Kian Keung, Araventhan Eturajulu, Liow Eng Keng, Thum Min Kong, Chen Choon Hing
  • Stress-free lead frame
    Patent number: 7288833
    Abstract: The present invention relates to a stress-free lead frame (1) for a semiconductor. The stress-free lead frame (1) is provided with a stress-relief means (15) and an interlocking means (16) at the outer periphery. The stress-relief means (15) is capable of accommodating expansion and compression while the interlocking means (16) take care of shock and vibration during handling to thereby eliminate delamination of the lead frame (10).
    Type: Grant
    Filed: December 23, 2004
    Date of Patent: October 30, 2007
    Assignee: Carsem (M) Sdn. Bhd.
    Inventors: Lee Kock Huat, Chan Boon Meng, Cheong Mun Tuck, Lee Huan Sin, Phuah Kian Keung, Araventhan Eturajulu, Liow Eng Keng, Thum Min Kong, Chen Choon Hing
  • Stress-free lead frame
    Patent number: 6867483
    Abstract: The present invention relates to a stress-free lead frame (1) for a semiconductor. The stress-free lead frame (1) is provided with a stress-relief means (15) and an interlocking means (16) at the outer periphery. The stress-relief means (15) is capable of accommodating expansion and compression while the interlocking means (16) take care of shock and vibration during handling to thereby eliminate delamination of the lead frame (10).
    Type: Grant
    Filed: July 20, 2001
    Date of Patent: March 15, 2005
    Assignee: Carsen Semiconductor SDN. BHD.
    Inventors: Lee Kock Huat, Chan Boon Meng, Cheong Mun Tuck, Lee Huan Sin, Phuah Kian Keung, Araventhan Eturajulu, Liow Eng Keng, Thum Min Kong, Chen Choon Hing
  • Stress-free lead frame
    Publication number: 20020105063
    Abstract: The present invention relates to a stress-free lead frame (1) for a semiconductor. The stress-free lead frame (1) is provided with a stress-relief means (15) and an interlocking means (16) at the outer periphery. The stress-relief means (15) is capable of accommodating expansion and compression while the interlocking means (16) take care of shock and vibration during handling to thereby eliminate delamination of the lead frame (10).
    Type: Application
    Filed: July 20, 2001
    Publication date: August 8, 2002
    Inventors: Lee Kock Huat, Chan Boon Meng, Cheong Mun Tuck, Lee Huan Sin, Phuah Kian Keung, Araventhan Eturajulu, Liow Eng Keng, Thum Min Kong, Chen Choon Hing