Patents by Inventor Lee Changhak

Lee Changhak 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: 9431364
    Abstract: A multi-chip package is disclosed that has a construction capable of preventing and/or reducing electrical shorts caused by shifts in bond wires. The multi-chip package includes a die attach formed between connection points of a bond wire. The die attach is made of a non-conductive material and can be constructed so as to support or encompass a portion of the bond wire. By contacting the bond wire, the die attach restricts the motion of the bond wire by acting as a physical barrier to the bond wire's movement and/or as a source of friction. In this manner, undesired position shifts of the bond wires can be prevented, reducing device failures and allowing for improved manufacturing allowances.
    Type: Grant
    Filed: January 7, 2013
    Date of Patent: August 30, 2016
    Assignee: Cypess Semiconductor Corporation
    Inventors: Kiah Ling Tan, Sally Yin Lye Foong, Lee Changhak, Chin Nguk Lai
  • Publication number: 20140191417
    Abstract: A multi-chip package is disclosed that has a construction capable of preventing and/or reducing electrical shorts caused by shifts in bond wires. The multi-chip package includes a die attach formed between connection points of a bond wire. The die attach is made of a non-conductive material and can be constructed so as to support or encompass a portion of the bond wire. By contacting the bond wire, the die attach restricts the motion of the bond wire by acting as a physical barrier to the bond wire's movement and/or as a source of friction. In this manner, undesired position shifts of the bond wires can be prevented, reducing device failures and allowing for improved manufacturing allowances.
    Type: Application
    Filed: January 7, 2013
    Publication date: July 10, 2014
    Applicant: Spansion LLC
    Inventors: Kiah Ling Tan, Sally Yin Lye Foong, Lee Changhak, Chin Nguk Lai