Patents Represented by Attorney, Agent or Law Firm Constance F. Ramos
  • Patent number: 6420779
    Abstract: An embodiment of the invention in a quad flat no-lead package is described. The package is produced by encapsulating an integrated circuit chip, a die pad to which the chip is affixed, and leads which are connected to the chip in a molding compound. Leads are positioned on all four sides of the package, the exposed (bottom) portions of the leads are coplanar with the bottom of the package, and the leads do not extend, or extend only slightly, beyond the area of the package. The package includes a die pad also having an exposed (bottom) portion that is coplanar with the bottom of the package. The top portions of the leads are coplanar with the top surface of the die pad, and are flat.
    Type: Grant
    Filed: September 14, 1999
    Date of Patent: July 16, 2002
    Assignee: ST Assembly Test Services Ltd.
    Inventors: Nirmal K. Sharma, Rahamat Bidin, Hien Boon Tan