Patent ID: 6355502
Filing Date: 2002-03-12
Classification: H01L

Abstract:
A method for making a semiconductor package comprising:providing a leadframe having a first surface and a corresponding second surface, wherein the leadframe includes at least a package unit that includes a plurality of leads, and each of the lead includes a neck portion; attaching the second surface of the leadframe to a tape; performing a punching process to cut off the leads at the neck portion location so as to form a plurality of conductive blocks; providing a chip having an active surface and a corresponding back surface, wherein the active surface has a plurality of bonding pads, and the chip has its back surface attached to the tape; providing electrical connection between the bonding pads and the first surface of the conductive blocks by using a plurality of bonding wires; performing an encapsulating process to encapsulate the chip, the bonding wires, and the first surfaces of the conductive blocks; performing a singulating process to separate the package units from the leadframe; and performing a detaping process to expose the second surface of the conductive blocks.