Patent ID: 7838980
Filing Date: 2010-11-23
Classification: H01L

Abstract:
1. A lead frame for a high power surface mounted semiconductor package, the lead frame comprising: a die attach pad having a die attachment surface, a first and an opposing second edge; an elongate ground lead that directly connects to said first edge of the die attach pad and extends in a first direction; a plurality of elongate (I/O) leads arranged about the die attach pad, said leads also extending in said first direction; and an up-set bonding pad that is directly connected to said second edge of the die attach pad by a pair of conductive tabs such that the up-set bonding pad is electrically connected to the elongate ground lead through the die attach pad, the up-set bonding pad including a bonding support surface configured to support a plurality of wire bonds and arranged to be raised by the pair of conductive tabs above a plane defined by the die attachment surface, there being a space framed by the pair of conductive tabs, the up-set bonding pad and the die attach pad that forms a mold flow aperture, the mold flow aperture arranged to allow molding material that is injected around the lead frame to flow through the mold flow aperture to help lock the molding material around the bonding support surface on the up-set bonding pad.