Patent ID: 9312194
Filing Date: 2016-04-12
CPC Classification: H01L

Claim Text:
1. A method of manufacture of an integrated circuit packaging system comprising: providing a leadframe, of a first metal, having a leadframe platform region; forming a mounting platform on the leadframe platform region by depositing the mounting platform, of a second metal, on the leadframe platform region; applying an attach layer directly on the mounting platform; mounting an integrated circuit die on the attach layer, the attach layer completely covering a non-active side of the integrated circuit die; forming an encapsulation on the integrated circuit die and the attach layer; etching the leadframe platform region, to completely remove the first metal, for exposing an entire area of the second metal as a platform bottom side of the mounting platform from the encapsulation and for forming an encapsulation cavity at an encapsulation bottom surface of the encapsulation; and forming a terminal having a terminal protrusion from the leadframe, the terminal protrusion below the platform bottom side of the mounting platform and the encapsulation separating the terminal from contact with the mounting platform; wherein the first metal is different from the second metal.