Patent ID: 7986043

Claim:
A method of manufacture of an integrated circuit package on package system comprising: forming an interconnect integrated circuit package having an integrated circuit and an interconnect package encapsulant on a substrate; forming an extended-lead integrated circuit package having an extended-lead package encapsulant with a die paddle exposed and an extended lead having an extension from the extended-lead package encapsulant with clearance for the interconnect package encapsulant; attaching the extended-lead to the substrate with the extended-lead package encapsulant facing the interconnect package encapsulant; and applying a package encapsulant over and on the substrate locking the extended lead to the substrate, locking the interconnect package encapsulant to the substrate, and locking the extended lead to the extended-lead package encapsulant with the extended lead exposed from both the package encapsulant and the extended-lead package encapsulant.