Patent ID: 8754521
Filing Date: 2014-06-17
Classification: H01L

Abstract:
1. A packaged semiconductor device, comprising: a package substrate; a semiconductor die on the package substrate; an encapsulant over the semiconductor die and package substrate, wherein the encapsulant comprises a plurality of openings within a perimeter of the semiconductor die, wherein each opening of the plurality of openings comprises a first portion between the bottom surface of the pedestal portion and the semiconductor die and a second portion outside a perimeter of the bottom surface of the pedestal portion and inside the perimeter of the semiconductor die; a heat spreader having a pedestal portion and an outer portion surrounding the pedestal portion, wherein a bottom surface of the pedestal portion faces the top surface of the semiconductor die, wherein a first portion of the opening and at least a portion of the encapsulant is between the bottom surface of the pedestal portion and the semiconductor die.