Semiconductor package having a heat spreader with an exposed exterior surface and a top mold gate

摘要

A semiconductor device has a substrate. A die is attached to a first surface of the substrate. A heat sink is provided having an approximately planer member and support members extending from the planer member. The support members are attached to the first surface of the substrate to form a cavity over the die with the planer member positioned above the die. An encapsulant is provided for encapsulating the device, wherein an exterior surface of the planer member is exposed. A non-tapered opening is formed in the planer member. The encapsulant is injected through the opening to encapsulate the cavity and the encapsulant will partially fill the non-tapered opening.