Patent ID: 8354304

Claim:
A method of making a semiconductor package, comprising: providing a post carrier including a base plate and a plurality of conductive posts; forming a photosensitive encapsulant on the base plate of the post carrier to surround the conductive posts; after forming the photosensitive encapsulant on the base plate, etching the photosensitive encapsulant to expose a portion of the base plate; mounting a semiconductor die to the exposed portion of the base plate such that upper surfaces of the conductive posts are disposed above an upper surface of the semiconductor die; depositing a second encapsulant over the semiconductor die; forming a first circuit build-up layer over the second encapsulant, the first circuit build-up layer being electrically connected to the conductive posts; removing the base plate of the post carrier; and after removing the base plate, forming a second circuit build-up layer under the semiconductor die and the photosensitive encapsulant opposite the first circuit build-up layer, the second circuit build-up layer being electrically connected to the conductive posts.