Patent ID: 7977161

Claim:
A method of manufacturing a semiconductor package, comprising: providing a carrier; forming a post slot and a terminal slot in the carrier; depositing a post in the post slot; depositing a terminal in the terminal slot; forming an encapsulant slot in the carrier by: depositing a photoresist layer over a surface of the carrier, wherein the photoresist layer includes an encapsulant slot opening that exposes the post and at least a portion of the terminal; applying a wet chemical etch that is highly selective of the carrier with respect to the post and the terminal through the encapsulant slot opening to the carrier, the post and the terminal, thereby selectively removing a portion of the carrier to form the encapsulant slot without appreciably affecting the post and the terminal; and then removing the photoresist layer from the carrier, wherein the post extends into and is located within a periphery of the encapsulant slot and the terminal extends into the encapsulant slot; mechanically attaching a semiconductor chip to the post; electrically connecting the semiconductor chip to the terminal; depositing an encapsulant in the encapsulant slot; and removing the carrier from the terminal.