Patent ID: 6946323
Filing Date: 2005-09-20
Classification: H01L

Abstract:
1. A method of making a semiconductor device, comprising: providing a prepackaged semiconductor device comprising a first substrate having a first side and an opposite second side, a first semiconductor die coupled to the first substrate, a plurality of first conductors electrically connecting the first semiconductor die to the first side of the first substrate, and a first encapsulant material covering the first side of the first substrate, the first semiconductor die, and the plurality of first conductors, the first encapsulant material having a first exterior surface opposite the first side of the first substrate; providing a second substrate having a first side and a second side; mounting the prepackaged semiconductor device on the first side of the second substrate, and electrically connecting the second side of the first substrate of the prepackaged semiconductor device to the first side of the second substrate, whereby the first semiconductor die of the prepackaged semiconductor device is electrically connected to the second substrate through the first substrate; stacking a second semiconductor die on the first exterior surface of the first encapsulant material; electrically connecting the second semiconductor die to the first side of the second substrate outward of the prepackaged semiconductor device with at least one second conductor; covering the prepackaged semiconductor device, the first side of the second substrate, the second semiconductor die, and the at least one second conductor with a second encapsulant material by molding; stacking a third semiconductor die on the second semiconductor die; electrically connecting the third semiconductor die to the first side of the second substrate outward of the prepackaged semiconductor device with at least one third conductor; and covering the third semiconductor die and the at least one third conductor with the second encapsulant material.