Patent ID: 7776650

Claim:
A method for fabricating a system in package, the method comprising: preparing a printed circuit board (PCB) strip having a first surface and a second surface, the PCB strip comprising a plurality of individual PCBs electrically isolated from one another; stacking a plurality of first semiconductor devices and forming an encapsulant on a first surface of a first individual PCB of the plurality of individual PCBs to form a first semiconductor device stack structure comprising a first semiconductor device stack corresponding to the first individual PCB; performing a first test adapted to test one of the first semiconductor devices in the first semiconductor device stack; dividing the first semiconductor device stack structure to form a semiconductor memory device stack package comprising the first individual PCB; sorting the semiconductor memory device stack package in accordance with a result of the first test; and, flip chip bonding a second semiconductor device to a second surface of the first individual PCB if the semiconductor memory device stack package meets a test standard based on the result of the first test.