Patent ID: 7902676

Claim:
A stacked semiconductor device, comprising: a first flexible layer and a second flexible layer combined together, serving as a flexible substrate body, the second flexible layer having a surface with a first circuit layer disposed thereon, and the flexible substrate body being bent somewhere such that a surface of the first flexible layer itself is face-to-face clipped, wherein the first circuit layer is free from being in contact with the first flexible layer; at least two semiconductor chips each embedded in the first and second flexible layers of the flexible substrate body, and having an active surface embedded in the second flexible layer and an opposing inactive surface embedded in the first flexible layer, wherein the active surface has a plurality of electrode pads thereon and electrically connected to the first circuit layer by a plurality of first conductive vias disposed in the second flexible layer; and an adhesive layer sandwiched in a gap between the face-to-face surface of the first flexible layer so as to stack up the semiconductor chips.