Patent ID: 7816774

Claim:
A flexible semiconductor device comprising: a semiconductor substrate defining an active area and having a first surface and a second surface, the first surface being opposite the second surface, wherein the semiconductor substrate is formed from a semiconductor layer; an integrated circuit provided with a plurality of semiconductor elements located at the active area of the semiconductor substrate at the first surface of the semiconductor substrate, the semiconductor substrate having a suitable thickness so as to be flexible, wherein the plurality of semiconductor elements are interconnected according to a desired pattern in an interconnect structure, a mask formed over the second surface of the semiconductor substrate, a support layer of electrically insulating material, and an antenna, which is located laterally outside the active area and is electrically connected to the interconnect structure, the antenna and the integrated circuit being supported by the support layer, wherein the mask is substantially confined at the active area over the integrated circuit and protects the integrated circuit during removal of potions of the semiconductor layer which are not covered by the mask so that the semiconductor substrate is also present in areas not directly above the integrated circuit, and the semiconductor substrate is absent in other areas between the antenna and the integrated circuit.