US Patent 7237724 Smart card and method for manufacturing a smart card

A smart card and a method for manufacturing the same wherein the smart card is composed of a printed circuit board, having a top surface and a bottom surface, a plurality of circuit components attached to the top surface of the printed circuit board, a filler board, attached to the top surface of the printed circuit board, a bottom overlay attached to the bottom surface of the printed circuit board, a top overlay positioned above the top surface of the printed circuit board and a thermosetting polymeric layer positioned between the top surface of the printed circuit board and the top overlay.