Patent ID: 7994617
Filing Date: 2011-08-09
Classification: G06K,H01L

Abstract:
1. A semiconductor device comprising: an integrated circuit comprising a transistor; an antenna configured to receive a signal from a reader/writer wirelessly; a first sealing film; a second sealing film; a protective layer; a substrate; and an adhesive, wherein the integrated circuit and the antenna are electrically connected to each other, the antenna is covered with the protective layer; the integrated circuit is sandwiched between the first sealing film and the second sealing film, the first sealing film is sandwiched between the substrate and the integrated circuit, the first sealing film is attached to the substrate with the adhesive, the first sealing film includes a plurality of first insulating films and one or a plurality of second insulating films sandwiched between the plurality of first insulating films, the second sealing film includes a plurality of third insulating films and one or a plurality of fourth insulating films sandwiched between the plurality of third insulating films, the one or the plurality of second insulating films has lower stress than the plurality of first insulating films, the one or the plurality of fourth insulating films has lower stress than the plurality of third insulating films, the plurality of first insulating films and the plurality of third insulating films are inorganic insulating films, the adhesive over the substrate, the first sealing film over the adhesive, the integrated circuit over the first sealing film, the antenna over the integrated circuit, and the protective layer over the antenna are covered with the second sealing film, and the second sealing film is partly in contact with the substrate.