Patent ID: 8273605
Filing Date: 2012-09-25
Classification: G06K,H01L,H01Q

Abstract:
1. A manufacturing method for an electronic device providing an IC chip having an external electrode formed respectively on each of the faces of an opposing pair of faces, a transmission and reception antenna having a slit formed therein and a bridging plate that electrically connects the IC chip and the antenna, having at least the steps of: forming a plurality of antenna circuits using a first metallic film and forming an antenna substrate by disposing the antenna circuits on a base substrate, or forming an antenna substrate by providing a plurality of antenna circuits from the first metallic film disposed on a base substrate; arranging in at least one of a longitudinal orientation or a horizontal orientation, a plurality of the IC chips, with the same intervals therebetween as are required when the plurality of the IC chips are arranged in determined positions with respect to the corresponding circuits of the plurality of antenna circuits that the plurality of the IC chips is mounted thereon; tentatively securing the plurality of IC chips at once, to bridging plates having a second metallic film formed thereon via a first anisotropic conductive adhesive layer such that the plurality of the IC chips thus arranged are electrically connected, and producing bridging plates with the IC chips attached; positionally aligning the bridging plates with IC chips attached in the determined position on the plurality of antenna circuits such that the plurality of the IC chips are electrically connected; and performing thermal compression binding that joins the bridging plates with IC chips attached at once in the determined positions on the antenna substrate via a second anisotropic conductive adhesive layer.