Patent ID: 9136212
Filing Date: 2015-09-15
Classification: H01L,H05K

Abstract:
1. A circuit board comprising: a flexible laminated body including a laminate of a plurality of insulating-material layers made of a flexible material, a first external electrode provided on a top surface of the flexible laminated body and on which an electronic component is to be mounted; and a plurality of film-shaped conductors each of which, when viewed in plan in a lamination direction of the flexible laminated body, is provided on a respective insulating-material layer of the plurality of insulating-material layers; wherein an area of each of the plurality of film-shaped conductors is larger than an area of the first external electrode, and the entire first external electrode, when viewed in plan in the lamination direction of the flexible laminated body, is overlapped with the plurality of film-shaped conductors; the plurality of film-shaped conductors, when viewed in plan in a lamination direction of the laminated body, are not connected to one another through via hole conductors in regions in which the plurality of film-shaped conductors are overlapped with the first external electrode; and when the flexible laminated body is bent, the film-shaped conductor is displaced by a greater amount than an amount by which the first external electrode is displaced; and each of the plurality of film-shaped conductors is provided in an area of the respective insulating-material layer under the first external electrode and is spaced away from all edges of the respective insulating-material layer.