Patent ID: 11189571

Abstract:
The electronic circuit device according to the present invention including the wiring layer 13 including a plurality of the metal wirings, the photosensitive resin layer 21 made of the photosensitive resin arranged on the wiring layer 13, and the first electronic circuit element 33 arranged in the photosensitive resin layer 21. In this electronic circuit device, a plurality of opening 41 for exposing a part of the wiring layer 13 is formed on the photosensitive resin layer 21, and further, together with three-dimensionally connected to the first electronic circuit element 33, the re-distribution layer 42 on the first electronic circuit element including a plurality of the metal wirings which is three-dimensionally connected via a plurality of openings to a part of the wiring layer 13, and the first external connection terminal 51 connected to the re-distribution layer 42 are formed.