a first insulating layer consisting of resin;

a conductive pattern disposed on the first insulating layer, the conductive pattern having a first terminal, a second terminal, and a wire that electrically connects the first terminal and the second terminal;

a protective layer disposed between the first insulating layer and the conductive pattern and protecting the conductive pattern; and

a second insulating layer disposed on the first insulating layer and covering the wire without covering at least a part of the first terminal and at least a part of the second terminal,

wherein the protective layer consists of a metal oxide.