Three-dimensional structure in which wiring is provided on its surface
One aspect of the present invention is a three-dimensional structure in which a wiring is formed on a surface, the three-dimensional structure having an insulating resin layer that contains a filler formed from at least one element selected from typical non-metal elements and typical metal elements, wherein a recessed gutter for wiring is formed on a surface of the insulating resin layer, and at least a part of a wiring conductor is embedded in the recessed gutter for wiring.
1. A three-dimensional structure in which a wiring is provided on a surface, comprising:
an insulating resin layer that contains a filler comprising at least one element selected from typical non-metal elements and typical metal elements,
wherein a recessed wiring gutter is provided in a surface of the insulating resin layer, and at least a part of a wiring conductor is embedded in the recessed wiring gutter,
wherein an average particle size of the filler is equal to or less than 1/2 of a width of the recessed wiring gutter and is 0.01 μm to 10 μm.
2. The three-dimensional structure according to claim 1 , wherein at least a part of the recessed wiring gutter has a width of 20 μm or less.