主权项 |
1. A stretchable circuit board comprising a sheet-like stretchable base capable of stretching and contracting, a stretchable interconnect part formed on or above at least one major surface of the stretchable base, and an external terminal connected to the interconnect part,
the stretchable circuit board having a reinforcing area having in-plane rigidity higher than that of the stretchable base, and a stretchable area which remains after excluding the reinforcing area, the interconnect part being formed across a boundary part between the reinforcing area and the stretchable area, and a sheet-like stretchable auxiliary member, capable of stretching and contracting, being provided to the boundary part having the interconnect part formed therein. |