| 摘要 |
PROBLEM TO BE SOLVED: To provide a substrate that allows preventing damage which, for example, a base material receives, while suppressing the number of dummy electrodes to be formed.SOLUTION: A substrate includes: a base material having a predetermined thickness; wiring provided on the base material; an electrode part 20 provided on one surface in the thickness direction of the base material and having a plurality of circuit electrodes 20a connected to the wiring; and a dummy region 21 provided on the same surface as the surface on which the electrode part is provided and having a plurality of dummy electrodes 21a that are not connected to the wiring. In at least a part of the dummy region, the plurality of dummy electrodes are disposed at a predetermined dummy pitch A1, and are disposed as a dummy electrode aggregate 22 in which the maximum value of the inter-dummy electrode distance is set to be less than or equal to a predetermined value. |
