Patent ID: 11864308
Assignee: FUJIKURA LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A substrate in which a through-hole is formed from a first surface to a second surface which is a surface opposite to the first surface, the substrate comprising:
two first through-holes to which high-frequency signals are transmitted and which are arranged side by side so as to have a predetermined distance;
at least three reference potential second through-holes arranged side by side so as to have an distance smaller than the predetermined distance with respect to the two first through-holes; and
a plurality of third through-holes to which non-high-frequency signals different from the high-frequency signals are transmitted, wherein
among three of the second through-holes, one of the second through-holes is arranged in a region between the two first through-holes,
other two of the second through-holes are arranged in a region other than the region between the first through-holes such that
one of the other two second through-holes is arranged side by side with respect to one of the two first through-holes, and
the other of the other two second through-holes is arranged side by side with respect to the other of the two first through-holes, and

a distance between the first through-holes is different from a distance between the third through-holes.