Semiconductor device

A semiconductor device comprising:

• a plurality of first wirings extending in a first direction, the plurality of first wirings are arranged adjacent to each other in a second direction on a layer level;
• a second wiring that is apart from the plurality of first wirings in the second direction on the layer level;
• and
• a plurality of dummy wirings arranged between the plurality of first wirings and the second wiring on the layer level, wherein the plurality of dummy wirings are arranged at a plurality of crossing points between first virtual linear lines extending in a third direction and second virtual linear lines extending in a fourth direction, wherein:
• the third direction and the fourth direction are neither parallel nor orthogonal to the first direction and the second direction,
• the plurality of dummy wirings having:
• a first dummy wiring;
• a second dummy wiring;
• and
• a third dummy wiring, wherein centers of the second dummy wiring and the third dummy wiring are nearest to a center of the first dummy wiring relative to others of the plurality of dummy wirings, and
• the respective centers of the first dummy wiring, the second dummy wiring, and the third dummy wiring are aligned on a third virtual linear line extending in a fifth direction neither parallel to nor perpendicular to the first direction and the second direction.