Patent ID: 11948864
Assignee: TOSHIBA ELECTRONIC DEVICES & STORAGE CORPORATION
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 3:
4. The semiconductor device according to claim 2, further comprising:
a second drain electrode spaced from the first drain electrode in the first direction and including:
a fourth drain wiring on the second nitride semiconductor layer and extending in the second direction;
a fifth drain wiring spaced from the fourth drain wiring in the first direction on the second nitride semiconductor layer and extending in the second direction;
a third element isolation region in the second nitride semiconductor layer between positions of the fourth drain wiring and the fifth drain wiring; and
a sixth drain wiring extending in the second direction on the fourth drain wiring and the fifth drain wiring and, wherein

the sixth drain wiring includes a plurality of holes therein aligned with each other along the second direction with spacing between adjacent holes in the second direction decreasing with increasing distance in the second direction from the first wiring.