Patent ID: 11973135
Assignee: NISSAN MOTOR CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 4:
5. The semiconductor device according to claim 2, comprising:
a first semiconductor device that is the semiconductor device according to claim 2;
a second semiconductor device that is the semiconductor device according to claim 2 and is adjacent in an extending direction of the main groove provided in the first semiconductor device, and
a stress relaxation structure that relaxes stress applied to at least one of the semiconductor region or the electron supply region in an extending direction of the main groove,
wherein as the stress relaxation structure, a first main groove that is the main groove provided in the first semiconductor device, and a second main groove that is the main groove provided in the second semiconductor device are connected by a connection groove that has a crystal face exposed, which is different from the side surfaces of the first main groove and the second main groove, on at least a part of side surfaces thereof.