Patent ID: 11942560
Assignee: INNOSCIENCE (ZHUHAI) TECHNOLOGY CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A semiconductor device structure, comprising:
a substrate;
a first nitride semiconductor layer disposed on the substrate;
a second nitride semiconductor layer disposed on the first nitride semiconductor layer and having a bandgap greater than that of the first nitride semiconductor layer;
a third nitride semiconductor layer disposed on the second nitride semiconductor layer;
a first electrode disposed on the second nitride semiconductor layer and horizontally spaced apart from the third nitride semiconductor layer; and
a second electrode covering an upper surface of the third nitride semiconductor layer and in direct contact with the first nitride semiconductor layer,
wherein the second electrode has a reversed L shape, and comprises a first part covering the third nitride semiconductor layer, and a second part penetrating the second nitride semiconductor layer and extending into the first nitride semiconductor layer, wherein a depth of the extending is less than a thickness of the first nitride semiconductor layer.