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

Claim 16:
17. A method for manufacturing a semiconductor device structure, comprising:
providing a substrate;
forming a first nitride semiconductor layer on the substrate;
forming a second nitride semiconductor layer on the first nitride semiconductor layer;
forming a third nitride semiconductor layer on the second nitride semiconductor layer;
forming a first electrode on the second nitride semiconductor layer, wherein the first electrode is horizontally spaced apart from the third nitride semiconductor layer;
forming an opening 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; and
forming a second electrode having a reversed L shape to cover an upper surface of the third nitride semiconductor layer and fill the opening, such that the second electrode is in contact with both the first nitride semiconductor layer and the third nitride semiconductor layer.