Patent ID: 11876077
Assignee: NANYA TECHNOLOGY CORPORATION
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A method of manufacturing a semiconductor device, comprising:
bonding a second device wafer to a first device wafer, such that a first bonding interface including a fusion-bonding interface is formed between the first device wafer and the second device wafer, wherein the first device wafer and the second device wafer are the same kind of device wafer,
wherein the first device wafer comprises a first dielectric layer and a first conductive portion, the second device wafer comprises a second dielectric layer and a second conductive portion, and the fusion bonding interface is formed by entire surfaces between the first dielectric layer and the second dielectric layer only;
forming an opening, wherein the opening penetrates through the first bonding interface to expose a portion of the second device wafer and a portion of the first device wafer, wherein the first conductive portion and the second conductive portion are exposed by the opening.