Patent ID: 11949398
Assignee: SHENZHEN NEWSONIC TECHNOLOGIES CO., LTD.
Field: Basic communication processes (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A semiconductor device, comprising:
a first sub-semiconductor structure, comprising a dielectric layer; and
a second sub-semiconductor structure, at least comprising a carrier substrate, and being bonded to the first sub-semiconductor structure,
wherein the first sub-semiconductor structure or the second sub-semiconductor structure comprises a charge accumulation preventing layer, and the charge accumulation preventing layer is disposed between the carrier substrate and the dielectric layer, and is configured to avoid an undesired conductive channel from being generated due to charge accumulation on a surface of the carrier substrate;
wherein the second sub-semiconductor structure comprises a barrier layer, the barrier layer is disposed on the carrier substrate and between the carrier substrate and the dielectric layer, and the barrier layer is in direct contact with the carrier substrate and serves as the charge accumulation preventing layer; and
wherein the barrier layer is a multi-layer structure, and the barrier layer comprises a stack layer comprising at least two selected from a group consisting of polysilicon, amorphous silicon, silicon nitride, silicon carbide, aluminum nitride, gallium nitride and silicon oxide, and wherein a surface layer of the barrier layer contacting the carrier substrate does not include silicon oxide.