Patent ID: 11961840
Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H  B | IPC H

Claim 19:
20. The method of claim 19, further comprising:
forming a high-K dielectric layer to surround the first dipole layer and the second dipole layer, respectively;
forming a third dipole layer on the high-K dielectric layer surrounding the first group of the plurality of first semiconductor layers, wherein the third dipole layer comprises a third dipole material having the first polarity;
forming a fourth dipole layer on the high-K dielectric layer surrounding the second group of the plurality of first semiconductor layers, wherein the fourth dipole layer comprises a fourth dipole material having the second polarity opposite of the first polarity; and
subjecting the third and fourth dipole layers to a second thermal treatment.