Patent ID: 11955472
Assignee: GLOBALFOUNDRIES U.S. INC.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 11:
12. The structure of claim 8,
wherein the hybrid semiconductor substrate has a lower portion between the back side and the first Pwell, the first Nwell, the second Pwell, and the second Nwell,
wherein the lower portion of the hybrid semiconductor substrate has P-type conductivity at a lower P-type conductivity level than the first Pwell, and
wherein the second Pwell has any one of:
an essentially uniform P-type dopant profile and a higher P-type conductivity level than the lower portion of the hybrid semiconductor substrate; and
a graded P-type dopant profile with a relatively high P-type conductivity level adjacent to the lower portion of the hybrid semiconductor substrate and a relatively low P-type conductivity level adjacent to the insulator layer.