Patent ID: 11916073
Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
Field: Semiconductors (Electrical engineering)
Classification: CPC H  B | IPC H

Claim 6:
7. A complementary field effect transistor (CFET) structure comprising:
a first transistor disposed above a second transistor;
a first source/drain region of the first transistor disposed above a second source/drain region of the second transistor, wherein the first source/drain region comprises a smaller cross-section than the second source/drain region;
a first dielectric material disposed between the first transistor and the second transistor;
a second dielectric material disposed in contact with a bottom surface and vertical surfaces of the first source/drain and further in contact with a vertical surface and top surface of the second source/drain region;
a third source/drain region of the first transistor disposed above a fourth source/drain region of the second transistor; and
a first metal contact disposed around and in contact with each of the third source/drain region and fourth source/drain region.