Patent ID: 11894436
Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
Field: Semiconductors (Electrical engineering)
Classification: CPC H  B | IPC H

Claim 0:
1. A CFET (complementary field effect transistor) structure comprising:
a substrate;
a first CFET formed above the substrate; and
a second CFET formed above the substrate;
wherein:
the first CFET comprises a top FET and a bottom FET, each of the top FET and bottom FET comprises at least one nanosheet channel, the top FET and bottom FET separated by a dielectric layer;
a gate affiliated with the first CFET and the second CFET devices comprising a continuous horizontal dielectric over the entire length of the gate;
the top FET of each stacked FET comprises a first polarity;
the bottom FET of each stacked FET comprises a second polarity;
the top FET of the first CFET comprises a first work function metal; and
the top FET of the second CFET comprises a second work function metal.