Patent ID: 11950410
Assignee: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 2:
3. A semiconductor device comprising:
a first transistor comprising:
a first conductor;
a first insulator over the first conductor;
a second conductor, a first oxide, a third conductor over the first insulator, the first oxide being between the second conductor and the third conductor;
a second insulator over the second conductor, the first oxide, and the third conductor; and
a fourth conductor over the second insulator;
a second transistor comprising:
the second conductor;
a cylindrical third insulator; and
a second oxide in the cylindrical third insulator;

a first wiring electrically connected to one of source and drain of the second transistor; and
a second wiring electrically connected to the other of source and drain of the second transistor,
wherein the second conductor is electrically connected to one of source and drain of the first transistor, and
wherein the third conductor is electrically connected to a gate of the second transistor and the other of source and drain of the first transistor.