Patent ID: 11972985
Assignee: NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY
Field: Semiconductors (Electrical engineering)
Classification: CPC H  B | IPC B  H

Claim 0:
1. A complementary switch device comprising:
a first tunnel field-effect transistor including a channel of a first conductivity type; and
a second tunnel field-effect transistor including a channel of a second conductivity type different from the first conductivity type,
wherein each of the first tunnel field-effect transistor and the second tunnel field-effect transistor includes:
a IV group semiconductor substrate including a (111) surface, and doped in the first conductivity type;
a III-V group compound semiconductor nanowire disposed on the (111) surface, and including a first region connected to the (111) surface and a second region doped in the second conductivity type;
a first electrode connected to the IV group semiconductor substrate;
a second electrode connected to the second region; and
a gate electrode configured to apply an electric field to an interface between the (111) surface and the first region;

wherein the first tunnel field-effect transistor and the second tunnel field-effect transistor have the same configuration;
wherein the IV group semiconductor substrate of the first tunnel field-effect transistor and the IV group semiconductor substrate of the second tunnel field-effect transistor are both doped in the first conductivity type;
wherein in the first tunnel field-effect transistor, the second electrode is a source electrode, and the first electrode is a drain electrode;
in the second tunnel field-effect transistor, the first electrode is a source electrode, and the second electrode is a drain electrode; and
a positional relationship between the source electrode and the drain electrode is reversed in the first tunnel field-effect transistor and the second tunnel field-effect transistor.