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

Claim 3:
4. 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 first region including a (111) surface, and a second region doped in the first conductivity type;
a III-V group compound semiconductor nanowire disposed on the (111) surface, the III-V group compound semiconductor nanowire being undoped, or doped in the second conductivity type;
a first electrode connected to the III-V group compound semiconductor nanowire;
a second electrode connected to the second region; and
a gate electrode configured to apply an electric field to an interface between the III-V group compound semiconductor nanowire and the (111) surface;

wherein the first tunnel field-effect transistor and the second tunnel field-effect transistor have the same configuration;
wherein the second region of the first tunnel field-effect transistor and the second region of the second tunnel field-effect transistor are both doped in the first conductivity type;
wherein in the first tunnel field-effect transistor, the first electrode is a source electrode, and the second electrode is a drain electrode;
in the second tunnel field-effect transistor, the second electrode is a source electrode, and the first 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.