Patent ID: 11887989
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 0:
1. A semiconductor device comprising:
a first transistor including a first channel layer of a first conductivity type;
a second transistor provided in parallel with the first transistor, the second transistor including a second channel layer of a second conductivity type; and
a third transistor stacked on the first transistor and the second transistor, the third transistor including a third channel layer and a gate electrode that are spaced apart from each other in a thickness direction with a gate insulating film therebetween, the gate insulating film including a ferroelectric material, wherein
the third channel layer is laterally between a source electrode of the third transistor and a drain electrode of the third transistor such that third channel layer contacts a sidewall of the source electrode of the third transistor and a sidewall of the drain electrode of the third transistor,
the gate electrode is spaced apart vertically from the third channel layer, does not vertically overlap the source electrode of the third transistor, and does not vertically overlap the drain electrode of the third transistor,
the ferroelectric material includes at least one of HfO, HfxZr1-xO, and ZrO, and
the ferroelectric material is doped with at least one of Si, Al, Zr, Y, La, Gd, Sr, and Hf.