20250176190. Stor (SEMICONDUCTOR ENERGY LABORATORY ., .)

STORAGE DEVICE

Abstract: a storage device including a novel semiconductor device is provided. the storage device includes a memory cell including a transistor and a capacitor, and a conductor. the transistor includes one of a source electrode and a drain electrode, the other of the source electrode and the drain electrode, a first gate insulator, and a first gate electrode. the capacitor includes one electrode, a dielectric placed over the one electrode, and the other electrode placed over the dielectric. the top surface and the side surface of the one of the source electrode and the drain electrode of the transistor are in contact with the conductor, and the top surface of the other of the source electrode and the drain electrode of the transistor is in contact with the one electrode of the capacitor. the dielectric includes a ferroelectric material.

Inventor(s): Hitoshi KUNITAKE, Fumito ISAKA, Tatsuya ONUKI, Shunpei YAMAZAKI

CPC Classification: H10B51/30 (ELECTRONIC MEMORY DEVICES)

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