Title:
SEMICONDUCTOR DEVICE AND OPERATION METHOD FOR SEMICONDUCTOR DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/217138
Kind Code:
A2
Abstract:
A semiconductor device for storing information as multivalued potentials is provided. The semiconductor device comprises memory cells, first and second reference cells, first and second sense amplifiers, and first to third circuits. The first circuit has a function of outputting, to first wiring and third wiring, a first potential corresponding to a first signal outputted from a memory cell, the second circuit has a function of outputting, to a second wiring, a first reference potential corresponding to a second signal outputted from the first reference cell, and the third circuit has a function of outputting, to a fourth wiring, a second reference potential corresponding to a third signal outputted from the second reference cell when a second switch is off. The first sense amplifier changes the potentials of the first wiring and the second wiring in reference to the first potential and the first reference potential, and the second sense amplifier changes the potentials of the third wiring and the fourth wiring in reference to the first potential and the second reference potential.
Inventors:
MATSUZAKI TAKANORI (JP)
ONUKI TATSUYA (JP)
OKAMOTO YUKI (JP)
HAMADA TOSHIKI (JP)
ONUKI TATSUYA (JP)
OKAMOTO YUKI (JP)
HAMADA TOSHIKI (JP)
Application Number:
PCT/IB2020/053526
Publication Date:
October 29, 2020
Filing Date:
April 15, 2020
Export Citation:
Assignee:
SEMICONDUCTOR ENERGY LAB (JP)
International Classes:
H01L21/336; G11C11/405; G11C11/4091; G11C11/56; H01L29/786; H01L29/788; H01L29/792
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