US 11,706,921 B2 · Semiconductor storage device

Abstract

A semiconductor storage device includes a substrate, a first wiring, a second wiring, a third wiring, a fourth wiring, a charge storage unit. The first wiring extends in a first direction along a surface of the substrate. The second wiring is aligned with the first wiring in a second direction intersecting with the first direction and extends in the first direction. The third wiring is in contact with the first wiring and the second wiring and includes a semiconductor. The fourth wiring is located between the first wiring and the second wiring, extends in a third direction intersecting with the first direction and the second direction, and is aligned with the third wiring in at least the first direction. The charge storage unit is located between the third wiring and the fourth wiring.

Claims16

Dependent claims

A semiconductor storage device comprising:

a substrate having a surface;
a first source line extending in a first direction along the surface;
a first drain line aligned with the first source line in a second direction and extending in the first direction, the second direction intersecting with the first direction;
a first channel portion in contact with the first source line and the first drain line, the first channel portion including a semiconductor;
a first gate wiring located between the first source line and the first drain line, the first gate wiring extending in a third direction intersecting with the first direction and the second direction, the first gate wiring aligned with the first channel portion in the first direction;
and
a first charge storage located between the first channel portion and the first gate wiring.

4 more elements

A semiconductor storage device comprising:

a substrate having a surface;
a first wiring extending in a first direction along the surface;
a second wiring aligned with the first wiring in a second direction extending in the first direction, the second direction intersecting with the first direction;
a third wiring in contact with the first wiring and the second wiring, the third wiring including a semiconductor;
a fourth wiring located between the first wiring and the second wiring, and extending in a third direction intersecting with the first direction and the second direction, the fourth wiring aligned with the third wiring in at least the first direction;
and
a first charge storage located between the third wiring and the fourth wiring.

4 more elements

Dependencies are inferred from the claim text.

Semiconductor storage device

Life of this patent

Semiconductor storage device

Life of this patent

Abstract

Claims16