Semiconductor storage device
AssigneeKioxia Corporation
InventorsTakaco UMEZAWA, Hiroaki YAMAMOTO, Shinichi ASOU, Tetsuya TADA, Katsuaki MOURI, Takahiro SHIMOKAWA, Syunsuke SASAKI
Life of this patent
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Abstract
A semiconductor storage device includes a first signal line extending in a first direction, and second signal line extending in the first direction and adjacent to the first signal line in a second direction orthogonal to the first direction. The first signal line includes a trunk wiring extending in the first direction, and one or more branch wirings branched from the trunk wiring and extending on one side toward the second signal line in the second direction.
Claims20
A semiconductor storage device, comprising:
- a first signal line extending in a first direction;
- and
- a second signal line extending in the first direction and adjacent to the first signal line in a second direction orthogonal to the first direction, wherein
- the first signal line includes:
- a trunk wiring extending in the first direction;
- and
- one or more branch wirings branched from the trunk wiring and extending on one side toward the second signal line in the second direction.
A semiconductor storage device, comprising:
- first and second signal lines extending in a first direction;
- and
- a plurality of third signal lines between the first and second signal lines, extending in the first direction, and arranged along a second direction crossing the first direction, wherein
- each of the third signal lines includes:
- a trunk wiring extending in the first direction;
- and
- one or more branch wirings branched from the trunk wiring and extending on one side toward one of the first and second signal lines in the second direction.
A semiconductor storage device, comprising:
- a memory array;
- a plurality of bit lines above the memory array in a first wiring layer;
- a second wiring layer above the first wiring layer;
- and
- a third wiring layer above the second wiring layer, wherein
- the third wiring layer includes first and second signal lines extending in a first direction adjacent in a second direction orthogonal to the first direction, and
- the first signal line includes:
- a trunk wiring extending in the first direction;
- and
- one or more branch wirings branched from the trunk wiring and extending on one side toward the second signal line in the second direction.
Dependencies are inferred from the claim text.