IP Library Granted Patent US 8,040,709
Granted Patent B2
US 8,040,709 · App. 12/553,516 · Granted Oct 18, 2011

Semiconductor storage device

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Quick Facts
Patent No.
US 8,040,709
App. No.
12/553,516
Granted
Oct 18, 2011
Kind
B2
Abstract

A semiconductor storage device includes: a memory cell array having memory cells positioned at respective intersections between a plurality of first wirings and a plurality of second wirings, each of the memory cells having a rectifier element and a variable resistance element connected in series; and a control circuit selectively driving the first and second wirings. The plurality of first wirings that are specified and selectively driven at the same time by one of a plurality of address signals are separately arranged with other first wirings interposed therebetween within the memory cell array when a certain potential difference is applied to a selected memory cell positioned at an intersection between the first and second wirings by the control circuit.

Claims (62)

1. A semiconductor storage device comprising:

a memory cell array having memory cells positioned at respective intersections between a plurality of first wirings and a plurality of second wirings, each of the memory cells having a rectifier element and a variable resistance element connected in series; and

a control circuit selectively driving the first and second wirings,

in applying, by the control circuit, a certain potential difference to a selected memory cell positioned at an intersection between the first and second wirings,

the plurality of first wirings specified and selectively driven at the same time by one of a plurality of address signals being separately arranged with other first wirings interposed therebetween within the memory cell array,

the first wirings being arranged such that a first set of the plurality of first wirings specified and selectively driven at the same time by a first address signal are positioned apart from a second set of the plurality of first wirings specified and selectively driven at the same time by the first address signal, with other first wirings interposed between the first and second set in the memory cell array, and

a plurality of sets of the first wirings being repeatedly arranged in the memory cell array, each of the first wirings in one of the plurality of sets being specified by different ones of the address signals.

2. The semiconductor storage device according to claim 1 , wherein

the first wirings are arranged such that a first set of the plurality of first wirings specified and selectively driven at the same time by a first address signal are positioned apart from a second set of the plurality of first wirings specified and selectively driven at the same time by the first address signal, with other first wirings interposed between the first and second set in the memory cell array.

3. The semiconductor storage device according to claim 1 , further comprising:

a memory block having a plurality of the memory cell arrays laminated thereon in a direction perpendicular to a semiconductor substrate,

wherein a plurality of the memory cell arrays specified and selectively driven at the same time by one memory-cell-array address signal are separately arranged with other memory cell arrays interposed therebetween within the memory block.

4. The semiconductor storage device according to claim 1 , wherein the control circuit comprises:

a column switch connected to the plurality of first wirings and selectively driving the first wirings; and

a column selection line connected to the column switch,

a first set of the plurality of first wirings specified and selectively driven at the same time by a first address signal and a second set of the plurality of first wirings specified and selectively driven at the same time by the first address signal are connected to different column switches.

5. The semiconductor storage device according to claim 1 , wherein the control circuit comprises:

a column switch connected to the plurality of first wirings and selectively driving the first wirings;

a column selection line connected to the column switch; and

a column decoder selectively driving the column selection line according to the address signals, and

the control circuit has a hierarchical structure, selectively driving the first wirings by the column decoder and the column switch.

6. A semiconductor storage device comprising:

a memory cell array having memory cells positioned at respective intersections between a plurality of first wirings and a plurality of second wirings, each of the memory cells having a rectifier element and a variable resistance element connected in series; and

a control circuit selectively driving the first and second wirings,

in applying, by the control circuit, a first voltage to the first wirings and a second voltage lower than the first voltage to the second wirings to apply a certain potential difference to a selected memory cell positioned at an intersection between the first and second wirings,

the plurality of first wirings specified and selectively driven at the same time by one of a plurality of address signals being separately arranged with other first wirings interposed therebetween within the memory cell array,

the first wirings being arranged such that a first set of the plurality of first wirings specified and selectively driven at the same time by a first address signal are positioned apart from a second set of the plurality of first wirings specified and selectively driven at the same time by the first address signal, with other first wirings interposed between the first and second set in the memory cell array, and

a plurality of sets of the first wirings being repeatedly arranged in the memory cell array, each of the first wirings in one of the plurality of sets being specified by different ones of the address signals.

7. The semiconductor storage device according to claim 6 , wherein

the first wirings are arranged such that a first set of the plurality of first wirings specified and selectively driven at the same time by a first address signal are positioned apart from a second set of the plurality of first wirings specified and selectively driven at the same time by the first address signal, with other first wirings interposed between the first and second set in the memory cell array.

8. The semiconductor storage device according to claim 6 , further comprising:

a memory block having a plurality of the memory cell arrays laminated thereon in a direction perpendicular to a semiconductor substrate,

wherein a plurality of the memory cell arrays specified and selectively driven at the same time by one memory-cell-array address signal are separately arranged with other memory cell arrays interposed therebetween within the memory block.

9. The semiconductor storage device according to claim 6 , wherein the control circuit comprises:

a column switch connected to the plurality of first wirings and selectively driving the first wirings; and

a column selection line connected to the column switch, and

a first set of the plurality of first wirings specified and selectively driven at the same time by a first address signal and a second set of the plurality of first wirings specified and selectively driven at the same time by the first address signal are connected to different column switches.

10. The semiconductor storage device according to claim 6 , wherein the control circuit comprises:

a column switch connected to the plurality of first wirings and selectively driving the first wirings;

a column selection line connected to the column switch; and

a column decoder selectively driving the column selection line according to the address signals, and

the control circuit has a hierarchical structure, selectively driving the first wirings by the column decoder and the column switch.

11. A semiconductor storage device comprising:

a memory cell array having memory cells positioned at respective intersections between a plurality of first wirings and a plurality of second wirings, each of the memory cells having a rectifier element and a variable resistance element connected in series; and

a control circuit selectively driving the first and second wirings,

in applying, by the control circuit, a certain potential difference to a selected memory cell positioned at an intersection between multiple ones of the first wirings and one of the second wirings,

the plurality of memory cells connected to one of the second wirings, on which memory cells operations are performed simultaneously, being separately arranged with other memory cells interposed therebetween in a direction in which the second wiring extends,

the memory cells being arranged such that a first set of the plurality of memory cells specified and performed operation at the same time by a first address signal are positioned apart from a second set of the plurality of memory cells specified and performed operation at the same time by the first address signal, with other memory cells interposed between the first and second set in the memory cell array, and

a plurality of sets of the memory cells being repeatedly arranged in the memory cell array, each of the memory cells in one of the plurality of sets being specified by different ones of address signals.

12. The semiconductor storage device according to claim 11 , wherein

the memory cells are arranged such that a first set of the plurality of memory cells specified and performed operation at the same time by a first address signal are positioned apart from a second set of the plurality of memory cells specified and performed operation at the same time by the first address signal, with other memory cells interposed between the first and second set in the memory cell array.

13. The semiconductor storage device according to claim 11 , wherein

the control circuit comprises:

a column switch connected to the plurality of first wirings and selectively driving the first wirings; and

a column selection line connected to the column switch, and

a first set of the plurality of memory cells specified and performed operation at the same time by a first address signal and a second set of the plurality of memory cells specified and performed operation at the same time by the first address signal are operated by the first wirings connected to different column switches.

14. The semiconductor storage device according to claim 11 , wherein

the control circuit comprises:

a column switch connected to the plurality of first wirings and selectively driving the first wirings;

a column selection line connected to the column switch; and

a column decoder selectively driving the column selection line according to the address signals, and

the control circuit has a hierarchical structure, selectively driving the first wirings by the column decoder and the column switch.

Assignments (5)
MERGER Recorded Jan 22, 2021
From: TOSHIBA MEMORY CORPORATION
To: K.K. PANGEA
Reel/Frame 055659/0471 →
CHANGE OF NAME AND ADDRESS Recorded Jan 22, 2021
From: TOSHIBA MEMORY CORPORATION
To: KIOXIA CORPORATION
Reel/Frame 055669/0001 →
CHANGE OF NAME AND ADDRESS Recorded Jan 22, 2021
From: K.K. PANGEA
To: TOSHIBA MEMORY CORPORATION
Reel/Frame 055669/0401 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 24, 2017
From: KABUSHIKI KAISHA TOSHIBA
To: TOSHIBA MEMORY CORPORATION
Reel/Frame 043709/0035 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 4, 2009
From: MAEJIMA, HIROSHI
To: KABUSHIKI KAISHA TOSHIBA
Reel/Frame 023193/0552 →