Semiconductor storage device
AssigneeSony Corporation
InventorsTsunenori Shiimoto, Masaaki Hara
Life of this patent
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Abstract
A semiconductor storage device has an array of memories, which store data and which are arranged in a matrix, and can read the data in response to address designation. The semiconductor storage device includes word line pairs, bit line pairs, and resistance portions. The resistance portions are each connected across two word lines of the corresponding word line pair and two bit lines of the corresponding bit line at the corresponding intersection thereof. Each resistance portion includes resistors having differential values in both the word line direction and the bit line direction. This arrangement allows the semiconductor storage device to read data with accuracy at high speed and allows the semiconductor storage device to be miniaturized at low cost.
Claims8
A semiconductor storage device in which data is stored in memory elements arranged in a matrix and the data is readable by address designation, the semiconductor storage device comprising:
- a plurality of word line pairs arranged at regular intervals in a row direction, each word line pair being configured as two adjacent word lines;
- a plurality of bit line pairs arranged at regular intervals in a column direction so as to intersect the word line pairs, each bit line pair being configured as two adjacent bit lines;
- and
- a plurality of resistance portions adapted to serve as the memory elements, each resistance portion being connected across two word lines of the corresponding word line pair and two bit lines of the corresponding bit line pair in a region where the word line pair and the bit line pair intersect each other,
- each resistance portion including at least one resistor having a resistance corresponding to stored data to define one storage unit.
Dependencies are inferred from the claim text.