Importance

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Abstract

A semiconductor device includes a plurality of drain lines each being commonly connected to first nodes of a plurality of memory cells, a plurality of bit lines respectively connected to second nodes of the memory cells, a source line, a transistor that connects the drain lines to the source line, and a transistor that connects the source line to a ground potential in response to an access to the memory cell. Under control in which the memory cells are all deactivated, the semiconductor device controls the drain line to a drain potential that is higher than the ground potential, and controls the source line to be in a floating state by deactivating the transistors.

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First Claim