Semiconductor device including memory cells and peripheral circuits

Abstract

A semiconductor device is provided. The semiconductor device includes a lower structure including lower word lines, lower local bit lines, and lower memory cells connected to the lower word lines and the lower local bit lines; an upper structure including upper word lines, upper local bit lines, and upper memory cells connected to the upper word lines and the upper local bit lines; and an intermediate structure disposed between the lower structure and the upper structure. The intermediate structure includes word line select circuits electrically connected to the lower word lines and the upper word lines; and sub-word line drivers electrically connected to the word line select circuits.

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