SEMICONDUCTOR DEVICE AND METHOD OF MANUFACTURING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a signal processing circuit capable of suppressing consumption power without requiring a complicated manufacture step.SOLUTION: A storage element comprises: two logic elements (a first phase inversion element and a second phase inversion element) each inverts a phase of an input signal and outputs the input signal whose phase has been inverted; a first selection transistor; and a second selection transistor. The storage element has two sets (a set of a first transistor and a first capacitive element, and a set of a second transistor and a second capacitive element) each consists of a capacitive element and a transistor whose channel is formed on an oxide semiconductor layer. The storage element is used for a storage device included in a signal processing circuit. For example, the storage element is used for a storage device such as a register and a cache memory, included in the signal processing circuit.SELECTED DRAWING: Figure 1