PULSE OUTPUT CIRCUIT AND SEMICONDUCTOR DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a high-reliability semiconductor device capable of suppressing the shift of the threshold voltage of a transistor due to degradation.SOLUTION: A pulse output circuit comprises: a first transistor having a drain receiving a clock signal; a second transistor having a source receiving a first power-supply potential and having a drain connected to the drain of the first transistor; a third transistor having a drain receiving a second power-supply potential; a fourth transistor having a source receiving the first power-supply potential and having a drain connected to the drain of the third transistor; a fifth transistor having a source receiving the first power-supply potential and having a drain connected to a gate of the third transistor; and a sixth transistor having one of a source and a drain connected to the drain of the first transistor and having the other of them connected to the gate of the third transistor. The first transistor to the third transistor have back gates that are connected to one another, and the first to sixth transistors have the same conductivity type.