SEMICONDUCTOR DEVICE INCLUDING HIGH VOLTAGE GENERATION CIRCUIT AND METHOD THERE-OF

摘要

A semiconductor device comprising a high voltage generation circuit and a method thereof are provided to prevent an operation error and overshoot of the semiconductor device, by comprising a switching part capable of connecting a first voltage generation circuit and a second voltage generation circuit. A first pump clock generation part(22) generates a first pump clock signal on the basis of a first power supply voltage. A first charge pump part(24) generates a first pump output voltage, in response to the first pump clock signal. A second pump clock generation part(32) generates a second pump clock signal on the basis of the first pump output voltage. A second charge pump part(34) generates a second pump output voltage in response to the second pump clock signal. A switching part(40) connects the first charge pump part and the second charge pump part selectively.