VARIABLE RESISTANCE ELEMENT, SEMICONDUCTOR DEVICE INCLUDING THE VARIABLE RESISTANCE ELEMENT, AND METHOD OF OPERATION THE SEMICONDUCTOR DEVICE

摘要

PURPOSE: A variable resistance device, a semiconductor device including the same, and a method for operating the semiconductor device are provided to enhance the reliability of the semiconductor device by improving a current distribution of the variable resistance device. CONSTITUTION: A set voltage is applied to a variable resistance device(110). A reset voltage is applied to the variable resistance device(120). A reset current flowing in the variable resistance device with the applied reset voltage is sensed(130). It is determined whether the sensed reset current is within a first current range(140). If the sensed reset current is not within the first current range, the reset voltage is applied to the variable resistance device.