Patent ID: 9349449
Filing Date: 2016-05-24
CPC Classification: G11C

Claim Text:
1. A resistance change type memory comprising: a memory cell including a first resistance change element as a memory element; a reference cell including a second resistance change element including the same materials as the first resistance change element, and a first element, the first element having a resistance value which is not higher than a resistance range of the first and second resistance change elements; and a read circuit including a first input terminal connected to the memory cell, and a second input terminal connected to the reference cell, wherein when data is read out from a memory cell, first and second electric currents, which are less than a threshold at which resistance states of the first and second resistance change elements are changed, are supplied to a memory cell selected for reading out data and to the reference cell, respectively, the second electric current flowing in the second resistance change element in a direction identical to a direction in which the resistance state of the second resistance change element changes from a first resistance state of a first resistance value to a second resistance state of a second resistance value which is higher than the first resistance value, and the first element is a transistor.