Patent ID: 9184379
Filing Date: 2015-11-10
Classification: H01L

Abstract:
1. A device, comprising: a substrate; a first layer formed over the substrate, the first layer operable as a first electrode; a second layer formed over the first layer, the second layer operable as a second electrode; a third layer formed between the first layer and the second layer, the third layer operable as a variable-resistance layer; a fourth layer formed between the first layer and the second layer, the fourth layer operable as a constant-resistance layer; and a fifth layer formed in contact with the fourth layer and one of the first layer or the second layer, the fifth layer operable as a cap layer; wherein the fourth layer comprises a first transition metal, a first additional element, and one of oxygen or nitrogen; wherein the fifth layer comprises the first transition metal and a second additional element; and wherein an atomic percentage (at %) oxygen at an interface between the fifth layer and the fourth layer is less than 5% of an atomic percentage (at %) oxygen in the fourth layer.