Patent ID: 9209225
Filing Date: 2015-12-08
Classification: H01L

Abstract:
1. A cell structure of a non-volatile memory, the cell structure comprising: a first metal layer; a first dielectric layer disposed over the first metal layer, wherein the first dielectric layer has a first via, and the first metal layer is exposed through the first via; a first material layer formed on an inner surface of the first via; a second material layer formed on the first material layer; a first transition layer contacted with the first metal layer, wherein the first material layer and the second material layer are reacted with each other to form the first transition layer; a second metal layer formed within the first via and contacted with the first transition layer; a second dielectric layer disposed over the second metal layer and the first dielectric layer, wherein the second dielectric layer has a second via, and the second metal layer is exposed through the second via; a third material layer formed on an inner surface of the second via; a fourth material layer formed on the second material layer; a second transition layer contacted with the second metal layer, wherein the third material layer and the fourth material layer are reacted with each other to form the second transition layer; and a third metal layer formed within the second via and contacted with the second transition layer.