Patent ID: 9218907
Filing Date: 2015-12-22
Classification: C01G,C01P,C23C,H01B,H01G,H01L

Abstract:
1. A thin film capacitor comprising: a substrate; an adhesion layer disposed on the substrate; a lower electrode layer disposed on the adhesion layer; a lower buffer layer of dielectric perovskite material disposed on the lower electrode layer; a main dielectric layer of crystalline oxynitride composite paraelectric material disposed on the lower buffer layer; an upper oxide buffer layer disposed on the main dielectric layer; and an upper electrode film of electrically conductive material disposed on top of the upper oxide buffer layer; wherein a dielectric stack including the main dielectric layer of crystalline oxynitride composite paraelectric material, the lower buffer layer, and the upper oxide buffer layer has an effective dielectric constant of about 800 to about 1100 and a thickness of about 90 nm to about 100 nm.