Patent ID: 6967368
Filing Date: 2005-11-22
Classification: H01L

Abstract:
1. A ferro-electric memory device comprising: a semiconductor substrate; a first transistor which is formed on the semiconductor substrate and has a first gate electrode, a first diffusion layer, and a second diffusion layer; a first insulating film which is formed on the semiconductor substrate and the first transistor; a first ferro-electric capacitor which is selectively formed on the first insulating film and has a first lower electrode, a first ferro-electric film, and a first upper electrode; a first hydrogen barrier film which has a first portion, a second portion, and a third portion, which are continuously formed, the first portion being formed on the first insulating film, the second portion covering a side surface of the first lower electrode, a side surface of the first ferro-electric film, and a side surface of the first upper electrode, and the third portion being formed on an upper surface of the first upper electrode; a first interlayer which is formed on the second portion; and a second hydrogen barrier film which has a fourth portion, a fifth portion, and a sixth portion, which are continuously formed, the fourth portion having a first contact portion which comes into contact with at least part of the first portion, the fifth portion being formed on the first interlayer, and the sixth portion being formed on the third portion.