Patent ID: 7310238
Filing Date: 2007-12-18
Classification: H01G,H05K

Abstract:
1. A thin-film embedded capacitance comprising: a first electrode which is formed on a metallic thin film for wiring made of a metallic material in a non-yield state, the first electrode comprising a titanium layer formed on the metallic thin film, a barrier layer formed to cover the titanium layer and a nickelate compound layer formed to cover the barrier layer; a dielectric material layer which is formed on the first electrode and the metallic thin film for wiring, the dielectric material layer being formed at a temperature not lower than an ordinary room temperature and lower than a yield temperature of the metallic thin film for wiring, and having a coefficient of thermal expansion lower than a coefficient of thermal expansion of the metallic thin film for wiring; and a second electrode which is formed on the dielectric material layer.