SEMICONDUCTOR DEVICE FOR REDUCING FATIGUE, INCREASING PERMANENT POLARIZATION, AND REDUCING COERCIVE FILED BY IMPROVING FERROELECTRIC PROPERTY OF PZT THIN FILM AND FABRICATING METHOD THEREOF

摘要

PURPOSE: A semiconductor device including a PZT thin film having an improved ferroelectric property and a fabricating method thereof are provided to maintain stoichiometry of PZT by restricting a mutual reaction between a PbRu2O7-x layer and a platinum layer. CONSTITUTION: A platinum layer(4) is formed on an upper surface of a substrate(1). A PbRu2O7-x layer(2) is formed on an upper surface of the platinum layer. A PZT thin film(3) is formed on an upper surface of the PbRu2O7-x layer. A platinum layer is formed on an upper surface of the PZT layer. A thickness of the PbRu2O7-x layer is 20 to 50nm.