Characterization of SrTiO3thin films prepared by RF magnetron sputtering

Abstract
Polycrystalline SrTiO3 thin films have been prepared on Si(100) substrates by RF magnetron sputtering. The films were deposited at 400 degrees C and were annealed at 600 degrees C. The films had a dense microstructure with fine grains. The electrical properties of the films were dramatically controlled with annealing. From the result of the capacitance-voltage (C-V) characteristics the dielectric constant and the flat band voltage of the annealed films were measured to be 75 and -0.31 V, respectively. These oxide thin films with high dielectric constant are potentially useful in ULSI applications.