Patent ID: 7098101
Filing Date: 2006-08-29
Classification: C23C,H01L

Abstract:
1. A a method of forming Pr X Ca 1-x MnO 3 thin films having a PMO/CMO super lattice structure using metalorganic chemical vapor deposition, comprising: preparing organometallic compounds and solvents; mixing organometallic compounds and solvents to form PMO and CMO precursors; injecting the precursors for PMO and CMO into a MOCVD chamber vaporizer; selecting deposition parameters to form a nano-sized PCMO thin film or a crystalline PCMO thin film from the injection of PMO and CMO precursors, wherein the PMO and CMO precursors are alternately injected into the MOCVD chamber vaporizer; maintaining the selected deposition parameters to deposit the PCMO thin film species having a desired Pr:Ca concentration ratio in a specific portion of the PCMO thin film; and annealing the PCMO thin film at a selected temperature for a selected time period.