Patent ID: 6541278
Filing Date: 2003-04-01
Classification: C23C,H01L

Abstract:
A method for forming a film on a substrate using a source material, which produces first and second substances when reacted, such that the film is made of the first substance, the method comprising the steps of:a) preparing the source material and a solvent that dissolves the second substance; b) keeping the temperature and pressure of the solvent in a supercritical or subcritical state; c) heating the substrate such that the surface of the substrate is kept at such a temperature as to allow the source material to react, while making the source material and the solvent in the supercritical or subcritical state come into contact with the surface of the substrate such that a film is formed on the substrate out of the first substance and that the second substance is dissolved in the solvent and removed; wherein the substrate comprises at least one film selected from the group consisting of paraelectric, ferroelectric and metal films.