Patent ID: 6037313
Filing Date: 2000-03-14
Classification: C23C,H01L,Y10S

Abstract:
A method for forming superconducting films of complex oxide compounds in a process chamber, which comprises:(a) placing a substrate at a location near a target in a chamber so that said substrate is positioned to be generally perpendicular to a surface of said target, said target comprising a target material of complex oxide compounds;(b) irradiating a laser beam to said surface of said target to vaporize or sublime said target material thereby forming over said target a flame-shaped plume having an axis generally perpendicular to said surface of said target so that said target material is deposited onto a surface of said substrate;(c) during said step (b), maintaining said substrate at said location such that a surface of said substrate is remote from said axis of said plume and generally perpendicular to said surface of said target;whereby said substrate surface is generally parallel to said axis of said plume and a side of said plume contacts said surface of said substrate;(d) during said step (b), rotating said target on an axis perpendicular to said surface of said target and rotating said substrate on an axis perpendicular to said surface of said substrate; and(e) during said step (b), scanning said laser beam over said surface of said target.