Patent ID: 6830626
Filing Date: 2004-12-14
Classification: C23C

Abstract:
A material source for use in vacuum deposition of a deposition material onto a surface of a substrate, said material source comprising:a body having a base and extending along a substantially longitudinal axis, said body defining an interior cavity and having at least one substantially longitudinal exit aperture fluidly connected to said interior cavity; a heating element positioned in and spaced from an interior wall of said body, said heating element extending in an axis substantially parallel to said longitudinal axis of said body and having at least one substantially longitudinal exit aperture; a deposition material positioned within said heating element and having at least one of low temperature evaporation characteristics and sublimation characteristics; and a temperature sensing probe in at least one of direct contact and indirect contact with said deposition material and configured to measure the temperature of said deposition material; wherein said heating element comprises an electrically resistive circuit conformal upon an outer surface of the heating element and at least one electrical connection powering said electrical circuit; wherein said body of said material source and said body of said heating element are rotatable with respect to each other, such that said exit aperture of said body of said material source is misalignable with said exit aperture of said heating element.