Patent ID: 6585823
Filing Date: 2003-07-01
Classification: C23C,C30B,Y10T

Abstract:
A method for atomic layer deposition of a solid film onto a plurality of substrates comprising:placing said plurality of substrates in a holder, the holder having at least three vertical columns, wherein upper ends of the columns are attached to an upper plate and lower ends of the columns are attached to a lower plate, wherein each column has mutually spaced recesses to receive an edge of the substrates so that the substrates are vertically spaced apart and rest substantially horizontally in the holder; inserting the holder with said plurality of substrates in a spaced apart relationship and substantially horizontal position in a reaction chamber delimited by a liner; heating the substrates to a deposition temperature; exposing the substrate to alternating and sequential pulses of at least two mutually reactive reactants, wherein the deposition temperature is high enough to prevent condensation of the reactants on a surface but not high enough to result in a significant thermal decomposition of the reactants individually, said exposing includes flowing the reactants in an annular passage defined between the liner and edges of the substrates in a direction substantially perpendicular to a major surface of the substrates; and removing the holder with said plurality of substrates from the reaction chamber.