Patent ID: 8178162
Filing Date: 2012-05-15
Classification: B82Y,C23C

Abstract:
1. A method of depositing a coating on a substrate from a vapor phase, wherein a surface roughness of said coating is controlled by controlling a total pressure in a processing chamber in which said coating is deposited, a partial pressure of at least one coating precursor, and a temperature of a substrate on which said coating is deposited, wherein there are a plurality of coating precursors, and at least one of said coating precursors is charged to said process chamber in a batch-like addition by adding the at least one of said coating precursors into the process chamber in controlled aliquots, which may be repeated a number of times to provide a desired coating thickness, wherein the batch-like addition includes accumulating a specific quantity of the at least one of said coating precursors to define each controlled aliquot, and dosing of the accumulated specific quantity directly to the process chamber.