Patent ID: 6783637
Filing Date: 2004-08-31
Classification: C23C

Abstract:
A method of depositing a material by sputtering, the method comprising the steps of:providing a vacuum chamber including a first window and a second window positioned between an antenna and a plasma chamber, the second window being positioned adjacent to said first window wherein the second window is positioned relative to the first window to form a gap spaced therebetween said first and second windows; providing a substrate positioned in the vacuum chamber; providing a plurality of target holding structures, with each target holding structure holding at least one target holding member in the vacuum chamber wherein each target holding structure has an ion beam source for directing ions at the at least one target holding member of each of the plurality of target holding structures; bringing a desired one of the at least one target holding members which bears a first desired sputtering target into a first sputtering position for each target holding structure; and alternately using the ion beam source for each target holding structure to deposit alternating layers of the desired sputtering target from each of the plurality of target holding structures onto the substrate.