Patent ID: 6143143
Filing Date: 2000-11-07
Classification: C23C

Abstract:
A method for preventing the backscattered deposition of at least one sputter material onto a first surface of at least one substrate having a plurality of surfaces during the coating of a second surface of the substrate when placed in a carrier adapted for movement within a vacuum chamber with the at least one sputter material by a sputter deposition apparatus, comprising the steps of:sealing the first surface of the at least one substrate while exposing the second surface of the at least one substrate;said sealing of the first surface includes contacting in a sealing engagement a first sealing area with an adhesive material or release agent to mask the first surface, said first sealing area being selected from the group consisting of:at least a periphery of said first surface,a peripheral edge of said substrate, andat least a periphery of said first surface and a peripheral edge of said at least one substrate;activating the sputter deposition apparatus in said vacuum chamber, thereby sputtering the at least one sputter material toward the at least one substrate and coating the second surface of the at least one substrate with the at least one sputter material;unsealing the first surface of the at least one substrate,whereby the second surface is coated with the at least one sputter material and the first surface is substantially devoid of the at least one sputter material;activating the sputter deposition apparatus, thereby sputtering the at least one sputter material toward the at least one substrate and coating the first surface of the at least one substrate with the sputtered material, whereby the second surface and the first surface are sequentially coated.