Patent ID: 6267851
Filing Date: 2001-07-31
Classification: C23C,H01J

Abstract:
Apparatus for sputter deposition of material from a sputtering target onto an electronic substrate, comprising:a vacuum chamber;a first sputtering target within the vacuum chamber, wherein the first target has a front surface that faces generally downward and that is tilted at an angle in the range of 30 to 60 degrees, inclusive, relative to a vertical line;a workpiece support for positioning an electronic substrate at one or more workpiece positions within the vacuum chamber, wherein said one or more workpiece positions include one or more workpiece positions that are below the first target; anda first shield positioned within the vacuum chamber below the first target and above said workpiece positions that are below the first target, wherein the first shield occupies an area such that any line extending vertically downward from the front surface of the first target to any of said workpiece positions that are below the first target will intersect the first shield at a point above said any workpiece position.