| 摘要 |
PURPOSE:To increase the efficiency of utilization of a target by placing a magnet on the rear side of the target in the radial direction of a substrate, rotating the magnet and conically protruding the central part of the target. CONSTITUTION:A magnet 4 is placed on a turntable 20 on the rear side of a target 2 and the outside of a sputtering chamber 6 in the radial direction of a circular substrate 12. The central part of the target 2 is conically protruded 2a. The magnet 4 is rotated on the center of the target 2 as the center of rotation to rotate a sputtering region extending in the radial direction of the target 2 around the center of the target 2. Atoms sputtered from the target 2 by electric discharge are deposited in the circumferential direction of the substrate 12. Though the central part of the target 2 is violently consumed, the conically protruded shape compensates the consumption and the efficiency of utilization of the target 2 is increased.
|
