| 摘要 |
Each magnet segment 22 of a magnetic field forming mechanism 21 is constructed such that, after the magnetic pole of each magnet segment 22 set to face a vacuum chamber 1 as shown in FIG. 3 A, adjoining magnet segments 22 are synchronously rotated in opposite directions, and hence every other magnet element 22 is rotated in the same direction as shown in FIGS. 3 B, 3 C to thereby control the status of a multi-pole magnetic field formed in the vacuum chamber 1 and surrounding a semiconductor wafer W. Therefore, the status of a multi-pole magnetic field can be easily controlled and set appropriately according to a type of plasma processing process to provide a good processing easily. |
