| 摘要 |
Disclosed is ICP plasma processing equipment wherein uniformity of plasma and plasma ignition are improved. Plasma processing equipment comprises a vacuum processing chamber (1), an insulating material (12), a gas inlet (3), a high frequency induction antenna (antenna) (7) provided upper outside of the vacuum processing chamber (1), magnetic field coils (81, 82) for forming a magnetic field in the vacuum processing chamber (1), a yoke (83) for controlling distribution of a magnetic field in the vacuum processing chamber (1), a high frequency power supply (51) for generating plasma and supplying a high frequency current to the antenna (7), and a power supply for supplying power to the magnetic field coils (81, 82), wherein the antenna (7) is divided into n high frequency induction antenna elements (7-1) (not shown), (7-2), (7-3) (not shown), and (7-4), the divided antenna elements are arranged in tandem on one circle so that a high frequency current delayed sequentially by λ (wavelength of high frequency power supply)/n flows clockwise through the antenna elements (7-2 through 7-4) arranged in tandem via delay means, and a magnetic field is applied from the magnetic field coils (81, 82) to generate electron cyclotron resonance (ECR) phenomenon. |
