Patent ID: 8906208
Filing Date: 2014-12-09
Classification: B82Y,C23C,H01F,H01J,H01L

Abstract:
1. A sputtering apparatus comprising: a substrate holder which holds a substrate to be rotatable in a plane direction of a processing surface of the substrate; substrate magnetic field forming means, arranged around the substrate, for forming a magnetic field on the processing surface of the substrate; a cathode which is arranged at a position diagonally opposing the substrate and receives discharge power; position detection means for detecting a rotational position of the substrate; and power control means for controlling power applied to said cathode in accordance with the rotational position detected by said position detection means, wherein said power control means applies first power when a first portion where a scattering amount of sputtered particles is large due to a formation state of a magnetic field on the substrate is positioned near said cathode, and applies second power higher than the first power when a second positioned where the scattering amount of sputtered particles is smaller than the scattering amount of sputtered particles at the first portion is positioned near said cathode.