Patent ID: 6096176
Filing Date: 2000-08-01
Classification: C23C,H01J,H01L

Abstract:
A sputtering method comprising the steps of:disposing a target and an object to be processed in opposition to the target in a processing vessel whose internal pressure can be reduced, andintroducing a gas into the processing vessel so that plasma is generated to deposit deposition seeds on the object to be processed;wherein the deposition seeds comprise(a) particles from the target, or(b) a combination of the particles and the gas,wherein the plasma is generated by antenna means, the target is located at least in a region of the plasma, the object to be processed is located outside and next to a boundary of the plasma region, and a bias voltage is applied to the object to be processed, andwherein a magnetic field is formed in the processing vessel, the boundary of the plasma region in the processing vessel on the side of the object to be processed is so restricted that the object to be processed is located outside the plasma region,wherein the plasma is formed between a pair of boundaries which are perpendicular to a line connecting a center of the target and a center of the object to be processed, the target is held between the pair of boundaries, and the object to be processed is held outside the plasma region, andwherein the magnetic field defines the boundaries of the plasma region.