Patent ID: 9336992
Filing Date: 2016-05-10
CPC Classification: H01J

Claim Text:
1. An ion implantation apparatus comprising: a lens electrode unit that includes a plurality of electrode sections for parallelizing an ion beam; and a vacuum unit that houses the lens electrode unit in a vacuum environment, wherein the vacuum unit includes: a first vacuum container having a first conductive container wall; a second vacuum container having a second conductive container wall; and an insulating container wall that connects the first vacuum container to the second vacuum container such that the first vacuum container and the second vacuum container communicate with each other and the first conductive container wall is insulated from the second conductive container wall, wherein the ion implantation apparatus further comprises an insulating member that insulates at least one electrode section among the plurality of the electrode sections from at least one of the first conductive container wall and the second conductive container wall, and wherein the insulating member is housed in the vacuum environment together with the lens electrode unit.