Patent ID: 7485874
Filing Date: 2009-02-03
Classification: H01J,H01L

Abstract:
1. An apparatus for manufacturing semiconductor substrates, the apparatus comprising: support disks; and holding units for holding semiconductor substrates on said support disks, wherein said semiconductor substrates held by said support disks are subjected to an ion implantation while said semiconductor substrates are revolved like orbital motion, said holding unit has a stopper which holds the brim of said semiconductor substrate and which joins with said support disk, a stopper holder which supports said stopper at the outer circumferential portion thereof and which is fixed to said support disk as being able to attached and removed, and a retaining member which retains said stopper to said support disk and which is fixed to said support disk as being able to attached and removed, and said stopper is formed of a conductive material and has a heating unit that is fixed to the stopper and heats the stopper.