Patent ID: 8759803

Claim:
An ion implant apparatus comprising: a rotary scan assembly having an axis of rotation and a periphery; the rotary scan assembly further having an axial profile about said axis of rotation and extending to said periphery; a plurality of substrate holders distributed about said periphery, said substrate holders arranged to hold respective planar substrates at a common substrate tilt angle to define a total cone angle about said axis of rotation which is less than 60°; and a beam line assembly to provide a beam of ions for implantation in said planar substrates on said substrate holders, said beam line assembly comprising in sequence in an ion beam direction: an ion source, an ion accelerator effective to accelerate ions from said ion source to produce an accelerated beam having a desired implant energy, and a beam bending magnet having a beam inlet to receive said accelerated beam; wherein said ion source, said accelerator and said beam inlet defining a beam acceleration path which is linear from said ion source to said beam inlet of said beam bending magnet; wherein said beam line assembly further includes an analyzer magnet which is located inside said axial profile of said rotary scan assembly; wherein said beam line assembly is arranged to direct said beam in a predetermined ion implant direction along a final beam path, which is at an angle of at least 45° to said axis of rotation; and wherein said planar substrates on said substrate holders successively intercept said final beam path in a travel direction as said rotary scan assembly rotates.