Patent ID: 7442946

Claim:
A nonuniform ion implantation apparatus comprising: a wide ion beam generator, including: an upper magnetron assembly comprising a first upper magnetron assembly and a second upper magnetron assembly, and a lower magnetron assembly comprising a first lower magnetron assembly and a second lower magnetron assembly disposed below the first upper magnetron assembly and the second upper magnetron assembly, such that the first lower magnetron assembly and the second lower magnetron assembly are vertically spaced a predetermined distance from the first upper magnetron assembly and the second upper magnetron assembly, the upper and lower magnetron assemblies configured to generate a plurality of wide ion beams comprising at least a first wide ion beam generated between the first upper magnetron assembly and the first lower magnetron assembly and a second wide ion beam generated between the second upper magnetron assembly and the second lower magnetron assembly; and a wafer drive unit for moving a wafer on which the wide ion beam is irradiated by the wide ion beam generator.