Patent ID: 9024281
Filing Date: 2015-05-05
Classification: H01J,H01L

Abstract:
1. An apparatus for implanting ions of a selected species into a semiconductor wafer comprising: an ion source configured to generate a first portion of ions with a first ion trajectory and a second portion of ions with a second ion trajectory different from the first ion trajectory; an accelerator structure comprising a first accelerator and a second accelerator, the first accelerator configured to accelerate the first portion of ions with a first energy, the second accelerator configured to accelerate the second portion of ions with a second energy, the first energy being different from the second energy; and a magnetic structure comprising a first magnetic deflector having a first strength configured to deflect the first portion of the accelerated ions into a first path trajectory and a second magnetic deflector having a second strength configured to deflect the second portion of the accelerated ions into a second path trajectory, the first magnetic deflector being different from the second deflector; wherein the first portion of the accelerated ions enters the magnetic structure at a first entry point and the second portion of the accelerated ions enters the magnetic structure at a second entry point different from the first entry point.