Patent ID: 8652952

Claim:
A method of implanting two species of ions into a semiconductor wafer, comprising: providing a first source of plasma (first plasma), which includes a first species of ions; providing a second source of plasma (second plasma), which includes a second, differing, species of ions; employing a mechanical mechanism to selectively: (i) permit the first plasma to pass through a first outlet and seal off the second plasma in a first state, and (ii) permit the second plasma to pass through the first outlet and seal off the first plasma in a second state; and serially receiving from the first outlet (1) the first plasma and then (2) the second plasma, and serially (1) accelerating the first species of ions from the first plasma toward a semiconductor wafer and then (2) accelerating the second species of ions from the second plasma toward a semiconductor wafer, to serially bombard an implantation surface of the semiconductor wafer with the first and second species of ions, thereby creating an exfoliation layer therein.