Patent ID: 7078711

Claim:
A method of adjusting an ion implanter, the method comprising: evaluating a first wafer using a first method that is sensitive to a first parameter selected from a group consisting of dose and energy, the first method measuring the first parameter independent of a second parameter in said group; determining a first adjustment in the first parameter based at least on (a) a first measurement obtained from said evaluating of first wafer and (b) a predetermined value of the first parameter in an ion implanter used to implant the first wafer; evaluating a second wafer using a second method that is sensitive to both the first parameter and the second parameter, wherein the second wafer is implanted by said ion implanter after said first adjustment is made; and determining a second adjustment in the second parameter based at least on (a) a second measurement obtained from said evaluating of second wafer and (b) a predetermined value of the second parameter in said ion implanter when implanting the second wafer.