Patent ID: 7417242

Claim:
An ion implantation system, comprising: an ion implanter operable to form an ion beam; a measurement apparatus having a plane associated therewith, the measurement apparatus further comprising: a first elongate sensor, wherein the first elongate sensor extends in a first direction along the plane of the measurement apparatus, and wherein the first elongate sensor is operable to sense one or more characteristics of the ion beam; and a second elongate sensor, wherein the second elongate sensor extends along the plane at an oblique angle with respect to the first elongate sensor, and wherein the second elongate sensor is further operable to sense the one or more characteristics of the ion beam; a translation mechanism operably coupled to the ion implanter and the measurement apparatus, wherein the translation mechanism is operable to translate the measurement apparatus through a path of the ion beam in a direction generally perpendicular to the first elongate sensor and generally parallel with the plane; and a controller configured to control the translation mechanism and to receive the sensed one or more characteristics of the ion beam, wherein the controller is operable to determine a position in two orthogonal directions of the ion beam with respect to the plane of the measurement apparatus based, at least in part, on a position of the measurement apparatus and the one or more characteristics of the ion beam sensed by the first sensor and second sensor.