An orientation system for corrective eye surgery includes a camera for performing a first image mapping a patient’s eye using a predetermined eye feature and software for processing the first image map to determine an edge location of the feature. The first gearbox comprises a casing mounted for rotation relative to the housing of the actuator and a second gearbox arranged to convert rotary motion of the casing of the first gearbox into rotary motion having lower torque and higher speed. The candidate solutions can be generated when processing resources are available for performing a Monte Carlo algorithm. The mount portion is electrically connected to a back-surface electrode on the back surface of the ceramic package. In one embodiment, a method for making N typed MOSFET devices includes forming an N-well and a P-well with twin well process, forming field oxide, forming gate comprising an oxide layer and a conducting layer, forming a P-base in the P-well, the P-base being self-aligned to the gate, side diffusing the P-base to contact the N-well, and forming N+ source pickup region and N+ drain pickup region.