Patent ID: 6178653
Filing Date: 2001-01-30
Classification: G01B,G01Q,Y10S

Abstract:
A probe tip locator for use in determining the x-axis location and y-axis location of a probe tip of a microscope relative to a locator, said locator comprising:a plurality of first reference lines parallel in a first direction, each of said first reference lines representing a predetermined x-axis location of said probe tip;a plurality of sets of parallel encoded bit fields, each one of said sets corresponding to one of said first reference lines; anda plurality of second reference lines, each one of said second reference lines intersecting at least one of said first reference lines, such that a scan of a portion of said locator is used to determine the x-axis location and y-axis location of said probe tip relative to said probe tip locator by movement of said probe tip relative to said probe tip locator.