Patent ID: 7045275
Filing Date: 2006-05-16
Classification: G11B,H01J,Y10S,Y10T

Abstract:
1. A process for locating a second structural element with respect to a first structural element in a multi-layer lithographically fabricated device, comprising the steps of a) imaging, with a focused particle beam, a first marker element and at least one of said second structural element and a second marker element on said device, said first structural element being in a first layer, and said first marker element being in said first layer at a known distance and direction from said first structural element, said second structural element being in a second layer, and said second marker element being in said second layer, said structural elements and said marker elements intersecting a geometrical surface that extends transversely to said first and second layers, and b) determining, responsive to said imaging step, the location of said second structural element relative to the location of said first structural element.