Patent ID: 7337552
Filing Date: 2008-03-04
Classification: G03F

Abstract:
1. An integral alignment optic comprising: a projection alignment component device on a first planar surface of an in-situ photolithography apparatus, the first surface also including a first set of features, the projection alignment component device comprising a centered axicon that projects a bright dot and a bright ring onto a second planar surface when illuminated by collimated light, wherein the second planar surface is offset in a direction perpendicular or normal to the first planar surface and is rigidly attached to the first planar surface, and the second planar surface not conjugate to the first planar surface with respect to any projection imaging system; and a target alignment component device attached to the second planar surface, the target alignment device being centered on a single projection alignment component device on the first planar surface, the target alignment component comprising a metal plate with an opening nominally centered on the bright dot and one or more openings centered along the perimeter of the bright ring.