Mark and method for integrated circuit fabrication with polarized light
lithography. A preferred embodiment comprises a first plurality of
elements comprised of a first component type, wherein the first component
type has a first polarization, and a second plurality of elements
comprised of a second component type, wherein the second component type
has a second polarization, wherein the first polarization and the second
polarization are orthogonal, wherein adjacent elements are of different
component types. The alignment marks can be used in an intensity based or
a diffraction based alignment process.