An interferometric-spatial-phase imaging (ISPI) system includes a
substrate wafer. An alignment configuration is permanently embedded in
the substrate wafer. The alignment configuration uses a global coordinate
reference system by providing a plurality of global reference marks that
encompass up to the entire substrate wafer. A plurality of alignment
markings is provided on a surface in close proximity to the alignment
configuration for obtaining continuous six-axis control to provide
positional information of a scanning probe tip or an electron beam with
respect to said global coordinate reference system.