In a method of measurement according to one embodiment of the invention, a relative position of a temporary alignment mark on one side of a substrate and an alignment mark on the other side of the substrate is determined, and the temporary alignment mark is removed. Before removal of the temporary alignment mark, a relative position of that mark and another mark on the same side of the substrate may be determined. The temporary alignment mark may be formed in, e.g., an oxide layer.

 
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