Patent ID: 8634063

Claim:
A printed wafer, comprising: a design printed within a peripheral portion of the wafer, wherein the peripheral portion of the wafer is between an outer boundary of an active portion of the wafer and an outer boundary of the wafer, wherein the design is a copy of a portion of a pattern that exists on a reticle of an exposure apparatus, wherein the pattern includes a plurality of pattern elements such that adjacent pattern elements are separated by a spacing, wherein the plurality of pattern elements that exists on the reticle consists of a first plurality of pattern elements and a second plurality of pattern elements, wherein the design that is printed within the peripheral portion of the wafer includes the first plurality of pattern elements and does not include the second plurality of pattern elements, wherein the spacing is about equal to a design tolerance, and wherein the design tolerance is a sum of a first design tolerance and a second design tolerance, wherein the first design tolerance is based on how accurately a reticle blind of the exposure apparatus can be positioned within the exposure apparatus, and wherein the second design tolerance is based on how sharply an edge of the reticle blind can be focused on the wafer by a lens of the exposure apparatus.