Reference Wafer and Process for Manufacturing Same
AssigneeLitel Instruments
InventorsAdlai Smith, Robert Hunter
Life of this patent
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AssigneeLitel Instruments
InventorsAdlai Smith, Robert Hunter
Estimating the term…
An apparatus and method for manufacturing and using a calibrated registration reference wafer in a semiconductor manufacturing facility where an archive media includes etched alignment attributes. Exposing a pattern of complementary alignment attributes onto the archive media such that the pattern of complementary alignment attributes overlay and interlock with the etched alignment attributes thereby forming completed alignment attributes. Then, measuring offsets in the completed alignment attributes and constructing a calibration file for the archive media based upon the offset measurements and other characteristic data of the exposure tool.
A reticle for use in constructing a calibration file for an archive media;
A calibration reticle for use in constructing a calibration file for an archive media;
Dependencies are inferred from the claim text.