Patent ID: 11862521
Assignee: KLA CORPORATION
Field: Computer technology (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 9:
10. The multiple-tool parameter set calibration and misregistration measurement method according to claim 1 and wherein said at least a first reference misregistration metrology tool and said at least one initially-uncalibrated misregistration metrology tool comprise imaging misregistration metrology tools, and wherein said first set of measurement parameters comprises at least one of:
said linear position of said wafer stage used in said misregistration measurement;
said azimuthal orientation of said wafer stage used in said misregistration measurement;
said elevation angular orientation of said wafer stage used in said misregistration measurement;
said axis along which misregistration is measured;
said region of interest of said metrology target;
said numerical aperture used in said misregistration measurement;
said polarization of light used in said misregistration measurement;
said wavelengths of light used in said misregistration measurement;
said bandwidth of wavelengths of light used in said misregistration measurement;
said intensity of light used in said misregistration measurement;
said focal depth used in said misregistration measurement; or
said camera used in said misregistration measurement.