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

Claim 2:
3. The multiple-tool parameter set calibration and misregistration measurement method according to claim 1 wherein:
the method further comprises, prior to said generating of said calibrated set of measurement parameters:
using a second reference misregistration metrology tool using a second set of measurement parameters to measure misregistration between said at least two layers on a wafer selected from said batch of wafers, thereby generating a second misregistration data set; and
transmitting said second set of measurement parameters and said second misregistration data set from said second reference misregistration metrology tool to said CSMPG and
processing said second set of measurement parameters and said second misregistration data set, using said CSMPG, thereby generating said calibrated set of measurement parameters.