Reticle and a method for measuring blind setting accuracy using

Radiation imagery chemistry: process – composition – or product th – Radiation modifying product or process of making – Radiation mask

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430 22, 356400, 356401, G03F 900

Patent

active

056164386

ABSTRACT:
A method for setting the blind of a stepper comprising the steps of: forming a first pattern which is made on a wafer by said blind, and a second pattern which is made on the wafer by chrome patterns of a reticle; comparing said first pattern with said second pattern; and measuring a setting error of said blind from the difference between said first pattern and second pattern.

REFERENCES:
patent: 5444538 (1995-08-01), Pellegrini

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