Photomask and method for detecting violations in a mask...

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

Reexamination Certificate

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Reexamination Certificate

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06899981

ABSTRACT:
A photomask and method for detecting failures in a mask pattern file using a manufacturing rule are disclosed. The method includes calculating a manufacturing rule based on a design parameter associated with a manufacturing process and measuring a dimension of a non-linear feature in a mask pattern file. A rule violation is identified in the mask pattern file if the measured dimension is less than the calculated manufacturing rule.

REFERENCES:
patent: 2002/0112222 (2002-08-01), Fischer et al.
patent: 2003/0061583 (2003-03-01), Malhotra

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