Radiation imagery chemistry: process – composition – or product th – Radiation modifying product or process of making – Radiation mask
Reexamination Certificate
2005-05-31
2005-05-31
Rosasco, S. (Department: 1756)
Radiation imagery chemistry: process, composition, or product th
Radiation modifying product or process of making
Radiation mask
Reexamination Certificate
active
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
Auligine Gérard
Galan Gerald
Baker & Botts L.L.P.
DuPont Photomasks, Inc.
Rosasco S.
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