Device manufacturing method, mask set for use in the method,...

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

Reexamination Certificate

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C430S394000

Reexamination Certificate

active

10814802

ABSTRACT:
Isolated dark features, e.g. contact holes or lines, are exposed in a double exposure, using different illumination settings in the two exposures.

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patent: 2003/0054263 (2003-03-01), Kanaya

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