Illumination lens for projection lithography
The lens (4) has a field facing mirror (20) provided with a set of field faces, and a pupil facing mirror (21) provided with a set of pupil faces. The pupil faces serve for imaging each of the field faces in an object field (5). A single-mirror array (17) has an individually controlled mirror that i...
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Format: | Patent |
Sprache: | eng ; fre ; ger |
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