SENSOR FOR LIQUID IMMERSION LITHOGRAPHIC APPARATUS
PROBLEM TO BE SOLVED: To provide a sensor effective for a liquid immersion apparatus.SOLUTION: This sensor includes a detector, a transparent layer and an opaque pattern layer. The detector is configured to sense a characteristic of a radiation beam. The transparent layer is configured to allow the...
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Main Authors | , , , , |
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Format | Patent |
Language | English |
Published |
06.01.2011
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Subjects | |
Online Access | Get full text |
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Summary: | PROBLEM TO BE SOLVED: To provide a sensor effective for a liquid immersion apparatus.SOLUTION: This sensor includes a detector, a transparent layer and an opaque pattern layer. The detector is configured to sense a characteristic of a radiation beam. The transparent layer is configured to allow the passage of the radiation beam therethrough. The transparent layer covers the detector. The opaque pattern layer is configured to impart a pattern to the radiation beam. The patterning layer is provided with an opening, and a filling material is arranged in the opening. The filling material is transparent to the radiation beam and has a refractive index identical to that of the transparent layer. |
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Bibliography: | Application Number: JP20100135725 |