ENHANCED EUV LITHOGRAPHY SYSTEM

The present disclosure provides a semiconductor lithography system. The lithography system includes a projection optics component. The projection optics component includes a curved aperture. The lithography system includes a photo mask positioned over the projection optics component. The photo mask...

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Bibliographic Details
Main Authors LIU RU-GUN, CHANG CHING-HSU, CHENG NIAN-FUH, CHOU CHIH-SHIANG, HUANG WENUN
Format Patent
LanguageEnglish
Published 19.11.2015
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Summary:The present disclosure provides a semiconductor lithography system. The lithography system includes a projection optics component. The projection optics component includes a curved aperture. The lithography system includes a photo mask positioned over the projection optics component. The photo mask contains a plurality of elongate semiconductor patterns. The semiconductor patterns each point in a direction substantially perpendicular to the curved aperture of the projection optics component. The present disclosure also provides a method. The method includes receiving a design layout for a semiconductor device. The design layout contains a plurality of semiconductor patterns each oriented in a given direction. The method includes transforming the design layout into a mask layout. The semiconductor patterns in the mask layout are oriented in a plurality of different directions as a function of their respective location.
Bibliography:Application Number: US201514807999