Invention Application
US20120002182A1 Lithographic Apparatus and Method 有权
平版印刷设备和方法

Lithographic Apparatus and Method
Abstract:
A lithographic apparatus includes a projection system configured to project a patterned beam of radiation onto a substrate. The projection system being provided with an opening through which the patterned beam of radiation may pass. At least part of the opening comprises a sloped surface of a wall of the projection system and a sloped surface of a mirror of the projection system.
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