发明申请
US20070031739A1 Test mask for optical and electron optical systems. 失效
光学和电子光学系统的测试掩模。

Test mask for optical and electron optical systems.
摘要:
A test mask 1 for microscopy is disclosed, which is formed on a substrate of quartz. The test mask 1 comprises a multiplicity of sub-masks 4, which are implemented such that each sub-mask 4 comprises structures which differ within a sub-mask 4 with regard to form and size. In addition, the structures of the individual sub-masks 4 are designed for optical or particle optical measurements according to size.
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