发明申请
US20060087629A1 Optical lens elements, semiconductor lithographic patterning apparatus, and methods for processing semiconductor devices 审中-公开
光学透镜元件,半导体平版印刷图案形成装置以及半导体器件的处理方法

Optical lens elements, semiconductor lithographic patterning apparatus, and methods for processing semiconductor devices
摘要:
An optical lens element is disclosed, formed of single crystal spinel material, the optical element having an optical transmittance of not less than 75%. Also, a lithographic patterning apparatus is disclosed, including a radiation source and a mask having a pattern arranged downstream of the radiation source, the mask receiving radiation to provide a patterned beam. Further, a projection optic for projecting the patterned beam onto a substrate is provided, the projection optic having multiple optical lens elements, at least one of which is comprised of single crystal spinel material, and a substrate table for receiving the substrate is provided. In addition, methods for processing semiconductor devices are disclosed.
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