发明名称 Attenuated phase shift mask and a method for making the mask
摘要 The attenuated phase shift mask in accordance with one embodiment of the present invention for use in lithography at or below 0.20 mum and for use at wavelengths below 300 nm includes a substrate with a layer deposited on the substrate. The layer comprises a group IV, V or VI transitional metal nitride and silicon nitride SixNy. The attenuated phase shift mask has a thickness between about 500 angstroms and 2000 angstroms, where the group IV, V or VI transitional metal nitride comprises about ten to forty percent of the layer.
申请公布号 US6309780(B1) 申请公布日期 2001.10.30
申请号 US19990333316 申请日期 1999.06.15
申请人 ROCHESTER INSTITUTE OF TECHNOLOGY 发明人 SMITH BRUCE W.
分类号 G03F1/00;G03F1/08;(IPC1-7):G03F9/00 主分类号 G03F1/00
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