Inspection performances of the electron beam inspection system based on projection electron microscopy

被引:5
作者
Nagahama, I [1 ]
Onishi, A [1 ]
Yamazaki, Y [1 ]
Satake, T [1 ]
Noji, N [1 ]
机构
[1] Toshiba Co Ltd, Isogo Ku, Yokohama, Kanagawa 2358522, Japan
来源
METROLOGY, INSPECTION, AND PROCESS CONTROL FOR MICROLITHOGRAPHY XVIII, PTS 1 AND 2 | 2004年 / 5375卷
关键词
EBI-PEM; EBI-SEM; capture rate; inspection speed; pixel size;
D O I
10.1117/12.534909
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The production prototype of an electron beam inspection system based on projection electron microscopy (EBI-PEM) has been developed. Inspection performances of the EBI-PEM were evaluated using the programmed defect standard wafer delivered by SELETE. We confirmed the EBI-PEM had the same inspection speed, 9 cm(2)/h, as the conventional electron beam inspection system based on scanning electron microscopy (EBI-SEM) under the following conditions: pixel size of 50 nm and defect capture rate of more than 80%. Furthermore, the EBI-PEM achieved an inspection speed of 36 cm(2)/h. This inspection speed is four times higher than that of the EBI-SEM. The EBI-PEM would be an effective tool for inspection subsequent to the 90 nm technology node generation.
引用
收藏
页码:921 / 928
页数:8
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