Image Stepper: High-resolution image processing using distributed computing

被引:0
作者
Tympel, V [1 ]
Witt, R [1 ]
Layland, S [1 ]
机构
[1] JENTECH Engn GmbH, D-07749 Jena, Germany
来源
METROLOGY, INSPECTION, AND PROCESS CONTROL FOR MICROLITHOGRAPHY XVII, PTS 1 AND 2 | 2003年 / 5038卷
关键词
image processing; mosaics; distributed computing; extended depth of focus;
D O I
10.1117/12.482639
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
A high-speed image, processing. lids been created. Distributed, computing is used, to get the necessary resources. Controlling a hiah-resolution microscope, the image processing systemgrabs thousands of single images from different XYZ-positions. The system can get all available optical information from a greater microscopical structure like a compete. chip on a wafer. Image pre-processing functions are used to eliminate optical effects like shading. A digital contrast enhancement is also available to get, a better image quality. The scanning process can take several hour's if a high-aperture objective lens is used. At the end we have a complex cluster image structured and after the image post-processing the creation of the mosaic image can be started. The post-processing functions reduce the three-dimensional data to two-dimensional data. Best focus images can be. defined or, extended depth of focus [EDoF] images can be created. XY-neighboring images have overlapped areas. 16 two runs (X- and Y-run) a correlation function define offset values. In a XY-run all available offset values define the final offset, values. The result can be checked and manual changes are possible before writing the final mosaic image file.
引用
收藏
页码:733 / 740
页数:8
相关论文
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