Автор |
K W Lee |
Автор |
J T L Thong |
Дата выпуска |
1999-11-01 |
dc.description |
A simple technique to characterize the response of a SEM deflection system is described. By measuring the delay in the SEM video signal as the primary beam is deflected and swept over a knife-edge, the transient deflection response can be mapped out. The transfer function of the beam deflection is then approximated by exponential functions and appropriate analogue filters are designed to pre-emphasise the deflection coil drive signal in order to increase the deflection speed. This technique is used to decrease the deflection response time from typically ~6 µs to ~0.5 µs, thereby allowing the implementation of non-raster scanning schemes that require fast point-to-point deflection. |
Формат |
application.pdf |
Издатель |
Institute of Physics Publishing |
Название |
Improving the speed of scanning electron microscope deflection systems |
Тип |
paper |
DOI |
10.1088/0957-0233/10/11/316 |
Electronic ISSN |
1361-6501 |
Print ISSN |
0957-0233 |
Журнал |
Measurement Science and Technology |
Том |
10 |
Первая страница |
1070 |
Последняя страница |
1074 |
Аффилиация |
K W Lee; Centre for Integrated Circuit Failure Analysis and Reliability, Faculty of Engineering, National University of Singapore, 10 Kent Ridge Crescent, Singapore 119260, Singapore |
Аффилиация |
J T L Thong; Centre for Integrated Circuit Failure Analysis and Reliability, Faculty of Engineering, National University of Singapore, 10 Kent Ridge Crescent, Singapore 119260, Singapore |
Выпуск |
11 |