How to overcome the principal limitations of SEM columns for the use in E-beam lithography?

Citation
Sv. Dubonos et al., How to overcome the principal limitations of SEM columns for the use in E-beam lithography?, MICROEL ENG, 46(1-4), 1999, pp. 243-246
Categorie Soggetti
Eletrical & Eletronics Engineeing
Journal title
MICROELECTRONIC ENGINEERING
ISSN journal
01679317 → ACNP
Volume
46
Issue
1-4
Year of publication
1999
Pages
243 - 246
Database
ISI
SICI code
0167-9317(199905)46:1-4<243:HTOTPL>2.0.ZU;2-K
Abstract
SEM based lithography systems create positioning errors when used for fast writing, because the electron beam cannot follow the addressing speed due t o the limitation by electromagnetic deflection. This effect is highly depen ding on the individual SEM type and leads to unwanted gaps in exposure patt erns. A new method of "Dynamic Compensation" has been developed, which allo ws to compensate such errors completely after characterizing the dynamic be haviour of the individual SEM. "ELPHY Quantum" provides characterization to ols and allows to write nearly perfect patterns with any SEM at fastest spe ed even without beam blanker.