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Multiple Electron Beam Lithography for High Throughput

생산성 향상을 위한 멀티빔 리소그라피

  • Published : 2005.06.01

Abstract

A Multiple electron beam lithography system with arrayed microcolumns has been developed for high throughput applications. The small size of the microcolumn opens the possibility for arrayed operation on a scale commensurate. The arrayed microcolumns based on of Single Column Module (SCM) concept has been fabricated and successfully demonstrated. Low energy microcolumn lithography has been operated in the energy range from 250 eV to 300 eV for the generation of nano patterns. Probe beam current at the sample was measured about >1 nA at a total beam current of $0.5\;{\mu}A$ and a working distance of $\~1\;mm$. The magnitude of probe beam current is strong enough for the low energy lithography. The thin layers of PMMA resist have been employed. The results of nano-patterning by low energy microcolumn lithography will be discussed.

생산성 향상을 위하여 정렬된 마이크로칼럼을 이용하여 멀티-전자빔 리소그라피 장치를 개발하였다. 마이크로칼럼은 매우 작은 크기를 가지고 있어 병렬구조로 정렬하여 작동시킬 수 있다. Single Column Module(SCM) 구조의 멀티 전자빔 리소그라피 시스템과 전자칼럼을 제작하여 250 eV에서 300 eV 에너지 범위에서의 저에너지 마이크로칼럼 리소그라피를 성공적으로 수행하였다. 전자방출원에서 방출되는 전자빔의 총 전류가 $0.5\;{\mu}A$일 때, 샘플에서의 전류는 >1 nA으로 측정되었으며 리소그라피 패텅닝에서 사용된 working distance은 $\~1\;mm$였다.

Keywords

References

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