ELECTRON BEAM LITHOGRAPHY APPARATUS
PROBLEM TO BE SOLVED: To perform correction of beam drift due to contamination, without increasing the apparatus cost.SOLUTION: An electron beam lithography apparatus includes: a deflector having at least a pair of first electrode and second electrode for deflecting an electron beam impinging on a s...
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Zusammenfassung: | PROBLEM TO BE SOLVED: To perform correction of beam drift due to contamination, without increasing the apparatus cost.SOLUTION: An electron beam lithography apparatus includes: a deflector having at least a pair of first electrode and second electrode for deflecting an electron beam impinging on a specimen; a member coated with an organic material becoming the generation source of contamination, and disposed at a position where an electron beam deflected by the deflector can impinge; and deflection control means for making the electron beam impinge on the organic material, applied to the member, while deflecting in a direction toward one electrode, when the electron beam drifts in a direction toward any one of the first or second electrode.SELECTED DRAWING: Figure 12
【課題】コンタミネーションによるビームドリフトの補正を、装置のコストを増大させることなく行う。【解決手段】本実発明に係る電子線描画装置は、試料へ入射する電子線を偏向する少なくとも1対の第1電極及び第2電極を有する偏向器と、コンタミネーションの発生源となる有機物が塗布され、偏向器によって偏向された電子線が入射可能な位置に配置された部材と、第1電極及び第2電極のうちのいずれか一方の電極へ向かう方向へ、電子線がドリフトするときに、電子線を一方の電極へ向かう方向へ偏向させて部材に塗布された有機物へ入射させる偏向制御手段と、を備える。【選択図】図12 |
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