A Chemically Amplified Fullerene-Derivative Molecular Electron-Beam Resist

F Gibbons, HM Zaid, Mayandithevar Manickam, Jon Preece, Richard Palmer, Alexander Robinson

Research output: Contribution to journalArticle

37 Citations (Scopus)

Abstract

Current lithographic resists depend on large polymeric materials, which are starting to limit further improvements in line-width roughness and feature size. Fullerene molecular resists use much smaller molecules to avoid this problem. However, such resists have poor radiation sensitivity. Chemical amplification of a fullerene derivative using an epoxy crosslinker and a photoacid generator is demonstrated. The sensitivity of the material is increased by two orders of magnitude, and 20-nm line widths are patterned.
Original languageEnglish
Pages (from-to)2076
Number of pages1
JournalSmall
Volume3
Issue number12
DOIs
Publication statusPublished - 3 Dec 2007

Keywords

  • fullerenes
  • lithography
  • electron beams
  • resists
  • chemical amplification

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