High spatial resolution time-of-Flight secondary ion mass spectrometry for the masses

A novel orthogonal ToF FIB-SIMS instrument with in situ AFM

James A. Whitby, Fredrik Östlund, Peter Horvath, Mihai Gabureac, Jessica McQuiston, Ivo Utke, Markus Hohl, Libor Sedláček, Jaroslav Jiruše, Vinzenz Friedli, Mikhael Bechelany, Johann Michler

Research output: Contribution to journalArticle

36 Citations (Scopus)

Abstract

We describe the design and performance of an orthogonal time-of-flight (TOF) secondary ion mass spectrometer that can be retrofitted to existing focused ion beam (FIB) instruments. In particular, a simple interface has been developed for FIB/SEM instruments from the manufacturer Tescan. Orthogonal extraction to the mass analyser obviates the need to pulse the primary ion beam and does not require the use of monoisotopic gallium to preserve mass resolution. The high-duty cycle and reasonable collection efficiency of the new instrument combined with the high spatial resolution of a gallium liquid metal ion source allow chemical observation of features smaller than 50nm. We have also demonstrated the integration of a scanning probe microscope (SPM) operated as an atomic force microscope (AFM) within the FIB/SEM-SIMS chamber. This provides roughness information, and will also allow true three dimensional chemical images to be reconstructed from SIMS measurements.

Original languageEnglish (US)
Article number180437
JournalAdvances in Materials Science and Engineering
Volume2012
DOIs
StatePublished - Jan 9 2012
Externally publishedYes

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Focused ion beams
Secondary ion mass spectrometry
Gallium
Microscopes
Scanning electron microscopy
Mass spectrometers
Ion sources
Liquid metals
Ion beams
Metal ions
Surface roughness
Ions
Scanning

ASJC Scopus subject areas

  • Materials Science(all)
  • Engineering(all)

Cite this

High spatial resolution time-of-Flight secondary ion mass spectrometry for the masses : A novel orthogonal ToF FIB-SIMS instrument with in situ AFM. / Whitby, James A.; Östlund, Fredrik; Horvath, Peter; Gabureac, Mihai; McQuiston, Jessica; Utke, Ivo; Hohl, Markus; Sedláček, Libor; Jiruše, Jaroslav; Friedli, Vinzenz; Bechelany, Mikhael; Michler, Johann.

In: Advances in Materials Science and Engineering, Vol. 2012, 180437, 09.01.2012.

Research output: Contribution to journalArticle

Whitby, JA, Östlund, F, Horvath, P, Gabureac, M, McQuiston, J, Utke, I, Hohl, M, Sedláček, L, Jiruše, J, Friedli, V, Bechelany, M & Michler, J 2012, 'High spatial resolution time-of-Flight secondary ion mass spectrometry for the masses: A novel orthogonal ToF FIB-SIMS instrument with in situ AFM', Advances in Materials Science and Engineering, vol. 2012, 180437. https://doi.org/10.1155/2012/180437
Whitby, James A. ; Östlund, Fredrik ; Horvath, Peter ; Gabureac, Mihai ; McQuiston, Jessica ; Utke, Ivo ; Hohl, Markus ; Sedláček, Libor ; Jiruše, Jaroslav ; Friedli, Vinzenz ; Bechelany, Mikhael ; Michler, Johann. / High spatial resolution time-of-Flight secondary ion mass spectrometry for the masses : A novel orthogonal ToF FIB-SIMS instrument with in situ AFM. In: Advances in Materials Science and Engineering. 2012 ; Vol. 2012.
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