Microcantilever based distance control between a probe and a surface

Robert Molenaar, Jord Prangsma, Kees van der Werf, Martin L. Bennink, Christian Blum, Vinod Subramaniam

Research output: Contribution to journalArticleAcademicpeer-review

4 Citations (Scopus)

Abstract

We demonstrate a method to control the distance between a custom probe and a sample on a μm to nm scale. The method relies on the closed-loop feedback on the angular deflection of an in-contact AFM microcantilever. High performance in stability and accuracy is achieved in this method by taking advantage of the small mechanical feedback path between surface and probe. We describe how internal error sources that find their origin in the microcantilever and feedback can be minimized to achieve an accurate and precise control up to 3 nm. In particular, we investigated how hysteresis effects in the feedback caused by friction forces between tip and substrate can be minimized. By applying a short calibration procedure, distance control from contact to several micrometers probe-sample distance can be obtained with an absolute nanometer-scale accuracy. The method presented is compatible with any probe that can be fixed on a microcantilever chip and can be easily built into existing AFM systems.
Original languageUndefined
Article number063706
Pages (from-to)-
Number of pages8
JournalReview of scientific instruments
Volume86
Issue number063706
DOIs
Publication statusPublished - 2015

Keywords

  • METIS-310741
  • IR-96700

Cite this

Molenaar, Robert ; Prangsma, Jord ; van der Werf, Kees ; Bennink, Martin L. ; Blum, Christian ; Subramaniam, Vinod. / Microcantilever based distance control between a probe and a surface. In: Review of scientific instruments. 2015 ; Vol. 86, No. 063706. pp. -.
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Microcantilever based distance control between a probe and a surface. / Molenaar, Robert; Prangsma, Jord; van der Werf, Kees; Bennink, Martin L.; Blum, Christian; Subramaniam, Vinod.

In: Review of scientific instruments, Vol. 86, No. 063706, 063706, 2015, p. -.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Microcantilever based distance control between a probe and a surface

AU - Molenaar, Robert

AU - Prangsma, Jord

AU - van der Werf, Kees

AU - Bennink, Martin L.

AU - Blum, Christian

AU - Subramaniam, Vinod

PY - 2015

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AB - We demonstrate a method to control the distance between a custom probe and a sample on a μm to nm scale. The method relies on the closed-loop feedback on the angular deflection of an in-contact AFM microcantilever. High performance in stability and accuracy is achieved in this method by taking advantage of the small mechanical feedback path between surface and probe. We describe how internal error sources that find their origin in the microcantilever and feedback can be minimized to achieve an accurate and precise control up to 3 nm. In particular, we investigated how hysteresis effects in the feedback caused by friction forces between tip and substrate can be minimized. By applying a short calibration procedure, distance control from contact to several micrometers probe-sample distance can be obtained with an absolute nanometer-scale accuracy. The method presented is compatible with any probe that can be fixed on a microcantilever chip and can be easily built into existing AFM systems.

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