Paper Title:
Recent Nanofabrication of Silicon Dioxide on Silicon Wafer Using AFM Operated at Low Temperature
  Abstract

Field-induced oxidation has become a promising process that is capable of directly producing high-resolution surface oxide patterns on variety materials. This report initiated the idea of the possibility of a controlled nanofabrication of SiO2 on silicon wafer by utilizing a frozen humid air film. A low temperature (-70°C) operation of an atomic force microscope (AFM) was used to condense ambient humidity (40%) to perform a thin frozen water layer covering a silicon wafer surface. A scanning probe was contacted with the layer and a zero bias voltage was applied to the sample surface with the AFM probe tip connected to the reference -2.44V. The frozen water film acted both as an electrolyte to form silicon dioxide and as a resource of hydroxide. Using this technique (a) a consistency in height of 6 nm silicon dioxide patterns layer could be achieved showing that the effect of tip vibration could be reduced; (b) easy to remove frozen water by just operating the AFM to the ambient temperature; (c) it is possible to control thickness by making different humidity.

  Info
Periodical
Chapter
Green Design Technology
Edited by
Aimin Yang, Jingguo Qu and Xilong Qu
Pages
317-320
DOI
10.4028/www.scientific.net/AMM.84-85.317
Citation
A. G. E. Sutjipto, Afzeri, A. A. Shafie, "Recent Nanofabrication of Silicon Dioxide on Silicon Wafer Using AFM Operated at Low Temperature", Applied Mechanics and Materials, Vols. 84-85, pp. 317-320, 2011
Online since
August 2011
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$32.00
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