Stress-induced curvature of focused ion beam fabricated microcantilevers

Prewett, P. D. and Anthony, C. J. and Cheneler, D. and Ward, M. C. L. (2008) Stress-induced curvature of focused ion beam fabricated microcantilevers. Micro and Nano Letters, 3 (1). pp. 25-28. ISSN 1750-0443

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Microcantilevers with very low spring constants, as required to measure the short-range Casimir force, can be fabricated by focused ion beam thinning of conventional atomic force microscope cantilevers, but the resulting beams have a stress-induced curvature. This can be explained by consideration of the implanted gallium ions and associated damage effects in the etched surface. The problem can be overcome by using a complementary etch method in which top and bottom surfaces of the microcantilever are etched by the same amount.

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Journal Article
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Micro and Nano Letters
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08 Nov 2013 09:41
Last Modified:
01 Jan 2022 11:24