Vol. 117, Issue 6, June 2010, pp.71-77

Development of Analytical Results for the Fluidic Self-alignment Torque on a Silicon Die

R. C. WOODS

Department of Electrical and Computer Engineering, Louisiana State University,

Baton Rouge, LA 70803-5901, U.S.A.

Tel: (225) 578 8961, fax: (225) 578 5200

E-mail: cwoods@lsu.edu

Received: 2 May 2010   /Accepted: 21 June 2010   /Published: 25 June 2010

Abstract: Both the present author and Berthier et al. have recently presented independent analytic calculations of the restoring torque exerted on a silicon die subjected to capillary forces during self-alignment to a hydrophilic area on a substrate. In this paper, these results are developed further to reflect the correct symmetry properties required of the torque calculations over a wide range of angles.

Keywords: Self-alignment, Misalignment, Silicon die, Self-assembly, Surface tension, Free surface energy, Analytical techniques

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