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Mechanism of Motion of an Optical Fiber Aligned by a Solder Droplet

Published online by Cambridge University Press:  10 February 2011

Adam Powell ,
James Warren  and
Christopher Bailey
Adam Powell
Affiliation:
National Institute of Standards and Technology, Gaithersburg, Maryland, USA
James Warren
Affiliation:
National Institute of Standards and Technology, Gaithersburg, Maryland, USA
Christopher Bailey
Affiliation:
University of Greenwich, Department of Computing and Mathematical Sciences, London, UK
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Abstract

Solder is often used as an adhesive to attach optical fibers to a circuit board. In this proceeding we will discuss efforts to model the motion of an optical fiber during the wetting and solidification of the adhesive solder droplet. The extent of motion is determined by several competing forces, during three “stages” of solder joint formation. First, capillary forces of the liquid phase control the fiber position. Second, during solidification, the presence of the liquid-solid-vapor triple line as well as a reduced liquid solder volume leads to a change in the net capillary force on the optical fiber. Finally, the solidification front itself impinges on the fiber. Publicly-available finite element models are used to calculate the time-dependent position of the solidification front and shape of the free surface.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 531: Symposium DD – Reliabilty of Photonics Materials & Structures , 1998 , 95
Copyright
Copyright © Materials Research Society 1998

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