Arrangement and method for manufacturing a crystal from a melt of a raw material and single crystal
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United States of America Patent
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Jun 14, 2016
Grant Date -
Apr 17, 2014
app pub date -
Dec 20, 2013
filing date -
Jun 6, 2007
priority date (Note) -
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Abstract
An arrangement for manufacturing a crystal of the melt of a raw material comprises: a furnace having a heating device with one or more heating elements, which are configured to generate a gradient temperature field directed along a first direction, a plurality of crucibles for receiving the melt, which are arranged within the gradient temperature field side by side, and a device for homogenizing the temperature field within a plane perpendicular to the first direction in the at least two crucibles. The arrangement further has a filling material inserted within a space between the crucibles wherein the filling shows an anisotropic heat conductivity. Additionally or alternatively, the arrangement may comprise a device for generating magnetic migration fields, both the filling material having the anisotropic heat conductivity and the device for generating magnetic migration fields being suited to compensate or prevent the formation of asymmetric phase interfaces upon freezing of the raw melt.
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