A process for the recrystallization of layer structures by means of zone melting, and its use

A process for the recrystallization of layer structures by means of zone melting, be considered in the at least two heat sources linearly produced melt zones through the layer by means of a relative movement of the heat sources to the layer in the direction perpendicular to the linear melting zones, wherein the melting zones simultaneously through the entire layer lower portion wise overlap melting zones with already re-crystallized zones are pulled, so that a complete recrystallization of the layer is ensured, characterized in that (a) in a first phase, melt phase) in to the linear melting zones vertically d + a and are drawn with a high crystalline quality enabling velocity through the layer, d represents the at least two melting zones simultaneously over a first distance to the spacing of two adjacent heat sources and a zones vertically second distance n - 1) · d - b ...