Influence of growth process parameters on weight sensor readings in the Stepanov (EFG) technique

Development of a start-to-finish automation system for shaped sapphire crystals growth

“…Such impact has been experimentally confirmed in Ref. [4]. This equation written as a general example for a thin ribbon is as follows:…”

“…[2] by 'in situ correction of program mass change' (set-point decrease) and in Ref. [6] by automated heating up of a crystallization zone, but in both cases these were only the patches for an improper type of controller. Fig.…”

The effect of the pressure difference across the free surface on the static meniscus shape in the case of ribbon growth by edge-defined film-fed growth (E.F.G.) method

“…The authors of papers [45,46] consider automated crystal growth processes based on weight sensors and computers. They give an expression for the weight of the meniscus contacted with crystal and shaper of arbitrary shape, in which there are terms related to the hydrodynamic pressure.…”

“…[47] Rosolenko shows that the hydrodynamic pressure is too small to be considered in the automated crystal growth and it is not clear what equation (of non Laplace type) was considered in Refs. [45,46] for the meniscus free surface. In Ref.…”

The effect of the pressure on the static meniscus shape in the case of tube growth by edge-defined film-fed growth (E.F.G.) method

“…[15,16] consider automated crystal growth processes based on weight sensors and computers. They give an expression for the weight of the meniscus, contacted with crystal and shaper of arbitrary shape, in which there are two terms related to the hydrodynamic factor.…”