Zobrazeno 1 - 10
of 49
pro vyhledávání: '"U. Rehse"'
Publikováno v:
Applied Mathematical Modelling. 35:1331-1336
In this paper, a novel method for calculation of island-size distribution in one-dimensional submonolayer epitaxial growth based on difference-differential rate equations is introduced. Moreover, precise analytic expressions for the first several Tay
Autor:
D. Reinhardt, Natasha Dropka, U. Sahr, Wolfram Miller, Peter Rudolph, Frank Dr. Büllesfeld, U. Rehse, Olaf Klein
Publikováno v:
Journal of Crystal Growth. 318:275-279
During unidirectional solidification of multicrystalline (mc) silicon, the adjustment of controllable mixing patterns with high stirring efficiency can be obtained by application of a double-frequency travelling magnetic field (TMF). It is assumed th
Publikováno v:
Journal of Crystal Growth. 318:1034-1038
Generally, well-tailored control of fluid flow is required for growing crystals with high uniformity of chemical composition. This is of particular importance in the case of layer growth, where both composition and thickness strongly depend on the ma
Publikováno v:
Journal of Crystal Growth. 312:1407-1410
Buoyancy-driven flow plays an important role in the solidification of multi-crystalline silicon in rectangular crucibles and has been subject of recent investigations (Miyazawa et al., 2008 [1,2] , Delannoy et al., 2007 [3] ). Though the driving forc
Autor:
Christiane Lechner, Christiane Frank-Rotsch, Frank-M. Kießling, Olaf Klein, Jürgen Sprekels, Peter Rudolph, Peter Philip, U. Rehse, Pierre-Etienne Druet, Wolfram Miller
Publikováno v:
Journal of Crystal Growth. 310:1523-1532
We present numerical simulations of vapor pressure controlled (VCz) and liquid encapsulated Czochralski (LEC) crystal growth of GaAs under the influence of a traveling magnetic field (TMF) with melt diameters of approximately 6 in and melt heights of
Publikováno v:
Journal of Crystal Growth. 266:60-66
Axisymmetric and 3D calculations of melt flow have been performed for a configuration used at the vapour-pressure-controlled Czochalski growth of GaAs single crystals. Thermal boundary conditions were adapted from a global simulation of the temperatu
Publikováno v:
Journal of Crystal Growth. 230:143-147
The flow in the GaAs and boron oxide melt in an equipment used for the vapour pressure controlled Czochralski (VCz) growth has been calculated. Two-dimensional-axisymmetric calculations have been performed by using the commercial general purpose prog
Autor:
U. Rehse, Wolfram Miller
Publikováno v:
Crystal Research and Technology. 36:685-694
The influence of the melt flow on the temperature field and interface during the vapour-pressure-controlled growth of GaAs was studied numerically with the commercial general-purpose program FIDAP TM . The thermal boundary conditions for the domain o
Publikováno v:
Solid-State Electronics. 44:825-830
During the growth process of single bulk crystals from melt, the defect density is strongly affected by the shape of the melt/crystal interface. The shape of the interface is governed by the construction of the growth equipment including the heating
Publikováno v:
Crystal Research and Technology. 34:441-448
Steady-state simulations of fluid flow and temperature field are presented for an equipment that is used to grow Zinc Selenide single crystals from the gaseous phases via physical (PVT) or chemical vapour transport (CVT). Due to the horizontal arrang