DEVICE FOR GROWING MONOCRYSTALS Russian patent published in 1998 - IPC

FIELD: growing crystals. SUBSTANCE: device contains growth chamber with top cover, fasteners, melt crucible, heater, and seed crystal holder with seed crystal disposed inside, mounted on it, cylindrical heat screen with cover. The latter is connected with horizontal heat screen. Assembled heat screen is placed above crucible with initial material and melting is started. Melting completed, heat screen is displaced toward chamber cover and locked by fasteners. Seeding and drawing crystal is performed by conventional technique. EFFECT: shortened melting time, reduced power consumption, and increased yield of dislocation-free crystals. 2 cl, 2 dwg