Patent ID: 6071339
Filing Date: 2000-06-06
Classification: C30B,Y10S,Y10T

Abstract:
Continuous crystal plate growth apparatus comprising a source of starter material, a valve for supplying material from the starter material source, a first, hot zone communicating with the valve for heating the material, a dopant source, a dopant controller connected to the dopant source and connected to the hot zone for supplying dopant into the material in the hot zone, a second reduced heat zone connected to the hot zone for reducing heat in the material and forming a solid crystal plate from the material, a receiver connected to the reduced heat zone for receiving solid plate from the second, reduced heat zone and advancing the solid plate, a lowered temperature heating zone adjacent the receiver for lowering temperature of the solid crystal plate on the receiver, an enclosure enclosing the zones and the solid crystal plate and a controlled gaseous environment within the enclosure.