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THERMAL CONDUCTION TYPE SEED CRYSTAL FOR PRODUCING SEMICONDUCTOR SINGLE CRYSTAL AND GROWTH OF SINGLE CRYSTAL BY THE THERMAL CONDUCTION TYPE SEED CRYSTAL
THERMAL CONDUCTION TYPE SEED CRYSTAL FOR PRODUCING SEMICONDUCTOR SINGLE CRYSTAL AND GROWTH OF SINGLE CRYSTAL BY THE THERMAL CONDUCTION TYPE SEED CRYSTAL
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机译:用于生产半导体单晶的导热型晶种,以及通过导热型晶种的单晶生长
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摘要
PROBLEM TO BE SOLVED: To provide a method for growing a single crystal by immersing a seed crystal in a melt and pulling and growing the single crystal without causing necking in the production of a semiconductor single crystal by a Czochralski method. ;SOLUTION: This thermal conduction type seed crystal 10 is constituted of a growing seed 1 whose lower end is immersed in a melt to grow a semiconductor single crystal, a thermal conduction member 2 which is attached to the growing seed 1 and immersed in the melt before the growing seed 1 is immersed in the melt to transfer the heat of the melt to the growing seed 1 and a quartz cylinder 3 for covering the thermal conduction member 2. The thermal conduction member 2 is attached to the growing seed 1 so as to surround the growing seed and has plural slits 2c arranged in the vertical direction from the lower part to the bottom part. The quartz cylinder 3 has the same number of inverted wedge-shaped notch parts as that of the slits 2c and wedge- shaped parts 3b formed between two adjoining notch parts are mutually different in length in the vertical direction.;COPYRIGHT: (C)2000,JPO
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