Bridgman method single crystal growth device with furnace mouth thermal field maintenance mechanism

Abstract

The invention relates to a Bridgman method single crystal growth device with a furnace mouth thermal field maintenance mechanism and belongs to the field of single crystal growth. The Bridgman method single crystal growth device solves the problem that Bridgman method single crystal growth operators habitually close doors and windows of a workshop to avoid furnace mouth thermal field disturbance so that a large amount of harmful gas in the workshop is accumulated and damages related production operators. The Bridgman method single crystal growth device comprises a Bridgman method single crystal growth furnace and is characterized in that a windshield is arranged around the Bridgman method single crystal growth furnace; the windshield comprises shield materials; and through the combination of pulleys and a track mechanism, the shield materials can be slide under the action of light push so that opening or closing of the windshield is realized. In single crystal growth, through the Bridgman method single crystal growth device with the furnace mouth thermal field maintenance mechanism, operators in the workshop can trustingly open doors and windows of the workshop so that air inside and outside the workshop can be circulated and great disturbance of a thermal field at the furnace mouth and around the furnace mouth is avoided.

Description

technical field [0001] The invention relates to a Bridgman method single crystal growth device with a furnace mouth temperature field maintenance mechanism, which belongs to the field of C30B single crystal growth. Background technique [0002] The crucible drop single crystal growth method, also known as the Bridgman single crystal growth method, is a commonly used single crystal growth method. The material used for single crystal growth is packed in a cylindrical crucible, descends slowly, and passes through a heating furnace with a certain temperature gradient, and the temperature of the furnace is controlled to be slightly higher than the melting point of the material. According to the nature of the material, the heating device can choose a resistance furnace or a high frequency furnace. When passing through the heating area, the material in the crucible is melted. When the crucible continues to descend, the temperature at the bottom of the crucible first drops below th...

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to develop a method that can not only keep the temperature field of the air around the furnace mouth basically stable, but also protect the relevant production personnel in view of the above-mentioned condition that the poisonous elements in the single crystal production workshop of the crucible drop method pollute the air in the workshop. A new crucible drop method single crystal growth device that protects it from toxic air damage

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