Monocrystal silicon crucible

Abstract

The invention discloses a monocrystal silicon crucible. The monocrystal silicon crucible comprises a crucible part body which is configured to store a quartz crucible, wherein a crucible part comprises a first crucible unit, a second crucible unit and hole units; the first crucible unit is configured to be the bottom of the crucible part and is enclosed by segments of at least two parts; a throughhole is formed in the center of the first crucible unit; the second crucible unit is connected with the first crucible unit to form a side wall of the crucible part; the hole units are arranged on the second crucible unit and are used for communicating inner and outer spaces of the crucible part; the ratio of the hole units on the second crucible unit in the peripheral direction is gradually increased from one side of the bottom of the crucible part to the other side. According to the monocrystal silicon crucible, the crucible part body is set to be a two-section type structure and the through hole is formed in the center of the bottom; when the crucible is heated, stress caused by an inner quartz crucible is concentrated; meanwhile, the bottom is enclosed by a segment structure and the crucible is convenient to detach; the thickness of a side wall of the crucible is reduced so that the capacity of the crucible is enlarged; the crucible has the advantages of effectively controlling the oxygen content of monocrystal silicon, the yield of the monocrystal silicon and the like.

Description

technical field [0001] The invention belongs to the technical field of semiconductor and solar crystal growth equipment, and in particular relates to a single crystal silicon crucible. Background technique [0002] Monocrystalline silicon is a semiconductor material, which is commonly used to manufacture integrated circuits and other electronic components. After entering the 21st century, in response to increasingly serious environmental problems, the demand for clean energy has promoted the development of the photovoltaic market. Crystalline silicon solar cells It is the leading product in the photovoltaic industry, accounting for 90% of the market share. Driven by the Chinese market, my country's solar photovoltaic power generation industry has developed rapidly, and my country's annual output of solar cells has grown from 1% of the world's share to more than 70% of the world's share. Compared with other crystalline silicon solar cells, monocrystalline silicon solar cells...

AI Technical Summary

Problems solved by technology

[0006] Although the above-mentioned prior art provides a crucible using a combination of carbon materials, since the carbon material is a carbon fiber reinforced carbon matrix composite material composed of pure carbon elements, its molding is formed by laminating a carbon fiber net tire and a carbon cloth into a prefabricated However, its radial thermal conductivity is poor, and there are problems such as excessive energy consumption and high oxygen content in the obtained single crystal silicon, which in turn affects its electrical properties.

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