A clamp for holding a hollow composite silicon core

Abstract

The invention discloses a clamping piece for clamping a hollow composite silicon core, which comprises a base, a clamping flap, a lock nut and an inner block, the clamping flap is installed on the base, and the clamping flap is a hollow conical structure , the lock nut is installed on the periphery of the connection between the clamp flap and the base, and the lock nut has a through hole. The lower end of the side wall of the through hole is screwed to the outer wall of the base, and the upper end of the side wall of the through hole is in close contact with the outer wall of the flap. The inner block is located in the flap, and the lower end of the inner block is connected to the upper surface of the base, and there is a gap between the outer side wall of the inner block and the inner side wall of the flap, and the gap is used for Place the combined silicon core. The clamping piece provided by the present invention for clamping hollow composite silicon cores has a simple structure and can clamp hollow composite silicon cores, so that the deposition efficiency of crystalline silicon is higher, the deposition time is shortened, and the energy consumption is reduced.

Description

technical field [0001] The invention relates to the field of transistor production, in particular to a clip for clamping a hollow combined silicon core. Background technique [0002] Crystalline silicon is the raw material for the manufacture of semiconductors and photovoltaic cells. The improved Siemens method and the SiH4 method are the mainstream technologies for producing crystalline silicon in the world. The main principle is: raw material gas undergoes a chemical vapor deposition reaction on the hot silicon core surface in a bell-type reduction furnace to generate crystalline silicon. The root of the silicon core is clamped on the clamp and installed vertically in the crystalline silicon reduction furnace. The larger the silicon core surface area, the faster the deposition rate, the shorter the overall deposition time, and the lower the energy consumption. [0003] Composite silicon core is spliced ​​by connecting several silicon strips or rectangular silicon cores e...

AI Technical Summary

Problems solved by technology

[0004] However, the current silicon core clamps used in crystalline silicon reduction furnaces can only clamp one silicon core, and cannot clamp combined silicon cores, resulting in a small deposition surface area and a slow deposition rate.

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