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A thermal field structure of square sapphire single crystal furnace

A sapphire and furnace heat field technology, applied in the directions of single crystal growth, single crystal growth, crystal growth, etc., can solve the problem of low yield of pear-shaped crystal ingots, achieve good thermal insulation effect, improve yield, increase The effect of radians

Active Publication Date: 2018-02-09
HARBIN AURORA OPTOELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Harbin Orient Optoelectronics Technology Co., Ltd. has an improved Kyropoulos method with independent intellectual property rights - "cold shoulder micro-pulling method", although it has greatly improved the manufacturing cost and yield compared with the traditional Kyropoulos method. , for square materials, the yield of pear-shaped boules is still low

Method used

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  • A thermal field structure of square sapphire single crystal furnace
  • A thermal field structure of square sapphire single crystal furnace
  • A thermal field structure of square sapphire single crystal furnace

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Embodiment Construction

[0025] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0026] combine figure 1 , the present embodiment comprises upper heat shield, side heat shield and lower heat shield, crucible cover 9, and square crucible 12, square tray 11, circular pillar 10 made of metal tungsten, right-angled copper conductive plate 4 and tungsten It consists of a square heating body formed by connecting rods 5. The upper heat shield is composed of molybdenum heat shield 1, zirconia fiber brick insulation structure 2 and stainless steel bracket 3, the inner screen 6 of the side heat shield is a right-angle lap structure of multi-layer molybdenum plates, and the outer screen is square zirconia fiber Brick insulation barrel structure 7, a layer of ring-shaped zirconia fiber brick structure 8 is placed on the top of the side heat shield, and the lower heat shield is composed of square molybdenum sheet heat shield 13 and zirconia fiber brick insul...

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Abstract

The invention provides a square sapphire monocrystal furnace heat field structure. The square sapphire monocrystal furnace thermal field structure comprises an upper heat shield, a side heat shield, a lower heat shield, a crucible cover, a square crucible made of metallic tungsten, a square pallet, a circular pillar, and a square heating body structure formed by connecting a right-angled copper current conducting plate with a tungsten rod. The square sapphire monocrystal furnace heat field structure has the advantages of good heat insulation effect, stable temperature field, reasonable temperature gradient, few defects in grown sapphire crystals, and small heat stress.

Description

(1) Technical field [0001] The invention relates to a thermal field structure of a sapphire single crystal furnace, in particular to a thermal field structure of a square sapphire single crystal furnace. (2) Background technology [0002] Sapphire single crystal has a unique lattice structure, excellent mechanical properties and good thermal properties, and can work under harsh conditions close to 2000 ° C. It is known for its high strength, high hardness, erosion resistance and excellent comprehensive properties. It is widely used in science and technology, space vehicles, windows of high-intensity lasers, national defense and civil industry, and many other fields of electronic technology. It has also become the preferred material in the current LED market. [0003] With the development of science and technology, the market not only requires sapphire to have higher quality and larger size, but also requires Changjing enterprises to find ways to continuously reduce productio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C30B29/20C30B17/00
CPCC30B17/00C30B29/20
Inventor 左洪波杨鑫宏张学军李铁
Owner HARBIN AURORA OPTOELECTRONICS TECH
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