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Square sapphire monocrystal furnace heat field structure

A technology of sapphire and furnace heat field, which is applied in the direction of single crystal growth, single crystal growth, crystal growth, etc., can solve the problem of low yield rate of pear-shaped crystal ingots, achieve good heat preservation effect, increase yield rate, increase Radian effect

Active Publication Date: 2015-07-29
HARBIN AURORA OPTOELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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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  • Square sapphire monocrystal furnace heat field structure
  • Square sapphire monocrystal furnace heat field structure
  • Square sapphire monocrystal furnace heat field structure

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Embodiment Construction

[0026] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0027] combine figure 1 , the present embodiment comprises upper heat shield, side heat shield and lower heat shield, crucible lid 9, and square crucible 12, square tray 11, circular pillar 10 made of metal tungsten, right-angled copper conductive plate 4 and tungsten The square heating body formed by connecting rods 5 is composed. 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 insulati...

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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

[0001] (1) Technical field [0002] 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 [0003] Sapphire single crystal has a unique lattice structure, excellent mechanical properties and good thermal properties. It can work under the harsh conditions of high temperature close to 2000 ℃. 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. [0004] 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 production costs. Only in this way can they be invincible in the market . Therefore, growin...

Claims

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Application Information

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Patent Type & Authority Applications(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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