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Growth method of quartz crystal

A quartz crystal and growth method technology, applied in crystal growth, single crystal growth, single crystal growth, etc., can solve the problems of increased inclusion impurity content and poor quality, reduce inclusion and floc defects, and improve efficiency , Improve the effect of internal quality

Active Publication Date: 2012-08-15
BEIJING SINOMA SYNTHETIC CRYSTALS CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the quality of the quartz crystal grown in this way has been greatly improved in the lower part, the quality of the upper part is still poor due to the increase in inclusions and impurities.

Method used

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  • Growth method of quartz crystal
  • Growth method of quartz crystal

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Embodiment Construction

[0018] A preferred embodiment of the present invention will be described below in conjunction with the accompanying drawings. figure 1 It is a schematic diagram of the structure that the seed crystal of the present invention is bound on the baffle and installed on the seed crystal frame. 1 is a seed crystal, 2 is a baffle, 3 is a seed crystal frame ring, 4 is a seed crystal frame, and there is a film 5 between the seed crystal 1 and the baffle plate 2 . There is a gap 6 between the baffles of the same layer. When preparing to grow quartz crystals, after the seed crystal 1, the film 5 and the baffle 2 are bound, they are placed on the seed crystal frame ring 3, and the multi-layer seed crystal frame ring 3 is connected together by a bracket to form a multiple seed crystal Rack 4, which are put into the autoclave together for the growth of quartz.

[0019] The specific operation steps of single-sided quartz crystal growth of the present invention are described in detail below:...

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Abstract

The invention discloses a method for developing a quartz crystal, which consists of the following procedures: 1) cutting an original crystal blank to obtain a lamellar seed crystal and washing the seed crystal, wherein the seed crystal cutting direction is along the x direction or the Z direction, or a direction along an random angle between Z-Y direction; 2) horizontally placing the seed crystal, sequentially placing a film and a baffle of metal or organic material on the seed crystal, and fastening the three; 3) putting the fastened seed crystal and the baffle together in alkali solution ina high pressure kettle, and keeping the horizontal state of the seed crystal for the single sided development of the quartz. Compared with a method of double sided developing the quartz with a background technique, the method of single sided developing the quartz by means of a shading method proposed by the invention ensures that not only a complete optical single crystal of a high quality can bedeveloped, but the efficiency is doubled with the same developing time and developing space.

Description

technical field [0001] The invention relates to a crystal growth method, in particular to a single-sided quartz crystal growth method. Background technique [0002] Quartz crystal is a high-grade optical crystal. Mainly based on its optical transmission, optical rotation, and birefringence effects, it is used to manufacture prisms, lenses, optical wave plates, and optical low-pass filters in digital cameras. [0003] In the past, optical quartz crystals were grown on both sides by hanging the seed crystal vertically. This growth method improves the crystal quality by adjusting the process parameters of crystal growth, but a large amount of impurities brought by solution convection will adhere to the growth interface. It is difficult to improve the crystal quality to a greater extent. In order to significantly improve the quality of crystals and meet the high-quality material requirements for small optical devices, new processes must be used to improve the quality of quartz...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C30B29/18C30B7/08
Inventor 华大辰孙志文李法荟王晓刚尹利君张绍锋王晓东张璇王忠何庭秋
Owner BEIJING SINOMA SYNTHETIC CRYSTALS CO LTD
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