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Tellurium-zinc-cadmium crystal surface polishing device

A crystal surface, cadmium zinc telluride technology, applied in grinding drive devices, grinding/polishing equipment, grinding machines, etc., can solve the problems of low manual grinding efficiency of soft and brittle cadmium zinc telluride crystal ingots, so as to improve efficiency and realize automation Effect

Active Publication Date: 2020-02-14
11TH RES INST OF CHINA ELECTRONICS TECH GROUP CORP
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  • Abstract
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Problems solved by technology

[0003] The technical problem to be solved by the present invention is the problem of low manual grinding efficiency during the surface grinding and polishing process of the soft and brittle CdZnTe crystal ingot, and a grinding and polishing device for the surface of the CdZnTe crystal ingot is provided

Method used

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  • Tellurium-zinc-cadmium crystal surface polishing device
  • Tellurium-zinc-cadmium crystal surface polishing device
  • Tellurium-zinc-cadmium crystal surface polishing device

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Embodiment Construction

[0047] In order to further explain the technical means and functions adopted by the present invention to achieve the intended purpose, the present invention will be described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0048] It should be noted that the terms "first" and "second" in the description and claims in the embodiments of the present invention and the above drawings are used to distinguish similar objects, and not necessarily used to describe a specific sequence or priority. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments described herein can be practiced in sequences other than those illustrated or described herein.

[0049] "Plural or several" mentioned herein means two or more. "And / or" describes the association relationship of associated objects, indicating that there may be three types of relationships, for example, A and / or B may indicate: ...

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Abstract

The invention provides a tellurium-zinc-cadmium crystal surface polishing device used for solving the problem that the manual grinding efficiency is low in the soft and brittle tellurium-zinc-cadmiumcrystal ingot surface polishing process. The tellurium-zinc-cadmium crystal surface polishing device comprises a rack, a vertical and horizontal transmission mechanism, a crystal clamping and rotatingmechanism and an abrasive belt rotating machining mechanism, the vertical and horizontal transmission mechanism and the crystal clamping and rotating mechanism are fixed to the rack, and the abrasivebelt rotating machining mechanism is fixed to the vertical and horizontal transmission mechanism through a support frame; the crystal clamping and rotating mechanism is used for clamping a to-be-machined crystal and driving the to-be-machined crystal to rotate according to the set speed under the control of a first motor; the vertical and horizontal transmission mechanism is used for controllingthe abrasive belt rotating machining mechanism to move in the horizontal direction and in the vertical direction; and the abrasive belt rotating machining mechanism is used for being close to the to-be-machined crystal under the control of the vertical and horizontal transmission mechanism and rotating under the control of a second motor to polish the surface of the to-be-machined crystal.

Description

technical field [0001] The invention relates to the technical field of semiconductors, in particular to a surface grinding and polishing device for a cadmium zinc telluride crystal. Background technique [0002] During the growth process of CZT (cadmium zinc telluride) crystal, the quartz ampoule is directly used as the crucible for growth, and the internal CdO reacts with the quartz surface to form CdSiO3, resulting in adhesion between the crystal and the quartz surface, increased mechanical stress, and dislocation proliferation. In the cooling stage in the later stage of crystal growth, it will directly lead to the fragmentation of the quartz ampoule. A common solution is to coat a layer of carbon film on the inner wall of the quartz ampoule to solve this problem. The carbon film coating can prevent the reaction, prevent adhesion, reduce contact stress, reduce dislocation, and at the same time block the diffusion of impurity elements into the crystal or melt. However, as...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24B21/02B24B21/18B24B21/20B24B41/06B24B47/12
CPCB24B21/02B24B21/18B24B21/20B24B41/062B24B47/12
Inventor 徐强强李振兴侯晓敏
Owner 11TH RES INST OF CHINA ELECTRONICS TECH GROUP CORP
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