Mono-like seed crystal laying device and equipment

Abstract

An embodiment of the invention discloses a mono-like seed crystal laying device and system. The mono-like seed crystal laying device comprises a controller, a lifting support, a vacuum sucker, an airpump and an air pipeline, wherein the control end of the controller is connected with the drive end of the air pump and the drive end of the lifting support; the output end of the air pump is connected with the input end of the air pipeline; the output end of the air pipeline is connected with an air port of the vacuum sucker; the air port end of the vacuum sucker is connected with the movable endof the lifting support; multiple sucker areas are formed at the bottom of the vacuum sucker, each sucker area corresponds to a seed crystal, and at least one sucker hole is formed in each sucker area; the controller is used for controlling the lifting support to drive the vacuum sucker to lift or drop, so that seed crystal arrays laid in advance are transferred to the bottom of a crucible by thevacuum sucker, and the seed crystal arrays are laid by multiple seed crystals in a seamless manner. According to the embodiment of the invention, the collision probability of corners of the seed crystals is reduced in the seed crystal laying process, the laying quality and efficiency are higher, and the seamless effect is better.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of quasi-single crystals, and in particular, relate to a laying device and equipment for quasi-single crystal seed crystals. Background technique [0002] With the development of science and technology, the quasi-single crystal technology is more and more widely used in the polycrystalline ingot industry, and the laying of seed crystals is an important link in the quasi-single crystal technology. In order to avoid polycrystals appearing between two adjacent seed crystals during crystal growth, it is necessary to achieve seamless and flattening between the seed crystals when laying the seed crystals, and try to avoid cracking of the corners caused by the bumping of the seed crystals. Minimize the peeling off of the silicon nitride powder coating caused by the movement and friction of the seed crystal block at the bottom of the crucible. [0003] At present, the seed crystal laying schem...

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Problems solved by technology

[0003] At present, the seed crystal laying scheme in the existing single crystal technology is manually laying the seed crystals one by one on the bottom of the crucible one by one. When placing the seed crystal on the surface of the crucible, due to the large height and width , so that the labor intensity of artificially placing the seed crystal is greater, thereby increasing the collision probability of the corner of the seed crystal, and when laying manually, the gap between the seed crystal placed at the bottom of the crucible and its adjacent seed crystal is larger , it is necessary to move the seed crystal until it is close to the adjacent seed crystal, but the contact friction between the seed crystal and the bottom surface of the crucible is easy to damage the silicon nitride layer on the bottom surface of the crucible during the moving process, and the process of moving the seed crystal will make both The accumulation of silicon nitride powder is formed between the two seed crystals, resulting in a certain gap between the two seed crystals, making it difficult to achieve seamless

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