A sliding material hanging device for producing single crystal by Czochralski method

Abstract

The utility model discloses a sliding material hanging device for producing single crystals by the direct pulling method, and specifically relates to the technical field of material taking in single crystal production, including a base for support, a connecting assembly is arranged on the base, and the connecting assembly includes a growth tube arranged on the top of the base for guiding the material, and an elastic stopper detachably connected to the base is arranged at the bottom of the base. The utility model arranges the connecting assembly, and drives the material taking slider to move by displacing the growth rod, the reinforcing protection block and the extension rod. The material is pulled when the material taking slider moves, and when the single crystal contacts the elastic stopper, the elastic stopper is deformed by force, so that the material taking slider can be disengaged from the growth tube, and the conical cross section of the material taking slider is arranged, so that the crystal material can be easily gathered, thereby improving the convenience of material taking.

Description

Technical Field

[0001] The utility model relates to the technical field of single crystal production and material taking, and more specifically, to a sliding material hanging device for producing single crystals by a Czochralski method. Background Art

[0002] A single crystal is a crystal structure. A crystal is an ordered solid composed of atoms, ions or molecules arranged in a certain way. In a polycrystalline material, the grain boundary is the boundary between different grains, and the grain boundary will cause the properties of the crystal to change. Since a single crystal has no grain boundaries, its properties are uniform in all directions.

[0003] Single crystals have many unique properties, such as good optical properties, thermal conductivity and electrical conductivity, etc. Therefore, single crystals are widely used in optical devices, semiconductor devices, magnetic materials, superconducting materials, electronic devices and other fields. The preparation of single crystals is usually achieved by crystal growth methods, such as Czochralski method, evaporation method, solution method, etc.

[0004] Among them, it was found through searching that the utility model patent with patent application number CN201620915837.3 discloses a whole piece of edge skin compound pulling material feeding device for producing single crystal silicon by direct pulling method, including a hanging piece and a connecting rod with a hole in the upper part of the edge skin compound pulling material A, the upper part of the hanging piece is connected to the steel wire rope on the shaft of the single crystal furnace through a pin passing through the hanging piece, and the connecting rod passes through the hole of the edge skin compound pulling material A to hang it on the hanging piece. The utility model of the whole piece of edge skin compound pulling material feeding device for producing single crystal silicon by direct pulling method overcomes the shortcomings of raw material pollution and easy silicon splashing in the existing feeding process;

[0005] When this structure is in use, the multiple pieces of edge skin composite pulled materials produced after slicing the single crystal rod are finished without going through the crushing and cleaning processes. Instead, they are hung end to end and then slowly dropped into the molten silicon in the quartz crucible using the steel wire rope and hanging parts on the axis of the single crystal furnace, thereby avoiding secondary contamination of the crystal pulling raw materials and silicon splashing, thereby improving the crystallization rate and the quality of the single crystal. However, at present, the single crystal needs to be hung manually, which is not easy to disengage during hanging and is not convenient in use. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the utility model provides a sliding material hanging device for producing single crystals by the Czochralski method, aiming to solve the problems raised in the above-mentioned background technology.

[0007] The utility model is implemented in this way. The utility model provides the following technical solutions: a sliding material hanging device for producing single crystals by a Czochralski method, comprising a base for support, wherein a connecting component is arranged on the base;

[0008] The connection assembly comprises a growth cylinder arranged on the top of the base for guiding materials, and an elastic stopper detachably connected to the base is arranged at the bottom of the base;

[0009] A growth rod for taking materials is slidably connected to the middle of the elastic stopper, and a material taking sliding block for taking materials is arranged on the top of the growth rod;

[0010] The vertical cross-sections of the material-retrieving slider and the elastic stopper are both set to be conical, and the material-retrieving slider is set to be hollow, and an extension rod for support is set inside the material-retrieving slider;

[0011] It can be seen that in the above technical solution, the growth rod, the reinforced protection block and the extension rod are displaced, thereby driving the material-taking slider to move. When the material-taking slider moves, the material is pulled, and when the single crystal contacts the elastic stopper, the elastic stopper is deformed by force, so that the material-taking slider can be disengaged from the growth tube, and the conical cross-section setting of the material-taking slider makes it easy to gather the crystal material, thereby improving the convenience of material taking.

[0012] Optionally, in a possible embodiment, one end of the extension rod extends to the growth rod and is detachably connected to the growth rod, a reinforcing protection block for support is provided at one end of the growth rod, horizontal axes for support are provided on both sides of the surface of the base, and an axle pin seat for support is provided on the top of the growth tube, the axle pin seat is detachably connected to the growth tube, a sliding sleeve for limiting is movably connected to the middle part of the reinforcing protection block, and the growth tube is detachably connected to the base.

[0013] Technical effects and advantages of the utility model:

[0014] By setting the connection components, compared with the prior art, the overall design is simple and the structure is reasonable. Through the corresponding coordination of various structures, the single crystal growth starts in the growth rod and the growth tube under appropriate temperature, pressure and time conditions, ensuring the stability of the single crystal during growth.

[0015] The growth rod, the reinforced protection block and the extension rod are displaced, thereby driving the material taking slider to move. When the material taking slider moves, the material is pulled. When the single crystal contacts the elastic stopper, the elastic stopper is deformed by force, so that the material taking slider can be released from the growth tube.

[0016] Furthermore, the tapered cross section of the material taking sliding block makes it easy to gather the crystal materials, thereby improving the convenience of taking the materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the present disclosure, the following briefly introduces the drawings required to be used in some embodiments of the present disclosure. Obviously, the drawings described below are only drawings of some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can also be obtained based on these drawings. In addition, the drawings described below can be regarded as schematic diagrams, and are not limitations on the actual size of the product involved in the embodiments of the present disclosure, the actual process of the method, the actual timing of the signal, etc.

[0018] Figure 1 It is the front view of the overall structure of the utility model.

[0019] Figure 2 It is a sectional view of the overall structure of the utility model.

[0020] Figure 3 It is the front view of the growth tube, base and horizontal axis of the utility model.

[0021] Figure 4 It is a front view of the growth rod, material taking sliding block, elastic stopper and reinforced protection block of the utility model.

[0022] The accompanying drawings are marked as follows: 1. base; 2. growing tube; 3. elastic stopper; 4. growing rod; 5. extension rod; 6. material removal slider; 7. reinforced protection block; 8. horizontal axis; 9. shaft pin seat; 10. sliding sleeve. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] As attached Figure 1-4 The sliding material hanging device for producing single crystal by the Czochralski method shown in the figure drives the material taking slider 6 to move through the connection assembly arranged on the base 1, through the displacement of the growth rod 4, the reinforcement protection block 7 and the extension rod 5. When the material taking slider 6 moves, the material is pulled, and when the single crystal contacts the elastic stopper 3, the elastic stopper 3 is deformed by force, so that the material taking slider 6 can be disengaged from the growth tube 2. In addition, the tapered cross section of the material taking slider 6 is arranged to facilitate the gathering of crystal materials, thereby improving the convenience of material taking. The specific structural arrangement of the assembly is as follows;

[0025] The connection assembly includes a growing cylinder 2 arranged on the top of the base 1 for guiding materials, and an elastic stopper 3 detachably connected to the base 1 is arranged at the bottom of the base 1;

[0026] A growth rod 4 for taking materials is slidably connected to the middle of the elastic stopper 3, and a material taking slider 6 for taking materials is arranged on the top of the growth rod 4;

[0027] The vertical cross-sectional shapes of the material-collecting sliding block 6 and the elastic stopper 3 are both set to be conical, and the material-collecting sliding block 6 is set to be hollow. An extension rod 5 for support is arranged inside the material-collecting sliding block 6, one end of the extension rod 5 extends to the growth rod 4 and is detachably connected to the growth rod 4, and a reinforcing protection block 7 for support is arranged at one end of the growth rod 4. Both sides of the surface of the base 1 are provided with a horizontal axis 8 for support, and the top of the growth cylinder 2 is provided with an axle pin seat 9 for support, and the axle pin seat 9 is detachably connected to the growth cylinder 2. The middle part of the reinforcing protection block 7 is movably connected with a sliding sleeve 10 for limiting, and the growth cylinder 2 is detachably connected to the base 1.

[0028] When using the above structure, the staff installs the device at the designated position, installs the single crystal growth rod prepared in advance on the hanging device, adjusts its height to meet the growth requirements, puts the hanging device with the single crystal growth rod into the molten pool, and starts single crystal growth in the growth rod 4 and the growth tube 2 under appropriate temperature, pressure and time conditions;

[0029] When pulling the material, the growth rod 4, the reinforced protection block 7 and the extension rod 5 are displaced, thereby driving the material taking slider 6 to move. When the material taking slider 6 moves, the material is pulled, and when the single crystal contacts the elastic stopper 3, the elastic stopper 3 is deformed by force, so that the material taking slider 6 can be removed from the growth tube 2;

[0030] Furthermore, the tapered cross section of the material taking sliding block 6 makes it easy to gather the crystal materials, thereby improving the convenience of taking the materials.

[0031] Different from the prior art, the present application discloses a sliding material hanging device for producing single crystals by the direct pulling method, which drives the material picking slider 6 to move by displacing the growth rod 4, the reinforced protection block 7 and the extension rod 5. The material is pulled when the material picking slider 6 is displaced, and when the single crystal contacts the elastic stopper 3, the elastic stopper 3 is deformed by force, so that the material picking slider 6 can be disengaged from the growth tube 2, and the conical cross-section setting of the material picking slider 6 makes it easy to gather the crystal material, thereby improving the convenience of material picking.

[0032] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A sliding material hanging device for producing single crystals by a Czochralski method, comprising a base (1) for supporting, characterized in that: The base (1) is provided with a connection component; The connection assembly comprises a growth cylinder (2) arranged on the top of the base (1) for guiding materials, and the bottom of the base (1) is provided with an elastic stopper (3) detachably connected to the base (1); A growing rod (4) for taking materials is slidably connected to the middle of the elastic stopper (3), and a material taking sliding block (6) for taking materials is arranged at the top of the top of the growing rod (4).

2. The sliding material hanging device for producing single crystal by Czochralski method according to claim 1, characterized in that: The vertical cross-sections of the material taking sliding block (6) and the elastic stopper (3) are both configured to be conical, and the material taking sliding block (6) is configured to be hollow.

3. The sliding material hanging device for producing single crystal by Czochralski method according to claim 1, characterized in that: An extension rod (5) for support is arranged inside the material taking sliding block (6), and one end of the extension rod (5) extends to the growing rod (4) and is detachably connected to the growing rod (4).

4. The sliding material hanging device for producing single crystal by Czochralski method according to claim 1, characterized in that: A reinforcing protection block (7) for support is provided at one end of the growing rod (4), and horizontal axes (8) for support are provided on both sides of the surface of the base (1).

5. The sliding material hanging device for producing single crystal by Czochralski method according to claim 1, characterized in that: A shaft pin seat (9) for support is provided on the top of the growth cylinder (2); the shaft pin seat (9) is detachably connected to the growth cylinder (2).

6. The sliding material hanging device for producing single crystal by Czochralski method according to claim 4, characterized in that: The middle part of the reinforced protection block (7) is movably connected with a sliding sleeve (10) for limiting position, and the growth tube (2) is detachably connected to the base (1).

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