A jig suitable for seed acid washing

Abstract

This utility model relates to the field of seed crystal pickling fixture technology, and in particular to a fixture suitable for seed crystal pickling. It includes a pickling box, with drive chambers on both the left and right sides of the pickling box. Lead screws are connected to the top of each drive chamber, and threaded blocks are sleeved on the outside of each lead screw. A connecting block is provided on one side of each threaded block, and a pickling basket is fixedly connected between the two connecting blocks. Multiple second limiting plates are arranged inside the pickling basket in a rectangular array. Positioning grooves are provided on both the left and right sides of the pickling basket. Trapezoidal tenons are fixedly connected to one end of each of the left and right sides of the pickling basket, with insertion holes inside the trapezoidal tenons. Mounting plates are fixedly connected to the front and rear ends of both the left and right sides of the pickling basket, with mounting holes at the top and bottom ends of the mounting plates. This utility model improves work efficiency through automated pickling, and by utilizing the splicing of double-layered pickling baskets, it achieves high pickling efficiency for multiple seed crystals.

Description

Technical Field

[0001] This utility model relates to the field of seed pickling fixture technology, and in particular to a fixture suitable for seed pickling. Background Technology

[0002] The purpose of seed pickling is to remove contaminants such as organic compounds, metallic impurities, or particulate matter adhering to the wafer surface. These contaminants have a significant impact on subsequent process steps. Metallic impurities can cause PN leakage, shorten minority carrier lifetime, and reduce the breakdown voltage of the gate oxide layer. The adhesion of particulate matter can affect the accuracy of lithography pattern transfer and even cause short circuits in the circuit structure. It is evident that pickling is extremely important in the seed manufacturing process. In the seed pickling process, pickling baskets are used. The baskets are designed with partitions (such as double-row grids, partitions, and placement slots) to fix the seed position, prevent collisions or stacking during pickling, ensure uniform contact of acid with the seed surface, and solve the problem of cleaning dead corners. However, existing seed pickling fixtures are all single-layer baskets, which are not suitable for pickling a small number of seed crystals. They also require manual washing of the seed crystals from top to bottom, which is time-consuming and labor-intensive. Furthermore, they cannot be stacked according to the usage requirements, and require a lot of time to process the pickling process, which reduces the efficiency of subsequent work. Utility Model Content

[0003] To overcome the problem that existing seed pickling fixtures cannot be stacked in multiple layers according to requirements, which greatly reduces the subsequent pickling efficiency and requires manual operation, which is time-consuming and labor-intensive.

[0004] The technical solution of this utility model is as follows: a fixture suitable for seed crystal pickling, comprising a pickling box, drive chambers on both the left and right sides of the pickling box, lead screws connected above the two drive chambers, threaded blocks sleeved on the outside of the two lead screws, connecting blocks on one side of the two threaded blocks, and a pickling basket fixedly connected between the two connecting blocks. Multiple second limiting plates are arranged inside the pickling basket in a rectangular array. Positioning grooves are provided on both the left and right sides of the pickling basket. Trapezoidal tenons are fixedly connected to one end of both the left and right sides of the pickling basket, and insertion holes are provided inside the trapezoidal tenons. Mounting plates are fixedly connected to the front and rear ends of both sides of the basket. Mounting holes are opened at the top and bottom ends of the mounting plates. Mounting side plates are provided on both sides of the pickling basket. Trapezoidal rivet holes are opened on the lower left and right sides of the two mounting side plates. Fixing holes are opened above the trapezoidal rivet holes and located inside the mounting side plates. Fixing grooves are opened inside the fixing holes. There are four fixing grooves in a circular array. The mounting side plates are fixed to the mounting plates by plug-in components. The plug-in components include plug rods. One end of the plug rods is fixedly connected to L-shaped elastic blocks. There are four L-shaped elastic blocks in a circular array. Elastic elements are provided between the four L-shaped elastic blocks.

[0005] Preferably, the drive compartment includes a motor compartment, inside which is a motor body. The output end of the motor body is connected to a lead screw. The motor body drives the lead screw to rotate, and the rotation of the lead screw drives two threaded blocks to engage with the two lead screws and move up and down.

[0006] Preferably, the two connecting blocks are fixed to the two threaded blocks by fastening bolts, and the screw drives the threaded blocks to move up and down. The up and down movement of the two threaded blocks is used to drive the pickling basket to move up and down.

[0007] Preferably, a base plate is fixedly connected between the two mounting side plates, and a first limiting plate is provided above the base plate. The first limiting plate is arranged in a rectangular array of multiple plates.

[0008] Preferably, the pickling basket has drainage holes on both the left and right sides, and there are multiple drainage holes in a rectangular array, with auxiliary holes between the multiple drainage holes.

[0009] Preferably, both mounting side panels are inserted into two positioning slots, and trapezoidal tenons are inserted into trapezoidal rivet holes. The mortise and tenon joint is used to fix the mounting side panels to the pickling basket.

[0010] Preferably, the elastic element includes a spring, a plug is inserted into the mounting hole and connected through the mounting plate, and is also inserted into the fixing hole. Four L-shaped elastic blocks are pressed against its inner wall and locked into four fixing slots for fixing the side plate and the pickling basket.

[0011] The beneficial effects of this utility model are: 1. This fixture, suitable for seed crystal pickling, can increase the number of pickling basket layers by using a trapezoidal tenon and mortise joint to install multiple pickling baskets for pickling multiple seed crystals, thereby improving subsequent work efficiency. 2. This jig, suitable for seed crystal pickling, improves the efficiency of seed crystal pickling by utilizing the vertical displacement through an automated washing structure, saving time and labor. Attached Figure Description

[0012] Figure 1 The diagram shown is a schematic representation of the overall structure of the fixture for seed crystal pickling according to this utility model. Figure 2 The diagram shown is a schematic representation of the overall structure of the seed crystal pickling basket of this utility model. Figure 3 This utility model is shown. Figure 2 A magnified schematic diagram of the three-dimensional structure at point A; Figure 4 This utility model is shown. Figure 2 A magnified schematic diagram of the three-dimensional structure at point B; Figure 5This utility model is shown. Figure 2 A magnified schematic diagram of the structure at point C in the solid model.

[0013] Explanation of reference numerals in the attached drawings: 1. Pickling tank; 2. Motor compartment; 3. Lead screw; 4. Threaded block; 5. Connecting block; 6. Pickling basket; 7. Mounting side plate; 8. Leakage hole; 9. Auxiliary hole; 10. First limiting plate; 11. Trapezoidal tenon; 12. Mounting plate; 13. Mounting hole; 14. Second limiting plate; 15. Fixing groove; 16. Fixing hole; 17. Trapezoidal rivet eye; 18. Insert rod; 19. L-shaped elastic block; 20. Spring. Detailed Implementation

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Please see Figures 1-5 This utility model provides an embodiment: a fixture suitable for seed crystal pickling, including a pickling box 1, with drive chambers on both the left and right sides of the pickling box 1, and lead screws 3 connected to the top of each drive chamber. Threaded blocks 4 are sleeved on the outside of each lead screw 3, and connecting blocks 5 are provided on one side of each threaded block 4. A pickling basket 6 is fixedly connected between the two connecting blocks 5. Drainage holes 8 are provided on both the left and right sides of the pickling basket 6, arranged in a rectangular array. Auxiliary holes 9 are provided between the multiple drainage holes 8. Multiple second limiting plates 14 are provided inside the pickling basket 6, arranged in a rectangular array. Positioning grooves are provided on both the left and right sides of the pickling basket 6. Trapezoidal tenons 11 are fixedly connected to one end of each of the left and right sides of the pickling basket 6, with insertion holes inside the trapezoidal tenons 11. Mounting plates 12 are fixedly connected to the front and rear ends of both the left and right sides of the pickling basket 6. Mounting holes 13 are provided at both the top and bottom ends of the mounting plate 12. Mounting side plates 7 are provided on both the left and right sides of the pickling basket 6. Trapezoidal rivet holes 17 are provided on both the left and right sides of the lower end of the two mounting side plates 7. Fixing holes 16 are provided above the trapezoidal rivet holes 17 and located inside the mounting side plates 7. Fixing grooves 15 are provided inside the fixing holes 16. There are four fixing grooves 15 arranged in a ring. The mounting side plates 7 and the mounting plate 12 are fixed together by a plug-in assembly. The plug-in assembly includes a plug rod 18. One end of the plug rod 18 is fixedly connected to an L-shaped elastic block 19. There are four L-shaped elastic blocks 19 arranged in a ring. Elastic elements are provided between the four L-shaped elastic blocks 19. The structure of the pickling box 1, motor compartment 2, lead screw 3 and pickling basket 6 is the existing technical solution. Here, the applicant will not provide a detailed description of the internal structure and components of the pickling box 1, motor compartment 2, lead screw 3 and pickling basket 6 or their connection relationship.

[0016] The drive chamber includes a motor chamber 2, inside which is a motor body. The output end of the motor body is connected to a lead screw 3. The motor body drives the lead screw 3 to rotate. The rotation of the lead screw 3 drives two threaded blocks 4 to engage with the two lead screws 3 and move up and down. Two connecting blocks 5 are fixed to the two threaded blocks 4 by fastening bolts. The lead screw 3 drives the threaded blocks 4 to move up and down. The up and down movement of the two threaded blocks 4 is used to drive the pickling basket 6 to move up and down. The rotation of the lead screw 3 driven by the motor inside the motor chamber 2 drives the externally engaged threaded blocks 4 to move up and down. At the same time, it also drives the pickling basket 6 connected to one side of the threaded blocks 4 through the connecting block 5 to move up and down in the pickling tank 1. Through automated up and down washing, the efficiency of seed pickling is improved.

[0017] A base plate is fixedly connected between the two mounting side plates 7. A first limiting plate 10 is provided above the base plate. Multiple first limiting plates 10 are arranged in a rectangular array. Both mounting side plates 7 are inserted into two positioning grooves. Trapezoidal tenons 11 are inserted into trapezoidal rivet holes 17. The mortise and tenon joint is used to fix the mounting side plates 7 to the pickling basket 6. The elastic element includes a spring 20. The insertion rod 18 is inserted into the mounting hole 13 and passes through the mounting plate 12. It is also inserted into the fixing hole 16. Four L-shaped elastic blocks 19 are pressed against its inner wall and are inserted into four fixing grooves 15 for fixing the mounting side plates 7 to the pickling basket 6. The installation is achieved by aligning the trapezoidal rivet holes 17 at the lower end of the two mounting side plates 7 with the trapezoidal tenons 11 and inserting them into the mounting plate 12. The side plates 7 are fixed by the mortise and tenon joint. The insert rod 18 is inserted into the mounting hole 13 inside the mounting plate 12 and passes through it. At the same time, the four L-shaped elastic blocks 19 at one end of the insert rod 18 are also inserted into the fixing hole 16 and pressed against the inner wall. The four L-shaped elastic blocks 19 are compressed and locked into the four fixing grooves 15 for reinforcement. The double-layer pickling basket 6 can be used to pickle multiple crystals, saving time and effort and improving work efficiency.

[0018] During operation, the trapezoidal rivet holes 17 at the lower ends of the two mounting side plates 7 are aligned with the trapezoidal tenons 11 and inserted. The mortise and tenon joint is used to fix the mounting side plates 7. The insert rod 18 is inserted into the mounting hole 13 inside the mounting plate 12, and the four L-shaped elastic blocks 19 are pressed against its inner wall, which drives the spring 20 to be compressed and inserted into the fixing hole 16. Finally, it is locked into the four fixing slots 15 for reinforcement. The double-layer pickling basket 6 is used to pickle multiple crystal seeds. The motor inside the motor chamber 2 drives the lead screw 3 to rotate. While the lead screw 3 rotates, it drives the externally meshed threaded block 4 to move up and down. At the same time, it drives the pickling basket 6 connected to the threaded block 4 on one side through the connecting block 5 to move up and down in the pickling box 1. The efficiency of crystal seed pickling is improved through automated up and down washing.

[0019] Through the above steps, by increasing the number of layers of the pickling basket 6 and installing multiple layers of pickling basket 6 through trapezoidal tenon and mortise joints, it is possible to pickle multiple seed crystals, thereby improving the efficiency of subsequent work. This solves the problem that the existing seed crystal pickling fixtures cannot be stacked in multiple layers as required, which greatly reduces the efficiency of subsequent pickling and requires manual operation, which is time-consuming and labor-intensive.

Claims

1. A jig suitable for seed acid washing, comprising an acid washing tank (1), characterized in that: The pickling tank (1) is provided with drive chambers on both the left and right sides. A lead screw (3) is connected to the top of each drive chamber. A threaded block (4) is sleeved on the outside of each lead screw (3). A connecting block (5) is provided on one side of each threaded block (4). A pickling basket (6) is fixedly connected between the two connecting blocks (5). Multiple second limiting plates (14) are provided inside the pickling basket (6). Multiple second limiting plates (14) are arranged in a rectangular array. Positioning grooves are provided on both the left and right sides of the pickling basket (6). A trapezoidal tenon (11) is fixedly connected to one end of each of the left and right sides of the pickling basket (6). An insertion hole is provided inside the trapezoidal tenon (11). Mounting plates (12) are fixedly connected to the front and rear ends of both the left and right sides of the pickling basket (6). 12) The upper and lower ends of the interior are provided with mounting holes (13). The left and right sides of the pickling basket (6) are provided with mounting side plates (7). The lower left and right sides of the two mounting side plates (7) are provided with trapezoidal rivet holes (17). The upper part of the trapezoidal rivet holes (17) is provided with fixing holes (16) located inside the mounting side plates (7). The fixing holes (16) are provided with fixing grooves (15). There are four fixing grooves (15) in a ring array. The mounting side plates (7) and the mounting plate (12) are fixed together by a plug-in assembly. The plug-in assembly includes a plug rod (18). One end of the plug rod (18) is fixedly connected to an L-shaped elastic block (19). There are four L-shaped elastic blocks (19) in a ring array. There are elastic elements between the four L-shaped elastic blocks (19).

2. The jig for seed acid washing according to claim 1, wherein: The drive compartment includes a motor compartment (2), and a motor body is installed inside the motor compartment (2). The output end of the motor body is connected to a lead screw (3). The motor body drives the lead screw (3) to rotate. The rotation of the lead screw (3) drives two threaded blocks (4) to mesh with the two lead screws (3) and move up and down.

3. The jig for seed acid washing according to claim 2, wherein: The two connecting blocks (5) are fixed to the two threaded blocks (4) by fastening bolts. The screw (3) drives the threaded blocks (4) to move up and down. The two threaded blocks (4) move up and down to drive the pickling basket (6) to move up and down.

4. The jig for seed acid washing according to claim 1, wherein: A base plate is fixedly connected between the two mounting side plates (7), and a first limiting plate (10) is provided above the base plate. The first limiting plate (10) is arranged in a rectangular array of multiple plates.

5. The jig for seed acid washing according to claim 1, wherein: The pickling basket (6) has drainage holes (8) on both the left and right sides. There are multiple drainage holes (8) in a rectangular array, and auxiliary holes (9) are provided between the multiple drainage holes (8).

6. The jig for seed acid washing according to claim 1, wherein: Both mounting side plates (7) are inserted into the two positioning slots, and the trapezoidal tenon (11) is inserted into the trapezoidal rivet (17). The tenon and mortise are used to fix the mounting side plates (7) and the pickling basket (6).

7. The jig for seed acid washing according to claim 1, wherein: The elastic element includes a spring (20), a plug (18) inserted into the mounting hole (13) and connected through the mounting plate (12), and inserted into the fixing hole (16). Four L-shaped elastic blocks (19) are pressed against its inner wall and locked into four fixing slots (15) for the fixed installation of the mounting side plate (7) and the pickling basket (6).

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