Improved fixture for hall sample preparation

Abstract

This utility model provides an improved fixture for Hall sample preparation, belonging to the field of Hall sample preparation technology. It includes: a first component comprising a support holder with a groove at the top, a handle on one side of the bottom, and a support base slidably connected to the handle on the other side of the bottom; a limiting plate positioned at the top of the support base away from the handle, located on the top of the groove; and a second component comprising several arc-shaped templates for assisting in defining the isolation zone and a disk for assisting in placing indium spheres, the disk having several recesses matching the diameter of the indium spheres. This utility model reduces operational difficulty: it eliminates the need for ruler comparison, and the arc-shaped templates ensure the isolation zone is square and closed; it improves repeatability: the variability in sample preparation is reduced, as both the sample and templates are uniquely limited by the grooves, resulting in batch-to-batch differences of <0.1mm; and it enhances safety: it reduces safety hazards, as the sample is completely surrounded by the first component, eliminating the risk of falling during movement and heating.

Description

Technical Field

[0001] This utility model provides an improved fixture for Hall sample preparation, belonging to the field of Hall sample preparation technology. Background Technology

[0002] Current Hall sample preparation requires manually marking a 1cm×1cm isolation area on the sample surface using a ruler and diamond pen within the measurement area. Then, using the electrostatic effect on a transparent pressure plate under a magnifying glass, indium spheres adsorbed on the plate are placed at the four corners of the marked square isolation area and flattened, without exceeding the isolation area. Finally, the sample is transferred to a 170℃ heating platform using tweezers.

[0003] The process has the following drawbacks: the isolation zone lines are easily drawn crookedly or not fully enclosed; the indium sphere easily exceeds the boundary; and the operation is difficult. The variability in sample preparation is large, with significant differences between different operators and batches, resulting in low reproducibility. The sample is prone to falling and breaking when moved with tweezers, posing a safety hazard. Therefore, this invention provides an improved fixture for Hall effect sample preparation. Utility Model Content

[0004] The technical problems solved by this utility model are: the lines in the isolation area are easy to be drawn crookedly, making the operation difficult; the variability of repeated sample preparation is large; and there are potential safety hazards.

[0005] To solve the technical problem, the technical solution provided by this utility model is: an improved fixture for Hall sample preparation, comprising:

[0006] A first component for carrying and moving a Hall sample includes a support holder, the top of which has a groove for receiving the Hall sample, a handle on one side of the bottom of the support holder, a support seat slidably connected to the end of the handle on the other side of the bottom of the support holder, and a limiting plate placed on the top of the groove at the end of the top of the support seat away from the handle.

[0007] The second component includes several arc-shaped templates for assisting in defining the isolation area and a disk for assisting in placing the indium sphere, wherein the disk is provided with several recessed holes matching the diameter of the indium sphere.

[0008] Furthermore, the handle includes a handle rod, a first connecting ear fixedly disposed on one side of the top of the handle rod and fitting against the side wall of the support bracket, and a second connecting ear fixedly disposed at the end of the handle rod and fitting against the other side wall of the support bracket. The bottom of the support bracket is provided with an installation groove that matches the handle rod. The first connecting ear and the second connecting ear are fixedly connected to the support bracket by screws. Both the first connecting ear and the second connecting ear are provided with through holes that match the screws.

[0009] Furthermore, the side wall of the support base is provided with a sliding groove that matches the second connecting ear.

[0010] Furthermore, the first component also includes a C-shaped retaining plate for binding the support bracket and the support base together, wherein the lower part of the side wall of both the support bracket and the support base is provided with an L-shaped retaining groove that matches half of the C-shaped retaining plate.

[0011] Furthermore, the support bracket, handle, support base, limiting plate, and C-shaped plate are all made of glass fiber reinforced composite material.

[0012] Furthermore, the support base is fixedly connected to the limiting plate by bolts, and the top of the limiting plate away from the handle has symmetrical mounting holes on both sides that match the bolts.

[0013] Furthermore, the groove includes an integrally formed arc groove and an opening groove. The arc-shaped template has the same diameter as the disc, and the arc groove disc has the same diameter. Both the disc and the arc-shaped template are made of acrylic material.

[0014] The beneficial effects of this utility model are:

[0015] This invention reduces operational difficulty by eliminating the need for ruler comparison and ensuring the isolation area is square and sealed. It also improves repeatability by reducing the variability in sample preparation, as both the sample and the template are uniquely positioned by the groove, resulting in batch-to-batch differences of less than 0.1 mm. Furthermore, it enhances safety by reducing safety hazards, as the sample is completely surrounded by the first component, eliminating the risk of falling during movement and heating. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the improved fixture for preparing Hall effect samples according to this invention. Figure 1 .

[0017] Figure 2 This is a schematic diagram of the improved fixture for preparing Hall effect samples according to this invention. Figure 2 .

[0018] Figure 3 This is a schematic diagram of the improved fixture for preparing Hall effect samples according to this invention. Figure 3 .

[0019] Figure 4 This is a schematic diagram of the improved fixture for preparing Hall effect samples according to this invention. Figure 4 .

[0020] Figure 5 A planar schematic diagram of the improved fixture for preparing Hall effect samples according to this utility model. Figure 1 .

[0021] Figure 6 A planar schematic diagram of the improved fixture for preparing Hall effect samples according to this utility model. Figure 2 .

[0022] 1. Support bracket; 2. Handle; 3. Support base; 4. Limiting plate; 5. C-shaped plate; 6. Arc-shaped template; 7. Recessed hole; 8. Mounting hole; 9. L-shaped slot; 10. Slide groove; 11. Disc; 12. Groove; 13. Connecting ear one; 14. Connecting ear two; 15. Mounting groove. Detailed Implementation

[0023] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom mentioned or possibly mentioned in this specification are defined relative to their structure and are relative concepts. Therefore, they may vary depending on their location and usage; thus, these or other directional terms should not be interpreted as restrictive terms.

[0024] The singular forms “a,” “the,” and “the” used in this specification are intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes one or more of the associated listed items, any or all possible combinations thereof.

[0025] To make the technical problems to be solved, the technical solutions, and the beneficial effects of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0026] According to the appendix Figure 1-4 As shown: This utility model provides an improved fixture for Hall sample preparation, comprising: a first component for carrying and moving the Hall sample, including a support holder 1, the top of which has a groove 12 for accommodating the Hall sample, the groove depth being 0.5-1.0 mm; a handle 2 on one side of the bottom of the support holder 1; and a support seat 3 slidably connected to the end of the handle 2 on the other side of the bottom of the support holder 1. A limiting plate 4, positioned at the top of the groove 12, is located at the top end of the support seat 3 away from the handle 2. The first component also includes a C-shaped clamping plate 5 for confining the support holder 1 and the support seat 3 together. 1. The lower part of the side wall of the support base 3 is provided with an L-shaped groove 9 that matches half of the C-shaped clamping plate 5. The support bracket 1, handle 2, support base 3, limiting clamping plate 4, and C-shaped clamping plate 5 are all made of glass fiber reinforced composite material. Specifically, the glass transition temperature of the glass fiber reinforced composite material is ≥180℃, which can be directly contacted on the 170℃ heating platform. The support bracket 1 and handle 2 are used together to form a tray with screws, which contacts the surface of the heating platform at a heating temperature of 170℃ to assist in placing the sample. The limiting clamping plate 4 is used to limit the opening area of ​​the groove 12 to prevent the sample from shifting during operation.

[0027] As per the instruction manual Figure 5 , 6As shown: The second component includes several arc-shaped templates 6 for assisting in defining the isolation area and a disc 11 for assisting in placing the indium ball. The disc 11 has several recessed holes 7 that match the diameter of the indium ball, with a diameter of 0.3-0.8mm. The groove 12 includes an integrally formed arc groove and an open groove. The arc-shaped templates 6 have the same diameter as the disc 11, and the diameter of the arc groove disc 11 is the same. Both the disc 11 and the arc-shaped templates 6 are made of acrylic material, which has the advantages of high transparency, good processing accuracy, and resistance to deformation, making it easy to operate, observe, and accurately position. Specifically, by using several arc-shaped templates 6 to be placed in the groove 12, the isolation area is defined, and the disc 11 can be used to place the indium ball.

[0028] As per the instruction manual Figure 3 , 4 As shown: The handle 2 includes a handle rod, a connecting ear 13 fixedly disposed on one side of the top of the handle rod and attached to the side wall of the support bracket 1, and a connecting ear 24 fixedly disposed at the end of the handle rod and attached to the other side wall of the support bracket 1. The bottom of the support bracket 1 is provided with a mounting groove 15 that matches the handle rod. The connecting ear 13 and the connecting ear 24 are fixedly connected to the support bracket 1 by screws. Both the connecting ear 13 and the connecting ear 24 are provided with through holes that match the screws, for fixing the handle 2 to the support bracket 1. The side wall of the support base 3 is provided with a sliding groove 10 that matches the connecting ear 24, which serves to limit the position of the support base 3. The support base 3 is fixedly connected to the limiting plate 4 by bolts. The top of the limiting plate 4 away from the handle 2 is provided with symmetrical mounting holes 8 that match the bolts on both sides, so that the limiting plate 4 can be fixed to the top of the support base 3 by bolts.

[0029] The principle and operation process of this utility model:

[0030] Place the Hall sample into the groove 12 of the support holder 1;

[0031] Push handle 2 to move the sample to the operating position;

[0032] Several curved templates 6 are placed into the groove 12 to help define the isolation area;

[0033] Remove the arc-shaped template, insert the disk 11, pick up the indium ball and place it precisely on the sample through the concave hole 7 of the disk 11. After light pressure, the indium ball will adhere to the four corners of the sample in the isolation area.

[0034] Remove disk 11, move the first component containing the sample to the 170℃ heating platform, and heat for 10 minutes to complete the preparation.

[0035] This invention reduces operational difficulty by eliminating the need for ruler comparison and ensuring the square and sealed isolation area with the arc-shaped template 6. It also improves repeatability by reducing the variability in sample preparation, as both the sample and template are uniquely positioned by the groove, resulting in batch-to-batch differences of <0.1mm. Furthermore, it enhances safety by reducing safety hazards, as the sample is completely surrounded by the first component, eliminating the risk of falling during movement and heating.

[0036] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. An improvement fixture for Hall sample preparation, characterized in that: include: The first component for carrying and moving the Hall sample includes a support holder (1), the top of which is provided with a groove (12) for accommodating the Hall sample, a handle (2) on one side of the bottom of the support holder (1), and a support seat (3) slidably connected to the end of the handle (2) on the other side of the bottom of the support holder (1). A limiting plate (4) is provided at the top of the support seat (3) away from the handle (2). The second component includes several arc-shaped templates (6) for assisting in defining the isolation area and a disk (11) for assisting in placing the indium ball. The disk (11) is provided with several recesses (7) that match the diameter of the indium ball.

2. The improved fixture for Hall sample preparation according to claim 1, characterized in that: The handle (2) includes a handle rod, a first connecting ear (13) fixedly disposed on one side of the top of the handle rod and attached to the side wall of the support bracket (1), and a second connecting ear (14) fixedly disposed at the end of the handle rod and attached to the other side wall of the support bracket (1). The support bracket (1) has a mounting groove (15) at the bottom that matches the handle rod. The first connecting ear (13) and the second connecting ear (14) are fixedly connected to the support bracket (1) by screws. The first connecting ear (13) and the second connecting ear (14) are both provided with through holes that match the screws.

3. The improved fixture for Hall sample preparation according to claim 2, characterized in that: The side wall of the support base (3) is provided with a groove (10) that matches the connecting ear (14).

4. The improved fixture for Hall sample preparation according to claim 1, characterized in that: The first component also includes a C-shaped card plate (5) for binding the support bracket (1) and the support base (3) together. The lower part of the side wall of the support bracket (1) and the support base (3) are provided with an L-shaped slot (9) that matches half of the C-shaped card plate (5).

5. The improved fixture for Hall sample preparation according to claim 4, characterized in that: The support bracket (1), handle (2), support base (3), limiting plate (4), and C-shaped plate (5) are all made of glass fiber reinforced composite material.

6. The improved fixture for Hall sample preparation according to claim 1, characterized in that: The support base (3) is fixedly connected to the limiting plate (4) by bolts. The limiting plate (4) has symmetrical mounting holes (8) on both sides of the end away from the handle (2) at the top, which match the bolts.

7. The improved fixture for Hall sample preparation according to claim 1, characterized in that: The groove (12) includes an integrally formed arc groove and an opening groove. The arc template (6) has the same diameter as the disc (11). The arc groove disc (11) has the same diameter. Both the disc (11) and the arc template (6) are made of acrylic material.

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