An integrated circuit substrate soldering jig

Abstract

The utility model relates to a kind of integrated circuit substrate welding jigs, involve jig technical field, including elastic clamping part, the elastic clamping part is equipped with the clamping mouth for the end of shell to and fro, and the one end of the elastic clamping part is fixedly connected with connecting part, the connecting part is vertically arranged and upper end is fixedly connected in the elastic clamping part, lower end is fixedly connected with positioning part, the positioning part is used for abutting to the inner wall of shell to the side of the elastic clamping part, and the other side, which is away from the elastic clamping part, is used for extruding substrate. The utility model can improve the welding positioning accuracy of horizontal substrate in shell, avoid the problem that substrate appears displacement caused by vacuum airflow in welding process, improve production quality.

Description

Technical Field

[0001] This utility model relates to the field of fixture technology, and in particular to an integrated circuit substrate welding fixture. Background Technology

[0002] An integrated circuit substrate is a carrier used to mount and support integrated circuit chips. It not only provides mechanical support, but also leads the electrical signals of the chip to external circuits and provides heat dissipation when necessary.

[0003] Some circuit boards need to be soldered into an open-top housing. The soldering process between the circuit board and the housing places strict requirements on the board's position: the board cannot contact the inner wall of the housing to prevent short circuits or board cracking. Furthermore, the soldering process (such as eutectic bonding, vacuum phase bonding, or vacuum reflow soldering) involves a vacuum process. The airflow generated by the vacuum can cause the board to shift, thus requiring precise positioning during soldering. While some products can be positioned using the housing leads and through-holes on the board, some housings have horizontally designed leads, and the distance between the board and the housing wall is very small, sometimes only 0.2-0.3 micrometers, making the same method of board positioning impossible.

[0004] Regarding the issue of how to weld horizontal substrates, the existing technology mainly uses the following two methods for positioning.

[0005] 1. Manual hot plate welding: Welding is performed on a heated platform in the air. There is no vacuum process, and the position of the substrate can be adjusted in real time by manually inserting a wooden stick into the gap between the end of the substrate and the shell. However, this positioning welding method is inefficient and has a high weld void rate, which affects the welding quality.

[0006] 2. Magnet positioning: When using automated welding processes, magnets are used to press the substrate down, relying on the magnetic attraction between the magnet and the outer shell to resist airflow; however, it is difficult to find spare space to place magnets on highly integrated substrates, and the magnetic components on the substrate may be attracted by the magnets and shift, affecting the quality of the finished product. Utility Model Content

[0007] This invention provides an integrated circuit substrate welding fixture, which can improve the welding positioning accuracy of horizontal substrates inside the housing, avoid the problem of substrate displacement caused by vacuum airflow during the welding process, and improve production quality.

[0008] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: An integrated circuit substrate welding fixture includes an elastic clamping part with a clamping opening for the end of a housing to enter and exit. One end of the elastic clamping part is fixedly connected to a connecting part. The connecting part is vertically arranged and its upper end is fixedly connected to the elastic clamping part, while its lower end is fixedly connected to a positioning part. The side of the positioning part facing the elastic clamping part is used to abut against the inner wall of the housing, and its other side away from the elastic clamping part is used to press the substrate.

[0009] The beneficial effects of this utility model are as follows: In use, the positioning part extends into the gap between the inner wall of the outer shell and the substrate. At the same time, the two sides of the positioning part abut against the inner wall of the outer shell and the substrate respectively. Multiple clamps are installed in this way at intervals and circumferentially, so that each positioning part presses the end of the substrate, thereby completing the positioning and installation of the substrate. This ensures that each end side of the substrate forms a gap with the inner wall of the outer shell, preventing short circuits or substrate cracking. Compared with the existing technology of positioning by manual wooden sticks and magnets, this positioning method improves the welding positioning accuracy of the horizontal substrate inside the outer shell, avoids the problem of substrate displacement caused by vacuum airflow during welding, improves production quality, and is suitable for mass production.

[0010] Based on the above technical solution, the present invention can be further improved as follows.

[0011] Furthermore, an inclined positioning surface is provided on the other side of the positioning part, and the thickness of the positioning part gradually increases from its lower end to its upper end.

[0012] Furthermore, the positioning part includes at least two thermal expansion layers whose ends are fixedly connected to the connecting part. Each thermal expansion layer is stacked and fixedly connected in sequence along the thickness direction of the connecting part, and the thermal expansion coefficient decreases in sequence. The thermal expansion layer with the smallest thermal expansion coefficient is used to extrude the substrate.

[0013] Furthermore, the connecting part has an overall straight plate-like structure.

[0014] Furthermore, the connecting part includes an upper adapter plate fixedly connected to one end of the elastic clamping part, a shrink plate fixedly connected to the lower end of the upper adapter plate, and a lower adapter plate fixedly connected to the lower end of the shrink plate. The positioning part is fixedly connected to the lower end of the lower adapter plate, and the shrink plate is a force-bearing telescopic plate structure.

[0015] Furthermore, the thickness of the elastic clamping part connected to one end of the connecting part is greater than the thickness of the connecting part.

[0016] Furthermore, the elastic clamping part includes a fixing plate fixedly connected to the connecting part at one end and a first arc-shaped plate fixedly connected to the fixing plate at the other end. The first arc-shaped plate is C-shaped and its other end is bent toward the first arc-shaped plate. The clamping opening is formed between the other ends of the fixing plate and the first arc-shaped plate.

[0017] Furthermore, the elastic clamping part also includes a second arc-shaped plate in the shape of a "C", one end of the second arc-shaped plate is fixedly connected to the other end of the first arc-shaped plate, and the other end of the second arc-shaped plate is bent away from the fixed plate.

[0018] Furthermore, the elastic clamping part also includes a force-applying plate, one end of which is fixedly connected to the other end of the second arc-shaped plate.

[0019] Furthermore, the fixing plate, the connecting part, and the positioning part are located on the same plane on the side closest to the first arc-shaped plate. Attached Figure Description

[0020] Figure 1 This is a diagram showing the usage state of the clamp of this utility model; Figure 2 For the present utility model Figure 1 Enlarged view of section A in the middle; Figure 3 This is a structural diagram of the clamp in Embodiment 1 of this utility model; Figure 4 This is a structural diagram of the clamp in Embodiment 2 of this utility model, showing the positioning part in its natural state; Figure 5 This is a structural diagram of the clamp in Embodiment 2 of this utility model, showing the positioning part in a state of thermal expansion; Figure 6 This is a structural diagram of the clamp in Embodiment 3 of this utility model; Figure 7 This is a structural diagram of the clamp in Embodiment 4 of this utility model.

[0021] The attached diagram lists the components represented by each number as follows: 1. Outer shell; 2. Substrate; 3. Elastic clamping part; 31. Fixing plate; 32. First arc-shaped plate; 33. Second arc-shaped plate; 34. Force-applying plate; 4. Clamping port; 5. Connecting part; 51. Upper adapter plate; 52. Shrink plate; 53. Lower adapter plate; 6. Positioning part; 61. Positioning surface; 62. Thermal expansion layer. Detailed Implementation

[0022] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0023] like Figures 1-7 As a basic technical solution, this utility model provides an integrated circuit substrate welding fixture, including an elastic clamping part 3. The elastic clamping part 3 has a clamping port 4 for the end of the outer shell 1 to enter and exit. One end of the elastic clamping part 3 is fixedly connected to a connecting part 5. The connecting part 5 is vertically arranged and its upper end is fixedly connected to the elastic clamping part 3. Its lower end is fixedly connected to a positioning part 6. The side of the positioning part 6 facing the elastic clamping part 3 is used to abut against the inner wall of the outer shell 1, and its other side away from the elastic clamping part 3 is used to squeeze the substrate 2.

[0024] In use, the elastic clamping part 3 is held by hand and the connecting part 5 is inserted downward into the outer shell 1. The end of the outer shell 1 enters the clamping port 4. The elastic clamping part 3 clamps the end of the outer shell 1 to achieve stable installation of the clamp. The positioning part 6 extends into the gap between the inner wall of the outer shell 1 and the substrate 2. At the same time, the two sides of the positioning part 6 abut against the inner wall of the outer shell 1 and the substrate 2 respectively. Multiple clamps are installed in this way at intervals and circumferentially, so that each positioning part 6 presses the end of the substrate 2, thereby completing the positioning and installation of the substrate 2. This makes each end side of the substrate 2 form a gap with the inner wall of the outer shell 1 to prevent short circuits or cracking of the substrate 2. Compared with the existing technology of positioning by manual wooden sticks and magnets, this positioning method improves the welding positioning accuracy of the horizontal substrate 2 inside the outer shell 1, avoids the problem of substrate 2 shifting due to vacuum airflow during welding, improves production quality, and is suitable for mass production.

[0025] After welding and fixing the substrate 2, force is applied to the elastic clamping part 3, and the clamp can be pulled out for secondary use. The clamp does not occupy the space of the substrate 2 during use, is not easy to tip over, and is quick to assemble and disassemble, ensuring production efficiency.

[0026] This fixture can be used for housings and substrates of various sizes to achieve precise positioning of gaps of different widths.

[0027] It should be noted that the specific dimensions of the elastic clamping part 3, the connecting part 5, and the positioning part 6 are conventional choices in the art. As a person skilled in the art, a fixture of the required dimensions can be formulated according to specific needs.

[0028] The elastic clamping part 3 can deform when subjected to force and return to its original state when not subjected to force. The elastic clamping part 3 can be made of spring steel, rubber or other shape memory alloys.

[0029] like Figure 1 and Figure 2In this embodiment, the thickness of the elastic clamping part 3 connected to one end of the connecting part 5 is greater than the thickness of the connecting part 5. This is to ensure that the clamp does not deform when clamping the outer shell 1, and to ensure the clamping stability of the elastic clamping part 3.

[0030] The elastic clamping part 3 includes a fixing plate 31 fixedly connected to the connecting part 5 at one end and a first arc-shaped plate 32 fixedly connected to the fixing plate 31 at one end. The first arc-shaped plate 32 is "C" shaped and the other end is bent toward the first arc-shaped plate 32. A clamping opening 4 is formed between the other ends of the fixing plate 31 and the first arc-shaped plate 32.

[0031] In use, the elastic clamping part 3 is held by hand and the connecting part 5 is inserted downward into the outer shell 1. The first arc plate 32 undergoes adaptive elastic deformation, so that the end of the outer shell 1 enters the clamping port 4. The fixing plate 31 and the first arc plate 32 are clamped on both sides of the end of the outer shell 1 to achieve stable installation of the clamp.

[0032] The elastic clamping part 3 also includes a second arc-shaped plate 33 in the shape of a "C". One end of the second arc-shaped plate 33 is fixedly connected to the other end of the first arc-shaped plate 32, and the other end of the second arc-shaped plate 33 is bent away from the fixed plate 31.

[0033] When the elastic clamping part 3 is clamped to the end of the outer shell 1, the bent second arc plate 33 can guide the insertion clamping port 4 at the end of the outer shell 1, so that the elastic clamping part 3 can be smoothly clamped to the outer shell 1.

[0034] The elastic clamping part 3 also includes a force-applying plate 34, one end of which is fixedly connected to the other end of the second arc-shaped plate 33. This allows the force-applying plate 34 to be held in hand to apply force to the clamp, thus completing the assembly and disassembly of the clamp.

[0035] Furthermore, based on the above embodiments, the fixing plate 31, the connecting part 5, and the positioning part 6 are located on the same plane on the side closest to the first arc-shaped plate 32.

[0036] When the clamp is held at the end of the housing 1, and the fixing plate 31, the connecting part 5 and the positioning part 6 are all inserted into the housing 1, one side of the fixing plate 31, the connecting part 5 and the positioning part 6 can abut against the inner wall of the housing 1, and the inner wall of the housing 1 forms support for the clamp to ensure the clamping stability.

[0037] Example 1 like Figure 2 and Figure 3 Based on the aforementioned basic technical solution, the connecting part 5 has an overall straight plate structure. This allows for a stable connection between the elastic clamping part 3 and the positioning part 6.

[0038] In this embodiment 1, an inclined positioning surface 61 is provided on the other side of the positioning part 6, and the thickness of the positioning part 6 gradually increases from its lower end to its upper end.

[0039] When the positioning part 6 extends into the gap between the inner wall of the outer shell 1 and the substrate 2, the positioning surface 61 abuts against the end of the substrate 2. As the clamps are gradually inserted, the positioning surface 61 gradually increases the squeezing force on the substrate 2, thereby achieving precise positioning of the substrate 2 under the joint positioning of multiple clamps.

[0040] In this embodiment, both the connecting part 5 and the positioning part 6 are made of a solder resist material, such as stainless steel, aluminum or nickel. After oxidation treatment, they have a good solder resist effect, ensuring that they can be easily removed after welding.

[0041] It should be noted that in this embodiment 1, the thickness of the upper ends of the connecting part 5 and the positioning part 6 is greater than the predetermined gap between the outer shell 1 and the substrate 2, and the lower end of the positioning part 6 has the smallest thickness and its size is smaller than the predetermined gap between the outer shell 1 and the substrate 2.

[0042] Example 2 like Figure 4 and Figure 5 Based on the aforementioned basic technical solution, the connecting part 5 has an overall straight plate structure. This allows for a stable connection between the elastic clamping part 3 and the positioning part 6.

[0043] In this embodiment 2, the positioning part 6 includes at least two thermal expansion layers 62 whose ends are fixedly connected to the connecting part 5. Each thermal expansion layer 62 is stacked and fixedly connected in sequence along the thickness direction of the connecting part 5, and the thermal expansion coefficient decreases in sequence. The thermal expansion layer 62 with the smallest thermal expansion coefficient is used to extrude the substrate 2.

[0044] When the positioning part 6 extends into the gap between the inner wall of the outer shell 1 and the substrate 2, the thermal expansion layer 62 with the smallest coefficient of thermal expansion abuts against the end of the substrate 2. The welding position is located at the adjacent position of the fixture. During the welding process, each thermal expansion layer 62 expands due to heat. In order to release the internal stress generated by this uneven expansion, each thermal expansion layer 62 bends toward the thermal expansion layer 62 with the smallest coefficient of thermal expansion, and squeezes the substrate 2, thereby further achieving fine positioning.

[0045] It should be noted that in this embodiment 2, before welding, each positioning part 6 is evenly distributed circumferentially in the gap between the substrate 2 and the outer shell 1. Some positioning parts 6 do not completely fill the gap. At this time, the substrate 2 can move slightly. When the substrate 2 placed in the reflow oven is welded to the outer shell 1, the reflow oven heats up and melts and welds the solder balls at each solder point at the same time. The thermal expansion layers 62 of each positioning part 6 at the corresponding position are heated and expanded at the same time, pushing the substrate 2 to move. Under the joint action of other positioning parts 6, the positioning of the substrate 2 is achieved.

[0046] The number of thermal expansion layers 62 can be two, three, four, or five. The figure only shows two layers. The two thermal expansion layers 62 can be made of a combination of "metal-ceramic" or "polymer-metal" materials, such as brass-silicon nitride ceramic, pure aluminum-Invar, or PI-304 stainless steel.

[0047] It should be noted that soldering the substrate 2 using a reflow oven is a conventional method or common knowledge in the field, and will not be described in detail here. Those skilled in the art can make any selection and soldering operations according to their needs or convenience.

[0048] It should be noted that in this embodiment 2, the thickness of the positioning part 6 (the superimposed thickness of each thermal expansion layer 62) is less than the predetermined gap between the outer shell 1 and the substrate 2, so that the positioning part 6 can extend into the space between the outer shell 1 and the substrate 2.

[0049] Example 3 like Figure 6 Based on the above-mentioned basic technical solution, the connecting part 5 includes an upper adapter plate 51 fixedly connected to one end of the elastic clamping part 3, a shrink plate 52 fixedly connected to the lower end of the upper adapter plate 51, and a lower adapter plate 53 fixedly connected to the lower end of the shrink plate 52. The positioning part 6 is fixedly connected to the lower end of the lower adapter plate 53. The shrink plate 52 is a force-bearing and telescopic plate structure.

[0050] When positioning the substrate 2 using a clamp, the overall length of the connecting part 5 can be changed by extending and retracting the shrink plate 52 according to the depth of the outer shell 1, so that the positioning part 6 can position the substrate 2 inside the outer shell 1 at different depths.

[0051] In this embodiment 3, the shrink plate 52 has plastic deformation capability. It can deform when subjected to force and maintain its deformed state when not subjected to force. It can be made of plastic, rubber, aluminum and its alloys or copper and its alloys.

[0052] Structurally, as one of the parallel options, the shrink plate 52 has an overall "S" shape, which can be stretched or shortened under force. As another parallel option, the shrink plate 52 can also be a plate-like structure.

[0053] In this embodiment 3, an inclined positioning surface 61 is provided on the other side of the positioning part 6, and the thickness of the positioning part 6 gradually increases from its lower end to its upper end.

[0054] It should be noted that, as a specific embodiment 3, the thickness of the upper end of the positioning part 6 is not less than the predetermined gap between the outer shell 1 and the substrate 2, and the thickness of the lower end of the positioning part 6 is the smallest, and this size is smaller than the predetermined gap between the outer shell 1 and the substrate 2. When the positioning part 6 extends into the gap between the inner wall of the outer shell 1 and the substrate 2, if the length of the connecting part 5 is insufficient to extend into the gap between the inner wall of the outer shell 1 and the substrate 2, force can be applied to the shrink plate 52 by means of an auxiliary tool such as a bamboo skewer, so that the shrink plate 52 is elongated until the positioning part 6 extends into the gap between the inner wall of the outer shell 1 and the substrate 2, and the positioning surface 61 abuts against the end of the substrate 2. This process continues until the positioning and installation of the fixture is completed, and all the positioning surfaces 61 can abut against the substrate 2, together forming a circumferential positioning of the substrate 2.

[0055] Example 4 like Figure 7 Based on the above-mentioned basic technical solution, the connecting part 5 includes an upper adapter plate 51 fixedly connected to one end of the elastic clamping part 3, a shrink plate 52 fixedly connected to the lower end of the upper adapter plate 51, and a lower adapter plate 53 fixedly connected to the lower end of the shrink plate 52. The positioning part 6 is fixedly connected to the lower end of the lower adapter plate 53. The shrink plate 52 is a force-bearing and telescopic plate structure.

[0056] When positioning the substrate 2 using a clamp, the overall length of the connecting part 5 can be changed by extending and retracting the shrink plate 52 according to the depth of the outer shell 1, so that the positioning part 6 can position the substrate 2 inside the outer shell 1 at different depths.

[0057] In this embodiment 4, the positioning part 6 includes at least two thermal expansion layers 62 whose ends are fixedly connected to the connecting part 5. Each thermal expansion layer 62 is stacked and fixedly connected in sequence along the thickness direction of the connecting part 5, and the thermal expansion coefficient decreases in sequence. The thermal expansion layer 62 with the smallest thermal expansion coefficient is used to extrude the substrate 2.

[0058] When the positioning part 6 extends into the gap between the inner wall of the outer shell 1 and the substrate 2, the thermal expansion layer 62 with the smallest coefficient of thermal expansion abuts against the end of the substrate 2. The welding position is located at the adjacent position of the fixture. During the welding process, each thermal expansion layer 62 expands due to heat. In order to release the internal stress generated by this uneven expansion, each thermal expansion layer 62 bends toward the thermal expansion layer 62 with the smallest coefficient of thermal expansion, and squeezes the substrate 2, thereby further achieving fine positioning.

[0059] It should be noted that in this embodiment 4, the thickness of the positioning part 6 (the superimposed thickness of each thermal expansion layer 62) is less than the predetermined gap between the outer shell 1 and the substrate 2, so that the positioning part 6 can extend into the space between the outer shell 1 and the substrate 2.

[0060] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0061] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0062] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0063] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0064] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0065] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An integrated circuit substrate bonding fixture, characterized by comprising: Includes an elastic clamping part (3), which has a clamping port (4) for the end of the outer shell (1) to enter and exit, and a connecting part (5) is fixedly connected to one end of the elastic clamping part (3). The connecting part (5) is vertically arranged and its upper end is fixedly connected to the elastic clamping part (3). A positioning part (6) is fixedly connected to the lower end of the connecting part (5). The side of the positioning part (6) facing the elastic clamping part (3) is used to abut against the inner wall of the outer shell (1), and its other side away from the elastic clamping part (3) is used to squeeze the substrate (2).

2. The integrated circuit substrate bonding fixture of claim 1, wherein An inclined positioning surface (61) is provided on the other side of the positioning part (6), and the thickness of the positioning part (6) gradually increases from its lower end to its upper end.

3. The integrated circuit substrate bonding fixture of claim 1, wherein The positioning part (6) includes at least two thermal expansion layers (62) whose ends are fixedly connected to the connecting part (5). Each thermal expansion layer (62) is stacked and fixedly connected in sequence along the thickness direction of the connecting part (5), and the thermal expansion coefficient decreases in sequence. The thermal expansion layer (62) with the smallest thermal expansion coefficient is used to extrude the substrate (2).

4. The integrated circuit substrate bonding fixture of claim 1, wherein The connecting part (5) has a straight plate-like structure.

5. The integrated circuit substrate bonding fixture of claim 1, wherein The connecting part (5) includes an upper adapter plate (51) fixedly connected to one end of the elastic clamping part (3), a shrink plate (52) fixedly connected to the lower end of the upper adapter plate (51), and a lower adapter plate (53) fixedly connected to the lower end of the shrink plate (52). The positioning part (6) is fixedly connected to the lower end of the lower adapter plate (53). The shrink plate (52) is a force-bearing and telescopic plate structure.

6. The integrated circuit substrate bonding fixture of claim 1, wherein The thickness of the elastic clamping part (3) connected to one end of the connecting part (5) is greater than the thickness of the connecting part (5).

7. The integrated circuit substrate bonding fixture of any one of claims 1-6, wherein, The elastic clamping part (3) includes a fixing plate (31) fixedly connected to the connecting part (5) at one end and a first arc plate (32) fixedly connected to the fixing plate (31) at one end. The first arc plate (32) is "C" shaped and the other end is bent toward the first arc plate (32). The clamping opening (4) is formed between the other end of the fixing plate (31) and the first arc plate (32).

8. The integrated circuit substrate bonding fixture of claim 7, wherein, The elastic clamping part (3) also includes a second arc plate (33) in the shape of "C". One end of the second arc plate (33) is fixedly connected to the other end of the first arc plate (32), and the other end of the second arc plate (33) is bent away from the fixed plate (31).

9. The integrated circuit substrate bonding fixture of claim 8, wherein, The elastic clamping part (3) also includes a force-applying plate (34), one end of which is fixedly connected to the other end of the second arc-shaped plate (33).

10. The integrated circuit substrate welding fixture according to claim 7, characterized in that, The fixing plate (31), the connecting part (5) and the positioning part (6) are located on the same plane on the side of the first arc plate (32) near the first arc plate (32).

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