Device for optimizing wedge welding

Abstract

The utility model relates to the technical field of packaging of high-speed photoelectric devices, in particular to a device for optimizing wedge welding, which comprises a plurality of clamping units and a tray assembly. The tray assembly is provided with a plurality of first containing grooves and spring columns, the clamping units are contained in the first containing grooves, and the spring columns are arranged above the clamping units; the clamping unit is provided with a second containing groove and a fastening bolt, the second containing groove is used for containing a to-be-ground product, and the fastening bolt is used for fastening the to-be-ground product. By means of the multiple clamping units and the tray assembly, the product to be ground can be placed in the clamping units, the optical fiber grinding machine is used for grinding residual wire ends, the continuity of impedance in a circuit where the product to be ground is located is guaranteed, the signal quality of an optical module is guaranteed, degradation factors are not introduced, and meanwhile the antenna secondary effect of high-frequency signals is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of high-speed optoelectronic device packaging, in particular to a device for optimizing wedge welding. Background Art

[0002] In high-speed optical communications, the required optical modules are required to work at 400G, 800G or even higher transmission rates. Wire Bonding technology has been widely used. In the welding operation using Wire Bonding technology, various types of energy, such as ultrasonic energy, thermoacoustic energy, thermal compression energy, etc., are used to bond the end of the metal wire to the first bonding position; after forming the first bond at the first bonding position, a section of the wire is extended to the second bonding position, and then a second bond is formed at the second bonding position. With the increase in welding rate, wedge bonding technology is widely used due to its lower inductance and shorter wire spacing.

[0003] In the welding operation using Wedge Bonding technology, the chip pad bonding is called the first bonding position, and the printed circuit board (PCB) pad bonding is called the second bonding position; after completing the first bonding, the wire is guided to the second bonding position by the wire hole on the wedge knife, and then the bonding and wire breaking are completed according to the positioning. At present, wire breaking is mainly completed by wedge-shaped tools, which can easily leave a residual wire head outside the bonding area (such as Figure 1 In the case of low-speed signals, this residual wire end has little effect, but in the case of high-speed signals, due to the antenna effect, this residual wire end will not only cause signal degradation, but also is the main source of crosstalk. At present, WedgeBonding usually adopts improved wedge positioning accuracy and high-precision wedges to improve the problem of residual wire ends in Wedge Bonding, but it is difficult to ensure that the entire wire end is within the bonding area. The method commonly used in the prior art to deal with residual wire ends is to use a wedge to directly cut off, but this method will damage the metal layer of the pad, thereby causing the pad to deform and damage the optical device, resulting in discontinuous impedance of the circuit where the optical device is located, and then causing degradation of the signal quality of the optical module, while also increasing the secondary antenna effect of the high-frequency signal.

[0004] In view of this, how to overcome the defects of the prior art and solve the above-mentioned technical problems is a difficult problem to be solved in this technical field. Utility Model Content

[0005] The utility model aims to overcome the problem that the residual wire ends are directly cut off by using a wedge knife, which leads to discontinuous impedance of the circuit where the optical device is located, deterioration of the signal quality of the optical module, and increase of the secondary effect of the antenna of the high-frequency signal.

[0006] The utility model is achieved in this way:

[0007] The utility model provides a device for optimizing wedge welding, comprising: a plurality of clamping units 1 and a tray assembly 2;

[0008] The tray assembly 2 is provided with a plurality of first receiving grooves 20 and spring columns 21, the clamping unit 1 is accommodated in the first receiving grooves 20, and the spring columns 21 are arranged above the clamping unit 1;

[0009] The clamping unit 1 is provided with a second receiving groove 10 and a fastening bolt 11 . The second receiving groove 10 is used to receive the product to be ground 3 , and the fastening bolt 11 is used to fasten the product to be ground 3 .

[0010] Preferably, when the product to be ground 3 is placed in the second containing groove 10, the first end surface 30 of the product to be ground 3 abuts against the first fixing surface 100 of the second containing groove 10, and the side surface of the product to be ground 3 abuts against the second fixing surface 101 of the second containing groove 10;

[0011] The fastening bolts 11 include a first bolt 110 and a second bolt 111 . The first bolt 110 is disposed on the outer side of the first movable surface 102 of the second receiving groove 10 , and the second bolt 111 is disposed on the outer side of the second movable surface 103 of the second receiving groove 10 .

[0012] Preferably, the first movable surface 102 extends toward the direction of the first fixed surface 100 to form a first fastening groove 12, and the third fixed surface 120 of the first fastening groove 12 is an open circle. The first bolt 110 is located on the outside of the first fastening groove 12 and is used to tighten the distance between the two side walls of the first fastening groove 12, thereby pushing the first movable surface 102 to move into the second accommodating groove 10.

[0013] Preferably, a first plane 122 is disposed between the first movable surface 102 and the third movable surface 121 of the first fastening groove 12 , and the first plane 122 is disposed perpendicular to the first movable surface 102 and the third movable surface 121 .

[0014] Preferably, the second movable surface 103 extends toward the second fixed surface 101 to form a second fastening groove 13, and the junction between the fourth fixed surface 130 and the fourth movable surface 131 of the second fastening groove 13 is an open circle;

[0015] The second bolt 111 is located outside the fourth movable surface 131 and is used to tighten the second fastening groove 13 , thereby pushing the second movable surface 103 to move into the second receiving groove 10 .

[0016] Preferably, a second plane 132 is disposed between the second movable surface 103 and the fourth movable surface 131 , and the second plane 132 is disposed perpendicular to the second movable surface 103 and the fourth movable surface 131 .

[0017] Preferably, the bolt head of the second bolt 111 is in a trapezoidal shape, and a third accommodating groove 14 is provided on the outer side of the fourth movable surface 131 . The third accommodating groove 14 is in a trapezoidal shape and is used to accommodate the bolt head portion of the second bolt 111 .

[0018] Preferably, each of the clamping units 1 is provided with a through hole 16 , and the tray assembly 2 is provided with a positioning column 22 . When the clamping unit 1 is placed in the first receiving groove 20 , the positioning column 22 is received in the through hole 16 .

[0019] Preferably, when the product to be ground 3 is placed in the second containing groove 10, the first end surface 30 of the product to be ground 3 abuts against the first fixing surface 100 of the second containing groove 10, and the side surface of the product to be ground 3 abuts against the second fixing surface 101 of the second containing groove 10;

[0020] A fastening slider 15 is arranged in the second receiving groove 10, and the second end face 150 and the third end face 151 of the fastening slider 15 are arranged vertically. The second end face 150 and the third end face 151 are used to cooperate with the first fixing surface 100 and the second fixing surface 101 to fix the product to be ground 3 in the second receiving groove 10.

[0021] Preferably, the fastening bolt 11 abuts against the fourth end face 152 of the fastening slider 15, and the fastening bolt 11 is rotated and pushed along the angular bisector direction of the second end face 150 and the third end face 151, and the fastening bolt 11 is used to push the fastening slider 15 to fix the product 3 to be ground.

[0022] Compared with the prior art, the beneficial effect of the utility model lies in that: by setting up multiple clamping units 1 and tray assemblies 2, the product to be polished 3 after bonding can be placed in the clamping unit 1 and the residual wire ends can be polished using an optical fiber polisher. Compared with direct cutting with a wedge knife, the polishing method ensures the continuity of the impedance in the circuit where the product to be polished 3 is located, ensures the signal quality of the optical module, does not introduce degradation factors, and also reduces the secondary antenna effect of high-frequency signals; and, the device can be used to polish multiple products to be polished 3 at the same time, while ensuring consistency and yield rate, it also takes into account the production efficiency per unit time. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 A schematic diagram of a product to be ground of a device for optimizing wedge welding provided in Example 1 of the utility model;

[0025] Figure 2 A schematic diagram of the overall structure of a device for optimizing wedge welding provided in Example 1 of the utility model;

[0026] Figure 3 A schematic diagram of a clamping unit of a device for optimizing wedge welding provided in Example 1 of the utility model;

[0027] Figure 3a A schematic diagram of a first fastening groove and a second fastening groove of a device for optimizing wedge welding provided in Example 1 of the utility model;

[0028] Figure 4 A schematic diagram of a tray assembly of a device for optimizing wedge welding provided in Example 1 of the utility model;

[0029] Figure 5 A schematic diagram of the overall structure of a second device for optimizing wedge bonding provided in Example 2 of the utility model;

[0030] Figure 6 A schematic diagram of a tray assembly of a second device for optimizing wedge welding provided by an embodiment of the utility model;

[0031] Figure 7 A schematic diagram of a clamping unit of a second device for optimizing wedge welding provided in an embodiment of the utility model.

[0032] Specifically, the drawings are marked as follows:

[0033] 1-clamping unit, 10-second accommodating groove, 100-first fixed surface, 101-second fixed surface, 102-first movable surface, 103-second movable surface, 11-fastening bolt, 110-first bolt, 111-second bolt, 12-first fastening groove, 120-third fixed surface, 121-third movable surface, 122-first plane, 13-second fastening groove, 130-fourth fixed surface, 131-fourth movable surface, 132-second plane, 14-third accommodating groove, 15-fastening slider, 150-second end surface, 151-third end surface, 152-fourth end surface, 16-through hole, 17-third plane, 18-fourth plane, 19-fifth plane, 2-tray assembly, 20-first accommodating groove, 21-spring column, 210-pressing plate, 22-positioning column, 23-fixed frame, 3-product to be ground, 30-first end surface. DETAILED DESCRIPTION

[0034] In the description of the present invention, the terms "inside", "outside", "longitudinal", "lateral", "upper", "lower", "top", "bottom" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present invention.

[0035] The terms "first", "second", etc. in this utility model are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of this utility model, unless otherwise specified, "plurality" means two or more.

[0036] In the present invention, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium.

[0037] 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 of 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.

[0038] Embodiment 1:

[0039] The utility model embodiment provides a device for optimizing wedge welding, such as Figure 2As shown, it includes: a plurality of clamping units 1 and a tray assembly 2.

[0040] The tray assembly 2 is provided with a plurality of first receiving grooves 20 and spring columns 21, the clamping unit 1 is accommodated in the first receiving grooves 20, and the spring columns 21 are arranged above the clamping unit 1; in one embodiment, the tray assembly 2 and the clamping unit 1 are made of stainless steel or other metal materials. Specifically, the tray assembly 2 is provided with a fixing frame 23, and the spring columns 21 are arranged at the four corners extending from the fixing frame 23.

[0041] Among them, Figure 3 and Figure 4 As shown, each of the clamping units 1 is provided with a through hole 16, and the tray assembly 2 is provided with a positioning column 22. When the clamping unit 1 is placed in the first receiving groove 20, the positioning column 22 is received in the through hole 16. In one embodiment, the clamping unit 1 is in a "Z" shape, and there is a preset height difference between the third plane 17 and the fourth plane 18 of the clamping unit 1, and the preset height difference can be equal to the height of the through hole 16; when the spring column 21 is placed in the first receiving groove 20, the bottom end of the spring column 21 is pressed between the two through holes 16 of the clamping unit 1, so that the third plane 17 is in close contact with the upper surface of the tray assembly 2, so that when the grinder grinds the residual thread ends of the product 3 to be grinded, the clamping unit 1 is not pushed up by the pressure applied by the grinder, thereby ensuring the stability of the grinding process.

[0042] Continue reading Figure 3 As shown, the clamping unit 1 is provided with a second receiving groove 10 and a fastening bolt 11, wherein the second receiving groove 10 is used to receive the product to be ground 3, and the fastening bolt 11 is used to fasten the product to be ground 3. Specifically, when the product to be ground 3 is placed in the second receiving groove 10, the side where the residual thread head is located is the grinding surface, and the grinding surface is placed in the second receiving groove 10 with the grinding surface facing downward.

[0043] Compared with the prior art, the beneficial effect of the utility model is that: by setting up multiple clamping units 1 and tray assemblies 2, the chip after bonding can be placed in the clamping unit 1 and the residual wire ends can be ground using a fiber optic grinder. Compared with direct cutting with a wedge knife, the grinding method ensures the continuity of the impedance in the circuit where the product to be ground 3 is located, ensures the signal quality of the optical module, does not introduce degradation factors, and also reduces the secondary antenna effect of high-frequency signals; and, the device can be used to grind multiple products to be ground 3 at the same time, while ensuring consistency and yield rate, it also takes into account production efficiency per unit time.

[0044] In order to illustrate the complete solution provided by the embodiment of the utility model, the structural details of the above solution will be further described below.

[0045] like Figure 1 As shown, it is a schematic diagram of a product 3 to be ground. The part of the product 3 to be ground that needs to be ground is the part shown in the dotted box in the figure. Before grinding, the ground product needs to be placed in the second receiving groove 10 of the clamping unit 1, and then the clamping unit 1 is placed in the first receiving groove 20 of the tray assembly 2 and fixed, and then a grinder is used to grind the residual thread ends in the dotted box.

[0046] When the product to be ground 3 is placed in the second receiving groove 10, the side wall of the product to be ground 3 will abut against the inner wall of the second receiving groove 10. Figure 3 As shown, specifically: when the product to be ground 3 is placed in the second receiving groove 10, the first end face 30 of the product to be ground 3 abuts against the first fixed face 100 of the second receiving groove 10, and the side face of the product to be ground 3 abuts against the second fixed face 101 of the second receiving groove 10; the fastening bolt 11 includes a first bolt 110 and a second bolt 111, the first bolt 110 is arranged on the outer side of the first movable face 102 of the second receiving groove 10, and the second bolt 111 is arranged on the outer side of the second movable face 103 of the second receiving groove 10. After the product to be ground 3 is placed in the second receiving groove 10, the first movable face 102 and the second movable face 103 are pushed into the second receiving groove 10 by tightening the first bolt 110 and the second bolt 111, and the product to be ground 3 is locked in the second receiving groove 10.

[0047] Among them, Figure 3a As shown, the cleverness of the design of the first movable surface 102 lies in that the first movable surface 102 extends in the direction of the first fixed surface 100 to form a first fastening groove 12, and the third fixed surface 120 of the first fastening groove 12 is an open circular shape. The first bolt 110 is located on the outside of the first fastening groove 12, and is used to tighten the distance between the two side walls of the first fastening groove 12, thereby pushing the first movable surface 102 to move into the second receiving groove 10. Among them, since the third fixed surface 120 is an open circular shape, when the first bolt 110 is tightened to push the first movable surface 102, the third fixed surface 120 has a certain elastic deformation ability, so that after the first movable surface 102 is pushed, when the first bolt 110 is loosened, the deformation at the junction of the third fixed surface 120 of the first fastening groove 12 and the third movable surface 121 is small, thereby reducing the damage rate of the clamping unit 1 and extending its service life.

[0048] However, if the first movable surface 102 and the third movable surface 121 of the first fastening groove 12 are in the same horizontal plane, even if the first bolt 110 is screwed in to the maximum extent, the contact area between the first movable surface 102 and the product 3 to be ground is small, that is, the first movable surface 102 and the side surface of the product 3 to be ground may not remain parallel, and thus the product 3 to be ground cannot be effectively clamped. Figure 3a As shown, a first plane 122 is provided between the first movable surface 102 and the third movable surface 121 of the first fastening groove 12, and the first plane 122 is provided perpendicular to the first movable surface 102 and the third movable surface 121. Specifically, there is a preset gap between the first plane 122 and the first fixing surface 100 of the second receiving groove 10, and the preset gap is between 1mm-2mm, so that when the first bolt 110 pushes the third movable surface 121 to lock the first fastening groove 12, the first movable surface 102 also retracts into the second receiving groove 10 until the product 3 to be ground is fixed, and the first movable surface 102 and the side surface of the product 3 to be ground are abutted by surface to surface, which increases the contact area between the two and ensures the stability of the clamping.

[0049] The above content describes the mechanism of the first movable surface 102 of the second receiving groove 10 clamping the product to be ground 3. The clamping mechanism of the second movable surface 103 of the second receiving groove 10 will be described below.

[0050] Similar to the first movable surface 102, the second movable surface 103 extends in the direction of the second fixed surface 101 to form a second fastening groove 13, and the junction of the fourth fixed surface 130 and the fourth movable surface 131 of the second fastening groove 13 is an open circle; specifically, the reason for setting the junction of the fourth fixed surface 130 and the fourth movable surface 131 as an open circle is that, in order to tighten the second accommodating groove 10, the fourth movable surface 131 needs to be pushed inward for effective tightening, and the open circle design ensures that when the second bolt 111 pushes the fourth movable surface 131, the junction of the fourth movable surface 131 and the fourth fixed surface 130 does not deform; the second bolt 111 is located on the outside of the fourth movable surface 131, and is used to tighten the second fastening groove 13, thereby pushing the second movable surface 103 to move into the second accommodating groove 10.

[0051] However, if the second movable surface 103 and the fourth movable surface 131 of the second fastening groove 13 are in the same horizontal plane, even if the second bolt 111 is screwed in to the maximum extent, the abutment between the second movable surface 103 and the product 3 to be ground clamped in the second receiving groove 10 is only one point, that is, the second movable surface 103 and the side surface of the product 3 to be ground cannot remain parallel, so the product 3 to be ground cannot be effectively clamped. Therefore, a second plane 132 is provided between the second movable surface 103 and the fourth movable surface 131, and the second plane 132 is provided perpendicular to the second movable surface 103 and the fourth movable surface 131. Specifically, there is a preset gap between the second plane 132 and the second fixed surface 101 of the second accommodating groove 10, and the preset gap is between 1mm and 2mm. Therefore, when the second bolt 111 is pushed into the side of the fourth movable surface 131 of the second fastening groove 13 to lock the second fastening groove 13, the second movable surface 103 also retracts into the second accommodating groove 10 until the product 3 to be ground is fixed, and the second movable surface 103 is in surface contact with the side of the product 3 to be ground, thereby ensuring the stability of its clamping.

[0052] Since the internal end surfaces of the second fastening groove 13 are small in area, the second bolt 111 cannot directly pass through the end surface of the second fastening groove 13 for fastening. Therefore, the bolt head of the second bolt 111 is trapezoidal, and a third receiving groove 14 is provided on the outer side of the fourth movable surface 131. The third receiving groove 14 is trapezoidal and is used to receive the bolt head of the second bolt 111. Specifically, the upper base of the trapezoidal bolt head of the second bolt 111 is slightly wider than the upper base width of the third receiving groove 14. Therefore, during the tightening process of the second bolt 111, the side of the third receiving groove 14 can be squeezed to push the second movable surface 103 of the second receiving groove 10 inward until the product 3 to be ground is fixed.

[0053] In summary, the method of using the device provided by the embodiment of the utility model is as follows: place the to-be-ground surface of the product 3 to be ground downward (i.e., the side where the residual thread ends are located) into the second receiving groove 10 of the clamping unit 1, tighten the first bolt 110 and the second bolt 111 to tighten the second receiving groove 10, and fix the product 3 to be ground in the second receiving groove 10; place the clamping unit 1 into the first receiving groove 20 of the tray assembly 2, couple the through hole 16 and the positioning column 22, press the spring column 21 between the two through holes 16 of the clamping unit 1, and finally place the entire device on the grinder to grind the residual thread ends; after grinding, loosen the first bolt 110 and the second bolt 111, take out the ground product 3 to be ground, use an air gun to blow air to micro-treat the grinding surface, observe whether the residue on the grinding surface is completely removed under a white light microscope, and use a cotton swab dipped in alcohol to wipe off the dirt that cannot be washed away by the air gun.

[0054] It is worth mentioning that the grinder mentioned in the embodiment of the utility model is a prior art, and its grinding tool can be accurately positioned and will not grind other parts of the product 3 to be ground. It is a technology well known to those skilled in the art and will not be elaborated here.

[0055] Embodiment 2:

[0056] This embodiment 2 further provides a second device for optimizing wedge welding on the basis of embodiment 1. The structural form of its clamping unit 1 and tray assembly 2 is different from the scheme mentioned in embodiment 1, but the working mechanism of the two is the same, that is, the product 3 to be ground is placed in the clamping unit 1 for fixing, and then the clamping unit 1 is placed in the tray assembly 2 for fixing, and finally the overall device is placed above the grinder to grind the product 3 to be ground.

[0057] Embodiment 2 of the present utility model also provides a second device for optimizing wedge welding, such as Figure 5 As shown, it includes: a plurality of clamping units 1 and a tray assembly 2.

[0058] like Figure 6 As shown, the tray assembly 2 is provided with a plurality of first accommodating grooves 20 and spring columns 21, the clamping unit 1 is accommodated in the first accommodating grooves 20, and the spring columns 21 are arranged above the clamping unit 1; in one embodiment, the tray assembly 2 and the clamping unit 1 are made of stainless steel or other metal materials.

[0059] like Figure 7 As shown, the clamping unit 1 is provided with a second receiving groove 10 and a fastening bolt 11, the second receiving groove 10 is used to receive the product to be ground 3, and the fastening bolt 11 is used to fasten the second receiving groove 10 to prevent the product to be ground 3 from falling out of the second receiving groove 10; when the product to be ground 3 is placed in the second receiving groove 10, the first end face 30 of the product to be ground 3 abuts against the first fixed surface 100 of the second receiving groove 10, and the side face of the product to be ground 3 abuts against the second fixed surface 101 of the second receiving groove 10.

[0060] A fastening slider 15 is arranged in the second receiving groove 10, and the second end face 150 and the third end face 151 of the fastening slider 15 are arranged vertically. The second end face 150 and the third end face 151 are used to cooperate with the first fixing surface 100 and the second fixing surface 101 to fix the product to be ground 3 in the second receiving groove 10.

[0061] The fastening bolt 11 abuts against the fourth end face 152 of the fastening slider 15, and the fastening bolt 11 is rotated and pushed along the angular bisector direction of the second end face 150 and the third end face 151, and the fastening bolt 11 is used to push the fastening slider 15 to fix the product 3 to be ground.

[0062] After the product 3 to be ground is fixed, the clamping unit 1 is placed in the first receiving groove 20 of the tray assembly 2, and the spring column 21 is in contact with the clamping unit 1, so that when the device is placed on the grinder for grinding, the clamping unit 1 will not be pushed up due to the pressure applied by the grinder. Figure 6 and Figure 7 As shown, a pressing plate 210 is provided at the lower end of the spring column 21, and a fifth plane 19 exists between the second receiving groove 10 and the side of the clamping unit 1. The pressing plate 210 abuts against the fifth plane 19 to press the clamping unit 1 so that the residual thread ends of the product to be ground 3 located at the bottom of the second receiving groove 10 come into contact with the grinder.

[0063] The above description is only a preferred embodiment of the present invention and is 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 device for optimizing wedge bonding, characterized in that: include: A plurality of clamping units (1) and a tray assembly (2); The tray assembly (2) is provided with a plurality of first receiving grooves (20) and spring columns (21), the clamping unit (1) is accommodated in the first receiving grooves (20), and the spring columns (21) are arranged above the clamping unit (1); The clamping unit (1) is provided with a second accommodating groove (10) and a fastening bolt (11), wherein the second accommodating groove (10) is used to accommodate the product to be ground (3), and the fastening bolt (11) is used to fasten the product to be ground (3).

2. The device for optimizing wedge bonding according to claim 1, characterized in that: When the product to be ground (3) is placed in the second containing groove (10), the first end surface (30) of the product to be ground (3) abuts against the first fixing surface (100) of the second containing groove (10), and the side surface of the product to be ground (3) abuts against the second fixing surface (101) of the second containing groove (10); The fastening bolt (11) comprises a first bolt (110) and a second bolt (111); the first bolt (110) is arranged on the outer side of the first movable surface (102) of the second receiving groove (10); and the second bolt (111) is arranged on the outer side of the second movable surface (103) of the second receiving groove (10).

3. The device for optimizing wedge bonding according to claim 2, characterized in that: The first movable surface (102) extends in the direction of the first fixed surface (100) to form a first fastening groove (12); the third fixed surface (120) of the first fastening groove (12) is an open circle; the first bolt (110) is located on the outside of the first fastening groove (12) and is used to tighten the distance between the two side walls of the first fastening groove (12), thereby pushing the first movable surface (102) to move into the second accommodating groove (10).

4. The device for optimizing wedge bonding according to claim 3, characterized in that: A first plane (122) is arranged between the first movable surface (102) and the third movable surface (121) of the first fastening groove (12), and the first plane (122) is arranged perpendicular to the first movable surface (102) and the third movable surface (121).

5. The device for optimizing wedge bonding according to claim 2, characterized in that: The second movable surface (103) extends in the direction of the second fixed surface (101) to form a second fastening groove (13); the junction between the fourth fixed surface (130) and the fourth movable surface (131) of the second fastening groove (13) is an open circle; The second bolt (111) is located outside the fourth movable surface (131) and is used to tighten the second fastening groove (13), thereby pushing the second movable surface (103) to move into the second accommodating groove (10).

6. The device for optimizing wedge bonding according to claim 5, characterized in that: A second plane (132) is arranged between the second active surface (103) and the fourth active surface (131), and the second plane (132) is arranged perpendicular to the second active surface (103) and the fourth active surface (131).

7. The device for optimizing wedge bonding according to claim 5, characterized in that: The bolt head of the second bolt (111) is in a trapezoidal shape, and a third accommodating groove (14) is provided on the outer side of the fourth movable surface (131). The third accommodating groove (14) is in a trapezoidal shape and is used to accommodate the bolt head of the second bolt (111).

8. The device for optimizing wedge bonding according to any one of claims 1 to 7, characterized in that: Each of the clamping units (1) is provided with a through hole (16), and the tray assembly (2) is provided with a positioning column (22); when the clamping unit (1) is placed in the first receiving groove (20), the positioning column (22) is received in the through hole (16).

9. The device for optimizing wedge bonding according to claim 1, characterized in that: When the product to be ground (3) is placed in the second containing groove (10), the first end surface (30) of the product to be ground (3) abuts against the first fixing surface (100) of the second containing groove (10), and the side surface of the product to be ground (3) abuts against the second fixing surface (101) of the second containing groove (10); A fastening slider (15) is arranged in the second receiving groove (10); the second end face (150) and the third end face (151) of the fastening slider (15) are arranged vertically; the second end face (150) and the third end face (151) are used to cooperate with the first fixing face (100) and the second fixing face (101) to fix the product to be ground (3) in the second receiving groove (10).

10. The device for optimizing wedge bonding according to claim 9, characterized in that: The fastening bolt (11) abuts against the fourth end face (152) of the fastening slider (15), and the fastening bolt (11) is rotated and pushed along the angular bisector direction of the second end face (150) and the third end face (151). The fastening bolt (11) is used to push the fastening slider (15) to fix the product to be ground (3).

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