Integrated circuit power device welding device

Abstract

The utility model relates to the technical field of integrated circuit power devices, and discloses an integrated circuit power device welding device, which comprises a pressing plate body, a pressing unit and a fixing unit, the pressing plate body comprises a positioning hole, a hollow hole and a mounting hole are arranged on the pressing plate body, and the fixing unit is arranged on the pressing plate body. The pressing unit is arranged above the pressing plate body and comprises a first pressing unit, the first pressing unit comprises a first pressing plate, the first pressing plate is fixedly connected with a pressing claw, first connecting holes are formed in the two ends of the first pressing plate, and a metal pressing claw is additionally arranged at the position of a connecting rod between pins of each product needing wire bonding. Compared with the prior art, a previous whole-column material pressing mode is changed into a mode that pressure is applied to a connecting rod between pins of two adjacent products in a single-column product for stable material pressing, the influence caused by material shaking is effectively reduced when ultrasound and pressure are applied to a machine table, the welding reliability is guaranteed, and the production yield and efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of integrated circuit power devices, in particular to an integrated circuit power device welding device. Background Art

[0002] With the increasing degree of digitalization and the expansion of electronic product types, consumers are increasingly demanding high-performance and high-reliability electronic products. As a key component of electronic products, the market demand for press plates for integrated circuit power device welding is also increasing.

[0003] The existing press plate only presses the upper and lower outer edges of the frame, resulting in unstable material pressing and resonance during ultrasonic operation. While reducing the ultrasonic output can reduce the resonance amplitude, this problem is still unavoidable during production, leading to weld loss, deformation, and abnormal arcing, thus affecting product quality. Therefore, process improvements are needed to eliminate resonance. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose an integrated circuit power device welding device.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solution: an integrated circuit power device welding device, including a pressure plate body, a pressing unit and a fixing unit, the pressure plate body includes a positioning hole, and a hollow hole is provided on the pressure plate body, and an installation hole is provided on the pressure plate body, the pressing unit is arranged above the pressure plate body, and the pressing unit includes a first pressing unit and a second pressing unit.

[0006] As a further description of the above technical solution:

[0007] The first pressing unit includes a first pressing plate, and the first pressing plate is fixedly connected with a pressing claw, and first connecting holes are provided at both ends of the first pressing plate.

[0008] As a further description of the above technical solution:

[0009] The second pressing unit includes a second pressing plate, and a second connecting hole is provided on the second pressing plate.

[0010] As a further description of the above technical solution:

[0011] There are multiple groups of positioning holes, and the positioning holes are used to determine the relative positions of the pressing plate body and the working platform, and the pressing plate body is mounted on the machine platform by fixing screws.

[0012] As a further description of the above technical solution:

[0013] The pressing unit and the fixing unit are arranged above the hollow hole and the mounting hole, and the hollow hole is used to expose the product unit that needs to be operated.

[0014] As a further description of the above technical solution:

[0015] The second pressing unit is corresponding to pressing the connecting rods on the left and right sides of each product in a single row of products, and the first pressing unit is corresponding to pressing the connecting rod between the pins of two adjacent products in a single row of products.

[0016] As a further description of the above technical solution:

[0017] The fixing unit includes a positioning piece, and the positioning piece slides through and is connected with a positioning pin.

[0018] As a further description of the above technical solution:

[0019] There are multiple groups of positioning pieces, and the positioning pieces are evenly distributed and attached to the upper ends of the second pressing plate and the first pressing plate.

[0020] As a further description of the above technical solution:

[0021] The positioning pins are provided in multiple groups and are used to connect the pressing plate body and the pressing unit, while locking the position of the pressing unit and playing a loosening and tightening role.

[0022] The utility model has the following beneficial effects:

[0023] 1. By adding metal pressure claws at the connecting rod position between the pins of each product that needs to be welded, the previous whole-row pressing method is changed to applying pressure on the connecting rod between the pins of two adjacent products in a single row to stabilize the material. When the machine applies ultrasound and pressure, the impact of material shaking is effectively reduced, ensuring welding reliability and improving production yield and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the three-dimensional structure of an integrated circuit power device welding device proposed by the present invention;

[0025] Figure 2 This is a partial structural diagram of an integrated circuit power device welding device proposed in this utility model. Figure 1 ;

[0026] Figure 3 This is a partial structural diagram of an integrated circuit power device welding device proposed in this utility model. Figure 2 ;

[0027] Figure 4 This is a partial structural diagram of an integrated circuit power device welding device proposed in this utility model. Figure 3 .

[0028] Legend:

[0029] 1. Pressing plate body; 101. Positioning hole; 102. Hollow hole; 103. Mounting hole; 2. Pressing unit; 21. First pressing unit; 211. First pressing plate; 212. Pressing claw; 213. First connecting hole; 22. Second pressing unit; 221. Second pressing plate; 222. Second connecting hole; 3. Fixing unit; 301. Positioning piece; 302. Positioning pin. DETAILED DESCRIPTION

[0030] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] Reference Figures 1-4 The utility model provides an integrated circuit power device welding device, including: a pressing plate body 1, a pressing unit 2 and a fixing unit 3.

[0032] Specifically, it includes a pressure plate body 1, a pressing unit 2 and a fixing unit 3. The pressure plate body 1 includes a positioning hole 101, and a hollow hole 102 is provided on the pressure plate body 1, and an installation hole 103 is provided on the pressure plate body 1. The pressing unit 2 is arranged above the pressure plate body 1, and the pressing unit 2 includes a first pressing unit 21 and a second pressing unit 22.

[0033] In this embodiment, the pressing plate body 1, the pressing unit 2 and the fixing unit 3 constitute an integrated circuit power device welding device involved in this application, which realizes the operation of applying pressure to the integrated circuit power device for stable pressing.

[0034] In this embodiment, a welding device (not shown) is provided above the pressing plate body 1. The welding device provides precise heating conditions to form a firm welding connection between the integrated circuit chip and the lead frame (or substrate).

[0035] In this embodiment, the first pressing unit 21 is 40±10 cm long, 4±2 cm wide, and 1±0.5 cm thick. The height difference between 212 and the left and right sides is 6.16 cm, the processing accuracy is ±0.01 mm, and the material of the first pressing unit 21 is stainless steel.

[0036] It should be noted that the first pressing unit 21 includes 3 to 6 212, the pressing claw 212 is 1 to 1.7 cm long and 0.2 to 0.6 cm wide. At the same time, in order to reserve space for the welding head to move at the tangent line, the pressing claw 212 is at an angle of 100 to 160 degrees to the horizontal position, and the distance between two adjacent pressing claws 212 is greater than 0.4 cm to avoid hitting the needle or the cutting knife.

[0037] Specifically, the first pressing unit 21 includes a first pressing plate 211, and the first pressing plate 211 is fixedly connected to a pressing claw 212, and first connecting holes 213 are provided at both ends of the first pressing plate 211. The second pressing unit 22 includes a second pressing plate 221, and a second connecting hole 222 is provided on the second pressing plate 221. There are multiple groups of positioning holes 101, and the positioning holes 101 are used to determine the relative position of the pressing plate body 1 and the working platform, and the pressing plate body 1 is installed on the machine by fixing screws. The pressing unit 2 and the fixing unit 3 are arranged above the hollow hole 102 and the mounting hole 103, and the hollow hole 102 is used to expose the product unit that needs to be operated. The second pressing unit 22 corresponds to the connecting rods on the left and right sides of each product in the pressing single-row products, and the first pressing unit 21 corresponds to the connecting rod between the pins of two adjacent products in the pressing single-row products.

[0038] As a preferred embodiment, the positioning hole 101 is 5.5±1 cm long, 2.5±1 cm wide, and 3±1 cm deep.

[0039] As a preferred embodiment, the pressing plate body 1 is 100±20cm long, 40±10cm wide, and 3±1cm thick. The four corners of the pressing plate body 1 each have a 45-degree chamfer, the chamfer length and width are 5cm, the processing accuracy is ±0.1mm, and the material of the pressing plate body 1 is stainless steel.

[0040] Specifically, the fixing unit 3 includes a positioning piece 301, and the positioning piece 301 slides through and is connected with a positioning pin 302. There are multiple groups of positioning pieces 301, and the positioning pieces 301 are evenly distributed and fit on the upper ends of the second pressure plate 221 and the first pressure plate 211. There are multiple groups of positioning pins 302, and the positioning pins 302 are used to connect the pressure plate body 1 and the pressing unit 2 while locking the position of the pressing unit 2 and playing a loosening and tightening role.

[0041] As a preferred embodiment, the second pressing unit 22 is 17±5cm long, 2±1cm wide, and 1±0.5cm thick. The second pressing plate 221 has a height difference of 5cm with the left side, a processing accuracy of ±0.01mm, and the material of the second pressing unit 22 is stainless steel.

[0042] When in use, first install the pressing plate body on the machine table with the fixing screws, and then use the metal pressing claws to press the pins of each product that needs to be welded to press the material individually to stabilize the material position.

[0043] The utility model discloses an integrated circuit power device welding device that can increase the pressure fit on the connecting rods between the pins of two adjacent products in each single row of products, thereby avoiding abnormalities caused by resonance and negative effects on the products, thereby improving product quality.

[0044] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An integrated circuit power device welding device, characterized in that: The invention comprises a pressing plate body (1), a pressing unit (2) and a fixing unit (3); the pressing plate body (1) comprises a positioning hole (101), a hollow hole (102) is provided on the pressing plate body (1), and a mounting hole (103) is provided on the pressing plate body (1); the pressing unit (2) is arranged above the pressing plate body (1), and the pressing unit (2) comprises a first pressing unit (21) and a second pressing unit (22).

2. The integrated circuit power device welding device according to claim 1, characterized in that: The first pressing unit (21) comprises a first pressing plate (211), and the first pressing plate (211) is fixedly connected to a pressing claw (212), and first connecting holes (213) are provided at both ends of the first pressing plate (211).

3. The integrated circuit power device welding device according to claim 1, characterized in that: The second pressing unit (22) comprises a second pressing plate (221), and a second connecting hole (222) is provided on the second pressing plate (221).

4. The integrated circuit power device welding device according to claim 1, characterized in that: The positioning holes (101) are provided in multiple groups and are used to determine the relative positions of the pressing plate body (1) and the working platform, and the pressing plate body (1) is mounted on the machine platform by fixing screws.

5. The integrated circuit power device welding device according to claim 1, characterized in that: The pressing unit (2) and the fixing unit (3) are arranged above the hollow hole (102) and the mounting hole (103), and the hollow hole (102) is used to expose the product unit that needs to be operated.

6. The integrated circuit power device welding device according to claim 1, characterized in that: The second pressing unit (22) corresponds to pressing the connecting rods on the left and right sides of each product in a single row of products, and the first pressing unit (21) corresponds to pressing the connecting rod between the pins of two adjacent products in a single row of products.

7. The integrated circuit power device welding device according to claim 1, characterized in that: The fixing unit (3) includes a positioning piece (301), and the positioning piece (301) is slidably connected with a positioning pin (302).

8. The integrated circuit power device welding device according to claim 7, characterized in that: The positioning pieces (301) are provided in multiple groups, and the positioning pieces (301) are evenly distributed and attached to the upper ends of the second pressing plate (221) and the first pressing plate (211).

9. The integrated circuit power device welding device according to claim 7, characterized in that: The positioning pins (302) are provided in multiple groups and are used to connect the pressing plate body (1) and the pressing unit (2), while locking the position of the pressing unit (2) and playing a loosening and tightening role.

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