Shaping jig for power module product

Abstract

The utility model provides a shaping jig for a power module product, which relates to the technical field of semiconductor device packaging, is matched with a power module component for use, and comprises a bottom plate, a base plate, a pressing plate and a limiting module, the base plate is fixed with the bottom plate in a bolting manner, the limiting module is fixed with the bottom plate in a bolting manner, the pressing plate is movably connected with the limiting module, and the pressing plate is movably connected with the limiting module. The pin shaping device comprises a base plate, a pressing plate is arranged on the base plate, a horizontal fixing plate is arranged on one side of the pressing plate, a protection plate is arranged below the horizontal fixing plate, and the protection plate and the horizontal fixing plate are fixed in a bolted connection mode. According to the utility model, the protection plate is fixedly bolted with the pressing plate above through the blind holes, so that the lower surface of the protection plate is always in a flat state, and the protection plate and the base plate are made of high-hardness materials, so that the pins cannot be damaged in the pin shaping process.

Description

Technical Field

[0001] This utility model relates to the field of semiconductor device packaging technology, specifically a shaping fixture for power module products. Background Technology

[0002] With the continuous increase in the types and quantities of electronic products, the usage of various electronic components is also growing. Due to differences in pin height during transportation or manufacturing, components need to be shaped during use to meet the requirements of through-hole or surface mounting.

[0003] The most significant issue during the lead forming process is lead deformation, caused by thermal shrinkage stress generated during molding. During the cooling process after molding, the molding compound continues to solidify and shrink. Furthermore, the mismatch in thermal expansion coefficients between the molding compound and the frame material causes the molding compound to shrink more than the frame material, potentially leading to frame warping and non-coplanarity issues.

[0004] If manual shaping and trimming is used during the process, not only is the operation inefficient and the trimming quality unstable, but if the clamping is not done properly, internal stress can easily be generated at the root of the pin, affecting the reliability of subsequent soldering and even damaging the components. Different specifications of components have different pin diameters, and existing equipment can usually only flatten the pins of one specification of component, which is not suitable for flattening other specifications of components, thus causing a waste of resources.

[0005] To address the aforementioned issues, there is an urgent need to develop a shaping fixture for power module products. Utility Model Content

[0006] This utility model is a shaping fixture for power module products. To solve the problem of different pin heights caused by component transfer, factory shipment, or rib forming process, and the warping of the frame belt caused by different shrinkage of the frame material, resulting in non-coplanarity, this utility model has a protective plate and a pressure plate working together to adjust the pin height of the power module components to be shaped, so that all pins of the components are at the same level to achieve product qualification. At the same time, this utility model is applicable to the flattening of components of various specifications, meeting production needs.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a shaping fixture for power module products, used in conjunction with power module components, comprising a base plate, a pad plate, a pressure plate, and a limiting module. The pad plate is bolted to the base plate, the limiting module is bolted to the base plate, the pressure plate is movably connected to the limiting module, a horizontal fixing plate is provided on one side of the pressure plate, a protective plate is provided below the horizontal fixing plate, and the protective plate is bolted to the horizontal fixing plate.

[0008] Preferably, the limiting module includes a left bracket, a right bracket, and a limiting block. The left and right brackets are fixedly connected to the base plate. The left and right brackets are T-shaped structures. Each of the left and right brackets has an extended support block on one side of its front end. The extended support blocks of the left and right brackets have positioning holes. The left and right brackets have several threaded holes on their upper sides. The limiting block is located on the upper side of the left and right brackets. The limiting block is fixed to the left and right brackets by bolting. The distance between the left and right brackets corresponds to the width of the limiting block.

[0009] Preferably, the horizontal fixing plate has columnar protrusions on both sides, and the horizontal fixing plate is movably connected to the limiting module through the columnar protrusions. The pressure plate moves in a semi-circular motion around the columnar protrusions.

[0010] Preferably, the upper surface of the protection board is provided with blind holes, and the distance between the protection board and the pad in the horizontal state corresponds to the pin height of the power module components to be shaped.

[0011] Preferably, the protection board has multiple heights and can be adjusted according to the pin heights of the power module components to be shaped.

[0012] Beneficial effects

[0013] This utility model provides a shaping fixture for power module products, which has the following advantages compared with the prior art:

[0014] The device features a pressure plate that moves in a semi-circular motion around a limiting module. A protective plate is located below the pressure plate. The interaction between the protective plate and the pad is used to shape the pins of the semiconductor components to be shaped.

[0015] This invention features a protective plate that is bolted to the upper pressure plate via blind holes, ensuring that the lower surface of the protective plate remains flat. Both the protective plate and the pad are made of high-hardness material, preventing damage to the pins during the pin shaping process.

[0016] The protection board of this utility model has multiple sets, and different thicknesses of protection boards can be selected according to the lead diameter of the component to be shaped. It is suitable for shaping the lead of components of various specifications and has the significance of reducing costs. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of this utility model;

[0020] Figure 3 This is a rear view of the present invention;

[0021] Figure 4 This is a schematic diagram of the adhesive groove of this utility model;

[0022] In the picture:

[0023] 1. Base plate, 2. Pad plate, 3. Pressure plate, 301. Horizontal fixing plate.

[0024] 4. Limiting module, 401. Left bracket, 402. Right bracket, 403. Limiting block

[0025] 5. Protective plate, 501, blind hole. Detailed Implementation

[0026] To make the technical problems, technical solutions and beneficial effects of this utility model clearer, this utility model will be further described in detail with reference to the embodiments and accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model. The technical solutions of this utility model will be described in detail below with reference to the embodiments and accompanying drawings, but the scope of protection is not limited thereto.

[0027] Please see Figure 1-4 This utility model provides a technical solution: a shaping fixture for power module products, used in conjunction with power module components, including a base plate 1, a pad plate 2, a pressure plate 3, and a limiting module 4. The pad plate 2 is bolted to the base plate 1 and fixed above the base plate 1. The limiting module 4 is bolted to the base plate 1 and fixed to one side of the base plate 1. The pressure plate 3 is movably connected to the limiting module 4 and is located above the pad plate 2. A horizontal fixing plate 301 is provided on one side of the pressure plate 3, and a protective plate 5 is provided below the horizontal fixing plate 301. The protective plate 5 is bolted to the horizontal fixing plate 301. The protective plate 5 and the pad plate 2 work together to shape the pins.

[0028] In some embodiments, the limiting module 4 includes a left bracket 401, a right bracket 402, and a limiting block 403. The left bracket 401 and the right bracket 402 are bolted to one side of the base plate 1. The left bracket 401 and the right bracket 402 are T-shaped structures. An extended support block is provided on one side of the front end of the left bracket 401 and the right bracket 402. The extended support block is located above the pad 2. The extended support block of the left bracket 401 and the right bracket 402 is provided with positioning holes. Several threaded holes are provided on the upper part of the left bracket 401 and the right bracket 402. The limiting block 403 is provided on the upper part of the left bracket 401 and the right bracket 402. The limiting block 403 is bolted to the left bracket 401 and the right bracket 402. The distance between the left bracket 401 and the right bracket 402 corresponds to the width of the limiting block 403.

[0029] In some embodiments, the horizontal fixing plate 301 has columnar protrusions on both sides, and the horizontal fixing plate 301 is movably connected to the limiting module 4 through the columnar protrusions. The pressure plate 3 moves in a semi-circular motion around the columnar protrusions.

[0030] In some embodiments, the horizontal fixing plate 301 has symmetrical grooves on both sides, and the left bracket 401 and the right bracket 402 have columnar protrusions on their inner sides. The pressure plate 3 moves in a semi-circular motion around the columnar protrusions.

[0031] In some embodiments, the position of the limiting block 403 can move back and forth, and the limiting block 403 limits the rotation angle of the pressure plate 3.

[0032] In some embodiments, the upper surface of the protection plate 5 is provided with a blind hole 501, the lower surface of the protection plate 5 is smooth, and the distance between the protection plate 5 and the pad 2 in the horizontal state corresponds to the pin height of the power module component to be shaped.

[0033] In some embodiments, the protection board 5 has multiple heights and can be adjusted according to the pin height of the power module components to be shaped. By replacing the protection board, the pins of components with different diameters can be shaped.

[0034] In some embodiments, both the pad 2 and the protective plate 5 are made of high-hardness, corrosion-resistant materials.

[0035] In some embodiments, the product with deformed pins is placed on the pad 2, located below the protective plate 5. The pressure plate 3 is held and slightly pressed downwards to make the protective plate 5 contact the upper surface of the product. The deformed pins are observed to see if they are leveled. All pins are pressed against the upper surface of the pad 2 to indicate that the leveling is qualified and the pin height shaping is completed.

[0036] The above description is a further detailed explanation of the present invention in conjunction with specific preferred embodiments. For those skilled in the art to which the present invention pertains, several simple deductions or substitutions can be made without departing from the present invention, and all such deductions or substitutions should be considered as falling within the scope of patent protection determined by the submitted claims.

Claims

1. A shaping fixture for power module products, used in conjunction with power module components, comprising a base plate, a pad plate, a pressure plate, and a limiting module, wherein the pad plate is bolted to the base plate, the limiting module is bolted to the base plate, the pressure plate is movably connected to the limiting module, a horizontal fixing plate is provided on one side of the pressure plate, a protective plate is provided below the horizontal fixing plate, and the protective plate is bolted to the horizontal fixing plate.

2. A shaping fixture for power module products according to claim 1, characterized in that, The limiting module includes a left support, a right support, and a limiting block. The left and right supports are fixedly connected to the base plate. The left and right supports are T-shaped structures. Each of the left and right supports has an extended support block on one side of its front end. The extended support blocks of the left and right supports have positioning holes. The left and right supports have several threaded holes on their upper sides. The limiting block is located on the upper side of the left and right supports. The limiting block is fixed to the left and right supports by bolting. The distance between the left and right supports corresponds to the width of the limiting block.

3. A shaping fixture for power module products according to claim 2, characterized in that, The horizontal fixing plate has columnar protrusions on both sides, and the horizontal fixing plate is movably connected to the limiting module through the columnar protrusions. The pressure plate moves in a semi-circular motion around the columnar protrusions.

4. A shaping fixture for power module products according to claim 3, characterized in that, The upper surface of the protection board is provided with blind holes, and the distance between the protection board and the pad in the horizontal state corresponds to the pin height of the power module components to be shaped.

5. A shaping fixture for power module products according to claim 4, characterized in that, The protection board has multiple heights and can be adjusted according to the pin height of the power module components to be shaped.

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