Electromagnetic shielding packaging structure

Abstract

The utility model relates to the technical field of semiconductor packaging, and discloses an electromagnetic shielding packaging structure, one side of a clamping block is attached and connected with an extension plate, a workbench is provided with a sliding groove, a supporting rod is connected in the sliding groove in a sliding mode, a limiting column is fixedly connected in the workbench, one side of the supporting rod is fixedly connected with a connecting rod, and the connecting rod is fixedly connected with a clamping block. A first air cylinder is fixedly connected to the workbench, a first hydraulic rod is fixedly connected to the output end of the first air cylinder, and the side, away from the first air cylinder, of the first hydraulic rod is fixedly connected to the connecting rod. According to the utility model, the bottom plate is placed in the middle of the connecting frame, the two groups of knobs are respectively rotated, and the two groups of knobs both drive the screw rod to rotate, so that the screw rod drives the clamping block to move towards the inner side, and the clamping block moves towards the inner side to clamp the extension plate, so that a chip is more convenient to clamp during packaging, and the stability of the chip during packaging can be effectively improved; therefore, the convenience of chip packaging is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of semiconductor packaging, in particular to a packaging structure with electromagnetic shielding. Background Art

[0002] With the rapid development of electronic technology, electronic devices and systems are becoming increasingly complex, and the requirements for electromagnetic compatibility and electromagnetic shielding are also getting higher and higher. In modern society, electronic devices are almost everywhere, from smartphones, laptops to base stations, medical devices, etc. They are constantly generating and receiving electromagnetic signals. However, these electromagnetic signals may be subject to various interferences from inside or outside during transmission, resulting in a decline in signal quality, damage to device performance, or even system collapse.

[0003] The existing technology has the following deficiencies: traditional electronic chips are not easy to clamp and fix during packaging, it is not easy to adjust the position of the packaging device during traditional electronic chip packaging, and the electromagnetic shielding performance of traditional electronic chip packaging structures is relatively poor. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the shortcomings existing in the prior art, and to propose a packaging structure with electromagnetic shielding.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme: a packaging structure with electromagnetic shielding, including a workbench, a connecting frame is fixedly connected to the workbench, a lead screw is threadedly connected to one side of the connecting frame, a knob is fixedly connected to one side of the lead screw, a clamping block is fixedly connected to the other side of the lead screw, an extension plate is adhesively connected to one side of the clamping block, a chute is provided on the workbench, a support rod is slidably connected in the chute, a limiting column is fixedly connected inside the workbench, a connecting rod is fixedly connected to one side of the support rod, a cylinder one is fixedly connected to the workbench, and a hydraulic rod one is fixedly connected to the output end of the cylinder one, and the other side of the hydraulic rod one away from the cylinder one is fixedly connected to the connecting rod.

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

[0007] The limiting column penetrates through one side of the support rod arranged in the chute, and the support rod is slidably connected to the limiting column. The chute, the support rod, and the limiting column are all provided in two groups and are symmetrically arranged.

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

[0009] The lead screw, the knob, and the clamping block are all provided in two groups and are symmetrically arranged. The lower surface of the workbench is fixedly connected with support legs, and there are four support legs arranged around the lower surface of the workbench.

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

[0011] One side of the extension plate is fixedly connected with a bottom plate, a protective shell is fixedly connected to the bottom plate, a limiting groove is arranged on the protective shell, a chip is fixedly connected to the bottom plate, a through hole is arranged on the bottom plate, and one side of the chip is fixedly connected with a pin, and the pin is arranged in the through hole.

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

[0013] The extension plate is arranged in the limiting groove, the chip is arranged in the protective shell, there are several through holes and pins, and there are two groups of limiting grooves and extension plates which are symmetrically arranged.

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

[0015] The other side of the support rod is fixedly connected with a connecting plate, a second cylinder is fixedly connected to the connecting plate, the output end of the second cylinder is fixedly connected with a second hydraulic rod, and the side of the second hydraulic rod away from the second cylinder is fixedly connected with a pressing plate, and the second hydraulic rod penetrates and is slidably connected to the middle of the connecting plate.

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

[0017] The protective shell is composed of a base layer and an electromagnetic shielding layer. The lower surface of the base layer is fixedly connected with the electromagnetic shielding layer. The base layer is composed of a polyimide material combination, and the electromagnetic shielding layer is composed of a mixture of a conductive polymer and a metal thin film material.

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

[0019] The bottom plate is composed of a conductive lead layer and a protective layer. The conductive lead layer is composed of a conductive rubber material combination, and the protective layer is composed of a polyurethane material combination.

[0020] The utility model has the following beneficial effects:

[0021] 1. In the utility model, by placing the bottom plate in the middle of the connection frame and respectively rotating two groups of knobs, both groups of knobs drive the screw rods to rotate, so that the screw rods drive the clamping blocks to move inwards, and the clamping blocks move inwards to clamp the extension plate, making it more convenient to clamp the chip during encapsulation, effectively improving the stability during chip encapsulation, and thus improving the convenience during chip encapsulation.

[0022] 2. In the present utility model, by providing the first cylinder, the connecting rod drives the support rod to move along the sliding groove and the limiting post to one side. The support rod drives the connecting plate to move to one side, and the connecting plate drives the second cylinder, the second hydraulic rod, and the pressing plate to move to one side, making it more convenient to move the position of the encapsulation device when encapsulating the chip, and effectively improving the flexibility of the encapsulation device.

[0023] 3. In the present utility model, since the electromagnetic shielding layer is composed of a conductive polymer and a metal thin film material, after the chip is encapsulated, it can preliminarily reflect and absorb electromagnetic waves, reducing the amount of electromagnetic waves entering the interior of the encapsulation structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 Schematic perspective view of an electromagnetic shielding encapsulation structure proposed by the present utility model Figure 1 ;

[0025] Figure 2 is Figure 1 the enlarged view of part A in

[0026] Figure 3 Schematic perspective view of an electromagnetic shielding encapsulation structure proposed by the present utility model Figure 2 ;

[0027] Figure 4 Exploded view of the partial structure of an electromagnetic shielding encapsulation structure proposed by the present utility model;

[0028] Figure 5 Schematic diagram of the structure of the protective housing proposed by the present utility model;

[0029] Figure 6 Schematic diagram of the structure of the bottom plate proposed by the present utility model.

[0030] Legend:

[0031] 1. Workbench; 2. Support leg; 3. Sliding groove; 4. Support rod; 5. Limiting post; 6. Connecting rod; 7. First cylinder; 8. First hydraulic rod; 9. Connecting plate; 10. Second cylinder; 11. Second hydraulic rod; 12. Pressing plate; 13. Connecting frame; 14. Perforation; 15. Screw rod; 16. Knob; 17. Clamping block; 18. Protective housing; 19. Chip; 20. Pin; 21. Bottom plate; 22. Extension plate; 23. Limiting groove; 24. Base layer; 25. Electromagnetic shielding layer; 26. Conductive lead layer; 27. Protective layer. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0033] Referring to Figures 1 - 6 , an embodiment provided by the present invention: an electromagnetic shielding packaging structure, including a workbench 1, a connection frame 13 is fixedly connected to the workbench 1, a lead screw 15 is threadedly connected to one side of the connection frame 13, a knob 16 is fixedly connected to one side of the lead screw 15, a clamping block 17 is fixedly connected to the other side of the lead screw 15, an extension plate 22 is attached to one side of the clamping block 17, a chute 3 is provided on the workbench 1, a support rod 4 is slidably connected in the chute 3, a limiting column 5 is fixedly connected inside the workbench 1, a connecting rod 6 is fixedly connected to one side of the support rod 4, a cylinder 7 is fixedly connected to the workbench 1, an output end of the cylinder 7 is fixedly connected to a hydraulic rod 8, the hydraulic rod 8 is fixedly connected to the connecting rod 6 on the side away from the cylinder 7, the limiting column 5 penetrates through the support rod 4 and is arranged on one side inside the chute 3, the support rod 4 is slidably connected to the limiting column 5, the chute 3, the support rod 4, and the limiting column 5 are all provided in two groups and are symmetrically arranged, the lead screw 15, the knob 16, and the clamping block 17 are all provided in two groups and are symmetrically arranged, four support legs 2 are fixedly connected to the lower surface of the workbench 1 and are arranged around the lower surface of the workbench 1. Place the bottom plate 21 in the middle of the connection frame 13, rotate the two knobs 16 respectively, the two knobs 16 both drive the lead screw 15 to rotate, the lead screw 15 rotates and moves inward along the connection frame 13, the lead screw 15 drives the clamping block 17 to move inward, and the clamping block 17 moves inward to clamp the extension plate 22, making it more convenient to clamp the chip 19 during packaging, effectively improving the stability of the chip 19 during packaging, and thus improving the convenience of the chip 19 during packaging.

[0034] One side of the extension plate 22 is fixedly connected to the bottom plate 21. A protective housing 18 is fixedly connected to the bottom plate 21. A limiting groove 23 is provided on the protective housing 18. A chip 19 is fixedly connected to the bottom plate 21. A perforation 14 is provided on the bottom plate 21. One side of the chip 19 is fixedly connected to a lead 20. The lead 20 is arranged in the perforation 14. The extension plate 22 is arranged in the limiting groove 23. The chip 19 is arranged in the protective housing 18. There are several perforations 14 and leads 20. There are two groups of limiting grooves 23 and extension plates 22, which are symmetrically arranged. The other side of the support rod 4 is fixedly connected to a connecting plate 9. A cylinder two 10 is fixedly connected to the connecting plate 9. The output end of the cylinder two 10 is fixedly connected to a hydraulic rod two 11. The side of the hydraulic rod two 11 away from the cylinder two 10 is fixedly connected to a pressing plate 12. The hydraulic rod two 11 penetrates and is slidably connected to the middle of the connecting plate 9. The protective housing 18 is composed of a base layer 24 and an electromagnetic shielding layer 25. The lower surface of the base layer 24 is fixedly connected to the electromagnetic shielding layer 25. The base layer 24 is composed of a polyimide material combination. The electromagnetic shielding layer 25 is composed of a mixture of a conductive polymer and a metal thin film material. The bottom plate 21 is composed of a conductive lead layer 26 and a protective layer 27. The conductive lead layer 26 is composed of a conductive rubber material combination. The protective layer 27 is composed of a polyurethane material combination. Since the electromagnetic shielding layer 25 is composed of a mixture of a conductive polymer and a metal thin film material, after the chip 19 is encapsulated, it can initially reflect and absorb electromagnetic waves, reducing the amount of electromagnetic waves entering the interior of the encapsulation structure. Since the conductive lead layer 26 is composed of a conductive rubber material combination, after the chip 19 is encapsulated, it can ensure prevention of electromagnetic leakage and may be used to convert electromagnetic waves into electrical energy or other forms of energy for utilization. By setting the cylinder one 7, the output end of the cylinder one 7 drives the hydraulic rod one 8 to move to one side. The hydraulic rod one 8 drives the connecting rod 6 to move to one side. The connecting rod 6 drives the support rod 4 to move along the sliding groove 3 and the limiting column 5 to one side. The support rod 4 drives the connecting plate 9 to move to one side. The connecting plate 9 drives the cylinder two 10, the hydraulic rod two 11, and the pressing plate 12 to move to one side, making it more convenient to move the position of the encapsulation device when encapsulating the chip 19, and effectively improving the flexibility of the encapsulation device.

[0035] Working principle: When encapsulating, first place the bottom plate 21 in the middle of the connection frame 13. Rotate the two groups of knobs 16 respectively. The two groups of knobs 16 drive the lead screws 15 to rotate. The lead screws 15 rotate and move inward along the connection frame 13. The lead screws 15 drive the clamping blocks 17 to move inward. The clamping blocks 17 move inward to clamp the extension plate 22, making it more convenient to clamp the chip 19 during encapsulation, effectively improving the stability of the chip 19 during encapsulation, and thus improving the convenience of the chip 19 during encapsulation. Fix the chip 19 on the bottom plate 21, and the pins 20 pass through the through holes 14. Clamp the protective shell 18 on the bottom plate 21 and fix it so that the extension plate 22 is arranged in the limit groove 23. By setting the first cylinder 7, the output end of the first cylinder 7 drives the first hydraulic rod 8 to move to one side. The first hydraulic rod 8 drives the connecting rod 6 to move to one side. The connecting rod 6 drives the support rod 4 to move to one side along the sliding groove 3 and the limit post 5. The support rod 4 drives the connecting plate 9 to move to one side. The connecting plate 9 drives the second cylinder 10, the second hydraulic rod 11, and the pressing plate 12 to move to one side, making it more convenient to move the position of the encapsulation device when encapsulating the chip 19, effectively improving the flexibility of the encapsulation device. When the pressing plate 12 moves directly above the protective shell 18, set the second cylinder 10. The output end of the second cylinder 10 drives the second hydraulic rod 11 to move downward. The second hydraulic rod 11 drives the pressing plate 12 to move downward. The pressing plate 12 moves downward to press the protective shell 18, making the protective shell 18 and the bottom plate 21 bond more perfectly. The base layer 24 is composed of polyimide materials, ensuring the overall stability and reliability of the encapsulation structure after the chip 19 is encapsulated. The electromagnetic shielding layer 25 is composed of a mixture of conductive polymers and metal film materials, enabling the chip 19 to reflect and absorb electromagnetic waves preliminarily after encapsulation, reducing the amount of electromagnetic waves entering the interior of the encapsulation structure. The conductive lead layer 26 is composed of conductive rubber materials, ensuring that electromagnetic leakage is prevented after the chip 19 is encapsulated and possibly used to convert electromagnetic waves into electrical energy or other forms of energy for utilization. The protective layer 27 is composed of polyurethane materials, protecting the internal electromagnetic shielding structure from the influence of the external environment after the chip 19 is encapsulated and extending the service life.

[0036] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An electromagnetic shielding packaging structure, comprising a workbench (1), characterized in that: The workbench (1) is fixedly connected to a connecting frame (13), one side of the connecting frame (13) is threadedly connected to a screw rod (15), one side of the screw rod (15) is fixedly connected to a knob (16), the other side of the screw rod (15) is fixedly connected to a clamping block (17), one side of the clamping block (17) is fittedly connected to an extension plate (22), a slide groove (3) is provided on the workbench (1), a support rod (4) is slidably connected in the slide groove (3), a limiting column (5) is fixedly connected in the workbench (1), one side of the support rod (4) is fixedly connected to a connecting rod (6), a cylinder (7) is fixedly connected to the workbench (1), the output end of the cylinder (7) is fixedly connected to a hydraulic rod (8), and the side of the hydraulic rod (8) away from the cylinder (7) is fixedly connected to the connecting rod (6).

2. The electromagnetic shielding packaging structure according to claim 1, characterized in that: The limiting column (5) passes through the support rod (4) and is arranged on one side of the slide groove (3); the support rod (4) is slidably connected to the limiting column (5); and the slide groove (3), the support rod (4) and the limiting column (5) are each provided with two groups and are symmetrically arranged.

3. The electromagnetic shielding packaging structure according to claim 1, characterized in that: The screw rod (15), the knob (16), and the clamping block (17) are each provided in two groups and are symmetrically arranged. The lower surface of the workbench (1) is fixedly connected with support legs (2). The support legs (2) are provided in four groups and are arranged around the lower surface of the workbench (1).

4. The electromagnetic shielding packaging structure according to claim 1, characterized in that: One side of the extension plate (22) is fixedly connected to a base plate (21), the base plate (21) is fixedly connected to a protective shell (18), the protective shell (18) is provided with a limiting groove (23), the base plate (21) is fixedly connected to the chip (19), the base plate (21) is provided with a through hole (14), one side of the chip (19) is fixedly connected to a pin (20), and the pin (20) is arranged in the through hole (14).

5. The electromagnetic shielding packaging structure according to claim 4, characterized in that: The extension plate (22) is arranged in the limiting groove (23), the chip (19) is arranged in the protective shell (18), a plurality of the through holes (14) and the pins (20) are provided, and two groups of the limiting groove (23) and the extension plate (22) are provided and are symmetrically arranged.

6. The electromagnetic shielding packaging structure according to claim 1, characterized in that: The other side of the support rod (4) is fixedly connected to a connecting plate (9), a second cylinder (10) is fixedly connected to the connecting plate (9), an output end of the second cylinder (10) is fixedly connected to a second hydraulic rod (11), a side of the second hydraulic rod (11) away from the second cylinder (10) is fixedly connected to a pressing plate (12), and the second hydraulic rod (11) passes through and is slidably connected to the middle of the connecting plate (9).

7. The electromagnetic shielding packaging structure according to claim 4, characterized in that: The protective shell (18) is composed of a base layer (24) and an electromagnetic shielding layer (25); the electromagnetic shielding layer (25) is fixedly connected to the lower surface of the base layer (24); the base layer (24) is composed of a combination of polyimide materials; and the electromagnetic shielding layer (25) is composed of a mixture of conductive polymer and metal film material.

8. The electromagnetic shielding packaging structure according to claim 4, characterized in that: The bottom plate (21) is composed of a conductive lead layer (26) and a protective layer (27); the conductive lead layer (26) is composed of a conductive rubber material, and the protective layer (27) is composed of a polyurethane material.

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