Clip coiling and feeding device

Abstract

The application discloses a clip winding feeding device and belongs to the technical field of semiconductor packaging. The device comprises a feeding disc, a frame provided with a jumper wire and wound on the feeding disc in a strip shape, and is characterized in that a fixing frame is arranged above a chip moving path, a plurality of feeding discs are rotatably installed on the surface of the fixing frame, and the feeding disc is installed on at least one side of the surface of the fixing frame. In the technical scheme, a plurality of feeding discs are arranged at one station, different jumper wires can be obtained at the station, the jumper wires can be arranged on the chip when the chip moves, the length of the whole production line is shortened, the work efficiency is improved, and the arrangement of multiple jumper wires or / and multiple layers of jumper wires on the chip is more favorable to be realized. The movement distance of the frame on the surface of the driving frame is detected through the setting of a code disc.

Description

Technical Field

[0001] This utility model relates to the field of semiconductor packaging technology, specifically to a Clip tape feeding device. Background Technology

[0002] In existing chip manufacturing processes, replacing wire bonding with clip packaging can improve production efficiency, reduce manufacturing costs, and solve problems such as cold solder joints and lead neck breakage that occur during wire bonding. In the clip packaging process, one step involves a punching mechanism cutting the frame containing the jumpers to obtain the jumpers. A pick-up mechanism then transfers the cut jumpers onto the chip with adhesive applied, before sending it to subsequent processes for further processing.

[0003] In existing technologies, the frame on which jumpers are arranged is generally plate-shaped, with jumpers formed by processing on the plate-shaped component. Examples include the technical solutions described in Chinese invention patent application number 202311017134.X, filed on August 14, 2023, entitled "A Method for Manufacturing a Patch Jumper for a Circuit Board," and Chinese invention patent application number 202411462375.X, filed on October 18, 2024, entitled "Copper Sheet Bonding Equipment for Punching and Feeding Semiconductor Devices and Its Assembly Method." This method of mounting jumpers on a plate-shaped component is inefficient in subsequent punching processes, making continuous punching difficult.

[0004] To improve work efficiency, a new type of frame design has emerged on the market, which facilitates continuous punching operations. Examples include the technical solutions described in Chinese invention patent application number 202111674902.X, filed on December 31, 2021, entitled "Fully Automatic Transistor CLIP Assembly Line and Method," and Chinese utility model patent application number 202021382135.6, filed on July 14, 2020, entitled "Automatic Clip Installation Machine."

[0005] However, existing technologies, including the aforementioned solutions, generally suffer from the following drawbacks: In chip jumper layouts, multiple jumpers are typically arranged, and different jumpers may even be layered vertically. In existing technologies, only one feeding device and its corresponding picking device are usually provided at each workstation. This approach requires multiple workstations for jumper placement and retrieval, or multiple round trips using a single picking device to complete the jumper placement and retrieval, easily leading to decreased work efficiency and reliability. Utility Model Content

[0006] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a Clip tape feeding device with multiple feeding trays at one workstation, so that different jumpers can be obtained at one workstation, thereby shortening the length of the entire production line, improving work efficiency, and making it more conducive to realizing the arrangement of multiple or / and multiple layers of jumpers for chips.

[0007] The technical solution adopted by this utility model to solve its technical problem is: the Clip tape feeding device includes a feeding tray, and a frame with jumper wires is wound on the feeding tray in a tape form. The feature is that: a fixed frame is provided, the fixed frame is mounted above the chip moving path, and multiple feeding trays are rotatably installed on the surface of the fixed frame, and the feeding trays are installed on at least one side of the surface of the fixed frame.

[0008] Preferably, the fixing frame includes a crossbeam, with mounting frames provided at both ends of the lower part of the crossbeam, and a feeding tray rotatably mounted on both sides of each mounting frame.

[0009] Preferably, a liner tray corresponding to the feeding tray is provided on the surface of the fixed frame, and a feeding motor that rotates the liner tray is provided inside the fixed frame. The frame and the liner that is in contact with it are wound around the feeding tray at the same time. After the liner is released from the feeding tray, it is wound around the surface of the liner tray.

[0010] Preferably, a base, a fixing frame, and a feeding tray on its surface are mounted on top of the base. A punching mechanism for punching the frame to obtain jumpers is also provided on the surface of the base. The punching mechanism corresponds one-to-one with the feeding tray.

[0011] Preferably, the punching mechanism includes a main frame, and a guide frame, a drive frame, and a punching frame are arranged sequentially on the surface of the main frame along the moving direction of the frame.

[0012] Preferably, a drive gear is provided in the drive frame for engaging with the frame edge through a locking hole and driving the frame to move. A drive motor is provided in the main frame, and the drive motor drives the drive gear to rotate through a drive mechanism.

[0013] Preferably, a code disk that rotates synchronously with the drive gear is also provided inside the drive frame. An opening is provided at the edge of the code disk, and the edge of the code disk is locked between the signal transmitting end and the signal receiving end of the photoelectric sensor.

[0014] Preferably, a punching cylinder is provided in the main frame, the piston rod of the punching cylinder is vertically upward, and a punching plate is provided at the end of the piston rod. The punching plate passes through the punching frame and reciprocates in the punching hole on the surface of the punching frame.

[0015] Compared with the prior art, the beneficial effects of this utility model are: In the technical solution of this application, multiple feeding trays are set at one workstation, so that different jumpers can be obtained at one workstation. When the chip moves, multiple different jumpers can be arranged for the chip at this workstation, thereby shortening the length of the entire production line, improving work efficiency, and making it more conducive to the arrangement of multiple or / and multiple layers of jumpers for the chip.

[0016] In the technical solution of this application, by setting an encoder, when the encoder rotates, the photoelectric sensor is continuously triggered. By counting the photoelectric sensor, the rotation angle of the encoder is detected, thereby realizing the detection of the rotation angle of the two drive toothed discs, and further realizing the detection of the moving distance of the frame on the surface of the drive frame. Attached Figure Description

[0017] Figure 1 This is an isometric view of the Clip tape feeder.

[0018] Figure 2 This is a front view of the Clip tape feeder.

[0019] Figure 3 for Figure 2 The right view.

[0020] Figure 4 for Figure 3 Sectional view along line AA.

[0021] Figure 5 This is an isometric view of the punching mechanism of the Clip tape feeding device.

[0022] Figure 6 The clip tape feeding device's punching mechanism is different from... Figure 5 Another isometric view.

[0023] Figure 7 Front view of the clip tape feeding device punching mechanism.

[0024] Figure 8 for Figure 7 Sectional view along the BB direction.

[0025] The components are as follows: 1. Feeding tray; 2. Mounting frame; 3. Crossbeam; 4. Base; 5. Frame; 6. Liner tray; 7. Liner; 8. Punching mechanism; 9. Feeding motor; 10. Collection box; 11. Punching hole; 12. Punching frame; 13. Drive top plate; 14. Drive mechanism; 15. Guide frame; 16. Guide plate; 17. Base plate; 18. Drive gear plate; 19. Punching cylinder; 20. Top plate; 21. Encoder; 22. Photoelectric sensor; 23. Drive motor; 24. Punching plate; 25. Drive base plate. Detailed Implementation

[0026] Figures 1-8 This is the preferred embodiment of the present invention, which is described below in conjunction with the appendix. Figures 1-8 The present invention will be further described below.

[0027] like Figures 1-3 As shown, a Clip tape feeding device (hereinafter referred to as the feeding device) includes a base 4, a horizontal beam 3 is arranged above the base 4, and vertical beams (not shown in the figure) are arranged on both sides of the base 4. The bottom of the vertical beams is fixed to the edge of the base 4, and the top of the vertical beams are located on both sides of the horizontal beam 3 and fixed to the two ends of the horizontal beam 3 respectively, so that the horizontal beam 3 is erected above the base 4.

[0028] At each end of the lower part of the crossbeam 3, a mounting bracket 2 is provided. On the front and rear sides of each mounting bracket 2, a feeding tray 1 is provided. The feeding tray 1 is disc-shaped and rotatably mounted on the corresponding end face of its mounting bracket 2 via a pivot at its center. Below each feeding tray 1, a punching mechanism 8 is provided. All punching mechanisms 8 are fixed to the surface of the base 4.

[0029] In this feeding device, the frame 5 with jumper wires is wound in the slot in the middle of the feeding tray 1 in a continuous strip form. Also wound in the feeding tray 1 at the same time as the frame 5 is a liner 7 of the same length and width as the frame 5. The liner 7 serves as an isolation layer.

[0030] Combination Figure 4 A feeding motor 9, corresponding to a feeding disc 1, is provided at the bottom inner side of the mounting frame 2. A liner disc 6, corresponding to a feeding motor 9, is provided at the bottom outer surface of the mounting frame 2. The liner disc 6 is also rotatably mounted on the surface of the mounting frame 2 via its shaft and is located below the side of the corresponding feeding disc 1. The shaft of the liner disc 6 passes through the mounting frame 2 and extends to the inner side of the mounting frame 2, located below the corresponding feeding motor 9. The motor shaft of the feeding motor 9 is connected to the shaft of the liner disc 6 located below it through a known transmission method (such as a synchronous belt mechanism), thereby driving the liner disc 6 to rotate.

[0031] After the frame 5 and the attached liner 7 are released from the feed tray 1, the liner 7 winds around the liner tray 6, and the frame 5 extends downward into the corresponding punching mechanism 8. As the liner tray 6 rotates, the liner 7 is continuously wound around its surface and collected. During the continuous winding and collection of the liner 7, the frame 5 is also continuously fed into the punching mechanism 8, where a punching operation is performed to obtain jumpers. Then, a pickup mechanism (not shown in the figure) arranged on the surface of the base 4 transfers the punched jumpers to the corresponding position on the chip surface and sends them to the next process.

[0032] like Figures 5-7As shown, the punching mechanism 8 includes a main frame, which includes a top plate 20 and a bottom plate 17 spaced apart vertically. The top plate 20 and the bottom plate 17 are fixed together by a fixing plate and a support rod. On the surface of the main frame, a guide frame 15, a drive frame, and a punching frame 12 are arranged sequentially along the moving direction of the frame 5. A guide plate 16 is also provided at the end of the guide frame 15. After the frame 5 is released from the feed tray 1, it is guided to the surface of the guide frame 15 by the action of the guide plate 16, and punched on the surface of the punching frame 12 under the drive of the drive frame to obtain a jumper wire.

[0033] The drive frame includes a drive base plate 25 that is fixed to the surface of the top plate 20. A vertical plate is fixed to each end of the drive base plate 25, and a drive top plate 13 is horizontally arranged on the surface of the two vertical plates. The frame 5 passes over the surface of the drive top plate 13. Two drive gear discs 18 are arranged between the drive top plate 13 and the drive base plate 25, and the two drive gear discs 18 are coaxially fixed. Two locking plates are also spaced apart on the surface of the drive top plate 13, forming locking grooves between the two locking plates and the surface of the drive top plate 13. The two drive gear discs 18 are located below the two locking plates. When the frame 5 passes over the surface of the drive top plate 13, it passes between the locking plates and the drive top plate 13, and the teeth at the edges of the two drive gear discs 18 engage in the tooth holes at the edges of the frame 5, causing the frame 5 to move.

[0034] A drive motor 23 is arranged on the lower surface of the top plate 20. The motor shaft of the drive motor 23 extends to the outside of the main frame and is connected to the drive mechanism 14. The drive mechanism 14 extends obliquely upward to the drive frame and is connected to the rotating shafts of two drive gear discs 18. The drive motor 23 and the two drive gear discs 18 driven by the drive mechanism 14 rotate. The drive mechanism 14 is also implemented by a known transmission method (such as a synchronous belt mechanism).

[0035] Inside the drive frame, a code disk 21 is also provided, which is coaxially fixed and rotates synchronously with the two drive gear disks 18. A notch is provided at the edge of the code disk 21. A photoelectric sensor 22 is provided on one side of the code disk 21. The code disk 21 is clamped between the transmitting end and the receiving end of the photoelectric sensor 22. When the code disk 21 rotates, it continuously triggers the photoelectric sensor 22. By counting the photoelectric sensor 22, the rotation angle of the code disk 21 is detected, thereby realizing the detection of the rotation angle of the two drive gear disks 18. Furthermore, the movement distance of the frame 5 on the surface of the drive frame is detected.

[0036] Combination Figure 8A punching cylinder 19 is also provided on the surface of the base plate 17. The piston rod of the punching cylinder 19 faces upward directly towards the punching frame 12. A set of punching holes 11 are spaced apart on the surface of the punching frame 12. The punching holes 11 penetrate downward through the punching frame 12. A punching plate 24 is provided in each of the two punching holes 11. The top of the two punching plates 24 is a punch. The bottom of the two punching plates 24 is connected to the top of the piston rod of the punching cylinder 19. When the piston rod of the punching cylinder 19 moves, it drives the two punching plates 24 to move back and forth in the vertical direction. Through the punch at the top, the frame 5 located on the surface of the punching frame 12 is punched, thereby obtaining the jumper wire.

[0037] A collection box 10 is also provided at the output end of the punching frame 12. The waste material obtained from punching gradually falls into the collection box 10 for collection as the frame 5 moves.

[0038] The specific working process and working principle are as follows: After the frame 5 and the liner 7 attached to it are released from the feed tray 1, the liner 7 is wound around the liner tray 6, and the frame 5 extends downward into the corresponding punching mechanism 8. As the liner tray 6 rotates, the liner 7 is continuously wound around its surface and collected, and as the liner 7 is continuously wound and collected, the frame 5 is also continuously fed into the punching mechanism 8.

[0039] After the frame 5 lands on the punching mechanism 8, it is guided to the surface of the guide frame 15 by the guide plate 16, and then enters the drive frame. Inside the drive frame, the drive motor 23 rotates and drives the two drive gear disks 18 to rotate through the drive mechanism 14. As the drive gear disks 18 rotate, they drive the frame 5 to move. At the same time, the encoder 21 detects the rotation angle of the drive gear disks 18 to detect the travel distance of the frame 5.

[0040] After frame 5 passes the drive frame and enters the surface of the punching frame 12, the punching cylinder 19 continuously punches frame 5 to obtain jumpers. Then, the pick-up mechanism transfers the jumpers to the corresponding positions on the chip surface. The waste material obtained from punching gradually falls into the collection box 10 for collection as frame 5 moves.

[0041] In this feeding device, four feeding trays 1 and four corresponding punching mechanisms 8 are arranged through a crossbeam 3. Four different jumper frames 5 can be arranged through the four feeding trays 1. By arranging the punching holes 11 on the surface of the punching mechanism 8 (such as direction and size), four different jumpers can be obtained.

[0042] However, when the chip passes over the surface of the base 4 through its conveying mechanism, by controlling the timing of the picking action of the picking mechanism, four different jumpers can be arranged for the chip at one station (one crossbeam 3), thereby shortening the length of the entire production line, improving work efficiency, and making it more conducive to the arrangement of multiple or / and multiple layers of jumpers for the chip.

[0043] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its technical solution shall still fall within the protection scope of this utility model.

Claims

1. A clip tape feeding device, comprising a feeding tray (1), and a frame (5) with jumper wires arranged on it wound in a tape form around the feeding tray (1), characterized in that: A fixed frame is provided, which is mounted above the chip movement path. Multiple feed trays (1) are rotatably mounted on the surface of the fixed frame, and the feed trays (1) are mounted on at least one side of the fixed frame.

2. The Clip tape feeding device according to claim 1, characterized in that: The fixed frame includes a crossbeam (3), and mounting frames (2) are respectively provided at the lower ends of the crossbeam (3). A feeding plate (1) is rotatably provided on both sides of the mounting frame (2) at each end.

3. The Clip tape feeding device according to claim 1 or 2, characterized in that: A liner disc (6) corresponding to the feeding disc (1) is provided on the surface of the fixed frame. A feeding motor (9) that rotates the liner disc (6) is provided inside the fixed frame. The frame (5) and the liner (7) that is attached to it are wound on the feeding disc (1) at the same time. After the liner (7) is released from the feeding disc (1), it is wound on the surface of the liner disc (6).

4. The Clip tape feeding device according to claim 1, characterized in that: A base (4) is provided, and a fixed frame and a feeding tray (1) on its surface are mounted on the base (4). A punching mechanism (8) for punching the frame (5) to obtain jumper wires is also provided on the surface of the base (4). The punching mechanism (8) corresponds one-to-one with the feeding tray (1).

5. The Clip tape feeding device according to claim 4, characterized in that: The punching mechanism (8) includes a main frame, and a guide frame (15), a drive frame and a punching frame (12) are arranged sequentially on the surface of the main frame along the moving direction of the frame (5).

6. The Clip tape feeding device according to claim 5, characterized in that: A drive gear (18) is provided in the drive frame for engaging with the edge of the frame (5) and driving the frame (5) to move. A drive motor (23) is provided in the main frame. The drive motor (23) drives the drive gear (18) to rotate through the drive mechanism (14).

7. The Clip tape feeding device according to claim 6, characterized in that: Inside the drive frame, there is also a code disk (21) that rotates synchronously with the drive gear disk (18). An opening is provided at the edge of the code disk (21), and the edge of the code disk (21) is stuck between the signal transmitting end and the signal receiving end of the photoelectric sensor (22).

8. The Clip tape feeding device according to claim 5, characterized in that: A punching cylinder (19) is provided in the main frame. The piston rod of the punching cylinder (19) is vertically upward, and a punching plate (24) is provided at the end of the piston rod. The punching plate (24) passes through the punching frame (12) and reciprocates in the punching hole (11) on the surface of the punching frame (12).

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