A semiconductor packaging apparatus

Abstract

This application relates to the field of semiconductor packaging equipment technology, and in particular to a semiconductor packaging device, including a frame and a first feeding unit and a second feeding unit disposed on the frame. Both the first and second feeding units include a roll mounting base, a main shaft, an adaptive roll mechanism, an automatic material changing mechanism, and a roll detection sensor. The roll mounting base is fixedly disposed on the frame, and the main shaft is rotatably disposed within the roll mounting base. A drive motor is fixedly connected to one end of the main shaft, and the adaptive roll mechanism is fixedly disposed at the other end of the main shaft for carrying the roll. The automatic material changing mechanism is fixedly disposed on one side of the roll mounting base and fixedly connected to the frame. The roll detection sensor is disposed on one side of the adaptive roll mechanism, thereby improving the working efficiency of the device.

Description

Technical Field

[0001] This application relates to the field of semiconductor packaging equipment technology, and in particular to a semiconductor packaging device. Background Technology

[0002] Semiconductor packaging refers to the process of processing tested wafers into individual chips according to product models and functional requirements. It mainly includes steps such as wafer back thinning, wafer dicing, wafer mounting, wire bonding, molding, laser printing, lead trimming, and finished product testing to complete the semiconductor packaging operation.

[0003] In existing devices, carrier tapes are used to orderly carry and isolate individual electronic components. However, the specifications of the carrier tape reels in existing devices are fixed, and materials need to be changed frequently during mass production, resulting in low equipment operating efficiency. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the purpose of this application is to provide a semiconductor packaging device that solves the problem of low equipment operating efficiency caused by the fixed specifications of carrier tape reels and the need for frequent material changes during mass production.

[0005] The above-mentioned objective of this application is achieved through the following technical solution: a semiconductor packaging device, including a frame and a first feeding unit and a second feeding unit disposed on the frame. Both the first feeding unit and the second feeding unit include a roll mounting base, a main shaft, an adaptive roll mechanism, an automatic material changing mechanism, and a roll detection sensor. The roll mounting base is fixedly disposed on the frame, and the main shaft is rotatably disposed within the roll mounting base. One end of the main shaft is fixedly connected to a drive motor, which is fixedly mounted on one side of the roll mounting base. The adaptive roll mechanism is fixedly disposed on the other end of the main shaft for carrying the roll. The automatic material changing mechanism is fixedly disposed on one side of the roll mounting base and fixedly connected to the frame. The roll detection sensor is disposed on one side of the adaptive roll mechanism.

[0006] Furthermore, the adaptive reel mechanism includes a fixed clamp, a movable clamp, and a telescopic adjustment component. The fixed clamp and the movable clamp are respectively fixedly installed on the main shaft and are arranged opposite to each other. The telescopic adjustment component is arranged between the movable clamp and the reel mounting base.

[0007] Furthermore, the telescopic adjustment assembly includes an adjustment screw, a guide rail, and an adjustment motor. One end of the adjustment screw is rotatably connected to the movable clamp, and the other end of the adjustment screw is drively connected to the adjustment motor. The guide rail is provided with the movable clamp slidably connected to the guide rail. The adjustment motor is fixed on the reel mounting base, and its output shaft is coaxially arranged with the adjustment screw.

[0008] Furthermore, the automatic material changing mechanism includes a spare material roll support, a transfer arm, and a receiving platform. The spare material roll support is fixedly installed on the frame, and the transfer arm and the receiving platform are respectively located between the spare material roll support and the adaptive reel mechanism.

[0009] Furthermore, the transfer arm includes a rotating base, a first swing arm, a second swing arm, and a gripper assembly. The rotating base is fixed to the frame, one end of the first swing arm is hinged to the rotating base, the other end of the first swing arm is hinged to one end of the second swing arm, and the other end of the second swing arm is fixedly connected to the gripper assembly.

[0010] Furthermore, the receiving platform includes a fixed base, a lower pressure plate, an upper pressure plate, and a pressing drive component. The fixed base is fixed to the frame, the lower pressure plate is fixed to the fixed base, the upper pressure plate is movable up and down above the lower pressure plate, and the output end of the pressing drive component is fixedly connected to the upper pressure plate.

[0011] Furthermore, the reel mounting base is also equipped with a discharge push plate, which is slidably connected to the reel mounting base via a push plate cylinder.

[0012] Furthermore, a guide wheel assembly is also provided on the frame, which includes multiple guide wheels that are rotatably connected to the frame.

[0013] In summary, this application includes at least one of the following beneficial technical effects: 1. When using the device, the roll mounting base is an L-shaped plate structure, fixed to the frame with bolts. A horizontal shaft hole is provided on the roll mounting base. The main shaft rotatably passes through the shaft hole via bearings. One end of the main shaft is connected to the output end of the drive motor via a coupling. The drive motor is fixed to the side of the roll mounting base. The fixed clamp is disc-shaped, with its center fixedly connected to the end of the main shaft via a keyway, rotating synchronously with the main shaft. A first friction plate is attached to the surface of the fixed clamp facing the movable clamp to increase the friction with the end face of the material roll. The movable clamp is positioned opposite the fixed clamp, and a second friction plate is attached to the surface of the movable clamp facing the fixed clamp. The movable clamp is moved by the telescopic adjustment assembly, thereby adjusting the distance between the fixed and movable clamps to accommodate material rolls of different widths. Furthermore, the material roll detection sensor can be a photoelectric sensor or an ultrasonic sensor, which is fixed above the roll mounting base by a sensor bracket, with its sensing end facing the radial surface of the material roll, to detect the remaining thickness of the material roll, thereby improving the working efficiency of the device.

[0014] 2. When using the device, one end of the adjusting screw is rotatably connected to the center of the movable chuck via a thrust bearing, and the other end of the adjusting screw is connected to the output shaft of the adjusting motor via a coupling. The bottom of the movable chuck is slidably connected to the guide rail via a slider, and the guide rail is fixed to the roll mounting base along the axial direction of the main shaft. By driving the adjusting screw to rotate through the adjusting motor, the movable chuck moves along the guide rail, thereby adjusting the distance between the fixed chuck and the movable chuck to accommodate rolls of different widths, thus improving the working efficiency of the device. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure in the embodiment; Figure 2 This is a schematic diagram of the structure of a single feeding unit in the embodiment; Figure 3 This is a schematic diagram of the structure of a single feeding unit in the embodiment from another perspective.

[0016] Reference numerals: 1. Frame; 2. First feeding unit; 3. Second feeding unit; 4. Roller mounting seat; 41. Unloading push plate; 42. Push plate cylinder; 5. Main shaft; 51. Drive motor; 6. Adaptive roller mechanism; 61. Fixed clamp; 62. Movable clamp; 63. Telescopic adjustment assembly; 631. Adjusting screw; 632. Guide rail; 633. Adjusting motor; 7. Automatic material changing mechanism; 71. Roll support; 72. Transfer arm; 721. Rotating base; 722. First swing arm; 723. Second swing arm; 724. Gripper assembly; 73. Receiving platform; 731. Fixed seat; 732. Lower pressure plate; 733. Upper pressure plate; 734. Pressing drive component; 8. Roll detection sensor; 9. Guide wheel; 10. Roll. Detailed Implementation

[0017] The present application will be further described in detail below with reference to the accompanying drawings.

[0018] Example, refer to Figures 1-3A semiconductor packaging device includes a frame 1 and a first feeding unit 2 and a second feeding unit 3 disposed on the frame 1. The first feeding unit 2 and the second feeding unit 3 each include a roll mounting base 4, a main shaft 5, an adaptive roll mechanism 6, an automatic material changing mechanism 7, and a roll 10 detection sensor 8. The roll mounting base 4 is fixedly disposed on the frame 1. The main shaft 5 is rotatably disposed within the roll mounting base 4. One end of the main shaft 5 is fixedly connected to a drive motor 51, which is fixedly mounted on one side of the roll mounting base 4. The adaptive roll mechanism 6 is fixedly disposed on the other end of the main shaft 5 for carrying the roll 10. The automatic material changing mechanism 7 is fixedly disposed on one side of the roll mounting base 4 and fixedly connected to the frame 1. The roll 10 detection sensor 8 is disposed on one side of the adaptive roll mechanism 6. The adaptive reel mechanism 6 includes a fixed clamp 61, a movable clamp 62, and a telescopic adjustment component 63. The fixed clamp 61 and the movable clamp 62 are respectively fixedly installed on the main shaft 5 and are arranged opposite to each other. The telescopic adjustment component 63 is arranged between the movable clamp 62 and the reel mounting base 4.

[0019] When using the device, the roll mounting base 4 is arranged in an L-shaped plate structure and fixed to the frame 1 with bolts. A horizontal shaft hole is formed on the roll mounting base 4. The main shaft 5 is rotatably inserted into the shaft hole via bearings. One end of the main shaft 5 is connected to the output end of the drive motor 51 via a coupling. The drive motor 51 is fixed to the side of the roll mounting base 4. The fixed clamping plate 61 is disc-shaped, and its center is fixedly connected to the end of the main shaft 5 via a keyway, rotating synchronously with the main shaft 5. A first friction plate is attached to the surface of the fixed clamping plate 61 facing the movable clamping plate 62 to increase the friction with the end face of the material roll 10. The movable clamping plate 62 is arranged opposite to the fixed clamping plate 61, and a second friction plate is attached to the surface of the movable clamping plate 62 facing the fixed clamping plate 61. The movable clamping plate 62 is moved by the telescopic adjustment component 63, thereby adjusting the distance between the fixed clamping plate 61 and the movable clamping plate 62 to accommodate material rolls 10 of different widths. Furthermore, the detection sensor 8 of the material roll 10 can be a photoelectric sensor or an ultrasonic sensor, which is fixed above the roll mounting base 4 by a sensor bracket, with its sensing end facing the radial surface of the material roll 10, and is used to detect the remaining thickness of the material roll 10, thereby improving the working efficiency of the device.

[0020] The telescopic adjustment assembly 63 includes an adjustment screw 631, a guide rail 632, and an adjustment motor 633. One end of the adjustment screw 631 is rotatably connected to the movable clamping plate 62, and the other end of the adjustment screw 631 is drive-connected to the adjustment motor 633. The movable clamping plate 62 is slidably connected to the guide rail 632.

[0021] When using the device, one end of the adjusting screw 631 is rotatably connected to the center of the movable clamp 62 via a thrust bearing, and the other end of the adjusting screw 631 is connected to the output shaft of the adjusting motor 633 via a coupling. The bottom of the movable clamp 62 is slidably connected to the guide rail 632 via a slider, and the guide rail 632 is fixed to the roll mounting base 4 along the axial direction of the main shaft 5. By driving the adjusting screw 631 to rotate through the adjusting motor 633, the movable clamp 62 moves along the guide rail 632, thereby adjusting the distance between the fixed clamp 61 and the movable clamp 62 to accommodate material rolls 10 of different widths, thus improving the working efficiency of the device.

[0022] The automatic material changing mechanism 7 includes a spare material roll 10 support 71, a transfer arm 72, and a receiving platform 73. The spare material roll 10 support 71 is fixedly installed on the frame 1, and the transfer arm 72 and the receiving platform 73 are respectively arranged between the spare material roll 10 support 71 and the adaptive reel mechanism 6.

[0023] When the material roll 10 detection sensor 8 detects that the remaining thickness of the current working material roll 10 has reached the material replacement threshold, the control system issues a material replacement instruction. The transfer arm 72 first moves to the spare material roll 10 support 71, and the gripper assembly 724 on the transfer arm 72 grabs the spare material roll 10 and transfers it to the lower pressure plate 732 of the receiving platform 73. The pressing drive 734 drives the upper pressure plate 733 to move down, and together with the lower pressure plate 732, clamps the spare material roll 10, temporarily fixing it. The transfer arm 72 moves to the adaptive reel mechanism 6, and the gripper assembly 724 removes the old material roll 10 that has finished working from the fixed position. The old material roll 10 is removed from between the clamping plate 61 and the movable clamping plate 62. The transfer arm 72 moves the old material roll 10 out of the working area (it can be transferred to the recycling station or directly discarded). The transfer arm 72 returns to the receiving platform 73. The gripper assembly 724 grabs the fixed spare material roll 10. The upper pressure plate 733 of the receiving platform 73 is released. The transfer arm 72 loads the spare material roll 10 into the adaptive reel mechanism 6. The movable clamping plate 62 and the fixed clamping plate 61 complete the clamping and fixation. The transfer arm 72 resets, and the equipment continues to operate normally. The entire material changing process can be completed automatically in a very short time without manual intervention, which improves the working efficiency of the device.

[0024] The transfer arm 72 includes a rotating base 721, a first swing arm 722, a second swing arm 723, and a gripper assembly 724. The rotating base 721 is fixed to the frame 1. One end of the first swing arm 722 is hinged to the rotating base 721, and the other end of the first swing arm 722 is hinged to one end of the second swing arm 723. The other end of the second swing arm 723 is fixedly connected to the gripper assembly 724.

[0025] During the material changing process, the control system coordinates the control of each joint according to a preset trajectory. The rotating base 721 first drives the first swing arm 722 to rotate to the target position. At the same time, the first swing drive element and the second swing drive element work together to make the first swing arm 722 and the second swing arm 723 swing along the planned path, driving the gripper assembly 724 to move precisely to the target position (such as the spare material roll 10 support 71, the receiving platform 73, or the adaptive roll mechanism 6). The gripper drive element drives the gripper fingers to close or open, completing the gripping or releasing action of the material roll 10. The entire motion process is controlled by a closed-loop servo system to achieve high-speed, stable, and precise pick-and-place operations.

[0026] The receiving platform 73 includes a fixed base 731, a lower pressure plate 732, an upper pressure plate 733, and a pressing drive component 734. The fixed base 731 is fixed on the frame 1, the lower pressure plate 732 is fixed on the fixed base 731, and the upper pressure plate is movably positioned above the lower pressure plate 732. The output end of the pressing drive component 734 is fixedly connected to the upper pressure plate 733.

[0027] After the transfer arm 72 places the spare or used roll 10 onto the lower pressure plate 732, the control system sends an action command to the pressing drive 734 according to the specifications of the roll 10 and preset parameters. The pressing drive 734 drives the upper pressure plate 733 to move downward smoothly until it contacts the upper surface of the roll 10 and reaches the set clamping force. At this time, the upper pressure plate 733 and the lower pressure plate 732 together clamp the radial sides or axial ends of the roll 10, keeping the roll 10 stable on the receiving platform 73. During the transfer arm 72's operation of picking up and placing the roll 10, the receiving platform 73 always remains clamped to ensure that the roll 10 does not shift, roll, or fall off. When the transfer arm 72 is ready to remove the roll 10, the pressing drive 734 drives the upper pressure plate 733 to lift upward, releasing the roll 10 and completing the handover.

[0028] The reel mounting base 4 is also provided with a discharge push plate 41, which is slidably connected to the reel mounting base 4 via a push plate cylinder 42.

[0029] When the material roll 10 detection sensor 8 detects that the remaining thickness of the current working material roll 10 has reached the material replacement threshold, and the automatic material replacement mechanism 7 has completed the preparation of the spare material roll 10, the old material roll 10 needs to be unloaded. At this time, the telescopic adjustment component 63 of the adaptive reel mechanism 6 drives the movable clamp 62 to move away from the fixed clamp 61, releasing the clamping force on the old material roll 10. Subsequently, the control system sends an action command to the push plate cylinder 42, and the piston rod of the push plate cylinder 42 extends, pushing the unloading push plate 41 to move axially towards the fixed clamp 61. After the unloading push plate 41 contacts the end face of the old material roll 10, it continues to push it towards the movable clamp 62, causing the old material roll 10 to slide axially off the main shaft 5 and break away from the clamping area of ​​the fixed clamp 61 and the movable clamp 62. After the old material roll 10 is released, it can be picked up and removed by the transfer arm 72, or fall directly into the recycling container below. After unloading is completed, the pusher cylinder 42 drives the unloading pusher 41 to retract to its original position, waiting for the next unloading operation.

[0030] The frame 1 is also equipped with a set of 9 guide wheels, which includes multiple guide wheels 9, and the guide wheels 9 are rotatably connected to the frame 1.

[0031] When the material roll 10 on the adaptive reel mechanism 6 rotates and is unloaded under the drive of the drive motor 51, the material strip is released from the roll 10, passes around each guide roller 9 in sequence, and finally enters the subsequent processing station (such as patching, bonding, or cutting stations). During the conveying process, each guide roller 9 supports and guides the material strip through rolling contact, allowing it to move smoothly along the predetermined path. The floating guide roller 9 automatically extends and retracts according to changes in the material strip tension, absorbing tension fluctuations and preventing the material strip from being too tight or too loose. The tension detection sensor collects the tension signal in real time, and the control system adjusts the speed of the drive motor 51 according to the signal to achieve closed-loop tension control, ensuring stable conveying of the material strip under constant tension.

[0032] Working principle: When the material roll 10 detection sensor 8 detects that the remaining thickness of the current working material roll 10 has reached the material replacement threshold, the rotating base 721 first drives the first swing arm 722 to rotate to the target position. At the same time, the first swing drive element and the second swing drive element work together to make the first swing arm 722 and the second swing arm 723 swing along the planned path. The drive gripper assembly 724 moves precisely to the spare material roll 10 rack to grip a spare material roll 10 and place it on the top surface of the lower pressure plate 732. Then, the drive pressing drive 734 makes the upper pressure plate... The 733 and the lower pressure plate 732 clamp the spare material roll 10, and then the first swing arm 722, the second swing arm 723 and the gripper assembly 724 remove the used material roll 10 from the fixed frame plate. Alternatively, the push cylinder can be activated to drive the unloading push plate 41 to slide on the mounting base, so that the unloading push plate 41 abuts against the material roll 10. Then, by driving the adjustment motor 633, the adjustment screw 631 slides along the guide of the movable clamp 62 on the frame 1 to adjust the distance between the movable clamp 62 and the fixed clamp 61, thereby improving the working efficiency of the device.

[0033] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A semiconductor packaging device, characterized in that, The system includes a frame (1) and a first feeding unit (2) and a second feeding unit (3) disposed on the frame (1). The first feeding unit (2) and the second feeding unit (3) each include a reel mounting seat (4), a main shaft (5), an adaptive reel mechanism (6), an automatic material changing mechanism (7), and a material roll (10) detection sensor (8). The reel mounting seat (4) is fixedly disposed on the frame (1). The main shaft (5) is rotatably disposed inside the reel mounting seat (4). One end of the main shaft (5) is fixedly connected to a spare material roll (10) for clamping out. The adaptive reel mechanism (6) is fixedly disposed on the other end of the main shaft (5) for carrying the material roll (10). The automatic material changing mechanism (7) is fixedly disposed on one side of the reel mounting seat (4) and fixedly connected to the frame (1). The material roll (10) detection sensor (8) is disposed on one side of the adaptive reel mechanism (6).

2. The semiconductor packaging equipment according to claim 1, characterized in that: The adaptive reel mechanism (6) includes a fixed clamp (61), a movable clamp (62), and a telescopic adjustment component (63). The fixed clamp (61) is fixedly installed on the main shaft (5), and the movable clamp (62) is disposed on the telescopic adjustment component (63). The fixed clamp (61) and the movable clamp (62) are disposed opposite to each other. The telescopic adjustment component (63) is disposed between the movable clamp (62) and the reel mounting base (4).

3. A semiconductor packaging device according to claim 2, characterized in that: The telescopic adjustment assembly (63) includes an adjustment screw (631), a guide rail (632), and an adjustment motor (633). One end of the adjustment screw (631) is rotatably connected to the movable clamp (62), and the other end of the adjustment screw is drively connected to the adjustment motor (633). The guide rail (632) is mounted on the frame (1), and the movable clamp (62) is slidably connected to the guide rail (632). The adjustment motor (633) is fixed on the reel mounting base (4), and its output shaft is coaxially arranged with the adjustment screw (631).

4. A semiconductor packaging device according to claim 3, characterized in that: The automatic material changing mechanism (7) includes a spare material roll (10) support (71), a transfer arm (72), and a receiving platform (73). The spare material roll (10) support (71) is fixedly installed on the frame (1). The transfer arm (72) and the receiving platform (73) are respectively located between the spare material roll (10) support (71) and the adaptive reel mechanism (6).

5. A semiconductor packaging device according to claim 4, characterized in that: The transfer arm (72) includes a rotating base (721), a first swing arm (722), a second swing arm (723), and a gripper assembly (724). The rotating base (721) is fixed to the frame (1). One end of the first swing arm (722) is hinged to the rotating base (721), and the other end of the first swing arm (722) is hinged to one end of the second swing arm (723). The other end of the second swing arm (723) is fixedly connected to the gripper assembly (724).

6. A semiconductor packaging device according to claim 5, characterized in that: The receiving platform (73) includes a fixed base (731), a lower pressure plate (732), an upper pressure plate (733), and a pressing drive (734). The fixed base is fixed on the frame (1), the lower pressure plate (732) is fixed on the fixed base (731), the upper pressure plate (733) is movably disposed above the lower pressure plate (732), and the output end of the pressing drive (734) is fixedly connected to the upper pressure plate (733).

7. A semiconductor packaging device according to claim 6, characterized in that: The reel mounting base (4) is also provided with a discharge push plate (41), which is slidably connected to the reel mounting base (4) through a push plate cylinder (42).

8. A semiconductor packaging device according to claim 7, characterized in that: The frame (1) is also provided with a guide wheel assembly, which includes multiple guide wheels (9) and the guide wheels (9) are rotatably connected to the frame (1).

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