Transfer jig for integrated circuit packaging and use method

Abstract

The invention discloses a transfer jig for integrated circuit packaging and a use method, and relates to the technical field of integrated circuit packaging. The transfer jig comprises a frame structure composed of a top plate, a bottom plate, a first side plate and a second side plate, containing grooves for containing strip products are formed in the inner side walls of the first side plate and the second side plate, and a locking frame with a locking position and a releasing position is movably installed at the inlet end and / or the outlet end of the frame structure; when the locking frame is in the release position, the channel on the locking frame is aligned with the accommodating groove for the product to enter and exit, and when the locking frame is in the locking position, the port of the accommodating groove is blocked to lock the product. In addition, the jig can achieve automatic resetting of the locking frame through a screw rod and an extension spring, the top plate is provided with a mechanical gripper block and a two-dimensional code printing groove, the frame structure plates are provided with open holes and long-strip-shaped holes, and the plates are connected through mortise and tenon joint structures. According to the invention, the transfer requirement of the whole packaging process can be adapted, the jig does not need to be replaced frequently, the transfer stability and the automation level are improved, and the cost and the product damage risk are reduced.

Description

Technical Field

[0001] This application belongs to the field of integrated circuit packaging technology, and specifically relates to a transfer fixture for integrated circuit packaging and a method of using it. Background Technology

[0002] Integrated circuit packaging is a critical back-end process in semiconductor manufacturing, and its level of automation directly affects production efficiency and product yield. In traditional packaging processes, leadframe strip products require multiple steps, including die bonding, bonding, molding, post-curing, heat treatment and softening, tinning, printing, and lead trimming. Because the process requirements and environments for each step are vastly different—for example, requirements for fixture transfer efficiency, heat dissipation, precision maintenance, liquid flowability, and automation compatibility vary—the industry currently widely uses different fixtures specifically designed for different steps to handle product transfer and loading.

[0003] This "one fixture per process" model has significant drawbacks: First, the design, manufacturing, and maintenance costs of multiple fixtures are high, increasing the complexity of production management; second, frequent switching and handling of semi-finished strips between different fixtures not only reduces production efficiency but also increases the risk of product damage due to secondary positioning, collisions, or contamination; third, many existing fixtures have structural defects. For example, QR code labels used for data traceability are mostly fixed by pasting or mechanical means, which are prone to introducing foreign objects or falling off in high-temperature baking environments, affecting product quality and traceability; in addition, the design of heat dissipation channels and liquid flow channels in existing fixtures is often insufficient, resulting in low efficiency in processes such as post-curing and hot-cooking softening. Summary of the Invention

[0004] The purpose of this application is to provide a transfer fixture and its usage method for integrated circuit packaging. This addresses the problems mentioned in the background art, such as high cost, complex management, low production efficiency, and product damage during transfer due to unstable fixing caused by the traditional "one fixture per sequence" approach in integrated circuit packaging.

[0005] To achieve the above objectives, this application adopts the following technical solution: A transfer fixture for integrated circuit packaging includes: A frame structure formed by a top plate, a bottom plate, a first side plate, and a second side plate; Multiple receiving slots for accommodating strip products are provided on the inner sidewalls opposite to the first side plate and the second side plate; At least one locking frame is movably mounted to a first end and / or a second end of the frame structure, the first end being the end where the strip product is fed in, and the second end being the end where the strip product is removed; the locking frame has a locked position and a released position relative to the frame structure; When in the released position, the channel on the locking frame is aligned with the receiving slot for inserting or removing the strip product; When in the locked position, the locking frame blocks the port of the receiving slot to lock the strip product inside the receiving slot.

[0006] In one possible implementation, the locking frame includes a first locking frame and a second locking frame, which are movably mounted to the first end and the second end of the frame structure, respectively.

[0007] In one possible implementation, the locking frame is provided with a fixing lug and a travel limiting hole; the transfer fixture further includes: The screw is inserted into the stroke limiting hole and threadedly connected to the side plate of the frame structure; A tension spring, one end of which is hung on the fixed lug and the other end of which is hung on the screw; The tension spring provides a biasing force to the locking frame toward the locked position.

[0008] In one possible implementation, the screw includes a fixed thread, a contact light rod, a limiting light rod, and a spring limiting cap connected in sequence; The fixing thread engages with the threaded hole on the side plate of the frame structure; The contact light rod is clearance-fitted with the travel limiting hole; The end of the tension spring is attached to the limiting light rod. The spring limiting cap is used to axially limit the tension spring and prevent it from falling off the screw.

[0009] In one possible implementation, the upper surface of the top plate is provided with a mechanical gripper block protruding from its surface, the mechanical gripper block being used by a mechanical device to grasp and move the frame structure.

[0010] In one possible implementation, the upper surface of the top plate is provided with a QR code printing groove, which is used to accommodate the printed QR code to realize information traceability of the strip product.

[0011] In one possible implementation, the top plate and / or bottom plate are provided with openings for enhancing the heat dissipation performance and liquid flow of the fixture; The first side plate and / or the second side plate are provided with elongated holes, which are corresponding to the receiving grooves to enhance the heat dissipation performance and liquid flow of the fixture.

[0012] In one possible implementation, the top plate, bottom plate, first side plate, and second side plate are connected by a mortise and tenon structure.

[0013] In one possible implementation, the locking frame is provided with an entrance chamfer, an anti-collision chamfer, a transition chamfer, and a locking frame groove: The inlet chamfer is located at the edge of the channel near the first end of the frame structure of the locking frame, and is used to guide the strip product into the channel; The anti-collision chamfer is located at the outer edge corner of the locking frame to reduce collision damage; The transition chamfer is located at the edge of the mating surface between the locking frame and the side panel of the frame structure, in order to reduce friction between the locking frame and the side panel; The locking frame grooves are formed on the side of the locking frame facing the inside of the frame structure. Their number and position correspond one-to-one with the receiving slots. When the locking frame is in the released position, the locking frame grooves are aligned with the receiving slots to form a channel for the strip products to enter and exit.

[0014] Secondly, a method for using integrated circuit packaging is provided, employing the transfer fixture described in the first aspect, comprising the following steps: S1: Drive the locking frame to the release position; S2: Feed the strip product into the frame structure along the aligned receiving groove and the channel on the locking frame; S3: Release the locking frame to return it to the locked position, locking the strip product in the receiving slot; S4: The entire fixture is moved by gripping the mechanical gripper block located on the top plate using a mechanical device.

[0015] Compared with the prior art, this application has the following beneficial effects: This application provides a transfer fixture for integrated circuit packaging. Through a frame structure formed by a top plate, a bottom plate, a first side plate, and a second side plate, combined with a movable locking frame design featuring both locking and releasing positions, it breaks the limitations of the traditional "one fixture per process" approach. This achieves seamless transfer of strip products throughout the entire packaging process, significantly reducing fixture procurement and management costs and minimizing process changeover time. Simultaneously, the locking frame's return to the locked position stably confines the strip product within the receiving slot, effectively solving the problem of products easily falling off and being damaged during handling and vibration, significantly reducing product defect rates. Furthermore, the open design of the frame structure not only simplifies manufacturing and maintenance processes but also reserves space for future functional expansion, enhancing compatibility with different process equipment and comprehensively improving the efficiency and reliability of integrated circuit packaging production.

[0016] In one possible implementation, a segmented screw design is used. The fixing thread ensures that the screw and the side plate are firmly fixed and will not loosen. The clearance fit between the contact rod and the travel limit hole reduces friction during movement, reduces component wear, and extends the service life of the fixture. The limit rod can steadily block the tension spring, preventing the spring from shifting or falling off during tensioning or resetting, ensuring that the spring can always function normally. This, in turn, ensures the stability of the reset and locking functions of the locking frame, making the entire fixture structure more reliable.

[0017] In one possible implementation, by setting a groove for printing the QR code, the QR code can be protected, preventing it from being scratched or worn during handling or storage, thus ensuring the accuracy of the traceability information. Furthermore, it eliminates the need for traditional methods of attaching QR codes with glue or mechanically fixing them, making updates easier and reducing maintenance costs. It also helps maintain a clean production environment, preventing foreign objects from affecting product quality.

[0018] In one possible implementation, by using a mechanical gripper block, the mechanical gripper can move the fixture without touching the strip products inside the frame structure. This avoids the possibility of the gripper accidentally touching the product and causing scratches or damage, thus protecting product quality. Furthermore, the positioning slot ensures that the mechanical gripper always grips the same position, preventing misalignment and fixture tilting. This results in more stable and accurate handling, making it suitable for continuous operation on automated production lines.

[0019] In one possible implementation, the opening and elongated hole form a smooth channel, meeting the heat dissipation or liquid contact requirements of different processes. During post-curing, hot air flows quickly, the product is heated evenly, and the curing effect is good and fast. During hot boiling softening, the liquid can fully contact the product, resulting in good softening effect and shortening the process time. Moreover, this design maximizes the flow area while ensuring the strength of the fixture, eliminating the need to change to special fixtures for post-curing, hot boiling softening, and other processes, reducing the cumbersome fixture replacement process and lowering costs.

[0020] In one possible implementation, mortise and tenon joints are used to connect the panels, eliminating the need for bolts and glue, simplifying assembly and reducing assembly costs. Furthermore, the interlocking mortise and tenon structure ensures precise connection between the four panels, minimizing gaps and maintaining overall frame stability. Even with frequent long-term use, or exposure to vibrations and temperature changes causing expansion and contraction, the panels are unlikely to loosen, maintaining high connection precision. This ensures the stability of the receiving groove position, preventing the strip products from shifting due to fixture deformation or displacement during transport, thus reducing product quality defects caused by fixture precision issues.

[0021] In one possible implementation, by optimizing the details of the locking frame, the ease of loading and unloading of strip products is ensured, while the operational safety and structural stability of the fixture are improved. This works in tandem with the overall function of the locking frame, further enhancing the adaptability of the transfer fixture in various processes of integrated circuit packaging.

[0022] A method for using a transfer fixture for integrated circuit packaging is disclosed. This method features clear steps, a high degree of automation, and minimal human intervention. A drive locking frame facilitates product placement, a spring reset automatically locks the product, and a mechanical gripper uses a dedicated gripper block for transport. The entire process is stable and reliable, reducing human error and improving transfer efficiency. Furthermore, this method can be used for transfer processes such as die bonding, bonding, molding, and post-curing without requiring fixture changes or process adjustments. It ensures continuous production, protects products from damage and misalignment during transfer, reduces production costs, and improves product yield. Attached Figure Description

[0023] Figure 1 A schematic diagram of the overall structure of a transfer fixture for integrated circuit packaging provided in this application; Figure 2 This application provides a structural schematic diagram of a locking frame mounting screw; Figure 3 This application provides a schematic diagram of the overall structure of a screw. Figure 4 This is a schematic diagram of the overall structure of a locking frame provided in this application.

[0024] The attached diagram shows the following labels: 1. Locking frame; 2. Screw; 21. Spring limit cap; 22. Limiting light rod; 23. Contact light rod; 24. Fixing thread; 3. Tension spring; 4. Feed direction arrow of transfer fixture; 5. QR code printing groove; 6. Mechanical gripper block; 7. First side plate; 8. Top plate; 9. Bottom plate; 10. Second side plate; 11. Inlet chamfer; 12. Anti-collision chamfer; 13. Transition chamfer; 14. Fixing lug; 15. Travel limit hole; 16. Locking frame groove; 17. Strip product. Detailed Implementation

[0025] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0026] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly defined. The specific embodiments of this application will be further described in detail below with reference to the accompanying drawings.

[0028] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0029] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0030] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0031] like Figure 1 and Figure 2 As shown, this application discloses a transfer fixture for integrated circuit packaging, which may include: The frame structure is formed by a top plate 8, a bottom plate 9, and a first side plate 7 and a second side plate 10 connected between the top plate 8 and the bottom plate 9. Multiple receiving slots are provided on the inner side walls of the first side plate 7 and the second side plate 10 to hold the strip product 17.

[0032] Specifically, the frame structure of the transfer fixture is assembled from a top plate 8, a bottom plate 9, a first side plate 7, and a second side plate 10. On the inner sidewalls of the first side plate 7 and the second side plate 10, 20 receiving grooves are spaced vertically. The width of each receiving groove is designed according to the thickness of both sides of the strip product 17, so that it can stably support the strip product 17.

[0033] At least one locking frame 1 is movably mounted on a first end and / or a second end of the frame structure, the first end being the end where the strip product is fed in and the second end being the end where the strip product is removed.

[0034] The locking frame 1 has two states: locked position and released position. When in the released position, the channel on the locking frame 1 is aligned with the receiving slot, making it easy to put or take out the strip product 17; when in the locked position, the locking frame 1 blocks the port of the receiving slot, fixing the strip product 17 in the receiving slot.

[0035] The frame structure has a locking frame 1 installed at both the inlet and outlet ends via screw 2 assemblies. There can be one or two locking frames 1. The height of the locking frame 1 is the same as that of the first side plate 7 and the second side plate 10, and it also has 20 channels corresponding to the positions of the receiving slots.

[0036] When strip product 17 needs to be placed, push strip product 17 into the receiving groove along the channel until the channel and receiving groove are fully aligned.

[0037] When fixed, by adjusting the screw 2 assembly, the locking frame 1 will be moved to the locking position, and its physical part will cover the receiving groove port to prevent the strip product 17 from sliding out.

[0038] In this embodiment, the receiving grooves of the first side plate 7 and the second side plate 10 can stably support the strip product 17. The movable locking frame 1, in conjunction with this, enables the locking and releasing of the product. The structure is simple and easy to operate, meeting the transfer requirements of the strip product 17 between various packaging processes. It eliminates the need for separate fixtures for different processes, reducing the types of fixtures, lowering procurement and management costs, avoiding production stoppages caused by frequent fixture changes, and ensuring the stability of the strip product 17 during transfer, reducing the risk of damage from impacts.

[0039] In one possible embodiment, the locking frame 1 includes a first locking frame and a second locking frame, which are respectively movably mounted on the first end and the second end of the frame structure.

[0040] Optionally, based on the above embodiments, the frame structure is equipped with a first locking frame 1 at the inlet end and a second locking frame 1 at the outlet end. The two locking frames 1 have the same structure and are connected to the side plate through a screw 2 structure.

[0041] When placing the strip product 17, simultaneously pull both locking frames 1 to the release position so that their channels are aligned with the receiving groove. Push the strip product 17 in from the inlet channel, pass through the receiving groove, and exit from the outlet channel. After confirming that the product is completely placed in the receiving groove, release the two locking frames 1. They will return to the locking position simultaneously, blocking the inlet and outlet ports of the receiving groove respectively.

[0042] In this embodiment, by installing locking frames 1 at the inlet and outlet ends of the frame structure, the strip product 17 can be double-locked at both ends, further improving stability during the transfer process. This reduces the risk of accidental tilting or vibration during jig handling, and prevents the strip product 17 from slipping out from both ends, effectively ensuring the safety of the product during multi-process transfer. Moreover, the coordinated operation of the locking frames 1 at both ends allows for more flexible insertion and removal of the strip product 17, adapting to the product's entry and exit requirements in processes such as core mounting, pressure welding, and plastic sealing.

[0043] In one possible embodiment, such as Figure 3 and Figure 4 As shown, the locking frame 1 is provided with a fixed lug 14 and a travel limit hole 15; the transfer fixture also includes a screw 2 and a tension spring 3. The screw 2 passes through the travel limit hole 15 and is threadedly connected to the side plate of the frame structure. One end of the tension spring 3 is hung on the fixed lug 14 and the other end is hung on the screw 2, providing a biasing force for the locking frame 1 to tend towards the locking position.

[0044] Specifically, the top two sides of the locking frame 1 are provided with mounting grooves, and the mounting grooves are provided with fixing lugs 14 and travel limit holes 15. The fixing lugs 14 are integrally connected to the mounting grooves of the locking frame 1 and are distributed along the length direction of the travel limit holes 15.

[0045] The fixture is equipped with four screws 2 at its inlet and outlet ends. Each screw 2 passes through a travel limit hole 15 and is screwed into the corresponding threaded hole of the first side plate 7 or the second side plate 10 for fixation.

[0046] Each locking frame 1 is provided with two tension springs 3 at the top or bottom. One end of each tension spring 3 is hung on the fixed hanging ear 14, and the other end is sleeved on the smooth section of the screw 2, and is blocked by the spring limit cap 21 to prevent it from slipping.

[0047] When the locking frame 1 is pulled to the release position, the spring will be stretched; when the locking frame 1 is released, the spring's rebound force will automatically return the locking frame 1 to the locked position, maintaining the force on the locking frame 1.

[0048] In this embodiment, this structure, through the cooperation of the screw 2 and the travel limiting hole 15, allows the locking frame 1 to move while limiting its direction and distance of movement, preventing the locking frame 1 from shifting. The tension spring 3 allows the locking frame 1 to automatically reset without manual pushing, reducing manual operation steps and better meeting the needs of automated production. It also ensures that the locking force is consistent each time, preventing some products from being locked too tightly and others from being locked too loosely, thus ensuring reliable product locking.

[0049] In one possible embodiment, the screw 2 may include a fixed thread 24, a contact light rod 23, a limiting light rod 22 and a spring limiting cap 21 connected in sequence; the fixed thread 24 engages with a threaded hole on the side plate, the contact light rod 23 engages with a travel limiting hole 15 with clearance, and the end of the tension spring 3 is hung on the limiting light rod 22.

[0050] The screw 2 is a single-piece structure, consisting of three sections: a fixing thread 24, a contact rod 23, a limiting rod 22, and a spring limiting cap 21. The fixing thread 24 is 20mm long with a pitch of 2mm, which perfectly matches and tightens with the threaded hole on the side plate.

[0051] The diameter of the contact light rod 23 is 0.1 mm smaller than that of the travel limit hole 15, and the length is 30 mm. The locking frame 1 can slide smoothly without jamming when it moves along the light rod.

[0052] The diameter of the limiting light rod 22 is 5mm larger than that of the contact light rod 23, and it is 15mm longer. The end of the tension spring 3 is fitted onto this section and blocked by the stepped surface of the light rod, so it will not slip to the contact light rod 23 side. When installing the screw 2, screw the fixing thread 24 into the threaded hole of the side plate until the contact light rod 23 completely passes through the travel limiting hole 15.

[0053] In this embodiment, the screw 2, with its segmented design, and the fixing thread 24, securely fixes the screw 2 and the side plate, preventing them from loosening. The clearance fit between the contact rod 23 and the travel limit hole 15 reduces friction during movement, lowers component wear, and extends the service life of the fixture. The limit rod 22 steadily blocks the tension spring 3, preventing it from shifting or falling off during tensioning or resetting, ensuring that the spring always functions properly. This, in turn, ensures the stability of the reset and locking functions of the locking frame 1, making the entire fixture structure more reliable.

[0054] In one possible embodiment, the upper surface of the top plate 8 is provided with a mechanical gripper block 6 protruding from its surface.

[0055] Specifically, a mechanical gripper block 6 can be bolted or integrally molded and fixed to the upper surface of the top plate 8 near the center. This mechanical gripper block 6 can be cuboid in shape, with dimensions of 50mm long, 30mm wide, and 15mm high. Its outer surface is polished, and symmetrical positioning grooves are cut on both sides, each 5mm deep and 8mm wide, perfectly matching the grippers of the mechanical grippers on the automated production line. When the mechanical gripper needs to move the fixture, the grippers extend into the positioning grooves, clamping the gripper block, thus moving the entire fixture and the strip product 17 inside together.

[0056] In addition, the mechanical gripper block 6 is equipped with a feeding direction arrow 4 to facilitate feeding.

[0057] In this embodiment, the mechanical gripper block 6 allows the mechanical gripper to move the fixture without touching the strip product 17 inside the frame structure, preventing scratches or damage caused by accidental contact between the grippers and the product, thus protecting product quality. Furthermore, the positioning groove ensures the mechanical gripper always grips the same position, preventing misalignment and fixture tilting, resulting in more stable and accurate handling, suitable for continuous operation on automated production lines.

[0058] In one possible embodiment, the upper surface of the top plate 8 is provided with a QR code printing groove 5.

[0059] Optionally, a square QR code printing groove 5, 20mm long and 2mm deep, is cut into the upper surface of the top plate 8 near the edge. In actual use, a QR code is laser-printed in the groove. This QR code contains information such as the batch number, production time, and processes of the strip product 17, facilitating product tracking. If information needs to be updated, the old QR code can be gently sanded off with fine sandpaper, and a new one can be laser-printed without replacing the top plate 8.

[0060] In addition, the top plate 8 is also equipped with a feeding direction arrow 4 to facilitate feeding.

[0061] In this embodiment, by setting the QR code printing groove 5, the QR code can be protected, preventing the surface of the QR code from being rubbed or worn during handling or storage, thus ensuring the accuracy of traceability information. Moreover, unlike traditional methods, there is no need to use glue to stick the QR code or mechanically fix it, making updates easier and reducing maintenance costs. At the same time, it can keep the production environment clean and prevent foreign objects from affecting product quality.

[0062] In one possible embodiment, the top plate 8 and / or the bottom plate 9 are provided with openings; the first side plate 7 and / or the second side plate 10 are provided with elongated holes.

[0063] Optionally, multiple openings can be made on the top plate 8 and the bottom plate 9, evenly distributed on the top plate 8 and the bottom plate 9, with the edge of the opening 5mm away from the edge of the plate, so as to ensure the opening area without affecting the strength of the plate.

[0064] The first side plate 7 and the second side plate 10 are respectively provided with elongated holes along the length of the receiving groove. These elongated holes are connected to the receiving groove and correspond one-to-one. For example, during the post-curing process, hot air can flow in the frame structure through the openings in the top plate 8 and the bottom plate 9 and the elongated holes in the side plates, so that the product is heated evenly; during the hot boiling and softening process, the ultrasonic liquid can also fully contact the strip product 17 through these holes.

[0065] In this embodiment, the opening and elongated hole form a smooth channel, meeting the heat dissipation or liquid contact requirements of different processes. During post-curing, hot air flows quickly, the product is heated evenly, and the curing effect is good and fast. During hot boiling softening, the liquid can fully contact the product, resulting in a good softening effect and shortening the process time. Moreover, this design maximizes the flow area while ensuring the strength of the fixture, eliminating the need to change to special fixtures for post-curing, hot boiling softening, and other processes, reducing the cumbersome fixture replacement process and lowering costs.

[0066] In one possible embodiment, the top plate 8, the bottom plate 9, the first side plate 7, and the second side plate 10 are connected by a mortise and tenon structure.

[0067] Specifically, the top plate 8, bottom plate 9, first side plate 7 and second side plate 10 are all spliced ​​with mortise and tenon structure. The top and bottom of the first side plate 7 and the second side plate 10 have rectangular grooves with a depth of 10mm and a width of 15mm. On both sides of the lower surface of the top plate 8 and both sides of the upper surface of the bottom plate 9, rectangular protrusions matching the grooves are integrally formed. The height and width of the protrusions are the same as the grooves.

[0068] During assembly, insert the protrusion on the lower surface of the top plate 8 into the groove on the top of the first side plate 7 and the second side plate 10, and insert the protrusion on the upper surface of the bottom plate 9 into the groove on the bottom of the first side plate 7 and the second side plate 10 to fix the four plates in place. The gap between the plates after splicing is less than 0.1mm.

[0069] In this embodiment, the use of mortise and tenon joints eliminates the need for bolts and glue, simplifying assembly and reducing costs. Furthermore, the interlocking mortise and tenon structure ensures precise connection between the four panels, minimizing gaps and maintaining overall frame stability. Even with prolonged and frequent use, or exposure to vibrations and temperature fluctuations causing expansion and contraction, the panels remain relatively stable, maintaining high connection precision. This ensures the stability of the receiving slot position, preventing the strip product 17 from shifting due to fixture deformation or displacement during transport, thus reducing product quality defects caused by fixture precision issues.

[0070] In one possible embodiment, the locking frame 1 is provided with an entrance chamfer 11, an anti-collision chamfer 12, a transition chamfer 13, and a locking frame groove 16.

[0071] The first and second locking frames both have an inlet chamfer 11 at the edge of the channel near the inlet end of the frame structure. The inlet chamfer 11 has an inclination angle of 30° along the direction of entry of the strip product 17 and gradually expands outward from the edge of the channel. When the strip product 17 is fed in, it can smoothly enter the channel and the receiving groove through the guiding effect of the chamfer, avoiding the edge of the strip product 17 from rubbing against the locking frame 1.

[0072] The locking frame 1 has anti-collision chamfers 12 at the four outer corners, which are made of rounded edges with a radius of 2mm. During jig handling, assembly and daily operation, the risk of damage when the locking frame 1 collides with the operator or other equipment can be effectively reduced, while avoiding accidental scratches to the strip product 17 caused by the sharp angle structure.

[0073] The locking frame 1 has a transition chamfer 13 on its side edge that is in contact with the first side plate 7 and the second side plate 10. The inclination angle of the transition chamfer 13 is 45°, which is adapted to the movement trajectory of the locking frame 1 along the axial direction of the screw 2. When the locking frame 1 switches between the release position and the locking position, the transition chamfer 13 can reduce the frictional interference between the locking frame 1 and the side plate, making the movement of the locking frame 1 smoother and reducing component wear.

[0074] On one side surface of the locking frame 1 facing the interior of the frame structure, there are 20 locking frame grooves 16 spaced vertically. The width of the locking frame groove 16 is the same as the width of the receiving groove, and the spacing between adjacent locking frame grooves 16 is the same as the spacing between the receiving grooves, ensuring that each locking frame groove 16 can be precisely aligned with the corresponding receiving groove.

[0075] When the locking frame 1 is in the released position, the locking frame groove 16 and the receiving groove form a continuous channel structure, allowing the strip product 17 to pass through smoothly; when the locking frame 1 is in the locked position, the locking frame groove 16 and the receiving groove are misaligned, and the solid part of the locking frame 1 can closely fit the edge of the strip product 17 to achieve reliable locking.

[0076] In this embodiment, by optimizing the details of the locking frame 1, the ease of loading and unloading the strip product 17 is ensured, and the operational safety and structural stability of the fixture are improved. This forms an organic combination with the overall function of the locking frame 1, further enhancing the adaptability of the transfer fixture in various processes of integrated circuit packaging.

[0077] In one possible embodiment, a method of use for integrated circuit packaging is provided, employing the above-described transfer fixture, including the following steps: S1: Drive the locking frame 1 to move to the release position.

[0078] Optionally, in actual operation, the locking frame 1 is first pulled by the mechanical drive device to overcome the elastic force of the tension spring 3 and pull the locking frame 1 to the release position, so that the channel on the locking frame 1 and the receiving groove are aligned.

[0079] S2: Feed the strip product 17 into the frame structure along the aligned receiving groove and the channel on the locking frame 1.

[0080] Optionally, the strip product 17 is fed into the frame structure via a conveyor belt along the aligned channels and receiving slots, ensuring that the product is completely placed in the receiving slots.

[0081] S3: Release the locking frame 1 to reset it to the locked position, locking the strip product 17 in the receiving groove.

[0082] Specifically, the mechanical drive device then releases the locking frame 1, and the locking frame 1 returns to the locked position under the rebound force of the tension spring 3, blocking the receiving groove port and fixing the product.

[0083] S4: The entire fixture is moved by grabbing the mechanical gripper block 6 located on the top plate 8 using a mechanical device.

[0084] Finally, the mechanical gripper of the automated production line extends into the positioning slot of the mechanical gripper block 6 on the top plate 8, clamps the mechanical gripper block 6, and moves the entire fixture and the product inside to the next process station, thus completing one transfer.

[0085] In this embodiment, the method has clear steps, a high degree of automation, and requires minimal human intervention. The driving locking frame 1 easily places the product, the spring reset automatically locks the product, and the mechanical gripper uses a dedicated gripper block for transport. The entire process is stable and reliable, reducing human error and improving transfer efficiency. Furthermore, this method can be used for core mounting, pressure welding, molding, and post-curing processes without changing fixtures or adjusting the process, ensuring continuous production. It also protects the product from damage or displacement during transfer, reducing production costs and increasing product yield.

[0086] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them; although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications to the technical solutions described in the foregoing embodiments, or equivalent substitutions for some or all of the technical features, do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A transfer tool for integrated circuit packaging, characterized by, The frame structure is enclosed by a top plate (8), a bottom plate (9), a first side plate (7) and a second side plate (10); A plurality of accommodating grooves for accommodating the strip product (17) are formed on the inner side walls of the first side plate (7) and the second side plate (10) opposite to each other; At least one locking frame (1) is movably mounted at the first end and / or the second end of the frame structure, the first end being the end where the strip product (17) is fed in, and the second end being the end where the strip product (17) is taken out; The locking frame (1) has a locking position and a release position relative to the frame structure; When in the release position, the passage on the locking frame (1) is aligned with the accommodating grooves, for feeding or taking out the strip product (17); When in the locking position, the locking frame (1) blocks the ports of the accommodating grooves, to lock the strip product (17) in the accommodating grooves. The locking frame (1) includes a first locking frame and a second locking frame, which are movably mounted at the first end and the second end of the frame structure, respectively.

2. The transfer tool of claim 1, wherein The locking frame (1) is provided with a fixed lug (14) and a stroke limiting hole (15); the transfer tool further includes:

3. The transfer tool of claim 2, wherein, A screw rod (2) is arranged in the stroke limiting hole (15) and is threadedly connected with the side plate of the frame structure; A tension spring (3) is hung at one end of the fixed lug (14) and at the other end of the limiting rod section (22) of the screw rod (2); The tension spring (3) provides a biasing force for the locking frame (1) to tend to the locking position. The screw rod (2) includes a fixed thread (24), a contact rod (23), a limiting rod (22) and a spring limiting cap (21) connected in sequence; 4. The transfer tool of claim 3, wherein The fixed thread (24) is matched with the threaded hole on the frame structure; The contact rod (23) is matched with the stroke limiting hole (15) in a clearance fit; The end of the tension spring (3) is hung on the limiting rod (22); The spring limiting cap (21) is used for axially limiting the tension spring (3) to prevent the tension spring (3) from falling off the screw rod (2). The upper surface of the top plate (8) is provided with a mechanical gripper block (6) protruding from the surface, which is used for being gripped by a mechanical device to carry the frame structure.

5. The transfer tool of claim 1, wherein The upper surface of the top plate (8) is provided with a two-dimensional code printing groove (5) for accommodating a printed two-dimensional code, to realize information tracing of the strip product (17).

6. The transfer tool of claim 1, wherein The top plate (8) and / or the bottom plate (9) are provided with an opening; 7. The transfer tool of claim 1, wherein The first side plate (7) and / or the second side plate (10) are provided with a long hole corresponding to the accommodating grooves. The top plate (8), the bottom plate (9), the first side plate (7) and the second side plate (10) are connected through a mortise and tenon structure.

8. The transfer tool of claim 1, wherein, The locking frame (1) is provided with an entry chamfer (11), a collision chamfer (12), a transition chamfer (13) and a locking frame groove (16):

9. The transfer tool of claim 1, wherein, ​ The entrance chamfer (11) is arranged at the edge of the passage of the locking frame (1) near the first end of the frame structure, for guiding the strip product (17) to enter the passage; The anti-collision chamfer (12) is arranged at the corner of the outer edge of the locking frame (1); The transition chamfer (13) is arranged at the edge of the fitting surface of the locking frame (1) and the side plate of the frame structure, for reducing the friction between the locking frame (1) and the side plate; The locking frame groove (16) is arranged at the side of the locking frame (1) facing the inside of the frame structure, the number and position of which are corresponding to the accommodating grooves, and when the locking frame (1) is in the released position, the locking frame groove (16) is aligned with the accommodating groove to form a passage for the strip product (17) to enter and exit.

10. A method of using a transfer handler for integrated circuit packages, employing the transfer handler of any one of claims 1-9, wherein, The method comprises the following steps: S1: driving the locking frame (1) to move to the released position; S2: sending the strip product (17) along the aligned passage on the accommodating groove and the locking frame (1) into the frame structure; S3: releasing the locking frame (1) to reset to the locking position, and locking the strip product (17) in the accommodating groove; S4: grabbing the mechanical gripper block (6) arranged on the top plate (8) by the mechanical device to carry the whole jig.

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