carrier tape

Abstract

The utility model discloses a carrier tape for bearing the element to be packaged, and the element to be packaged includes element body, the convex structure of being arranged in element body one side, the carrier tape includes the carrier tape body of extending along the length direction, bears the unit of being arranged on carrier tape body, the bearing unit includes the accommodation cavity of accommodating element body and is used for the limiting hole of the convex structure falling, the limiting hole is arranged in the bottom of accommodation cavity, and the radial cross section area of limiting hole is not less than 1 / 5 of the cross section area of accommodation cavity in the radial direction of limiting hole. The utility model realizes the carrier tape steady bearing element to be packaged, avoids the inclination or overturning in the transmission process, guarantees the stability of element in the packaging and transmission process.

Description

Technical Field

[0001] This utility model relates to the field of semiconductor technology, and in particular to a carrier tape. Background Technology

[0002] Carrier tapes are currently widely used in semiconductor packaging and electronic component transportation. They are made by stamping and forming pockets to carry and store electronic components. By sealing the top of the carrier tape with a cover tape, a closed package is formed to protect the electronic components from contamination and damage during transportation.

[0003] However, when traditional carrier tapes are used to accept and transport small components with one or two bumps or pads, such as small sensors or micro LEDs, the flat-bottomed pockets cannot effectively secure these components. This makes the components prone to tilting or flipping during transport, which can affect subsequent production processes. For example, it may cause the components to be inaccurately positioned during soldering and other processes, thus affecting product quality.

[0004] Secondly, existing pockets use stamped circular vacuum holes at the bottom to attract components. However, when attracting components with bumps or pads, the shape of the circular vacuum hole does not match the shape of the bumps or pads on the component. This results in uneven distribution of the adsorption force on the component surface. Uneven adsorption force can cause components to easily shift during adsorption and movement, which can also interfere with subsequent production operations, reducing production accuracy and efficiency. Utility Model Content

[0005] The purpose of this invention is to provide a carrier tape to stably support electronic components, prevent the components from tilting or flipping during transmission, and ensure the stability of the components during packaging and transmission.

[0006] To achieve the above objectives, this utility model provides a carrier tape for carrying components to be packaged. The component to be packaged includes a component body and a protrusion structure disposed on one side of the component body. The carrier tape includes a carrier tape body and a support unit disposed on the carrier tape body. The support unit includes a receiving cavity for accommodating the component body and a limiting hole for the protrusion structure to fall into. The limiting hole is disposed at the bottom of the receiving cavity, and the radial cross-sectional area of ​​the limiting hole is not less than 1 / 5 of the cross-sectional area of ​​the receiving cavity in the radial direction of the limiting hole.

[0007] According to one embodiment of the present invention, the carrier tape body has a first surface and a second surface opposite to the first surface, the accommodating cavity is recessed from the first surface to the second surface, the accommodating cavity has a bottom wall for supporting the component body, the surface of the bottom wall is set as a flat surface, and the limiting hole is provided through the bottom wall.

[0008] According to one embodiment of the present invention, the radial cross-section of the limiting hole is rectangular, and the cross-sectional length and cross-sectional width can be defined, wherein the cross-sectional length is set to be not less than the cross-sectional width; the bottom wall of the accommodating cavity is rectangular, and the bottom wall length and bottom wall width can be defined, wherein the bottom wall length is set to be not less than the bottom wall width; wherein, the cross-sectional width is not less than half of the bottom wall width.

[0009] According to one embodiment of the present invention, the accommodating cavity further includes a sidewall disposed around the periphery of the bottom wall, and the minimum distance between the limiting hole and the sidewall is not less than 50 μm.

[0010] According to one embodiment of the present invention, the bearing unit further includes a support portion disposed on one side of the second surface of the carrier body, the portion of the support portion facing the second surface being formed as the bottom wall of the accommodating cavity, and the limiting hole being disposed through the support portion along the thickness direction.

[0011] According to one embodiment of the present invention, the cross-sectional dimension of the support portion in the radial direction of the limiting hole is larger than the cross-sectional dimension of the accommodating cavity in the radial direction of the limiting hole.

[0012] According to one embodiment of the present invention, the support portion is integrally formed with the carrier belt body.

[0013] According to one embodiment of the present invention, the carrier belt extends along the longitudinal direction, and the carrier belt includes a plurality of the bearing units arranged at intervals along its longitudinal direction.

[0014] According to one embodiment of the present invention, the carrier tape further includes a plurality of positioning holes spaced apart along its longitudinal direction, the positioning holes being disposed through the thickness direction of the carrier tape body.

[0015] According to one embodiment of the present invention, the surface of the bottom wall is provided with an anti-slip layer.

[0016] The beneficial effects of this utility model are as follows: The carrier tape of this utility model is used to carry and store the component to be packaged. The carrier unit includes a receiving cavity for accommodating the component body and a limiting hole for the protrusion structure on one side of the component body to fall into. When the component to be packaged is placed into the receiving cavity, the protrusion structure falls exactly into the limiting hole. By setting the radial cross-sectional area of ​​the limiting hole to be not less than 1 / 5 of the cross-sectional area of ​​the receiving cavity in the radial direction of the limiting hole, the limiting hole has sufficient size to accommodate the protrusion structure of the component to be packaged, which can provide a stable and reliable limiting effect, so that the component to be packaged can be stably placed flat in the receiving cavity. This effectively avoids tilting or flipping due to vibration or bumps during the carrier tape transmission process, which would lead to subsequent production abnormalities and ensure the stability of the component to be packaged and the product quality during the packaging and transmission process. Attached Figure Description

[0017] Figure 1 This is a top view schematic diagram of the carrier belt in the embodiment of this utility model; Figure 2 yes Figure 1 An exploded view of a single carrier unit and the component to be packaged in the mid-carrier tape; Figure 3 middle Figure 1 Cross-sectional view of an embodiment of the middle carrier belt along the AA direction; Figure 4 yes Figure 1 Cross-sectional view of another embodiment with the middle carrier belt along the AA direction; Figure 5 yes Figure 2 A magnified schematic diagram of the central accommodating cavity. Detailed Implementation

[0018] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. Please refer to them. Figures 1 to 5 The figure shown is a preferred embodiment of the present invention.

[0019] It should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the attached drawings, or the usual placement of the product during use. The orientation or positional relationship is only for the convenience of describing the present invention and simplifying the description, and is not intended to 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 the present invention.

[0020] In this utility model, unless otherwise explicitly specified and limited, the terms "set", "connect", "connect", "fixed" and other such terms should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part.

[0021] It should be noted that in the following embodiments and accompanying drawings, components unrelated to this utility model have been omitted and not shown; and for ease of understanding, the size ratios between the components are exaggerated and differ from the actual product.

[0022] Reference Figures 1-3 This invention provides a carrier tape 100 according to one embodiment of the present invention. The carrier tape 100 is used to carry an element 1 to be packaged. The element 1 to be packaged includes an element body 11 and a protrusion structure 12 disposed on one side of the element body 11. The carrier tape 100 includes a carrier tape body 2 and a support unit 3 disposed on the carrier tape body 2.

[0023] The support unit 3 includes a receiving cavity 31 for accommodating the element body 11 and a limiting hole 32 for the protrusion structure 12 to fall into.

[0024] In practical applications, the carrier tape 100 is usually used in conjunction with a cover tape (not shown) to carry and house the component 1 to be packaged in the receiving cavity 31 of the carrier unit 3, and to form a closed package by sealing the cover tape on top of the carrier tape 100, so as to protect the component from contamination and damage during transportation.

[0025] The limiting hole 32 is located at the bottom of the receiving cavity 31. When the component to be packaged 1 is placed into the receiving cavity 31, the protrusion 12 on one side falls into the limiting hole 32. The limiting hole 32 can effectively limit the protrusion 12, so that the component to be packaged 1 can be stably placed flat in the receiving cavity 31 and will not tilt or flip due to vibration or bumps during the transportation process. This effectively avoids problems in subsequent production processes caused by component position deviation, such as inaccurate welding position, and greatly improves the reliability and product quality of semiconductor packaging and electronic component transportation.

[0026] Meanwhile, the limiting hole 32 can also serve as a vacuum hole, facilitating the subsequent application of a vacuum into the accommodating cavity 31 by the relevant mounting equipment, thereby creating a negative pressure environment within the accommodating cavity 31 and stabilizing the adsorption and gripping of the component 1 to be packaged. Since the protruding structure 12 is confined within the limiting hole 32, when a negative pressure is formed within the accommodating cavity 31, the component 1 to be packaged will be subjected to a uniform adsorption force, avoiding component displacement problems caused by uneven adsorption force.

[0027] The radial cross-sectional area of ​​the limiting hole 32 is set to be no less than 1 / 5 of the cross-sectional area of ​​the receiving cavity 31 along the radial direction of the limiting hole 32. In contrast, the diameter of a traditional vacuum hole is very small, typically much smaller than the size of the component 1 to be packaged, and its radial cross-sectional area is generally less than 1 / 9 of the cross-sectional area of ​​the receiving cavity 31 in that direction, making it unable to provide a stable and effective limiting effect for the component 1 to be packaged with the protrusion structure 12. Compared to traditional vacuum holes, the limiting hole 32 in this invention has sufficient size to accommodate the protrusion structure 12 of the component 1 to be packaged, providing a stable and reliable limiting effect.

[0028] When the component to be packaged 1 is placed into the receiving cavity 31, the protrusion structure 12 falls into the limiting hole 32. By setting a suitable radial cross-sectional area ratio between the limiting hole 32 and the receiving cavity 31, the component is effectively constrained in the horizontal direction, thereby avoiding flipping or displacement during transmission and ensuring that the component to be packaged 1 remains stable in the carrier tape 100.

[0029] Of course, the radial cross-sectional shape and size of the limiting hole 32 can be adjusted according to the specific shape and size of the protrusion structure 12 of the component to be packaged 1. For example, when the protrusion structure 12 is rectangular, the radial cross-section of the limiting hole 32 can also be designed as rectangular to achieve more precise matching and limiting; if the size of the protrusion structure 12 is large, the radial cross-sectional area of ​​the limiting hole 32 can be appropriately increased to ensure that the protrusion structure 12 can fall smoothly into the limiting hole 32 and be stably limited.

[0030] Specifically, the carrier tape 100 is configured to extend along the longitudinal direction and includes a plurality of carrier units 3 arranged at intervals along its longitudinal direction. This allows the carrier tape 100 to simultaneously accommodate and store a plurality of components to be packaged 1 to meet the needs of large-scale mass production.

[0031] The carrier tape body 2 has a first surface 21 and a second surface 22 opposite to the first surface 21. The receiving cavity 31 is recessed from the first surface 21 into the second surface 22, which gives the receiving cavity 31 a certain depth, enabling it to better accommodate and protect the component 1 to be packaged. The receiving cavity 31 opens towards the first surface 21 to receive the component 1 to be packaged that passes through the opening and enters the receiving cavity 31.

[0032] Reference Figure 5 The accommodating cavity 31 includes a bottom wall 311 for supporting the component body 11, which can provide a stable support surface for the component body 11. This ensures that the component body 11 is subjected to uniform force when placed on the bottom wall 311, and prevents the component from tilting or being damaged due to uneven force.

[0033] The surface of the bottom wall 311 is provided with an anti-slip layer, which is made of a material with a high coefficient of friction to increase the friction between the component body 11 and the bottom wall 311 and prevent the component body 11 from sliding during transmission.

[0034] The accommodating cavity 31 is provided with sidewalls 312 around the bottom wall 311, which can further restrict the position of the component to be packaged 1, prevent the component to be packaged 1 from sliding out of the accommodating cavity 31 from the side due to external force during the transmission process, and enhance the fixing effect of the component to be packaged 1 in the carrier tape 100.

[0035] The shape of the receiving cavity 31 is adapted to the component body 11, so that it can effectively accommodate the component body 11 and prevent it from shifting significantly due to shaking during transmission. The limiting hole 32 is provided through the bottom wall 311, and its size and shape match the protruding structure 12, ensuring that the protruding structure 12 can fall smoothly into and be limited in the limiting hole 32.

[0036] In practical applications, the size and shape of the accommodating cavity 31 and the limiting hole 32 can be adjusted and optimized according to the different sizes and shapes of the components to be packaged 1.

[0037] This embodiment uses the component to be packaged 1 as a common small-sized electronic component as an example for explanation. The component to be packaged 1 has a rectangular component body 11 and a rectangular protrusion structure 12 provided on one side of the component body 11. The bottom wall 311 of the accommodating cavity 31 is correspondingly rectangular, and the bottom wall length L1 and bottom wall width W1 can be defined. The bottom wall length L1 is set to be not less than the bottom wall width W1.

[0038] The length direction of the bottom wall 311 is perpendicular to the length direction of the carrier tape 100, so that more carrier units 3 can be planned on the carrier tape 100, improving the space utilization of the carrier tape 100, enabling the carrier tape 100 to accommodate more components to be packaged 1 in a limited space, improving production efficiency and reducing production costs.

[0039] The radial cross-section of the limiting hole 32 is also rectangular, and the cross-sectional length L2 and cross-sectional width W2 can be defined. The cross-sectional length L2 is set to be no less than the cross-sectional width W2. The cross-sectional width W2 is no less than half of the bottom wall width W1 to ensure that the limiting hole 32 has sufficient size to accommodate and stably limit the protrusion structure 12 of the component to be packaged 1.

[0040] In addition, the minimum distance between the limiting hole 32 and the side wall 312 is not less than 50μm, so that the limiting hole 32 will not be too close to the side wall 312, avoiding the phenomenon that the bottom wall 311 support structure strength is reduced or the entire component 1 to be packaged falls out of the limiting hole 32 due to the side wall 312 being too close to the limiting hole 32 during processing or use.

[0041] In such Figure 3 In one embodiment shown, the component to be packaged 1 has a single protrusion structure 12, and a limiting hole 32 is provided corresponding to the protrusion structure 12 so that the protrusion structure 12 is completely located in the limiting hole 32.

[0042] like Figure 4 In another embodiment shown, the component to be packaged 1 has two protrusions 12 arranged side by side. The bottom of the accommodating cavity 31 is provided with a limiting hole 32 that can accommodate both protrusions 12 at the same time, so as to achieve common limiting of the two protrusions 12 and ensure that the component to be packaged 1 is stably placed in the accommodating cavity 31.

[0043] The carrier unit 3 also includes a support portion 33 disposed on one side of the second surface 22 of the carrier tape body 2. The portion of the support portion 33 facing the second surface 22 is formed as the bottom wall 311 of the accommodating cavity 31, and a limiting hole 32 is provided through the support portion 33 along its thickness direction. The provision of the support portion 33 enhances the structural strength of the bottom wall 311 of the accommodating cavity 31, enabling it to better withstand the weight of the component 1 to be packaged and the external forces that may be subjected to when carrying it, making it less prone to deformation or damage, and further ensuring the stable placement of the component 1 to be packaged in the carrier tape 100.

[0044] The cross-sectional dimension of the support portion 33 in the radial direction of the limiting hole 32 is larger than that of the receiving cavity 31 in the radial direction of the limiting hole 32, which can provide a more stable support foundation for the receiving cavity 31. When the component 1 to be packaged is placed in the receiving cavity 31, the larger cross-sectional dimension of the support portion 33 can effectively disperse the pressure generated by the weight of the component, reduce the risk of deformation of the bottom wall 311 of the receiving cavity 31 due to long-term heavy pressure, thereby maintaining the stability of the structure of the receiving cavity 31 and ensuring that the component 1 to be packaged is always in a stable placement state.

[0045] In this embodiment, the support part 33 is integrally formed with the carrier tape body 2 to simplify the manufacturing process, enhance the connection strength between the support part 33 and the carrier tape body 2, and avoid the support part 33 from loosening or falling off due to weak connection, thereby affecting the bearing effect of the accommodating cavity 31 on the packaged element 1.

[0046] In addition, the carrier tape 100 may also include a plurality of positioning holes 4 spaced apart along its longitudinal direction, the positioning holes 4 being arranged through the thickness direction of the carrier tape body 2. The positioning holes 4 can provide a precise reference for the positioning of the carrier tape 100 on automated production equipment, ensuring that the operating parts of the relevant equipment are quickly and accurately positioned to each carrier unit 3, so as to perform a series of operations such as placement, packaging or picking of components.

[0047] The carrier tape 100 can be made of plastic or paper materials, which have good processing performance or cost-effectiveness and can meet the needs of different application scenarios.

[0048] In summary, the carrier tape 100 provided by this utility model is equipped with a carrier unit 3 for carrying and storing the component 1 to be packaged. The carrier unit 3 includes a receiving cavity 31 for accommodating the component body 11 and a limiting hole 32 for the protrusion structure 12 disposed on one side of the component body 11 to fall into. When the component 1 to be packaged is placed into the receiving cavity 31, the protrusion structure 12 falls exactly into the limiting hole 32. The limiting hole 32 can effectively limit the protrusion structure 12, so that the component 1 to be packaged can be stably placed flat in the receiving cavity 31. This effectively avoids tilting or flipping caused by vibration or bumps during the transmission of the carrier tape 100, which would lead to subsequent production abnormalities and improve the reliability and product quality of semiconductor packaging and electronic component transportation processes.

[0049] In the embodiments provided by this utility model, it should be understood that the above-described implementation of the structure is merely illustrative. For example, the division of modules is merely a logical functional division. In actual implementation, there may be other division methods. For example, multiple modules or components may be combined or integrated into another device, or some features may be ignored or not executed.

[0050] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A carrier tape for carrying an element to be packaged, the element to be packaged comprising an element body and a protrusion structure disposed on one side of the element body, characterized in that, The carrier belt includes a carrier belt body and a support unit disposed on the carrier belt body; The supporting unit includes a receiving cavity for accommodating the component body and a limiting hole for the protrusion structure to fall into. The limiting hole is located at the bottom of the receiving cavity, and the radial cross-sectional area of ​​the limiting hole is not less than 1 / 5 of the cross-sectional area of ​​the receiving cavity in the radial direction of the limiting hole.

2. The carrier tape according to claim 1, characterized in that, The carrier tape body has a first surface and a second surface opposite to the first surface. The accommodating cavity is recessed from the first surface to the second surface. The accommodating cavity has a bottom wall for supporting the component body. The limiting hole is disposed through the bottom wall.

3. The carrier tape according to claim 2, characterized in that, The radial cross-section of the limiting hole is rectangular, and the cross-sectional length and width can be defined. The cross-sectional length is set to be no less than the cross-sectional width. The bottom wall of the accommodating cavity is rectangular, and the bottom wall length and width can be defined. The bottom wall length is set to be no less than the bottom wall width. The cross-sectional width is no less than half of the bottom wall width.

4. The carrier tape according to claim 2 or 3, characterized in that, The accommodating cavity also includes a sidewall surrounding the bottom wall, and the minimum distance between the limiting hole and the sidewall is not less than 50 μm.

5. The carrier tape according to claim 4, characterized in that, The carrier unit further includes a support portion disposed on one side of the second surface of the carrier body, wherein a portion of the support portion facing the second surface is formed as the bottom wall of the accommodating cavity, and the limiting hole is disposed through the support portion along the thickness direction.

6. The carrier tape according to claim 5, characterized in that, The cross-sectional dimension of the support portion in the radial direction of the limiting hole is larger than the cross-sectional dimension of the accommodating cavity in the radial direction of the limiting hole.

7. The carrier tape according to claim 5 or 6, characterized in that, The support portion is integrally formed with the carrier belt body.

8. The carrier tape according to any one of claims 1-7, characterized in that, The carrier belt extends along its longitudinal direction and includes a plurality of the carrier units arranged at intervals along its longitudinal direction.

9. The carrier tape according to claim 8, characterized in that, The carrier tape also includes a plurality of positioning holes spaced apart along its longitudinal direction, the positioning holes being arranged through the thickness direction of the carrier tape body.

10. The carrier tape according to claim 2, characterized in that, The surface of the bottom wall is provided with an anti-slip layer.

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