High-toughness copper-based bonding wire

Abstract

The utility model discloses a high-toughness copper-based bonding wire which comprises a bonding wire body, and the bonding wire body comprises a copper wire base material. The surface of the copper wire base material is coated with a toughening wear-resistant layer; the bonding wire further comprises a reel protection assembly, the reel protection assembly comprises a reel and a protection shell, the bonding wire body is wound around the reel, and the protection shell comprises a first semicircular protection shell, a second semicircular protection shell and a locking mechanism. And the semicircular protective shell I and the semicircular protective shell II are buckled together through a locking mechanism to form a circular tube, and the circular tube is sleeved on the reel to protect the bonding wire body on the reel. According to the utility model, the reel protection assembly is arranged, the reel protection assembly comprises the reel and the protection shell, the protection shell can protect the bonding wire body on the reel, and the protection shell is convenient to disassemble and assemble.

Description

Technical Field

[0001] This utility model relates to the field of bonding wire technology, specifically to a high-toughness copper-based bonding wire. Background Technology

[0002] Bonding wire is one of the four basic materials in the packaging industry. It is an internal lead material with excellent electrical, thermal, and mechanical properties and excellent stability. As an internal lead for packaging, bonding wire is one of the essential basic materials in the manufacturing process of integrated circuits and semiconductor discrete devices.

[0003] In the existing technology, when nickel-plated copper-based bonding wires are wound and carried, plastic cylindrical skeletons are usually used. However, ordinary plastic cylindrical skeletons still have some drawbacks when used to carry palladium-plated copper-based bonding wires. The most obvious drawback is that after the winding is completed, it is impossible to protect the bonding wires carried on it. Therefore, during subsequent transportation and packaging, the bonding wires carried are easily damaged due to external factors. Utility Model Content

[0004] The problem to be solved by this utility model is to provide a high-toughness copper-based bonding wire by setting a winding wheel protection component, which includes a winding wheel and a protective shell. The protective shell can protect the bonding wire body on the winding wheel, and the protective shell is easy to install and remove.

[0005] The technical solution provided by this utility model to solve the above problems is as follows: a high-toughness copper-based bonding wire, comprising a bonding wire body, wherein the bonding wire body comprises a copper wire substrate; the surface of the copper wire substrate is coated with a toughening and wear-resistant layer.

[0006] It also includes a winding wheel protection assembly, which includes a winding wheel and a protective housing. The bonding wire body is wound on the winding wheel. The protective housing includes a semi-circular protective housing one, a semi-circular protective housing two, and a locking mechanism. The semi-circular protective housing one and the semi-circular protective housing two are fastened together by the locking mechanism to form a cylindrical sleeve on the winding wheel to protect the bonding wire body on the winding wheel.

[0007] Preferably, the protective housing is further provided with a rotation limiting mechanism, which is used to limit the rotation of the protective housing after it is installed on the winding wheel.

[0008] Preferably, the rotation limiting mechanism includes a limiting groove and a limiting protrusion. The limiting groove is disposed on the side plates on both sides of the winding wheel, and the limiting protrusion is disposed at both ends of the protective shell.

[0009] Preferably, the locking mechanism has two sets and is located at the connection between the two semi-circular protective shells.

[0010] Preferably, the locking mechanism includes a connecting rod, a locking rod, and an elastic element. The connecting rod is mounted on a semi-circular protective shell. The semi-circular protective shell has a mounting cavity for mounting the locking rod. The mounting cavity has a movable hole for the connecting rod to extend into. One end of the elastic element is connected to the bottom of the mounting cavity, and the other end is connected to the locking rod. After the connecting rod passes through the movable hole and extends into the mounting cavity, it can be engaged with the locking rod.

[0011] Preferably, the upper end face of the connecting rod is provided with a locking groove, and the lower end of the locking rod is provided with a hook that can engage with the locking groove.

[0012] Preferably, one side of the hook is provided with an inclined surface.

[0013] Preferably, the elastic element is a spring.

[0014] Preferably, the end of the locking rod away from the elastic element extends out of the mounting cavity.

[0015] Preferably, the toughened wear-resistant layer comprises a toughening layer and a polymer wear-resistant layer arranged from the inside out.

[0016] Compared with the prior art, the advantages of this utility model are: by setting up a winding wheel protection component, the winding wheel protection component includes a winding wheel and a protective shell. The protective shell can protect the bonding wire body on the winding wheel, and the protective shell is easy to install and remove. Attached Figure Description

[0017] The accompanying drawings, which are provided to further illustrate the present invention and constitute a part of the present invention, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0018] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0019] Figure 2 This is a cross-sectional view of the protective shell of this utility model after it has been removed;

[0020] Figure 3 This is a top view of the protective casing of this utility model;

[0021] Figure 4 This is a cross-sectional view of the protective shell of this utility model;

[0022] Figure 5 This is the utility model Figure 4 Enlarged diagram of point A in the middle.

[0023] The attached diagram is labeled as follows: 1. Side plate, 2. Semi-circular protective shell one, 3. Limiting groove, 4. Winding wheel, 5. Bonding wire body, 6. Limiting protrusion, 7. Connecting rod, 8. Locking rod, 9. Semi-circular protective shell two, 10. Mounting cavity, 11. Spring, 12. Hook, 13. Inclined surface, 14. Locking groove, 15. Movable hole. Detailed Implementation

[0024] The following will describe in detail the implementation of this utility model with reference to the accompanying drawings and embodiments, so that the implementation of this utility model can be fully understood and carried out based on how technical means are used to solve technical problems and achieve technical effects.

[0025] In the description of this utility model, it should be noted that the directional terms such as "center", "horizontal", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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. They should not be construed as limiting the specific protection scope of this utility model.

[0026] 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. Thus, the use of "first" and "second" to define a feature may explicitly or implicitly include one or more of that feature. In this description of the utility model, "a number" means two or more, unless otherwise explicitly specified.

[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "assembly," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can also refer to a mechanical connection; they can refer to a direct connection or a connection through an intermediate medium; or they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0029] It should also be understood that the terminology used in this specification of embodiments of the present invention is for the purpose of describing particular embodiments only and is not intended to limit the embodiments of the present invention. As used in this specification of embodiments of the present invention and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0030] As shown in the attached drawings, a high-toughness copper-based bonding wire includes a bonding wire body 5, which includes a copper wire substrate; the surface of the copper wire substrate is covered with a toughening and wear-resistant layer.

[0031] It also includes a winding wheel 4 protection assembly, which includes a winding wheel 4 and a protective shell. The bonding wire body 5 is wound on the winding wheel 4. The protective shell includes a semi-circular protective shell 1 2, a semi-circular protective shell 2 9 and a locking mechanism. The semi-circular protective shell 1 2 and the semi-circular protective shell 2 9 are fastened together by the locking mechanism to form a cylindrical sleeve on the winding wheel 4 to protect the bonding wire body 5 on the winding wheel 4.

[0032] Specifically, a rotation limiting mechanism is also provided on the protective shell. The rotation limiting mechanism is used to limit the rotation of the protective shell after it is installed on the winding wheel 4. Specifically, the rotation limiting mechanism includes a limiting groove 3 and a limiting protrusion 6. The limiting groove 3 is provided on the side plates 1 on both sides of the winding wheel 4, and the limiting protrusion 6 is provided at both ends of the protective shell. During installation, the limiting protrusions on the semi-circular protective shell 1 2 and the semi-circular protective shell 2 are first aligned with the limiting grooves on the side plates, and then the semi-circular protective shell 1 2 and the semi-circular protective shell 2 are pushed in so that the limiting protrusions enter the limiting grooves.

[0033] In another embodiment of this utility model, the locking mechanism has two sets and is arranged at the connection of the two semi-circular protective shells.

[0034] In this embodiment, specifically, the locking mechanism includes a connecting rod 7, a locking rod 8, and an elastic element. The connecting rod 7 is mounted on a semi-circular protective shell 2. The semi-circular protective shell 9 is provided with a mounting cavity 10 for mounting the locking rod 8. The mounting cavity 10 is provided with a movable hole 15 for the connecting rod 7 to extend into. One end of the elastic element is connected to the bottom of the mounting cavity 10, and the other end is connected to the locking rod 8. After the connecting rod 7 passes through the movable hole 15 and extends into the mounting cavity 10, it can be engaged with the locking rod 8.

[0035] The connecting rod 7 has a locking groove 14 on its upper end face, and the locking rod 8 has a hook 12 at its lower end that engages with the locking groove 14. Furthermore, one side of the hook 12 has an inclined surface 13. Specifically, the elastic element is a spring 11; the end of the locking rod 8 away from the elastic element extends out of the mounting cavity 10.

[0036] In the above scheme, the specific installation process of the protective shell is as follows: Align the limiting protrusions on the semi-circular protective shell 1 and semi-circular protective shell 2 with the limiting grooves on the side plate, and then push the semi-circular protective shell 1 and semi-circular protective shell 2 into the limiting grooves, until the connecting rod on the semi-circular protective shell 1 passes through the movable hole and enters the installation cavity to contact the inclined surface of the hook. The connecting rod squeezes the hook, causing the hook to compress the spring downwards until the upper end of the hook enters the locking groove, and the protective shell installation is completed. When disassembling, simply press the upper end of the locking rod to compress the spring downwards, and the hook head will disengage from the locking groove, thus separating the semi-circular protective shell 1 and semi-circular protective shell 2.

[0037] In another embodiment of this utility model, the toughened wear-resistant layer includes a toughening layer and a polymeric wear-resistant layer arranged from the inside out; specifically, the toughening layer is a glass fiber mesh; the polymeric wear-resistant layer is mainly composed of a base material, fillers and other additives, wherein the organic polymer modified epoxy resin is used as the base material of the coating, and the other components are bonded to the surface of the friction component to form a continuous film.

[0038] The above description only illustrates the preferred embodiment of this utility model and should not be construed as limiting the scope of the claims. This utility model is not limited to the above embodiments, and variations in its specific structure are permitted. All changes made within the scope of the independent claims of this utility model are also within the scope of protection of this utility model.

Claims

1. A high-toughness copper-based bonding wire, comprising a bonding wire body (5), wherein the bonding wire body (5) comprises a copper wire substrate; characterized in that: The surface of the copper wire substrate is coated with a toughened and wear-resistant layer. It also includes a winding wheel (4) protection assembly, which includes a winding wheel (4) and a protective shell. The bonding wire body (5) is wound on the winding wheel (4). The protective shell includes a semi-circular protective shell one (2), a semi-circular protective shell two (9) and a locking mechanism. The semi-circular protective shell one (2) and the semi-circular protective shell two (9) are fastened together by the locking mechanism to form a cylindrical sleeve on the winding wheel (4) to protect the bonding wire body (5) on the winding wheel (4).

2. The high-toughness copper-based bonding wire according to claim 1, characterized in that: The protective housing is also provided with a rotation limiting mechanism, which is used to limit the rotation of the protective housing after it is installed on the winding wheel (4).

3. The high-toughness copper-based bonding wire according to claim 2, characterized in that: The rotation limiting mechanism includes a limiting groove (3) and a limiting protrusion (6). The limiting groove (3) is provided on the side plates (1) on both sides of the winding wheel (4), and the limiting protrusion (6) is provided at both ends of the protective shell.

4. The high-toughness copper-based bonding wire according to claim 1, characterized in that: The locking mechanism consists of two sets and is located at the connection point of the two semi-circular protective shells.

5. The high-toughness copper-based bonding wire according to claim 4, characterized in that: The locking mechanism includes a connecting rod (7), a locking rod (8), and an elastic element. The connecting rod (7) is mounted on a semi-circular protective shell (2). The semi-circular protective shell (9) is provided with a mounting cavity (10) for mounting the locking rod (8). The mounting cavity (10) is provided with an movable hole (15) for the connecting rod (7) to extend into. One end of the elastic element is connected to the bottom of the mounting cavity (10), and the other end is connected to the locking rod (8). After the connecting rod (7) passes through the movable hole (15) and extends into the mounting cavity (10), it can be engaged with the locking rod (8).

6. The high-toughness copper-based bonding wire according to claim 5, characterized in that: The upper end face of the connecting rod (7) is provided with a locking groove (14), and the lower end of the locking rod (8) is provided with a hook (12) that can engage with the locking groove (14).

7. The high-toughness copper-based bonding wire according to claim 6, characterized in that: The hook (12) has an inclined surface (13) on one side.

8. The high-toughness copper-based bonding wire according to claim 5, characterized in that: The elastic element is a spring (11).

9. The high-toughness copper-based bonding wire according to claim 5, characterized in that: The locking rod (8) extends out of the mounting cavity (10) at the end away from the elastic element.

10. The high-toughness copper-based bonding wire according to claim 1, characterized in that: The toughened and wear-resistant layer includes a toughening layer and a polymer wear-resistant layer arranged from the inside out.

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