Jig for detecting bonding wire arc

Abstract

The utility model discloses a jig for detecting a bonding wire arc, which comprises a base, a supporting rod and a bearing seat, the bearing seat can be used for bearing a product to be detected, the lower end of the supporting rod is rotatably mounted on the base through a first rotating shaft, and the bearing seat is rotatably mounted at the upper end of the supporting rod through a second rotating shaft. And the central axis of the first rotating shaft extends along the X-axis direction, and the central axis of the second rotating shaft extends along the Y-axis direction. According to the utility model, the bonding wire arc can be conveniently detected, 360-degree detection can be realized, and the condition of the bonding wire arc can be comprehensively detected.

Description

Technical Field

[0001] The utility model relates to the technical field of jigs, and in particular to a jig for detecting bonding wire arcs. Background Art

[0002] Lead frame is the chip carrier of integrated circuit. It is a key structural component that uses bonding wires (metal wires) to realize the electrical connection between the lead end of the chip's internal circuit and the external lead to form an electrical circuit. During production, the chip is first mounted on the surface of the base island on the lead frame, and then the chip is welded to the pins on the lead frame through bonding wires. After the product completes the wire bonding process, it is necessary to observe through a microscope whether the height of the bonding wire arc on the lead frame, the spacing between adjacent bonding wires and other indicators meet the standards to monitor the quality of the bonding wire.

[0003] Currently, the detection of bonding wire arcs is done manually. Workers place the product on a tray, then lift the tray by hand and move it under a microscope for observation and inspection. However, the method of lifting the tray by hand makes the inspection inconvenient, the range of product conversion angles is limited, and the bonding wire arc cannot be fully inspected. Utility Model Content

[0004] The utility model aims at the deficiencies in the prior art and provides a jig for detecting bonding wire arcs, which can conveniently detect bonding wire arcs and can realize 360-degree detection, and can comprehensively detect the bonding wire arc conditions.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A jig for detecting bonding wire arcs comprises a base, a support rod and a bearing seat, wherein the bearing seat can be used to carry a product to be detected, the lower end of the support rod is rotatably mounted on the base via a first rotating shaft, and the bearing seat is rotatably mounted on the upper end of the support rod via a second rotating shaft, the central axis of the first rotating shaft extends along the X-axis direction, and the central axis of the second rotating shaft extends along the Y-axis direction.

[0007] The base, the support rod and the bearing seat are arranged, the lower end of the support rod is rotatably mounted on the base through the first rotating shaft, the bearing seat is rotatably mounted on the upper end of the support rod through the second rotating shaft, and the central axis of the first rotating shaft extends along the X-axis direction, and the central axis of the second rotating shaft extends along the Y-axis direction. During detection, the product is placed on the bearing seat, and rotating the support rod can make the support rod drive the bearing seat and the product to rotate around the first rotating shaft at different angles; rotating the bearing seat can make the bearing seat drive the product to rotate around the second rotating shaft at different angles. The fixture can be directly placed under a microscope to detect bonding wire arcs, without the need to lift the fixture by hand, which is convenient for detecting bonding wire arcs, and the rotation directions of the support rod and the bearing seat are perpendicular to each other, so that the fixture can achieve 360-degree detection, and can comprehensively detect the bonding wire arc conditions, thereby improving detection accuracy.

[0008] As a preferred solution, a first adjustment component is provided between the base and the support rod, and the support rod is rotatably adjusted and mounted on the base through the first adjustment component to adjust the angle between the support rod and the base.

[0009] As a preferred solution, the first adjustment component includes a limit member and a rotating member, the limit member is fixedly connected to one end of the first rotating shaft, and the rotating member is threadedly connected to the other end of the first rotating shaft. During assembly, the limit member and the rotating member are both in contact with the base.

[0010] As a preferred solution, the rotating member is a hand screw.

[0011] As a preferred solution, a first connecting seat is provided on the base, the first connecting seat protrudes from the upper surface of the base, and the lower end of the support rod is rotatably mounted on the first connecting seat through the first rotating shaft. During assembly, the limiting member and the rotating member are both in contact with the outer wall of the first connecting seat.

[0012] As a preferred solution, a second adjustment component is provided between the support rod and the bearing seat, and the bearing seat is rotatably adjusted and installed on the upper end of the support rod through the second adjustment component to adjust the angle between the bearing seat and the support rod.

[0013] As a preferred solution, a second connecting seat is provided on the bearing seat, the second connecting seat protrudes from the lower surface of the bearing seat, and the second connecting seat is rotatably mounted on the support rod via the second rotating shaft.

[0014] As a preferred solution, it further comprises a tray, which is detachably mounted on the bearing seat, and the product to be inspected can be placed on the tray.

[0015] As a preferred embodiment, a groove is provided on the upper surface of the bearing seat, and the tray is detachably installed in the groove. A locking screw is also provided on the bearing seat, and one end of the locking screw extends into the groove and can abut against the tray to clamp the tray in the groove.

[0016] As a preferred solution, the support seat includes a base plate and baffles spaced apart on both sides of the base plate, the base plate and the two baffles form the groove, the locking screw is disposed on the baffle, and openings are formed at both ends of the groove for the tray to extend outward.

[0017] Compared with the prior art, the utility model has obvious advantages and beneficial effects. Specifically, by setting a base, a support rod and a bearing seat, the lower end of the support rod can be rotatably installed on the base through a first rotating shaft, and the bearing seat can be rotatably installed on the upper end of the support rod through a second rotating shaft, and the central axis of the first rotating shaft extends along the X-axis direction, and the central axis of the second rotating shaft extends along the Y-axis direction. During detection, the product is placed on the bearing seat, and rotating the support rod can make the support rod drive the bearing seat and the product to rotate around the first rotating shaft at different angles; rotating the bearing seat can make the bearing seat drive the product to rotate around the second rotating shaft at different angles. The fixture can be directly placed under a microscope to detect bonding wire arcs. There is no need to lift the fixture by hand, which is convenient for detecting bonding wire arcs. The rotation directions of the support rod and the bearing seat are perpendicular to each other, so that the fixture can achieve 360-degree detection, and the bonding wire arc situation can be fully detected, thereby improving detection accuracy.

[0018] In order to more clearly explain the structural features, technical means and specific purposes and functions achieved by the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments: BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the assembly structure of an embodiment of the utility model;

[0020] Figure 2 It is an exploded schematic diagram of an embodiment of the utility model;

[0021] Figure 3 It is a cross-sectional schematic diagram of an embodiment of the utility model;

[0022] Figure 4 This is a three-dimensional schematic diagram of a first use state of an embodiment of the utility model;

[0023] Figure 5 It is a three-dimensional schematic diagram of a second use state of an embodiment of the utility model.

[0024] Description of the accompanying drawings:

[0025] 10-base 11-first connecting seat 111-connecting block

[0026] 112-axis hole 12-circular bottom plate 121-through hole

[0027] 20-support rod 30-carrying seat 301-base plate

[0028] 302- baffle 31- second connection seat 32- groove

[0029] 321- opening 33- locking screw 40- tray

[0030] 50-first rotating shaft 501-threaded hole 51-first adjusting component

[0031] 511- first position limiting member 512- first rotating member 513- threaded section

[0032] 514-head 60-second rotating shaft 61-second adjusting component

[0033] 611- second limiter 612- second rotation DETAILED DESCRIPTION

[0034] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the position or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0036] like Figure 1-5As shown, the utility model discloses a fixture for detecting bonding wire arcs, including a base 10, a support rod 20 and a bearing seat 30, wherein the bearing seat 30 can be used to carry a product to be detected, wherein the product is a lead frame or a semiconductor device welded with a bonding wire, and the lower end of the support rod 20 is rotatably mounted on the base 10 through a first rotating shaft 50, and the bearing seat 30 is rotatably mounted on the upper end of the support rod 20 through a second rotating shaft 60, wherein the central axis of the first rotating shaft 50 extends along the X-axis direction, and the central axis of the second rotating shaft 60 extends along the Y-axis direction.

[0037] A first adjusting component 51 is provided between the base 10 and the support rod 20, and the support rod 20 is rotatably adjusted and installed on the base 10 through the first adjusting component 51 to adjust the angle between the support rod 20 and the base 10; by providing the first adjusting component 51 between the base 10 and the support rod 20, the staff uses the first adjusting component 51 to adjust the angle between the support rod 20 and the base 10, so that the support rod 20 drives the supporting seat 30 and the product to be inspected to rotate to different angles, thereby facilitating the staff to observe the bonding wire arc on the inspection product from different angles, thereby improving the inspection efficiency.

[0038] The first adjustment component 51 includes a first limit member 511 and a first rotating member 512. The first limit member 511 is fixedly connected to one end of the first rotating shaft 50. Specifically, the first limit member 511 and the first rotating shaft 50 are integrally formed. The first limit member 511 is an annular limit plate. The first rotating member 512 is threadedly connected to the other end of the first rotating shaft 50. When assembling, the first limit member 511 and the first rotating member 512 are both in contact with the base 10. When adjusting, first loosen the first rotating member 512 and then rotate it. Move the support rod 20 to a suitable angle, and then tighten the first rotating member 512, so that the first limit member 511 and the first rotating member 512 are in contact with the base 10, so that the support rod 20 and the base 10 are clamped together to complete the adjustment; by setting a first adjustment component 51 composed of a first limit member 511 and a first rotating member 512, the first limit member 511 is fixed at one end of the first rotating shaft 50, and the first rotating member 512 is threadedly connected to the other end of the first rotating shaft 50, so that the first adjustment component 51 has a reasonable structure and is easy to adjust.

[0039] It should be noted that the first adjustment component 51 may also include a movable pin (not shown), a first socket (not shown) and a plurality of second sockets (not shown), wherein the first socket is arranged on the base 10, and the plurality of second sockets are distributed in a ring shape on the support rod 20. When adjusting, the support rod 20 is first rotated to a suitable angle, and then the movable pin is inserted into the first socket and the second socket in turn to limit the rotation of the support rod 20 relative to the base 10 to complete the adjustment.

[0040] The first rotating member 512 is a hand screw. Specifically, a threaded hole 501 is provided on the first rotating shaft 50. During assembly, the threaded section 513 on the hand screw is threadedly connected to the threaded hole 501, and the head 514 on the hand screw abuts against the base 10. It can be understood that the positions of the threaded section 513 and the threaded hole 501 are interchangeable and can also achieve the same effect. By using a hand screw, the staff can directly adjust the hand screw by rotating it with their fingers, which is easy to operate.

[0041] The base 10 is provided with a first connecting seat 11, and the first connecting seat 11 protrudes from the upper surface of the base 10. The lower end of the support rod 20 can be rotatably mounted on the first connecting seat 11 through the first rotating shaft 50. During assembly, the first limiting member 511 and the first rotating member 512 are both in contact with the outer wall of the first connecting seat 11. By providing the first connecting seat 11 protruding from the upper surface of the base 10 on the base 10, the support rod 20 can be rotatably mounted on the first connecting seat 11 through the first rotating shaft 50, thereby facilitating the installation and disassembly of the support rod 20, and facilitating the rotation of the first rotating member 512.

[0042] The first connecting seat 11 includes two connecting blocks 111 set at a distance from each other, and the two connecting blocks 111 are each provided with an axial hole 112. The first rotating shaft 50 is passed through the two axial holes 112. The first limiting member 511 abuts against one of the first connecting blocks 111, and the first rotating member 512 abuts against the other first connecting block 111. Specifically, the first connecting block 111 is integrally formed with the base 10.

[0043] The base 10 is provided with a circular bottom plate 12, the first connecting seat 11 is arranged at the center of the circular bottom plate 12, and the circular bottom plate 12 is provided with a plurality of through holes 121, and the plurality of through holes 121 surround the circumferential outer side of the first connecting seat 11; by providing a plurality of through holes 121 on the circular bottom plate 12, the material of the circular bottom plate 12 can be saved, thereby reducing the material cost and weight of the entire base 10.

[0044] A second adjusting component 61 is provided between the support rod 20 and the bearing seat 30. The bearing seat 30 is rotatably adjusted and installed on the upper end of the support rod 20 through the second adjusting component 61 to adjust the angle between the bearing seat 30 and the support rod 20. The second adjusting component 61 includes a second limit member 611 and a second rotating member 612. It can be understood that the structure and principle of the second adjusting component 61 are the same as the structure and principle of the first adjusting component 51, so they are not repeated here. By setting the second adjusting component 61 between the support rod 20 and the bearing seat 30, the staff uses the second adjusting component 61 to adjust the angle between the bearing seat 30 and the support rod 20, so that the bearing seat 30 drives the product to be inspected to rotate to different angles, thereby facilitating the staff to observe the bonding wire arc on the inspection product from different angles, thereby improving the inspection efficiency.

[0045] The supporting seat 30 is provided with a second connecting seat 31, and the second connecting seat 31 protrudes from the lower surface of the supporting seat 30. The second connecting seat 31 can be rotatably installed on the support rod 20 through the second rotating shaft 60. Specifically, the second connecting seat 31 has the same structure as the first connecting seat 11, so it is not repeated here.

[0046] The utility model also includes a tray 40, which can be detachably mounted on the support seat 30, and the product to be inspected can be placed on the tray 40; by setting the tray 40, the tray 40 can be detachably mounted on the support seat 30, so that trays 40 of different widths can be replaced as needed to adapt to products of different widths, and the utility model has good versatility.

[0047] The upper surface of the bearing seat 30 is provided with a groove 32, and the tray 40 can be detachably installed in the groove 32. The bearing seat 30 is also provided with a locking screw 33, one end of the locking screw 33 extends into the groove 32 and can abut against the tray 40 so that the tray 40 is clamped in the groove 32; by providing the groove 32 and the locking screw 33 on the bearing seat 30, during assembly, the tray 40 is first installed in the groove 32, and then the locking screw 33 is tightened so that one end of the locking screw 33 extends into the groove 32 to clamp the tray 40 in the groove 32 to complete the installation of the tray 40. When the tray 40 needs to be replaced, the locking screw 33 can be loosened to remove the tray 40 from the groove 32. The assembly and disassembly is convenient, easy to operate, and efficient.

[0048] The supporting seat 30 includes a base plate 301 and baffles 302 spaced apart on both sides of the base plate 301 in the Y-axis direction. The base plate 301 and the two baffles 302 form the groove 32. The locking screw 33 is arranged on the baffle 302. Both ends of the groove 32 along the X-axis direction are formed with openings 321 for the tray 40 to extend outward. Specifically, the second connecting seat 31 is arranged on the lower surface of the base plate 301. Two locking screws 33 are provided. The central axis of the locking screw 33 extends along the Y-axis direction. The two locking screws 33 are arranged side by side on the same baffle along the X-axis direction. On 302, the locking screw 33 is a hand-tightened screw. It can be understood that the locking screw 33 can also be set on the two baffles 302 as needed; by setting a supporting base 30 composed of a base plate 301 and two baffles 302, a locking screw 33 is set on the baffle 302, and both ends of the groove 32 along the X-axis direction are formed with openings 321 for the tray 40 to extend outward. During inspection, the tray 40 can be pushed out of the opening 321 in different directions to a suitable length, thereby moving the product to be inspected on the tray 40 to a suitable position, which is convenient for observing and inspecting the product.

[0049] It is understandable that, in the present invention, the tray 40 can also be detachably connected to the bearing seat 30 via a snap-fit ​​structure (not shown).

[0050] The method of using the utility model is as follows: the staff first places the product to be inspected in the tray 40, and then moves the entire fixture under the microscope to observe the bonding wire arc on the product through the microscope; when adjusting the angle of the support rod 20, loosen the first rotating member 512, rotate the support rod 20 by hand, the support rod 20 drives the supporting seat 30, the tray 40 and the product to rotate to a certain angle, and then lock the first rotating member 512 to carry out the next step of observation and inspection of the product; when adjusting the angle of the supporting seat 30, loosen the second rotating member 612, rotate the supporting seat 30 by hand, the supporting seat 30 drives the tray 40 and the product to rotate to a certain angle, and then lock the second rotating member 612 to carry out the next step of observation and inspection of the product; when adjusting the tray 40, first loosen the locking nut, and then push the tray 40 to move linearly in the groove 32 along the X-axis direction, so that the product to be inspected is aligned with the microscope, and then tighten the locking screw 33 to clamp the tray 40 in the groove 32 to carry out the next step of observation and inspection of the product.

[0051] In summary, the utility model is provided with a base 10, a support rod 20 and a bearing seat 30. The lower end of the support rod 20 is rotatably mounted on the base 10 through a first rotating shaft 50, and the bearing seat 30 is rotatably mounted on the upper end of the support rod 20 through a second rotating shaft 60. The central axis of the first rotating shaft 50 extends along the X-axis direction, and the central axis of the second rotating shaft 60 extends along the Y-axis direction. During detection, the product is placed on the bearing seat 30, and rotating the support rod 20 can make the support rod 20 drive the bearing seat 30 and the product to rotate around the first rotating shaft 50 at different angles; rotating the bearing seat 30 can make the bearing seat 30 drive the product to rotate around the second rotating shaft 60 at different angles. The fixture can be directly placed under a microscope to detect bonding wire arcs. There is no need to lift the fixture by hand, which is convenient for detecting bonding wire arcs. In addition, the rotation directions of the support rod 20 and the bearing seat 30 are perpendicular to each other, so that the fixture can achieve 360-degree detection, which can comprehensively detect the bonding wire arc and improve the detection accuracy.

[0052] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Therefore, any modification, equivalent replacement, improvement, etc. made to the above embodiment based on the technical practice of the present invention still falls within the scope of the technical solution of the present invention.

Claims

1. A tool for detecting bonding wire arcs, characterized in that: It includes a base, a support rod and a bearing seat, the bearing seat can be used to carry the product to be tested, the lower end of the support rod is rotatably mounted on the base through a first rotating shaft, and the bearing seat is rotatably mounted on the upper end of the support rod through a second rotating shaft, the central axis of the first rotating shaft extends along the X-axis direction, and the central axis of the second rotating shaft extends along the Y-axis direction.

2. The bonding wire arc detection jig according to claim 1, characterized in that: A first adjusting component is provided between the base and the support rod, and the support rod is rotatably adjusted and installed on the base through the first adjusting component to adjust the angle between the support rod and the base.

3. The bonding wire arc detection jig according to claim 2, characterized in that: The first adjustment component includes a limit member and a rotating member. The limit member is fixedly connected to one end of the first rotating shaft, and the rotating member is threadedly connected to the other end of the first rotating shaft. During assembly, the limit member and the rotating member are both in contact with the base.

4. The bonding wire arc detection jig according to claim 3, characterized in that: The rotating part is a hand screw.

5. The bonding wire arc detection jig according to claim 3, characterized in that: The base is provided with a first connecting seat, which protrudes from the upper surface of the base. The lower end of the support rod is rotatably mounted on the first connecting seat through the first rotating shaft. During assembly, the limiting member and the rotating member are both in contact with the outer side wall of the first connecting seat.

6. The bonding wire arc detection jig according to claim 1, characterized in that: A second adjusting component is provided between the support rod and the bearing seat, and the bearing seat is rotatably adjusted and installed on the upper end of the support rod through the second adjusting component to adjust the angle between the bearing seat and the support rod.

7. The bonding wire arc detection tool according to claim 6, characterized in that: The bearing seat is provided with a second connecting seat, the second connecting seat protrudes from the lower surface of the bearing seat, and the second connecting seat is rotatably mounted on the supporting rod through the second rotating shaft.

8. The bonding wire arc detection tool according to any one of claims 1 to 7, characterized in that: It also includes a tray, which can be detachably mounted on the bearing seat, and the product to be inspected can be placed on the tray.

9. The bonding wire arc detection tool according to claim 8, characterized in that: The upper surface of the bearing seat is provided with a groove, and the tray is detachably installed in the groove. A locking screw is also provided on the bearing seat, and one end of the locking screw extends into the groove and can abut against the tray so that the tray is clamped in the groove.

10. The bonding wire arc detection tool according to claim 9, characterized in that: The bearing seat includes a base plate and baffles spaced apart on both sides of the base plate, the base plate and the two baffles form the groove, the locking screw is arranged on the baffle, and openings are formed at both ends of the groove for the tray to extend outward.

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