Nitrogen protection sealing device for bonding track

Abstract

The utility model relates to the technical field of packaging equipment, and discloses a bonding track nitrogen protection sealing device which comprises a workbench, a placement groove is formed in the workbench, a frame is arranged in the placement groove, a plurality of bonding units are arranged on the frame, and a first cover plate and a second cover plate are arranged above the frame. One end of the first cover plate is connected with a bonding module, the first cover plate is provided with a working window, the second cover plate is connected with a spring, one end of the second cover plate is slidably connected with the workbench, and the first cover plate and the second cover plate are mutually decoupled; in the whole bonding process, the sealing and shielding effects are achieved through the first cover plate and the second cover plate, nitrogen loss caused by excessive loss of nitrogen can be avoided, other driving structures do not need to be additionally arranged to drive the cover plates to move, the overall structure is simple, the nitrogen loss can be reduced, meanwhile, the structure of equipment is simplified, and the cost is reduced. And the use cost of equipment is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of packaging equipment, and in particular to a bonding track nitrogen protection sealing device. Background Art

[0002] Nitrogen-protected ultrasonic wire bonding machine is a device specially used to achieve bonding connections between wires (such as copper wires, etc.) and chips, frames and other components through ultrasonic energy in a nitrogen-protected environment.

[0003] During bonding, the chip and frame corresponding to the pressure plate window of the sealed track of this bonding machine are exposed to the environment, resulting in poor antioxidant effect and high nitrogen consumption. To address this problem, the existing technology adopts an improvement method: by providing a cover plate, and controlling the cover plate separately by an additional drive, cooperating with the bond head to move, leaking out the unit that needs to be operated; however, in this solution, the bond head and the cover plate move separately, which not only increases the complexity of the mechanical structure and increases the manufacturing cost, but also leads to a longer bonding cycle, thereby affecting production capacity.

[0004] Therefore, a bonding track nitrogen protection sealing device is urgently needed to solve the above problems.

[0005] The above content is only used to assist in understanding the technical solution of this application and does not constitute an admission that the above content is prior art. Utility Model Content

[0006] The main purpose of this application is to provide a nitrogen protection sealing device for a bonding track to solve the problem that during the bonding process of the existing bonding machine, the cover plate and the bonding head are driven separately, resulting in a complex equipment structure and affecting production capacity.

[0007] To achieve the above-mentioned purpose, the present application provides a bonding track nitrogen protection sealing device, including a workbench, a placement groove is provided on the workbench, a frame is provided in the placement groove, a number of bonding units are provided on the frame, and a first cover plate and a second cover plate are provided above the frame, one end of the first cover plate is connected to the bonding module, and a working window is provided on the first cover plate, a spring is connected to the second cover plate, one end of the second cover plate is slidably connected to the workbench, and the first cover plate and the second cover plate are decoupled from each other.

[0008] As a preferred solution of the present application, it further includes a pressing plate, which is arranged between the first cover plate and the frame, and is used to press the frame.

[0009] As a preferred solution of the present application, the working window passes through the first cover plate and exposes the pressure plate, and the porcelain nozzle on the bonding module extends into the working window.

[0010] As a preferred solution of the present application, it further includes a lifting component, which is connected to both sides of the pressing plate and is used to lift the pressing plate.

[0011] As a preferred solution of the present application, the surface of the first cover plate is flush with the surface of the second cover plate, and the size of the first cover plate is larger than the size of the second cover plate.

[0012] As a preferred solution of the present application, the lifting assembly includes a motor, a cam, and a lifting platform. The cam is provided at the output end of the motor, the bottom of the lifting platform is connected to the cam, and the two cantilevers on the lifting platform are connected to both sides of the pressure plate.

[0013] As a preferred solution of the present application, it further includes through holes. A plurality of through holes are opened in the middle portion of the pressure plate, and the sizes of the plurality of through holes are adapted to the size of the working window.

[0014] As a preferred solution of the present application, it further includes a guide groove, the guide groove is opened on the pressure plate, the second cover plate is slidably arranged in the guide groove, and the spring is connected between the second cover plate and the guide groove.

[0015] The present application provides a nitrogen protection sealing device for a bonding track. The device utilizes a first cover plate and a second cover plate to shield the bonding units on the frame, and exposes the bonding units to be bonded through a working window. During bonding, the first cover plate forms a relatively closed environment, which can prevent excessive loss of nitrogen and nitrogen loss. The first cover plate moves with the bonding module to promptly shield a bonding unit that has completed bonding to prevent oxidation. At the same time, by providing the first cover plate and connecting it to the bonding module, the bonding module can be thermally insulated to prevent high temperature from affecting the performance of the bonding module. Since the first cover plate and the second cover plate are decoupled from each other, when longitudinal bonding is performed, the first cover plate pushes the second cover plate to move, and the second cover plate can shield the bonded bonding unit to prevent oxidation. The first and second cover plates achieve the sealing and shielding function throughout the bonding process, without the need for additional drive structures to drive the cover plates to move. The overall structure is simple, which can reduce nitrogen loss while simplifying the structure of the equipment, thereby reducing the cost of equipment use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of a first structure of a bonding track nitrogen protection sealing device in one embodiment of the present application;

[0017] Figure 2 This is a schematic diagram of a second structure of a bonding track nitrogen protection sealing device in one embodiment of the present application;

[0018] Figure 3 This is an enlarged view of part A of a bonding track nitrogen protection sealing device in one embodiment of the present application;

[0019] Figure 4 This is a third structural schematic diagram of a bonding track nitrogen protection sealing device in one embodiment of the present application.

[0020] Description of reference numerals:

[0021] 1. Workbench; 2. Bonding module; 3. First cover plate; 4. Second cover plate; 5. Cantilever; 6. Working window; 7. Motor; 8. Press plate. DETAILED DESCRIPTION

[0022] The embodiments of the present application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be understood as limiting the present application. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application without making any creative efforts shall fall within the scope of protection of the present application.

[0023] In addition, if the descriptions of "first", "second", etc. are involved in this application, they are only used for descriptive purposes (such as to distinguish the same or similar elements) and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0024] Please refer to Figure 1 , Figure 2 , Figure 3 In one embodiment, a bonding track nitrogen protection sealing device includes a workbench 1, a placement groove is provided on the workbench 1, a frame is provided in the placement groove, a plurality of bonding units are provided on the frame, a first cover plate 3 and a second cover plate 4 are provided above the frame, one end of the first cover plate 3 is connected to the bonding module 2, and a working window 6 is opened on the first cover plate 3, a spring is connected to the second cover plate 4, one end of the second cover plate 4 is slidably connected to the workbench 1, and the first cover plate 3 and the second cover plate 4 are decoupled from each other.

[0025] It can be understood that the present application utilizes the first cover plate 3 and the second cover plate 4 to shield the bonding unit on the frame, and exposes the bonding unit to be bonded through the working window 6. During bonding, a relatively closed environment is formed by the first cover plate 3, which can avoid excessive loss of nitrogen and nitrogen loss. The first cover plate 3 is used to move with the bonding module 2 to shield a bonding unit that has completed bonding in time to avoid oxidation. At the same time, by arranging the first cover plate 3 to be connected to the bonding module 2, the bonding module 2 can be insulated to avoid oxidation. The high temperature does not affect the performance of the bonding module 2. Since the first cover plate 3 and the second cover plate 4 are decoupled from each other, when longitudinal bonding is performed, the first cover plate 3 pushes the second cover plate 4 to move, and the second cover plate 4 can shield the bonding unit after bonding to avoid oxidation. During the entire bonding process, the first cover plate 3 and the second cover plate 4 achieve the function of sealing and shielding. There is no need to add other driving structures to drive the cover plates to move. The overall structure is simple. While being able to reduce the loss of nitrogen, it simplifies the structure of the equipment, which is beneficial to reducing the cost of equipment use.

[0026] For details, please refer to Figure 2 , Figure 3 On the basis of the above embodiment, it also includes a pressing plate 8, which is arranged between the first cover plate 3 and the frame. The pressing plate 8 is used to press the frame. It can be understood that by setting the pressing plate 8, the frame can be pressed and fixed to avoid displacement during the bonding process, which affects the product yield.

[0027] For details, please refer to Figure 4 On the basis of the above embodiment, it also includes a lifting component, which is connected to both sides of the pressing plate 8. The lifting component is used to lift the pressing plate 8. Preferably, in this embodiment, the lifting component includes a motor 7, a cam, and a lifting platform. The output end of the motor 7 is provided with a cam, the bottom of the lifting platform is connected to the cam, and the two cantilevers 5 on the lifting platform are connected to both sides of the pressing plate 8.

[0028] It can be understood that the bottom of the lifting platform is connected to the cam, the lifting platform is slidingly connected to the workbench 1, and a guide assembly is connected to the workbench 1. The cam is driven to rotate by the motor 7 to realize the rising and falling movements of the lifting platform, thereby realizing the tightening and loosening movements of the pressure plate 8.

[0029] For details, please refer to Figure 2 , Figure 3On the basis of the above embodiment, the surface of the first cover plate 3 is flush with the surface of the second cover plate 4, and the size of the first cover plate 3 is larger than the size of the second cover plate 4. It can be understood that the width of the first cover plate 3 is larger than the bonding area. Through such a structural design, when the first cover plate 3 moves to the left, the right area can block the bonding unit. At the same time, the width of the first cover plate 3 is larger than the width of the second cover plate 4, and when the second cover plate 4 is pushed again after the first cover plate 3 moves to the left, other bonding units can be blocked.

[0030] For details, please refer to Figure 2 , Figure 3 On the basis of the above embodiment, the working window 6 passes through the first cover plate 3 and exposes the pressure plate 8, and the porcelain nozzle on the bonding module 2 extends into the working window 6; at the same time, it also includes a through hole, and a plurality of through holes are opened in the middle part of the pressure plate 8. The sizes of the plurality of through holes are adapted to the size of the working window 6. It can be understood that the through holes provided on the pressure plate 8 are used to provide air avoidance for the bonding module 2 during bonding, ensuring that the bonding module 2 can be matched with the copper wire and the frame to achieve bonding.

[0031] Specifically, on the basis of the above embodiment, it also includes a guide groove (not shown in the figure), a guide groove is opened on the pressure plate 8, a second cover plate 4 is slidably arranged in the guide groove, and a spring is connected between the second cover plate 4 and the guide groove. It can be understood that by setting the guide groove, the guiding effect of the movement of the second cover plate 4 can be improved to ensure that the second cover plate 4 moves in the same horizontal direction each time.

[0032] In summary, the present application provides a bonding track nitrogen protection sealing device. When in use, the frame is placed in the placement slot, and the lifting assembly is used to press the pressure plate 8 down to tighten and fix it. Then the bonding module 2 is started, and the bonding module 2 moves along the CNC programming path, while driving the first cover plate 3 to move along the same path. During bonding, nitrogen is provided by the nitrogen supply system on the bonding module 2, which can fill the bonding environment with nitrogen to prevent the copper wire from being oxidized by high temperature during bonding. At the same time, the porcelain nozzle on the bonding module 2 is used to bond the copper wire on the wire feeding mechanism to the bonding unit on the frame through the working window 6. After completing one bonding unit, the first cover plate 3 is driven to timely cover the completed bonding unit, and then the next one is carried out. The bonding of the bonding units can make the bonding space relatively closed through the first cover plate 3, effectively limiting the gas exchange area between nitrogen and the outside, avoiding leakage or rapid loss of nitrogen, and improving the bonding efficiency. When bonding other bonding units, the first cover plate 3 is used to push the second cover plate 4 on the pressure plate 8, so as to timely block the bonding units between them and avoid oxidation. When the first cover plate 3 returns to the initial position, the second cover plate 4 can be reset by means of the spring. The entire bonding process realizes the sealing bonding effect through the first cover plate 3 and the second cover plate 4, and there is no need to add other driving mechanisms to the cover plates. Compared with the traditional bonding module 2 and the cover plate being driven separately, the complexity of the equipment mechanism is greatly simplified, and the maintenance cost of the equipment is also reduced.

[0033] It should be noted that, in this document, the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, apparatus, article, or method comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, apparatus, article, or method. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, apparatus, article, or method comprising the element.

[0034] The above description is only a preferred embodiment of the present application and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A bonding track nitrogen protection sealing device, characterized in that: It includes a workbench, a placement groove is provided on the workbench, a frame is provided in the placement groove, a plurality of bonding units are provided on the frame, a first cover plate and a second cover plate are provided above the frame, one end of the first cover plate is connected to the bonding module, and a working window is provided on the first cover plate, a spring is connected to the second cover plate, one end of the second cover plate is slidably connected to the workbench, and the first cover plate and the second cover plate are decoupled from each other.

2. The bonding track nitrogen protection sealing device according to claim 1, characterized in that: It also includes a pressing plate, which is arranged between the first cover plate and the frame and is used to press the frame.

3. The bonding track nitrogen protection sealing device according to claim 2, characterized in that: The working window passes through the first cover plate and exposes the pressing plate, and the porcelain nozzle on the bonding module extends into the working window.

4. The bonding track nitrogen protection sealing device according to claim 3, characterized in that: It also includes a lifting component, which is connected to both sides of the pressing plate and is used to lift the pressing plate.

5. The bonding track nitrogen protection sealing device according to claim 1, characterized in that: A surface of the first cover plate is flush with a surface of the second cover plate, and a size of the first cover plate is larger than a size of the second cover plate.

6. The bonding track nitrogen protection sealing device according to claim 4, characterized in that: The lifting assembly includes a motor, a cam, and a lifting platform. The cam is provided at the output end of the motor, the bottom of the lifting platform is connected to the cam, and the two cantilevers on the lifting platform are connected to both sides of the pressing plate.

7. The bonding track nitrogen protection sealing device according to claim 3, characterized in that: It also includes through holes. A plurality of through holes are opened in the middle portion of the pressure plate, and the sizes of the plurality of through holes are adapted to the size of the working window.

8. The bonding track nitrogen protection sealing device according to claim 2, characterized in that: It also includes a guide groove, the pressure plate is provided with the guide groove, the second cover plate is slidably arranged in the guide groove, and the spring is connected between the second cover plate and the guide groove.

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