Soldering flux supply device

Abstract

The utility model relates to a flux supply device. Comprising a base; the mounting seat is fixedly connected with the base; the feeding mechanism is arranged on the mounting base, the feeding mechanism comprises a driving unit and a feeding box, the feeding box is used for containing scaling powder and is in sliding connection with the mounting base, the driving unit is arranged on the mounting base, and the driving unit is connected with the feeding box and drives the feeding box to move. In view of the fact that the driving unit is connected with the supply box and drives the supply box to move, when the supply box is in the supply position, the soldering flux in the supply box can be directly added to the chip, so that direct welding connection between the chip and the substrate is realized, connection between the chip and the substrate through a welding wire is avoided, and the working efficiency of chip bonding can be improved. And after the soldering flux is supplied, the supply box can be moved to the standby position, so that the supply box is prevented from interfering with the welding between the chip and the substrate.

Description

Technical Field

[0001] This application relates to the field of semiconductor technology, and in particular to a flux supply device. Background Technology

[0002] In the field of semiconductor packaging technology, it is usually necessary to bond the bumps on the chip to the substrate. For traditional bonding methods, wire bonding is typically used to weld the leads on the chip and the substrate to achieve chip-substrate bonding. However, this traditional bonding method requires multiple wire bonding operations, which affects the efficiency of chip bonding. Utility Model Content

[0003] One of the technical problems addressed by this application is how to improve the efficiency of chip bonding.

[0004] A flux supply device, comprising:

[0005] Base;

[0006] Mounting base, wherein the mounting base is fixedly connected to the base; and

[0007] A supply mechanism is provided on the mounting base. The supply mechanism includes a drive unit and a supply box. The supply box is used to hold flux and is slidably connected to the mounting base. The drive unit is provided on the mounting base and is connected to the supply box to drive the supply box to move.

[0008] In one embodiment, the base includes a support column with a columnar structure, the support column having a cavity, and the mounting base is connected to the support column.

[0009] In one embodiment, one of the mounting base and the base is provided with a first elongated hole and the other is provided with a first circular hole. The extension direction of the first elongated hole is the same as the extension direction of the base. The first elongated hole and the first circular hole are used to pass through a first fastener.

[0010] In one embodiment, the mounting base includes a connector and a mounting member, the connector being detachably connected to the mounting member, the connector being connected to the base, and the supply mechanism being connected to the mounting member.

[0011] In one embodiment, one of the connector and the mounting member is provided with a second elongated hole and the other is provided with a second circular hole. The extension direction of the second elongated hole is perpendicular to both the extension direction of the first elongated hole and the sliding direction of the supply box. The second elongated hole and the second circular hole are used to pass through a second fastener.

[0012] In one embodiment, one of the mounting base and the supply box includes a slide rail and the other is provided with a slide groove, the slide rail and the slide groove being slidably engaged.

[0013] In one embodiment, the slide rail has an orthographic projection on the supply box, and along a sliding direction perpendicular to the supply box, the orthographic projection is equidistant from two opposite edges of the supply box.

[0014] In one embodiment, the drive unit includes a driver, a drive wheel, a driven wheel, and a conveyor belt. The driver is disposed on the mounting base. The drive wheel and the driven wheel are both spaced apart on the mounting base along the sliding direction of the supply box, and both the drive wheel and the driven wheel are rotatably connected to the mounting base. The driver is connected to the drive wheel and is used to drive the drive wheel to rotate. The conveyor belt is simultaneously sleeved on the drive wheel and the driven wheel. The supply box is connected to the tight side or the loose side of the conveyor belt.

[0015] In one embodiment, the driver is a servo motor.

[0016] In one embodiment, at least one of the following schemes is also included:

[0017] The drive unit and the supply box are located on the same side of the mounting base;

[0018] The base is provided with a third elongated hole, the extension direction of which is perpendicular to the sliding direction of the supply box.

[0019] One technical advantage of one embodiment of this application is that, since the driving unit is connected to and drives the supply box to move, when the supply box is in the supply position, the flux in the supply box can be directly added to the chip, thereby achieving direct welding connection between the chip and the substrate, avoiding connection between the chip and the substrate through wire bonding, thus improving the efficiency of chip bonding. When the flux supply is complete, the supply box can be moved to the standby position, thereby avoiding interference between the supply box and the chip / substrate welding, which also improves the efficiency and welding quality of chip bonding. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural schematic diagram of a flux supply device provided in one embodiment.

[0021] Figure 2 for Figure 1 The partial three-dimensional structure of the flux supply device shown is a schematic diagram.

[0022] Reference numerals: flux supply device 10, base 100, support column 110, inner cavity 111, third elongated hole 120, mounting base 200, connector 210, first elongated hole 211, second elongated hole 212, mounting component 220, slide rail 221, supply mechanism 300, drive unit 310, driver 311, drive wheel 312, driven wheel 313, conveyor belt 314, supply box 320. Detailed Implementation

[0023] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0024] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0025] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0026] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0027] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0028] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0029] See Figure 1 and Figure 2An embodiment of this application provides a flux supply device 10, including a base 100, a mounting base 200, and a supply mechanism 300. The base 100 can be fixed to other devices via a detachable connection. The mounting base 200 is fixedly connected to the base 100. The supply mechanism 300 is disposed on the mounting base 200 and includes a drive unit 310 and a supply box 320. The supply box 320 is used to hold flux and is slidably connected to the mounting base 200. The drive unit 310 is disposed on the mounting base 200 and is connected to the supply box 320, driving the supply box 320 to move. For ease of description, the three directions are respectively referred to as the first direction, the second direction, and the third direction. The first direction, the second direction, and the third direction are mutually perpendicular. The first direction, the second direction, and the third direction can be understood as the extension directions of the three coordinate axes in a spatial rectangular coordinate system. The first direction and the second direction are both horizontal directions, and the third direction is a vertical direction. The drive unit 310 drives the supply box 320 to perform reciprocating linear motion along a first direction. For example, the drive unit 310 can drive the supply box 320 to perform linear motion between a standby position and a supply position. When the drive unit 310 drives the supply box 320 to the standby position, the supply box 320 is in a waiting state, and the pick-up device does not pick up flux from the supply box 320; when the drive unit 310 drives the supply box 320 to the supply position, the supply box 320 is in a working state, and the pick-up device will pick up flux from the supply box 320.

[0030] See Figure 1 and Figure 2 In some embodiments, the base 100 includes a support column 110 for fixing to other devices. The support column 110 can be a columnar structure, such as a cuboid structure, and has a cavity inside. The mounting base 200 is used to connect to the support column 110. By including the support column 110 in the base 100, reasonable mechanical strength can be ensured while simplifying the structure of the base 100.

[0031] The base 100 may also have a third elongated hole 120, which may be a slotted hole or the like. There may be multiple third elongated holes 120. The third elongated hole 120 extends a certain length along the second direction. Fasteners such as bolts can be inserted through the third elongated hole 120. When the installation position of the bolts or other fasteners in the third elongated hole 120 changes, the installation position of the base 100 relative to other devices can be adjusted, thereby realizing the fine adjustment of the position of the entire flux supply device 10 relative to other devices in the second direction.

[0032] See Figure 1 and Figure 2In some embodiments, one of the mounting base 200 and the base 100 is provided with a first elongated hole 211 and the other is provided with a first circular hole. For example, the mounting base 200 may have a first elongated hole 211, and the base 100 may have a first circular hole. The first elongated hole 211 extends a certain length in a third direction, that is, it extends a certain length in a vertical direction. There may be multiple first circular holes, which are spaced apart in a third direction. First fasteners may be inserted into the first elongated hole 211 and the first circular hole to fix the base 100 and the mounting base 200 together. The first fasteners may be bolts or the like. When the installation position of the first fastener in the first elongated hole 211 changes and it mates with different first circular holes, the position of the mounting base 200 in the third direction can be adjusted, thereby fine-tuning the position of the supply box 320 in the third direction, ultimately improving the applicability of the flux supply device 10 to various working conditions. In other embodiments, the first circular hole may be provided on the mounting base 200, and the first elongated hole 211 may be provided on the base 100.

[0033] See Figure 1 and Figure 2 In some embodiments, the mounting base 200 includes a connector 210 and a mounting member 220, which are detachably connected. The connector 210 is connected to the base 100, and the supply mechanism 300 is connected to the mounting member 220. For example, the connector 210 and the mounting member 220 can be detachably connected by a threaded connection. By detachably connecting the connector 210 and the mounting member 220, the ease of use and maintenance of the flux supply device 10 can be improved.

[0034] See Figure 1 and Figure 2In some embodiments, one of the connector 210 and the mounting member 220 is provided with a second elongated hole and the other is provided with a second circular hole. For example, a first elongated hole 211 or a first circular hole can be provided on the connector 210, a second elongated hole 212 can be provided on the connector 210, and a second circular hole can be provided on the mounting member 220. The second elongated hole 212 extends a certain length along a second direction, that is, the second elongated hole 212 extends a certain length along a horizontal direction. There can be multiple second circular holes, which are spaced apart along the second direction. A second fastener can be inserted into the second elongated hole 212 and the second circular hole. The second fastener is used to fix the base 100 and the mounting base 200 together. The second fastener can be a bolt, etc. When the installation position of the second fastener in the second elongated hole 212 changes to mate with different second circular holes, the position of the mounting member 220 in the second direction can be adjusted, thereby fine-tuning the position of the supply box 320 in the second direction, ultimately improving the applicability of the flux supply device 10 to various working conditions. In other embodiments, the second circular hole can be provided on the connector 210, and the second elongated hole 212 can be provided on the mounting member 220.

[0035] See Figure 1 and Figure 2 In some embodiments, one of the mounting base 200 and the supply box 320 includes a slide rail 221, and the other is provided with a slide groove. The slide rail 221 and the slide groove are slidably engaged, thus realizing a sliding connection between the supply box 320 and the mounting base 200. For example, the mounting component 220 of the mounting base 200 may include a slide rail 221, and the supply box 320 is provided with a slide groove. Obviously, both the slide rail 221 and the slide groove extend along a first direction. Through the engagement of the slide rail 221 and the slide groove, the sliding resistance during the sliding process of the supply box 320 can be reduced, improving the smoothness of the sliding of the supply box 320 and also improving the sliding accuracy of the supply box 320. In other embodiments, the supply box 320 may include a slide rail 221, and the mounting component 220 may have a slide groove. To further improve the smoothness of the sliding of the supply box 320 and thereby reduce the sliding resistance of the supply box 320, a certain amount of lubricant can be applied to the slide rail 221 or the slide groove. The lubricant can reduce resistance on the one hand, and absorb the heat generated by the supply box 320 during sliding on the other hand, thereby reducing the wear of the supply box 320 under the action of heat, and ultimately improving the service life of the flux supply device 10.

[0036] See Figure 1 and Figure 2In some embodiments, the slide rail 221 has an orthographic projection on the supply box 320 along a third direction. Along the sliding direction perpendicular to the supply box 320, i.e., along the second direction, the distance between the orthographic projection and the two opposite edges of the supply box 320 is equal. This can also be understood as the supply box 320 being symmetrically positioned relative to the orthographic projection, i.e., the orthographic projection is centered on the supply box 320. This improves the balance of the supply box 320 during movement, reduces vibrations generated by the supply box 320, and thus improves the sliding accuracy of the supply box 320.

[0037] See Figure 1 and Figure 2 In some embodiments, the drive unit 310 includes a driver 311, a drive wheel 312, a driven wheel 313, and a transmission belt 314. The driver 311 is mounted on the mounting base 200. Both the drive wheel 312 and the driven wheel 313 are spaced apart on the mounting base 200 along a first direction. Both the drive wheel 312 and the driven wheel 313 are rotatably connected to the mounting base 200, meaning that both the drive wheel 312 and the driven wheel 313 can rotate about different axes extending in a second direction. The driver 311 is connected to the drive wheel 312 and is used to drive the drive wheel 312 to rotate. The transmission belt 314 is simultaneously fitted onto both the drive wheel 312 and the driven wheel 313. The supply box 320 is connected to the tight side or the loose side of the transmission belt 314. When the driver 311 drives the drive wheel 312 to rotate, the driven wheel 313 will also rotate due to the action of the transmission belt 314, thus allowing the tight side or the loose side of the transmission belt 314 to move linearly along the first direction. Therefore, by changing the rotation direction of the drive wheel 312 driven by the driver 311, the supply box 320 can reciprocate linearly between the supply position and the standby position along the first direction. In other embodiments, for example, the driver 311 can be a servo motor or a stepper motor. Similarly, the drive unit 310 can be a cylinder or a linear module, which can also achieve the same reciprocating linear motion of the supply box 320 between the supply position and the standby position along the first direction.

[0038] See Figure 1 and Figure 2 In some embodiments, the drive unit 310 and the supply box 320 are located on the same side of the mounting base 200. This allows for a reasonable optimization of the layout of the various components in the entire flux supply device 10, thereby achieving a compact structural design for the flux supply device 10. For example, the drive unit 310 can be located on the same surface in the thickness direction of the mounting member 220, thus making the drive unit 310 and the supply box 320 located on the same side of the mounting base 200. In other embodiments, the supply box 320 can be located on the upper surface in the thickness direction of the mounting member 220, and the drive unit 310 can be located on the lower surface in the thickness direction of the mounting member 220, that is, the drive unit 310 and the supply box 320 are located on opposite sides of the mounting base 200.

[0039] Since the supply box 320 in the flux supply device 10 can reciprocate linearly between the supply position and the standby position along the first direction, when the supply box 320 is in the supply position, the flux in the supply box 320 can be directly added to the chip, thereby realizing direct soldering connection between the chip and the substrate, avoiding connection between the chip and the substrate through wire bonding, thus improving the efficiency of chip bonding. When the flux supply is completed, the supply box 320 can be moved to the standby position, thereby avoiding interference between the supply box 320 and the soldering between the chip and the substrate, thus also improving the efficiency and soldering quality of chip bonding.

[0040] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0041] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A flux supply device, characterized in that, include: Base; Mounting base, which is fixedly connected to the base; and A supply mechanism is provided on the mounting base. The supply mechanism includes a drive unit and a supply box. The supply box is used to hold flux and is slidably connected to the mounting base. The drive unit is provided on the mounting base and is connected to the supply box to drive the supply box to move.

2. The flux supply device according to claim 1, characterized in that, The base includes a support column with a columnar structure, and the support column has a cavity inside. The mounting base is connected to the support column.

3. The flux supply device according to claim 1, characterized in that, One of the mounting base and the base is provided with a first elongated hole and the other is provided with a first circular hole. The extension direction of the first elongated hole is the same as the extension direction of the base. The first elongated hole and the first circular hole are used to pass through a first fastener.

4. The flux supply device according to claim 3, characterized in that, The mounting base includes a connector and a mounting component. The connector and the mounting component are detachably connected. The connector is connected to the base. The supply mechanism is connected to the mounting component.

5. The flux supply device according to claim 4, characterized in that, One of the connectors and the mounting components is provided with a second elongated hole and the other is provided with a second circular hole. The extension direction of the second elongated hole is perpendicular to both the extension direction of the first elongated hole and the sliding direction of the supply box. The second elongated hole and the second circular hole are used to pass through a second fastener.

6. The flux supply device according to claim 1, characterized in that, One of the mounting base and the supply box includes a slide rail and the other is provided with a slide groove, wherein the slide rail and the slide groove are slidably engaged.

7. The flux supply device according to claim 6, characterized in that, The slide rail has an orthographic projection on the supply box, and along the sliding direction perpendicular to the supply box, the distance between the orthographic projection and the two opposite edges of the supply box is equal.

8. The flux supply device according to claim 1, characterized in that, The drive unit includes a driver, a drive wheel, a driven wheel, and a transmission belt. The driver is mounted on the mounting base. The drive wheel and the driven wheel are both spaced apart on the mounting base along the sliding direction of the supply box, and both the drive wheel and the driven wheel are rotatably connected to the mounting base. The driver is connected to the drive wheel and is used to drive the drive wheel to rotate. The transmission belt is simultaneously fitted on the drive wheel and the driven wheel. The supply box is connected to the tight side or the loose side of the transmission belt.

9. The flux supply device according to claim 8, characterized in that, The driver is a servo motor.

10. The flux supply device according to claim 1, characterized in that, It also includes at least one of the following options: The drive unit and the supply box are located on the same side of the mounting base; The base is provided with a third elongated hole, the extension direction of which is perpendicular to the sliding direction of the supply box.

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