Chip eutectic sintering positioning tool

Abstract

The utility model discloses a chip eutectic sintering positioning tool which comprises a base, a supporting column, a supporting beam, a position adjusting lead screw and a clamping device. Connecting parts are fixedly connected to the two sides of the base, sliding grooves are formed in the connecting parts, and the bottoms of the supporting columns are slidably connected into the sliding grooves. The connecting part is provided with scale marks; the supporting beam is fixedly connected to the top of the supporting column, and the top of the supporting column is further rotationally connected with a position adjusting lead screw. The supporting beam is movably connected with a connector, and the connector is further in threaded connection with the position adjusting lead screw; scale marks are arranged on the top of the supporting beam. The clamping device is connected to the bottom of the connector, and the connector is used for clamping a chip. The supporting column is pulled to enable the clamping device to leave the upper portion of the gasket, welding flux is placed on the gasket, a chip is clamped through the clamping device, then the supporting column is pushed to move to the position marked on the scale line of the connecting part, the clamping device is opened to put down the chip, and then the chip can be accurately placed on the upper portion of the gasket.

Description

Technical Field

[0001] The utility model belongs to the technical field of positioning tooling, in particular to a chip eutectic sintering positioning tooling. Background Art

[0002] Eutectic sintering is a process used to manufacture integrated circuit chips. In this process, different metals or alloys are melted and connected to electrodes on the chip to form a eutectic structure. This eutectic structure provides excellent electronic connectivity and conductivity, and can withstand high temperatures and mechanical stress. The specific steps in the eutectic sintering process include chip preparation, substrate preparation, positioning and alignment, sintering, cooling and curing, and inspection and testing.

[0003] Alignment and positioning are critical steps to ensure precise connection between the electrodes on the chip and the metal coating on the substrate. Inaccurate alignment can result in incomplete or unstable connections between the electrodes, impacting chip performance and reliability. Prior art alignment and positioning are typically performed manually, visually identifying the relative center position of the chip and substrate, requiring a high level of skill.

[0004] A chip eutectic welding method is disclosed in the patent with publication number CN106024645B, in which the specific steps for positioning and alignment are: "In the process of positioning the chip, first use an L-shaped ceramic positioning fixture to fix the gasket, then place the soldering pad on the gasket, and finally place the chip on the soldering pad." This method uses manual placement of the chip on the gasket, which has the problem of the chip easily misaligning with the gasket. Utility Model Content

[0005] The purpose of this utility model is to provide a chip eutectic sintering positioning tool to solve the following technical problems raised in the background technology:

[0006] There are techniques where it is difficult to align the chip with the pad.

[0007] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0008] A chip eutectic sintering positioning tool, comprising a base, a support column, a support beam, a position adjustment screw and a clamping device;

[0009] The base is fixed with connecting parts on both sides, and the connecting parts are provided with sliding grooves, and the bottom of the support column is slidably connected in the sliding grooves; the connecting parts are provided with scale lines;

[0010] The support beam is fixedly connected to the top of the support column, and the top of the support column is also rotatably connected to a position adjustment screw; a connector is movably connected to the support beam, and the connector is also threadedly connected to the position adjustment screw; a scale line is set on the top of the support beam; a clamping device is connected to the bottom of the connector, and the connector is used to clamp the chip.

[0011] Furthermore, a placement platform is provided in the middle of the base, and scale lines with a cross structure are provided in the middle of the placement platform.

[0012] Furthermore, the chute is a cross structure, and the bottom shape of the support column matches the shape of the chute.

[0013] Furthermore, the bottom of the connector is connected to the telescopic rod, and the bottom of the telescopic rod is connected to the clamping device.

[0014] Furthermore, the clamping device includes an intermediate plate, a first connecting arm, a second connecting arm, a first clamping jaw, a second clamping jaw, a first bidirectional screw rod, and a second bidirectional screw rod;

[0015] The first connecting arm and the second connecting arm are in a cross structure and are fixed to the middle plate. The first bidirectional screw is rotatably connected to the first connecting arm, and the second bidirectional screw is rotatably connected to the second connecting arm; the first clamping jaw is slidably connected to both sides of the first connecting arm, and the first clamping jaws on both sides are respectively threadedly connected to the first bidirectional screw; the second clamping jaw is slidably connected to both sides of the second connecting arm, and the second clamping jaws on both sides are respectively threadedly connected to the second bidirectional screw.

[0016] Furthermore, a connecting plate is fixed to the top of the middle plate.

[0017] Furthermore, a first mounting groove is provided at the bottom of the first connecting arm, and the first bidirectional screw rod is rotatably connected in the first mounting groove; a second mounting groove is provided at the bottom of the second connecting arm, and the second bidirectional screw rod is rotatably connected in the second mounting groove.

[0018] Furthermore, a supporting plate is fixed to the bottom of the middle plate.

[0019] Furthermore, the first connecting arm is connected to a first control motor, which is connected to a first bidirectional screw rod; the second connecting arm is connected to a second control motor, which is connected to a second bidirectional screw rod.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] When using this tool, pull the support column to move the clamping device away from the top of the gasket, place solder on the gasket, use the clamping device to clamp a chip, then push the support to move the support column to the position marked on the scale line of the connection part, open the clamping device and put the chip down to accurately place the chip on top of the gasket. This design allows the chip to be accurately aligned with the gasket. With this tool, workers can quickly and accurately align the chip with the gasket, reducing the time for adjusting the position and improving production efficiency. Since the chip can be precisely aligned with the gasket, welding or assembly errors caused by inaccurate positioning can be avoided, ensuring stable product quality. The tool is equipped with scale lines and can be adjusted for position, reducing the possibility of human error and improving operational accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the overall structure of the clamping device of the present utility model.

[0024] Markings in the figure: 1-base, 2-placing table, 3-clamping device, 4-telescopic rod, 5-connecting head, 6-support beam, 7-position adjustment screw, 8-support column, 9-slide groove, 10-connecting part, 11-first bidirectional screw, 12-first clamping jaw, 13-first connecting arm, 14-first mounting groove, 15-connecting plate, 16-second control motor, 17-second connecting arm, 18-first control motor, 19-middle plate, 20-rest plate, 21-second bidirectional screw, 22-second clamping jaw, 23-second mounting groove. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] Example

[0027] A chip eutectic sintering positioning tool, such as Figure 1 As shown, it includes a base 1, a support column 8, a support beam 6, a position adjustment screw 7 and a clamping device 3;

[0028] The base 1 is fixed with a connecting portion 10 on both sides, and a slide groove 9 is provided on the connecting portion 10. The bottom of the support column 8 is slidably connected in the slide groove 9; the connecting portion 10 is provided with a scale line;

[0029] The support beam 6 is fixedly connected to the top of the support column 8, and the top of the support column 8 is also rotatably connected to the position adjustment screw 7; the support beam 6 is movably connected to the connector 5, and the connector 5 is also threadedly connected to the position adjustment screw 7; a scale line is set on the top of the support beam 6; the clamping device 3 is connected to the bottom of the connector 5, and the connector 5 is used to clamp the chip.

[0030] Specifically, when in use, place the gasket on the base 1 and fix it, and mark the scale corresponding to the center position of the pad on the scale line on the connecting part 10 with a marker or other auxiliary tools. Then mark the center position corresponding to the gasket on the scale line of the support beam 6. Turn the position adjustment screw 7 to move the connector 5 and move the connector 5 to the position marked by the scale line on the support beam 6. Pull the support column 8 to make the clamping device 3 leave the top of the gasket, place the solder on the gasket, use the clamping device 3 to clamp a chip, and then push the support and move the support column 8 to the position marked on the scale line of the connecting part 10. Open the clamping device 3 and put the chip down. This design can accurately align the chip with the gasket.

[0031] In a preferred embodiment, Figure 1 As shown, a placement platform 2 is provided in the middle of the base 1, and a cross-shaped scale line is provided in the middle of the placement platform 2. By providing such a scale line, the center position of the gasket can be easily located, and further, the chip and the gasket can be easily aligned.

[0032] In a preferred embodiment, Figure 1 As shown, the chute 9 is a cross structure, and the bottom shape of the support column 8 matches the shape of the chute 9. This design is to prevent the support column 8 from shaking when moving. The cross-shaped chute 9 and the matching bottom of the support column 8 can ensure that the support column 8 can move stably when pulling the support column 8, thereby ensuring that the chip can be accurately aligned with the gasket.

[0033] In a preferred embodiment, Figure 1 As shown, the bottom of the connector 5 is connected to the telescopic rod 4, and the bottom of the telescopic rod 4 is connected to the clamping device 3. The telescopic rod 4 is used to lower the clamping device 3 so that the chip can be placed on the pad through the clamping device 3. Specifically, the telescopic rod 4 here can be an electric telescopic rod 4.

[0034] In a preferred embodiment, Figure 2 As shown, the clamping device 3 includes an intermediate plate 19, a first connecting arm 13, a second connecting arm 17, a first clamping jaw 12, a second clamping jaw 22, a first bidirectional screw rod 11 and a second bidirectional screw rod 21; it should be noted that the first bidirectional screw rod 11 and the second bidirectional screw rod 21 both refer to screw rods with opposite thread rotation directions on both sides.

[0035] The first connecting arm 13 and the second connecting arm 17 are in a cross structure and are fixed to the middle plate 19. The first bidirectional screw rod 11 is rotatably connected to the first connecting arm 13, and the second bidirectional screw rod 21 is rotatably connected to the second connecting arm 17; the first clamping jaw 12 is slidably connected to both sides of the first connecting arm 13, and the first clamping jaws 12 on both sides are respectively threadedly connected to the first bidirectional screw rod 11; the second clamping jaw 22 is slidably connected to both sides of the second connecting arm 17, and the second clamping jaws 22 on both sides are respectively threadedly connected to the second bidirectional screw rod 21.

[0036] Specifically, when in use, the first two-way screw rod 11 is rotated so that the first clamping jaws 12 on the left and right sides of the first connecting arm 13 move toward the middle, and the chip is clamped by the first clamping jaw 12. The second two-way screw rod 21 is rotated so that the second clamping jaws 22 on the left and right sides of the second connecting arm 17 move toward the middle, and the chip is clamped by the second clamping jaw 22. When the chip needs to be put down, just rotate the first two-way screw rod 11 and the second two-way screw rod 21. At the same time, since the first two-way screw rod 11 is rotated, the first clamping jaws 12 on both sides of the first two-way screw rod 11 will synchronously move closer to or away from each other, so the first clamping jaw 12 can clamp and fix the chip in the middle position. By the same principle, the second two-way screw rod 21 and the second clamping jaw 22 can also clamp and fix the chip in the middle position. Through the joint action of the first clamping jaw 12 and the second clamping jaw 22, the first clamping jaw 12 and the second clamping jaw 22 can stably clamp the chip in the middle position, making it convenient for the chip to be aligned with the gasket.

[0037] In a preferred embodiment, Figure 2 As shown, a connecting plate 15 is fixed to the top of the middle plate 19. The connecting plate 15 can be provided with a connecting structure such as a threaded hole, and the connecting plate 15 is used to facilitate connection with the telescopic rod 4.

[0038] In a preferred embodiment, Figure 2 As shown, a first mounting slot 14 is provided at the bottom of the first connecting arm 13, into which the first bidirectional screw rod 11 is rotatably connected. A second mounting slot 23 is provided at the bottom of the second connecting arm 17, into which the second bidirectional screw rod 21 is rotatably connected. The provision of the first mounting slot 14 and the second mounting slot 23 makes it difficult for the first clamping jaw 12 and the second clamping jaw 22 to be disturbed by external factors during the clamping or loosening process, thereby stably clamping the chip and preventing chip misalignment caused by unstable clamping.

[0039] In a preferred embodiment, Figure 2 As shown, a support plate 20 is fixed to the bottom of the middle plate 19. When clamping a chip, the chip is first placed against the support plate 20, and then the chip is clamped by the first clamping jaw 12 and the second clamping jaw 22. The design of the support plate 20 can improve the efficiency of chip clamping, further improving overall work efficiency.

[0040] In a preferred embodiment, Figure 2 As shown, the first connecting arm 13 is connected to a first control motor 18, which is connected to the first bidirectional lead screw 11. The second connecting arm 17 is connected to a second control motor 16, which is connected to the second bidirectional lead screw 21. The first control motor 18 is used to rotate the first bidirectional lead screw 11, and the second control motor 16 is used to rotate the second bidirectional lead screw 21. Both the first control motor 18 and the second control motor 16 can be remotely controlled, thereby facilitating chip clamping and, in other words, facilitating alignment of the chip with the gasket.

[0041] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "two ends", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0042] In the present invention, unless otherwise clearly stipulated and limited, the terms "install", "set", "connect", "fix", "screw" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0043] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A chip eutectic sintering positioning tool, characterized by: It comprises a base (1), a support column (8), a support beam (6), a position adjustment screw rod (7) and a clamping device (3); The base (1) has connecting parts (10) fixedly connected on both sides, and a slide groove (9) is provided on the connecting part (10), and the bottom of the support column (8) is slidably connected in the slide groove (9); and scale lines are provided on the connecting part (10); The support beam (6) is fixedly connected to the top of the support column (8), and the top of the support column (8) is also rotatably connected to a position adjustment screw (7); a connector (5) is movably connected to the support beam (6), and the connector (5) is also threadedly connected to the position adjustment screw (7); a scale line is arranged on the top of the support beam (6); and a clamping device (3) is connected to the bottom of the connector (5), and the connector (5) is used to clamp the chip.

2. A chip eutectic sintering positioning tool according to claim 1, characterized in that: A placing platform (2) is arranged in the middle of the base (1), and a scale line with a cross structure is arranged in the middle of the placing platform (2).

3. The chip eutectic sintering positioning tool according to claim 1, characterized in that: The slide groove (9) is a cross structure, and the bottom shape of the support column (8) matches the shape of the slide groove (9).

4. The chip eutectic sintering positioning tool according to claim 1, characterized in that: The bottom of the connecting head (5) is connected to the telescopic rod (4), and the bottom of the telescopic rod (4) is connected to the clamping device (3).

5. The chip eutectic sintering positioning tool according to claim 1, characterized in that: The clamping device (3) comprises an intermediate plate (19), a first connecting arm (13), a second connecting arm (17), a first clamping jaw (12), a second clamping jaw (22), a first bidirectional screw rod (11) and a second bidirectional screw rod (21); The first connecting arm (13) and the second connecting arm (17) are in a cross structure and are fixedly connected to the middle plate (19); the first bidirectional screw rod (11) is rotatably connected to the first connecting arm (13), and the second bidirectional screw rod (21) is rotatably connected to the second connecting arm (17); the first clamping jaw (12) is slidably connected to both sides of the first connecting arm (13), and the first clamping jaws (12) on both sides are respectively threadedly connected to the first bidirectional screw rod (11); the second clamping jaw (22) is slidably connected to both sides of the second connecting arm (17), and the second clamping jaws (22) on both sides are respectively threadedly connected to the second bidirectional screw rod (21).

6. The chip eutectic sintering positioning tool according to claim 5, characterized in that: The top of the middle plate (19) is fixedly connected with a connecting plate (15).

7. The chip eutectic sintering positioning tool according to claim 5, characterized in that: A first mounting groove (14) is provided at the bottom of the first connecting arm (13), and the first bidirectional screw rod (11) is rotatably connected in the first mounting groove (14); a second mounting groove (23) is provided at the bottom of the second connecting arm (17), and the second bidirectional screw rod (21) is rotatably connected in the second mounting groove (23).

8. The chip eutectic sintering positioning tool according to claim 5, characterized in that: The bottom of the middle plate (19) is fixedly connected with a supporting plate (20).

9. The chip eutectic sintering positioning tool according to claim 5, characterized in that: The first connecting arm (13) is connected to a first control motor (18), and the first control motor (18) is connected to a first bidirectional screw rod (11); the second connecting arm (17) is connected to a second control motor (16), and the second control motor (16) is connected to a second bidirectional screw rod (21).

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