Chip flip mounting apparatus

Abstract

The utility model relates to patch equipment technical field, concretely relates to a chip flip chip mounting equipment, including support frame, the upper and lower both ends of support frame are connected with first turntable and second turntable rotation respectively, and the outside of first turnplate and second turnplate is all fixedly connected with a plurality of annular equidistance distribution's fixed column, and the fixed column number of first turnplate and second turnplate is same, and the one end of fixed column extends the outside of first turnplate, and the middle part of fixed column is equipped with moving groove, and the bottom of moving groove is fixedly connected with spring, and the upper end of spring is fixedly connected with moving rod, and the one end of moving rod is fixedly connected with chip aspirator through moving groove to the outside of fixed column, and chip aspirator has chip body. Compared with the prior art, the transmission of the chip body is stable and fast during the flip process, and the chip body is prevented from being damaged by collision with the chip aspirator.

Description

Technical Field

[0001] This utility model relates to the field of chip mounting equipment technology, and in particular to a chip flip mounting equipment. Background Technology

[0002] Flip-chip packaging is an advanced integrated circuit packaging technology that achieves high-density, high-performance packaging by directly interconnecting the active side (pad side) of the chip with the substrate facing down. Metal bumps are pre-fabricated on the chip surface, and the chip is flipped to align the bumps with the substrate pads. Electrical and mechanical connections are then achieved through heating and pressurization.

[0003] In the prior art, Chinese patent CN206401291U discloses a chip flip-chip placement device. The chip pick-up device of the first turntable contacts the chip with the surface of the chip having pads. The second turntable picks up the chip picked up by the first turntable and places the chip in the chip placement area, with the surface of the chip having pads facing the chip placement area, thereby realizing chip flip-chip placement. The two turntables alternately pick up the chip, so that the chip can be flipped when it is placed in the chip placement area, which simplifies the pre-process of flip-chip placement and improves placement efficiency. However, in practical applications, there is still a problem that the chip is transferred by rotating two turntables. The chip travels in an arc during the transfer process, but the chip is not curved. In order to transfer the chip, the relative distance between the two turntables is relatively close. Therefore, there is a problem that the chip is squeezed at the intersection of the turntables and the chip pick-up device, causing chip damage. Therefore, we disclose a chip flip-chip placement device. Utility Model Content

[0004] In view of this, the purpose of this utility model is to propose a chip flip-chip mounting device to solve the problem of chip damage caused by the squeezing of chips at the junction of the turntables and the chip pick-up device.

[0005] Based on the above objectives, this utility model provides a chip flip-chip mounting device, including a support frame. A first turntable and a second turntable are rotatably connected to the upper and lower ends of the support frame, respectively. A plurality of annularly distributed fixed posts are fixedly connected to the outer sides of both the first and second turntables. The number of fixed posts connected to the first and second turntables is the same. One end of each fixed post extends beyond the outer side of the first turntable. A movable groove is formed in the middle of each fixed post. A spring is fixedly connected to the bottom end of the movable groove. A movable rod is fixedly connected to the upper end of the spring. One end of the movable rod passes through the movable groove and is fixedly connected to a chip picker outside the fixed post. The chip picker is used to pick up the chip body. A connecting plate is fixedly connected to the top of the end of the movable rod that extends beyond the outer side of the first turntable. Four vertically distributed push blocks are fixedly connected to the middle of the support frame. The push blocks are adapted to the connecting plates. The side of the push block that contacts the connecting plate is arc-shaped and has the same center as the first turntable. The front side of the push block is an isosceles trapezoid.

[0006] Preferably, the longitudinal central axes of the first turntable, the second turntable, and the pusher are on the same plane, and the four pushers are divided into two groups, with the two groups of pushers symmetrically distributed around the transverse central axes of the first turntable and the second turntable, respectively.

[0007] Preferably, the number of fixed posts fixedly connected to the outside of the first turntable and the second turntable is an even number.

[0008] Preferably, the moving groove is a T-shaped groove, the moving rod is a T-shaped rod, the push block is located between the support frame, the connecting plate, the moving rod and the first turntable, and a gap is left between the push block and the first turntable and the moving rod.

[0009] Preferably, the support frame is a U-shaped frame, and a chip adhesive plate is slidably connected to the top of the support frame. One side of the chip adhesive plate extends out of the support frame and is attached to the chip body.

[0010] Preferably, the chip adhesive plate is a T-shaped plate, with a handle fixedly connected to the lower end of the chip adhesive plate and a locking block fixedly connected to the top end of the chip adhesive plate, the locking block being movably engaged with the support frame.

[0011] Preferably, a motor is fixedly connected to one side of the support frame, a half gear is fixedly sleeved at the output end of the motor, a first sprocket meshes with one side of the half gear, the first sprocket is rotatably connected to the support frame, a second sprocket meshes with the lower end of the first sprocket, the shaft of the second sprocket passes through the support frame and is fixedly connected to the second turntable, a belt assembly is fixedly sleeved at the middle of the first sprocket, and the shaft of one end of the belt assembly passes through the support frame and is fixedly connected to the first turntable.

[0012] The beneficial effects of this utility model are as follows: When the first and second turntables rotate, they will drive the fixed column to rotate together. The fixed column restricts the direction and distance of movement of the moving rod through the moving groove and spring, thereby restricting the direction and distance of movement of the chip picker and the chip body. It also allows the relative distance between the chip body and the first turntable to be changed. When the connecting plate is rotated by the first turntable and the push block is in contact, the push block will push the connecting plate away from the first turntable, thereby causing the chip picker and the chip body to move away from the first turntable. This causes the chip pickers connected to the first and second turntables to move towards each other, so that both sides of the chip body are in contact with the chip pickers. At this time, one chip picker is closed and the other chip picker is opened, which can complete the inversion and flipping of the chip body. At the same time, the chip body is transferred from the second turntable to the first turntable. During the inversion and flipping process, the transfer of the chip body is stable and fast, and the collision between the chip body and the chip picker is avoided and the chip body is not damaged.

[0013] Starting the motor drives the half gear to rotate, which in turn drives the first sprocket to rotate intermittently. This, in turn, causes the first sprocket to drive the first and second turntables to rotate intermittently via the second sprocket and belt assembly. This keeps the first and second turntables stationary during chip transfer, facilitating chip transfer and improving the success rate of flip-chip mounting. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of an embodiment of the present utility model;

[0016] Figure 2 This is a partially cutaway three-dimensional structural diagram of the support frame of this utility model;

[0017] Figure 3This is a schematic diagram of the three-dimensional structure of the push block of this utility model;

[0018] Figure 4 This is a partial cross-sectional structural diagram of the first turntable of this utility model.

[0019] The diagram is marked as follows:

[0020] 1. Support frame; 2. First turntable; 3. Second turntable; 4. Fixed column; 5. Moving rod; 6. Connecting plate; 7. Chip picker; 8. Push block; 9. Chip body; 10. Spring; 11. Moving groove; 12. Chip pasting plate; 13. Motor; 14. Half gear; 15. First sprocket; 16. Second sprocket; 17. Belt assembly. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0022] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0023] like Figures 1-4As shown, a flip-chip mounting device includes a support frame 1. A first turntable 2 and a second turntable 3 are rotatably connected to the upper and lower ends of the support frame 1, respectively. A plurality of annularly distributed fixed posts 4 are fixedly connected to the outer sides of both the first turntable 2 and the second turntable 3. The number of fixed posts 4 connected to the first turntable 2 and the second turntable 3 is the same. One end of each fixed post 4 extends beyond the outside of the first turntable 2. A moving groove 11 is formed in the middle of each fixed post 4. A spring 10 is fixedly connected to the bottom end of the moving groove 11. A moving rod 5 is fixedly connected to the upper end of the spring 10. One end of the moving rod 5 passes through the moving groove 11 and is fixedly connected to a chip picker 7 outside the fixed post 4. The chip picker 7 is used to pick up the chip body 9. A component is fixedly connected to the top of the end of the moving rod 5 that extends beyond the outside of the first turntable 2. Four vertically distributed push blocks 8 are fixedly connected to the middle of the connecting plate 6 and the support frame 1. The push blocks 8 are adapted to the connecting plate 6. The side of the push block 8 that is in contact with the connecting plate 6 is arc-shaped and has the same center as the first turntable 2. The front of the push block 8 is an isosceles trapezoid. The longitudinal central axes of the first turntable 2, the second turntable 3 and the push blocks 8 are on the same plane. The four push blocks 8 are divided into two groups. The two groups of push blocks 8 are symmetrically distributed with the transverse central axes of the first turntable 2 and the second turntable 3 as the center. The number of fixed columns 4 fixedly connected to the outside of the first turntable 2 and the second turntable 3 is even. The moving groove 11 is a T-shaped groove and the moving rod 5 is a T-shaped rod. The push blocks 8 are located between the support frame 1, the connecting plate 6, the moving rod 5 and the first turntable 2. There is a gap between the push blocks 8 and the first turntable 2 and the moving rod 5. The support frame 1 is a U-shaped frame. A chip adhesive plate 12 is slidably connected to the top of the support frame 1. One side of the chip adhesive plate 12 extends out of the support frame 1 and fits against the chip body 9. The chip adhesive plate 12 is a T-shaped plate. A handle is fixedly connected to the lower end of the chip adhesive plate 12, and a locking block is fixedly connected to the top of the chip adhesive plate 12. The locking block is movably engaged with the support frame 1. In use, the first turntable 2 and the second turntable 3 are rotatably connected to the upper and lower ends of the support frame 1, respectively, so that the support frame 1 restricts the rotation position of the first turntable 2 and the second turntable 3. Several ring-shaped fixed posts 4 are fixedly connected to the outer sides of the first turntable 2 and the second turntable 3, so that when the first turntable 2 and the second turntable 3 rotate, they will drive the fixed posts 4 to rotate together. One end of the fixed post 4 extends... Outside the first turntable 2, a movable groove 11 is provided in the middle of the fixed post 4. A spring 10 is fixedly connected to the bottom end of the movable groove 11, and a movable rod 5 is fixedly connected to the upper end of the spring 10. One end of the movable rod 5 passes through the movable groove 11 and is fixedly connected to the outside of the fixed post 4 to a chip picker 7. The chip picker 7 is used to pick up the chip body 9, so that the fixed post 4 restricts the moving direction and moving distance of the movable rod 5 through the movable groove 11 and the spring 10, thereby restricting the moving direction and moving distance of the chip picker 7 and the chip body 9, and also allowing the relative distance between the chip body 9 and the first turntable 2 to be changed. A connecting plate 6 is fixedly connected to the top of the end of the movable rod 5 that passes through to the outside of the first turntable 2. Four vertically distributed push blocks 8 are fixedly connected to the middle of the support frame 1.Push block 8 is adapted to connecting plate 6. The side of push block 8 that contacts connecting plate 6 is arc-shaped and has the same center as the first turntable 2. The front of push block 8 is an isosceles trapezoid, causing the first turntable 2 to drive the connecting plate 6 to rotate. When push block 8 is in contact, it pushes connecting plate 6 away from the first turntable 2, thereby causing chip picker 7 and chip body 9 to move away from the first turntable 2. This causes chip picker 7, which is connected to the first turntable 2 and the second turntable 3, to move towards each other, so that both sides of chip body 9 are in contact with chip picker 7. At this time, one chip picker 7 is closed, and the other chip picker 9 is closed. When the chip picker 7 is opened, the chip body 9 can be flipped and rotated, simultaneously transferring the chip body 9 from the second turntable 3 to the first turntable 2. During this flipping process, the transfer of the chip body 9 is stable and rapid, avoiding damage from collisions between the chip body 9 and the chip picker 7. The longitudinal axes of the first turntable 2, the second turntable 3, and the push blocks 8 are on the same plane. The four push blocks 8 are divided into two groups, symmetrically distributed around the transverse axes of the first turntable 2 and the second turntable 3. The number of fixing posts 4 externally connected to the first turntable 2 and the second turntable 3 is even, ensuring... When the second turntable 3 and the first turntable 2 rotate, the chip picker 7 will come close to each other, causing the push block 8 to fit against the connecting plate 6. The T-shaped moving groove 11 and the T-shaped moving rod 5 provide good positional control. The push block 8 is positioned between the support frame 1, the connecting plate 6, the moving rod 5, and the first turntable 2, with a gap between the push block 8 and the first turntable 2 and the moving rod 5, ensuring that the push block 8 does not interfere with the rotation of the first turntable 2 and the fixed column 4. The U-shaped support frame 1 provides stable positioning. The chip adhesive plate 12 is slidably connected to the top of the support frame 1. One side of the chip adhesive plate 12 extends outward from the support frame 1 and fits against the chip body 9, allowing the chip adhesive plate 12 to adhere to the flipped chip body 9. This facilitates easy removal of the chip body 9 by the operator. The chip adhesive plate 12 is T-shaped, and a handle is fixedly connected to its lower end, ensuring a stable connection between the chip adhesive plate 12 and the support frame 1 and making the chip adhesive plate 12 easy to handle. A locking block is fixedly connected to the top of the chip adhesive plate 12, engaging with the support frame 1 to ensure a stable position after the chip adhesive plate 12 is connected to the support frame 1.

[0024] As a preferred embodiment of this example, Figure 1 and Figure 2As shown, a motor 13 is fixedly connected to one side of the support frame 1. A half gear 14 is fixedly sleeved at the output end of the motor 13. A first spur gear 15 meshes with one side of the half gear 14. The first spur gear 15 is rotatably connected to the support frame 1. A second spur gear 16 meshes with the lower end of the first spur gear 15. The rotating shaft in the middle of the second spur gear 16 passes through the support frame 1 and is fixedly connected to the second turntable 3. A belt assembly 17 is fixedly sleeved at the middle of the first spur gear 15. The rotating shaft at one end of the belt assembly 17 passes through the support frame 1 and is fixedly connected to the first turntable 2. This allows the starter motor 13 to drive the half gear 14 to rotate, which in turn drives the first spur gear 15 to rotate intermittently. Consequently, the first spur gear 15, through the second spur gear 16 and the belt assembly 17, drives the first turntable 2 and the second turntable 3 to rotate intermittently. This ensures that the first turntable 2 and the second turntable 3 are stationary when the chip body 9 is being transferred, facilitating the transfer of the chip body 9 and improving the success rate of flip-chip mounting of the chip body 9.

[0025] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0026] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A chip flip-chip mounting apparatus, comprising a support frame (1), characterized in that, The support frame (1) is rotatably connected to a first turntable (2) and a second turntable (3) at its upper and lower ends, respectively. Several annularly distributed fixed posts (4) are fixedly connected to the outer sides of both the first turntable (2) and the second turntable (3). The number of fixed posts (4) connected to the first turntable (2) and the second turntable (3) is the same. One end of each fixed post (4) extends beyond the outside of the first turntable (2). A moving groove (11) is provided in the middle of each fixed post (4). A spring (10) is fixedly connected to the bottom end of the moving groove (11), and a moving rod (5) is fixedly connected to the upper end of the spring (10). One end of the moving rod (5) passes through the moving slot (11) and is fixedly connected to the outside of the fixed column (4) with a chip picker (7). The chip picker (7) is used to pick up the chip body (9). The top of the end of the moving rod (5) that passes through the outside of the first turntable (2) is fixedly connected to a connecting plate (6). Four vertically distributed push blocks (8) are fixedly connected to the middle of the support frame (1). The push blocks (8) are adapted to the connecting plate (6). The side of the push block (8) that is in contact with the connecting plate (6) is arc-shaped and has the same center as the first turntable (2). The front of the push block (8) is an isosceles trapezoid.

2. The chip flip-chip mounting equipment according to claim 1, characterized in that, The longitudinal central axes of the first turntable (2), the second turntable (3) and the push block (8) are on the same plane. The four push blocks (8) are divided into two groups, and the two groups of push blocks (8) are symmetrically distributed with the transverse central axes of the first turntable (2) and the second turntable (3) as the center.

3. The chip flip-chip mounting equipment according to claim 1, characterized in that, The number of fixed posts (4) that are fixedly connected to the outside of the first turntable (2) and the second turntable (3) is even.

4. The chip flip-chip mounting equipment according to claim 1, characterized in that, The moving groove (11) is a T-shaped groove, the moving rod (5) is a T-shaped rod, and the push block (8) is located between the support frame (1), the connecting plate (6), the moving rod (5) and the first turntable (2). There is a gap between the push block (8) and the first turntable (2) and the moving rod (5).

5. The chip flip-chip mounting equipment according to claim 1, characterized in that, The support frame (1) is a U-shaped frame, and a chip adhesive plate (12) is slidably connected to the top of the support frame (1). One side of the chip adhesive plate (12) extends out of the support frame (1) and fits against the chip body (9).

6. The chip flip-chip mounting equipment according to claim 5, characterized in that, The chip adhesive plate (12) is a T-shaped plate. A handle is fixedly connected to the lower end of the chip adhesive plate (12), and a locking block is fixedly connected to the top end of the chip adhesive plate (12). The locking block is movably engaged with the support frame (1).

7. The chip flip-chip mounting equipment according to claim 1, characterized in that, A motor (13) is fixedly connected to one side of the support frame (1). A half gear (14) is fixedly sleeved at the output end of the motor (13). A first spur gear (15) meshes with one side of the half gear (14). The first spur gear (15) is rotatably connected to the support frame (1). A second spur gear (16) meshes with the lower end of the first spur gear (15). The rotating shaft in the middle of the second spur gear (16) passes through the support frame (1) and is fixedly connected to the second turntable (3). A belt assembly (17) is fixedly sleeved at the middle of the first spur gear (15). The rotating shaft at one end of the belt assembly (17) passes through the support frame (1) and is fixedly connected to the first turntable (2).

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