CN217719550U

CN217719550U - Transfer platform and transfer system

Info

Publication number: CN217719550U
Application number: CN202221945590.1U
Authority: CN
Inventors: 郭范诗; 江积水; 吕永亮; 雷有禧; 陈冬保; 张现磊
Original assignee: Kunshanqiu Titanium Photoelectric Technology Co Ltd
Current assignee: Kunshanqiu Titanium Photoelectric Technology Co Ltd
Priority date: 2022-07-26
Filing date: 2022-07-26
Publication date: 2022-11-01
Anticipated expiration: 2032-07-26

Abstract

The utility model discloses a transfer platform and transfer system, transfer platform include the platform base and locate the first flexible suction nozzle on the platform base, and the platform base is equipped with first suction hole, and first flexible suction nozzle is equipped with the second suction hole that communicates with first suction hole. The first flexible suction nozzle is arranged on the platform base, so that the chip is in flexible contact with the transfer platform when in contact with the transfer platform, and the chip can be prevented from being broken due to rigid contact with the platform base; and first flexible suction nozzle still has the absorption fixed action to the chip, and when the chip was transported to the transfer platform on, the position that can avoid the chip took place to remove, influences the encapsulation precision of chip.

Description

Transfer platform and transfer system

Technical Field

The utility model relates to a chip package technical field especially relates to a transfer platform and transfer system.

Background

The DB (Die Bond) machine is one of the important devices in the COB (Chip On Board) process, the Chip is the core material of the DB, the cost is the highest of all the materials in the COB section, and there is no repair value if an abnormality occurs, however, it is important to improve the yield of the product, reduce the loss of the company, and eliminate the risk of abnormal Chip process. Through major abnormity history analysis of the DB station, the chip breakage abnormity occurs frequently, materials are directly scrapped, prevention and improvement measures given in the early stage can only achieve the effect of reduction, the abnormity can not be completely eradicated, the abnormity occurs in large batch, and huge loss is brought to companies.

Chip bursts apart unusually frequently in current DB station, and the leading cause is because the transfer platform that uses at present is the plane that the wolfram steel made, and the chip contacts for a long time with the plane for the transfer platform can be worn and torn, appears unevenness's phenomenon. Unevenness of the transfer platform can directly cause the following two problems:

1. when the chip is picked up by the Pick-up head (Pick haw) and then rotated by 90 degrees to be placed on the transfer platform, the chip is in a falling state when the set height difference of the chip is more than 500um, and the stress point can directly break up, so that the product is scrapped. In addition, the twice pressure that the chip is subjected to Pick-up by the Bond head (Bond haed) and Pick-up by the Pick haed increases the chance of the chip breaking.

2. After the platform uses wearing and tearing to appear the recess for a long time, the chip leaks the vacuum when placing back vacuum adsorption, and the chip can't be fixed, can appear certain skew when Bond has absorbs, causes the attached skew of chip, leads to equipment stability to reduce.

Moreover, the transit platform is made of tungsten steel, so that the transit platform is high in hardness, easy to store foreign matters in a planar structure, short in service cycle and high in price.

SUMMERY OF THE UTILITY MODEL

In order to overcome the shortcoming and the deficiency that exist among the prior art, the utility model aims to provide a transfer platform and transfer system to chip appears collapsing garrulous problem easily in the transfer platform among the solution prior art.

The purpose of the utility model is realized through the following technical scheme:

the utility model provides a transfer platform, include the platform base and locate first flexible suction nozzle on the platform base, the platform base is equipped with first suction hole, first flexible suction nozzle be equipped with the second suction hole of first suction hole intercommunication, when treating the transfer article place in when on the first flexible suction nozzle, first suction hole with the second suction hole adsorbs treat the transfer article, and will treat the transfer article and fix on the first flexible suction nozzle.

Further, a boss is arranged on one side, far away from the platform base, of the first flexible suction nozzle and surrounds the periphery of the first flexible suction nozzle.

Further, the height of the boss is 0.1-0.5 mm, and the width of the boss is 0.1-0.3 mm.

Further, the longitudinal section of the boss is square, trapezoid or semicircular.

Further, the opening of the second suction hole is located in the area surrounded by the boss.

Further, the platform base is provided with an installation column, the first flexible suction nozzle is provided with an installation hole matched with the installation column, and the installation column is in interference fit with the installation hole; or the first flexible suction nozzle is provided with a mounting column, the platform base is provided with a mounting hole matched with the mounting column, and the mounting column is in interference fit with the mounting hole.

Further, the first air suction hole is arranged on the mounting column and penetrates through the mounting column.

Furthermore, one side of the platform base, which faces the first flexible suction nozzle, is provided with a limiting table, and the limiting table is arranged at the edge of the platform base.

Further, the lateral wall of platform base is equipped with the locating pin.

Furthermore, a weight reduction groove is formed in one side, far away from the first flexible suction nozzle, of the platform base.

The utility model also provides a transfer system, including pick-up head and foretell transfer platform, the last flexible suction nozzle of second that is equipped with of pick-up head.

The utility model discloses beneficial effect lies in: the first flexible suction nozzle is arranged on the platform base, so that the object to be transferred is in flexible contact with the transfer platform when in contact with the transfer platform, and the light and thin object to be transferred can be prevented from being in rigid contact with the platform base, so that the object to be transferred is prevented from being broken; and first flexible suction nozzle still treats the transfer article and has the absorption fixed action, when treating the transfer article and transport to the transfer platform on, can avoid treating the position of transfer article and take place to remove, influences the follow-up transfer article of treating and snatchs the location in the operation process.

Drawings

Fig. 1 is a schematic view of a longitudinal cross-sectional structure of a transfer platform in the present invention;

fig. 2 is a schematic top view of the platform base according to the present invention;

fig. 3 is a schematic bottom perspective view of the middle platform base of the present invention;

FIG. 4 is a schematic top perspective view of the first flexible nozzle of the present invention;

FIG. 5 is a schematic longitudinal sectional view of the first flexible suction nozzle of the present invention;

FIG. 6 is a schematic view of the longitudinal cross-section structure of the boss of the present invention;

FIG. 7 is a schematic bottom perspective view of the first flexible suction nozzle of the present invention;

fig. 8 is a schematic perspective view of a second flexible suction nozzle and a suction nozzle holder according to the present invention.

In the figure: the platform comprises a platform base 10, a first air suction hole 101, a weight reduction groove 102, a mounting column 11, a limiting table 12 and a positioning pin 13; the flexible suction nozzle comprises a first flexible suction nozzle 20, a second suction hole 201, a mounting hole 202 and a boss 21; a second flexible nozzle 31, a nozzle holder 32.

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the objectives of the present invention, the following detailed descriptions are provided in conjunction with the accompanying drawings and preferred embodiments for the specific implementation, structure, features and effects of the transfer platform and the transfer system according to the present invention as follows:

fig. 1 is a schematic view of a longitudinal section structure of the middle transfer platform of the present invention. Fig. 2 is a schematic view of the top-down three-dimensional structure of the middle platform base of the present invention. Fig. 3 is a schematic bottom perspective view of the middle platform base of the present invention. Fig. 4 is a schematic top perspective view of the first flexible nozzle of the present invention.

Fig. 5 is a schematic view of the structure of the longitudinal section of the first flexible nozzle of the present invention. Fig. 6 is a schematic view of the longitudinal section structure of the middle boss of the present invention. Fig. 7 is a schematic bottom perspective view of the first flexible nozzle of the present invention.

As shown in fig. 1 to 7, the utility model provides a pair of transfer platform, including platform base 10 and locate the first flexible suction nozzle 20 on the platform base 10, platform base 10 is equipped with first suction hole 101, and first flexible suction nozzle 20 is equipped with the second suction hole 201 with first suction hole 101 intercommunication. Wherein, platform base 10 adopts the stereoplasm material to make, preferably adopts stainless steel (for example SUS304 stainless steel), and the cost is lower, and life is longer. The first flexible suction nozzle 20 is preferably made of rubber or other material having elasticity. When the article to be transferred is placed on the first flexible suction nozzle 20, the article to be transferred is sucked through the first suction hole 101 and the second suction hole 201, and is fixed on the first flexible suction nozzle 20. In this embodiment, the article to be transferred may be a thin and light article or a fragile and fragile article, such as a chip.

The first flexible suction nozzle 20 is arranged on the platform base 10, so that the chip is in flexible contact when being in contact with the transfer platform, the situation that the chip is broken due to rigid contact between the chip and the platform base 10 in the prior art can be avoided, and the chip is effectively protected; and first flexible suction nozzle 20 still has the absorption fixed action to the chip, and when the chip was transported to the transfer platform on, the position that can avoid the chip took place to remove, has improved the transportation precision of chip.

Preferably, the first air suction hole 101 and the second air suction hole 201 are substantially columnar and are coaxially arranged in the vertical direction F1, so that the first air suction hole 101, the second air suction hole 201 and the first flexible suction nozzle 20 form a cavity therebetween, and when the cavity is pumped to a negative pressure state, the first flexible suction nozzle 20 can suck the article to be transferred. . The first suction hole 101 and the second suction hole 201 have substantially the same aperture, and the maximum area of the first suction hole 101 and the second suction hole 201 is ensured to be communicated with each other, so that the gap between the chip and the first flexible suction nozzle 20 can be quickly and effectively vacuumized, the first flexible suction nozzle 20 has better suction force, and the first suction hole 101 and the second suction hole 201 can be conveniently processed. Of course, in other embodiments, the first suction holes 101 and the second suction holes 201 may also be wavy, and it is only necessary that the first suction holes 101 and the second suction holes 201 are communicated with each other.

In this embodiment, the cross section of the first flexible suction nozzle 20 is a square structure, and the cross section of the second suction hole 201 is a circular structure, and the square structure is convenient to adapt to the square shape of the chip. Of course, in other embodiments, the cross section of the first flexible nozzle 20 may also be a circular structure, and the specific shape needs to be designed in combination with the shape of the chip.

Further, a side of the first flexible suction nozzle 20 away from the platform base 10 is provided with a boss 21, the boss 21 is disposed around a periphery of the first flexible suction nozzle 20, and finally the boss 21 surrounds and is in an annular structure, that is, the first flexible suction nozzle 20 is provided with a circle of boss 21 protruding out of the upper top surface along the vertical direction. As shown in fig. 5, the width a of the boss 21 is 0.1-0.3 mm, and the height b of the boss 21 is 0.1-0.5 mm. Preferably, the width a of the boss 21 is 0.2 mm, and the height b of the boss 21 is 0.3 mm, so that when the first flexible suction nozzle 20 adsorbs a chip, the thickness of the annular boss 21 is thin, and deformation of the boss 21 is facilitated after the first flexible suction nozzle receives an extrusion force, so as to achieve a better buffering effect.

Further, as shown in fig. 4, the opening of the second suction hole 201 is located in an area surrounded by the boss 21. Preferably, the opening of the second suction hole 201 is located in the center of the area surrounded by the boss 21, so that the suction force of the first flexible suction nozzle 20 is more uniform.

Further, the boss 21 has a square, trapezoidal or semicircular longitudinal sectional shape. In the present embodiment, the boss 21 has a square shape in longitudinal section (fig. 5 and 6 a). Of course, in other embodiments, the longitudinal cross-sectional shape of the boss 21 may be trapezoidal (fig. 6 b) or semicircular (fig. 6 c), i.e., the longitudinal cross-section of the boss 21 is configured to be small at the top and large at the bottom. Because the boss 21's longitudinal section is little then represents the boss 21 the wall thin, and the wall is thin then the flexibility is bigger, so the cushioning effect is also better to further increase the cushioning effect, avoid the chip to jump and break up, the boss 21 still is not fragile after the repeated deformation can be guaranteed to the great below of the longitudinal section of boss 21 simultaneously.

In this embodiment, as shown in fig. 2, the platform base 10 is provided with a mounting post 11, the first flexible suction nozzle 20 is provided with a mounting hole 202 matched with the mounting post 11, and the mounting post 11 can be in interference fit with the mounting hole 202, so that the first flexible suction nozzle 20 and the platform base 10 can be detachably connected, and replacement of suction nozzles of different models is facilitated. The first air suction holes 101 are arranged on the mounting post 11 and penetrate through the mounting post 11, and the second air suction holes 201 are communicated with the mounting holes 202. Preferably, the size of the mounting hole 202 is larger than that of the second suction hole 201. Because the first suction hole 101 needs to penetrate through the mounting post 11, the first suction hole 101 and the second suction hole 201 have the same aperture size, and the outer diameter of the mounting post 11 is substantially the same as the aperture size of the mounting hole 202, the outer diameter of the mounting post 11 must be larger than the aperture size of the first suction hole 101, so that the first suction hole 101 can be formed in the mounting post 11, that is, the aperture size of the mounting hole 202 must also be larger than the aperture size of the second suction hole 201. Of course, in other embodiments, the first flexible suction nozzle 20 may be provided with the mounting post 11, the platform base 10 may be provided with the mounting hole 202 engaged with the mounting post 11, and the mounting post 11 is interference fitted with the mounting hole 202, but this design is convenient for the first flexible suction nozzle 20 to be installed.

Preferably, the mounting posts 11 and the mounting holes 202 are prism structures, such as quadrangular prisms, so as to prevent the first flexible suction nozzle 20 from rotating relative to the platform base 10. Of course, in other embodiments, a limiting structure may be provided between the mounting post 11 and the mounting hole 202 to prevent the first flexible suction nozzle 20 from rotating relative to the platform base 10.

In this embodiment, a limiting table 12 is disposed on one side of the platform base 10 facing the first flexible suction nozzle 20, and the limiting table 12 is disposed on an edge of the platform base 10. Preferably, the stop blocks 12 are disposed on opposite sides of the platform base 10. Because the interval between two spacing platforms 12 just sets up to the width of chip, only with the rotatory 90 back of chip, the chip just can put into and be adsorbed by first flexible suction nozzle 20 between two spacing platforms 12, for example rotatory 80, when the chip put into the transfer platform on, the edge of chip can contradict at the upper surface of spacing platform 12, can't put into between two spacing platforms 12. Therefore, it can be detected by the stopper table 12 whether the Pick had rotates the chip by 90 °.

Further, the side wall of the platform base 10 is provided with a positioning pin 13, so that the transfer platform can be conveniently installed on the transfer system.

Further, a side of the platform base 10 remote from the first flexible suction nozzle 20 is provided with a weight-reducing slot 102 (fig. 3), thereby reducing the weight of the platform base 10. Wherein the first suction hole 101 is communicated with the lightening groove 102, and the bottom of the first suction hole 101 is connected with the vacuum machine, thereby enabling the first flexible suction nozzle 20 to have suction.

The embodiment further provides a transfer system, which includes a pick-up head and the transfer platform, wherein the pick-up head is provided with a second flexible suction nozzle 31, as shown in fig. 8. The pickup head is further provided with a nozzle support 32, and the second flexible nozzle 31 is mounted on the pickup head through the nozzle support 32. Through the second flexible suction nozzle 31 on the pick-up head, the first flexible suction nozzle 20 combined action on the transfer platform is cooperated, and simultaneously the first flexible suction nozzle 20 adsorbs to make the chip hang in the air in a large area, thereby further avoiding the chip from collapsing. Specifically, when the second flexible suction nozzle 31 generates suction, the first flexible suction nozzle 20 needs to release the suction so as to suck the chip to the pick-up head, and then transfer is successful. The second flexible suction nozzle 31 may have the same structure and material as the first flexible suction nozzle 20.

In this document, the terms of upper, lower, left, right, front, rear and the like are used to define the positions of the structures in the drawings and the positions of the structures relative to each other, and are only used for the sake of clarity and convenience in technical solution. It is to be understood that the use of the directional terms should not be taken to limit the scope of the claims. It is also to be understood that the terms "first" and "second," etc., are used herein for descriptive purposes only and are not to be construed as limiting in number or order.

The above description is only a preferred embodiment of the present invention, and the present invention is not limited to any form, and although the present invention has been disclosed with the preferred embodiment, it is not limited to the present invention, and any person skilled in the art can make some changes or modifications within the technical scope of the present invention without departing from the technical scope of the present invention, and any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention are all within the protection scope of the technical solution of the present invention.

Claims

1. The utility model provides a transfer platform, its characterized in that includes platform base (10) and locates first flexible suction nozzle (20) on platform base (10), platform base (10) are equipped with first suction hole (101), first flexible suction nozzle (20) be equipped with second suction hole (201) of first suction hole (101) intercommunication, when treating the transfer article place in on first flexible suction nozzle (20), first suction hole (101) with second suction hole (201) adsorb treat the transfer article, and will treat the transfer article to fix on first flexible suction nozzle (20).

2. Transfer platform according to claim 1, characterized in that the side of the first flexible suction nozzle (20) facing away from the platform base (10) is provided with a boss (21), which boss (21) is arranged around the periphery of the first flexible suction nozzle (20).

3. The transfer platform of claim 2, wherein the height of the boss (21) is 0.1-0.5 mm, and the width of the boss (21) is 0.1-0.3 mm.

4. Transfer platform according to claim 2, characterized in that the longitudinal cross-sectional shape of the boss (21) is square, trapezoidal or semicircular.

5. The transfer platform of claim 1, wherein the platform base (10) is provided with a mounting post (11), the first flexible suction nozzle (20) is provided with a mounting hole (202) matched with the mounting post (11), and the mounting post (11) is in interference fit with the mounting hole (202); or the first flexible suction nozzle (20) is provided with a mounting column (11), the platform base (10) is provided with a mounting hole (202) matched with the mounting column (11), and the mounting column (11) is in interference fit with the mounting hole (202).

6. The transfer platform of claim 5, wherein said first air-absorbing holes (101) are provided on said mounting posts (11) and extend through said mounting posts (11).

7. The transfer platform of claim 1, wherein a side of the platform base (10) facing the first flexible suction nozzle (20) is provided with a limiting table (12), and the limiting table (12) is provided at an edge of the platform base (10).

8. Transfer platform according to claim 1, characterized in that the side walls of the platform base (10) are provided with positioning pins (13).

9. Transfer platform according to claim 1, characterized in that the side of the platform base (10) remote from the first flexible suction nozzle (20) is provided with weight-reducing slots (102).

10. A transfer system comprising a pick-up head with a second flexible nozzle (31) and a transfer platform according to any of claims 1-9.