CN219267630U

CN219267630U - Chip sucking disc

Info

Publication number: CN219267630U
Application number: CN202320800022.0U
Authority: CN
Inventors: 赵雪; 邹佩纯; 温正萍
Original assignee: Sichuan Xumaowei Technology Co ltd
Current assignee: Sichuan Xumaowei Technology Co ltd
Priority date: 2023-04-12
Filing date: 2023-04-12
Publication date: 2023-06-27
Anticipated expiration: 2033-04-12

Abstract

The utility model provides a chip sucking disc, which is internally provided with a cavity, and the top surface of the chip sucking disc is provided with a plurality of sucking holes communicated with the cavity. The top surface of sucking disc is equipped with detachable locating plate, and the thickness of locating plate is greater than or equal to the thickness of chip, and a plurality of locating holes have been seted up to the locating plate for hold the chip, and locating hole and lead frame's pin one-to-one, have at least one hole of inhaling in the scope of locating hole. The bonding core work of lead frames of different types can be adapted only by replacing the positioning plate, and the production cost can be effectively reduced.

Description

Chip sucking disc

Technical Field

The utility model belongs to the technical field of semiconductor device production appliances, and particularly relates to a chip sucker.

Background

Most of chips used for manufacturing the diode are in a bulk state, but not in a complete wafer state, so that when the chips are glued, the chips are required to be filled into a preset sucker, counter bores are formed in preset positions of the top surface of the sucker and used for placing the chips, and the positions of the counter bores correspond to pins on a lead frame to be glued one by one. Therefore, when the lead frames of different types are glued with cores, the corresponding sucking discs are required to be used for fixing the chips, the structure of the sucking discs is complex, not only is the counter bore of the top surface required to be machined, but also the bottom of each counter bore is required to be machined to be provided with a sucking hole, and a cavity communicated with the sucking hole is required to be machined in the sucking discs, so that the manufacturing cost is relatively high.

Disclosure of Invention

In order to solve the defects in the prior art, the utility model provides the chip sucking disc which can adapt to the core sticking work of lead frames of different types only by replacing the positioning plate, and can effectively reduce the production cost.

In order to achieve the object of the utility model, the following scheme is adopted:

a chip sucker is provided with a cavity inside, and a plurality of sucking holes communicated with the cavity are formed in the top surface. The top surface of sucking disc is equipped with detachable locating plate, and the thickness of locating plate is greater than or equal to the thickness of chip, and a plurality of locating holes have been seted up to the locating plate for hold the chip, and locating hole and lead frame's pin one-to-one, have at least one hole of inhaling in the scope of locating hole.

Further, the surrounding of the locating plate extends downwards vertically and is provided with a side coaming, and the outer wall of the side coaming is attached to the outer wall of the sucker.

Further, the side wall of the sucker is provided with a side hole communicated with the cavity, and when the positioning plate is assembled to the sucker, the side coaming covers the side hole.

The utility model has the beneficial effects that: when bonding the core to the lead frame of different models, only need to change the locating plate can, need not to change sucking disc wholly, and the sucking disc uses as general instrument, only need one can, the effectual quantity and the cost that reduces the sucking disc, and the locating plate wholly is dull and stereotyped structure, the processing of being convenient for more, processing cost is lower.

Drawings

The drawings described herein are for illustration of selected embodiments only and not all possible implementations, and are not intended to limit the scope of the utility model.

Fig. 1 shows a schematic structural diagram of the present application.

Figure 2 shows a cross-sectional view of the positioning plate after assembly with the suction cup.

Fig. 3 shows a partial enlarged view at a in fig. 2.

The marks in the figure: cavity-11, suction hole-12, side hole-13, locating plate-2, locating hole-21, side wall plate-22.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the following detailed description of the embodiments of the present utility model will be given with reference to the accompanying drawings, but the described embodiments of the present utility model are some, but not all embodiments of the present utility model.

As shown in fig. 1 to 3, a chip suction cup has a cavity 11 in the inside thereof, and a plurality of suction holes 12 communicating with the cavity 11 on the top surface thereof. The top surface of sucking disc is equipped with detachable locating plate 2, and the thickness of locating plate 2 is greater than or equal to the thickness of chip, and locating plate 2 has seted up a plurality of locating holes 21 for hold the chip, and locating hole 21 and lead frame's pin one-to-one, have at least one suction hole 12 in the scope of locating hole 21. The sucker is used as a universal tool, and the top surface of the sucker is provided with the more dense suction holes 12, so that even if the sucker is matched with different positioning plates 2, at least one suction hole 12 exists in the positioning holes 21, and the suction holes 12 in the range of the positioning holes 21 are used for sucking chips; when gluing the core to the lead frame of different models, only need change locating plate 2 can, need not to change sucking disc wholly, and locating plate 2 wholly is flat structure, and the processing of being convenient for more, processing cost is lower, and the sucking disc uses as universal tool, only need one can, the effectual quantity and the cost that reduces the sucking disc.

Preferably, as shown in fig. 1 and 3, the periphery of the positioning plate 2 extends vertically and downwardly to form a side wall plate 22, and the outer wall of the side wall plate 22 is attached to the outer wall of the sucker, so that the positioning plate 2 is detachably connected to the sucker.

Further preferably, as shown in fig. 3, the side wall of the suction cup is provided with a side hole 13 communicated with the cavity 11, when the positioning plate 2 is assembled to the suction cup, the side wall plate 22 covers the side hole 13, the side wall plate 22 can be adsorbed by the adsorption force generated by the side hole 13, the positioning plate 2 can be assembled and disassembled more conveniently, and the positioning plate 2 can be assembled on the suction cup more stably.

The foregoing description of the preferred embodiments of the utility model is merely exemplary and is not intended to be exhaustive or limiting of the utility model. It will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the utility model.

Claims

1. The utility model provides a chip sucking disc, its inside has cavity (11), and the top surface has a plurality of suction holes (12) that communicate with cavity (11), its characterized in that, the top surface of sucking disc is equipped with detachable locating plate (2), the thickness of locating plate (2) is greater than or equal to the thickness of chip, a plurality of locating holes (21) have been seted up to locating plate (2) for hold the chip, and locating hole (21) and lead frame's pin one-to-one, have at least one suction hole (12) in the scope of locating hole (21).

2. The chip sucker according to claim 1, wherein the periphery of the positioning plate (2) is vertically and downwardly extended and provided with a side wall plate (22), and the outer wall of the side wall plate (22) is attached to the outer wall of the sucker.

3. A chip suction cup according to claim 2, characterized in that the side wall of the suction cup is provided with a side hole (13) communicating with the cavity (11), and that the side wall plate (22) covers the side hole (13) when the positioning plate (2) is assembled to the suction cup.