CN219542909U

CN219542909U - Chip positioning fixture

Info

Publication number: CN219542909U
Application number: CN202320406876.0U
Authority: CN
Inventors: 李雅鲜; 钱峰
Original assignee: Hunan Yuemo Advanced Semiconductor Co ltd
Current assignee: Hunan Yuemo Advanced Semiconductor Co ltd
Priority date: 2023-03-07
Filing date: 2023-03-07
Publication date: 2023-08-18
Anticipated expiration: 2033-03-07

Abstract

The utility model belongs to the technical field of chip processing, and discloses a chip positioning clamp. The chip positioning clamp comprises a bottom plate, a positioning part and a clamping part. The positioning part is arranged on the bottom plate and comprises a first abutting surface and a second abutting surface; the clamping piece is arranged on the bottom plate, the position of the clamping piece relative to the bottom plate is adjustable, the clamping piece comprises a clamping head, and a third abutting surface and a fourth abutting surface are arranged on the clamping head; the first abutting surface, the second abutting surface, the third abutting surface and the fourth abutting surface are surrounded to form a positioning cavity, and the positioning cavity is used for positioning the chip. This chip positioning fixture through adjusting the position of holder, can realize that the size of location chamber is adjustable to fixed not unidimensional chip, the universality is stronger.

Description

Chip positioning fixture

Technical Field

The utility model relates to the technical field of chip processing, in particular to a chip positioning clamp.

Background

The chip package is a process for arranging, pasting, fixing and connecting the chip and other elements on a frame or a substrate by utilizing a film technology and a micro-machining technology, leading out a wiring terminal, and encapsulating and fixing the wiring terminal through a plastic insulating medium to form an integral structure. The chip package includes a printing step for marking information such as the specification of the product and the manufacturer on the chip. In the chip printing process, the chip packaging product is fixed by using a positioning clamp, and then information such as patterns is printed on the chip packaging product by using laser, so that the influence on printing precision caused by the movement of the position of the chip packaging product in the printing process is avoided.

The conventional positioning fixture is shown in fig. 1, and comprises a printing platform 10, a positioning part 20 and a positioning piece 30, wherein the positioning part 20 and the positioning piece 30 are fixedly connected with the printing platform 10, a chip packaging product is placed in the positioning part 20, two adjacent side walls of the chip packaging product are abutted with the positioning part 20, and the other two adjacent side walls are abutted with the positioning piece 30, so that the positioning of the chip packaging product is realized. However, the positioning fixture can only be used for fixing a chip packaging product with one size, when the chip packaging products with various sizes are required to be fixed, various positioning fixtures matched with the positioning fixture are required to be used, the cost is high, the positioning fixture is required to be replaced frequently according to the size of the processed chip packaging product, and the production efficiency is low.

Therefore, it is needed to provide a chip positioning fixture to solve the above-mentioned problems.

Disclosure of Invention

The utility model provides a chip positioning clamp which can be used for positioning chips with various sizes and has strong universality.

To achieve the purpose, the utility model adopts the following technical scheme:

chip positioning fixture includes:

a bottom plate;

the positioning part is arranged on the bottom plate and comprises a first abutting surface and a second abutting surface;

the clamping piece is arranged on the bottom plate, the position of the clamping piece relative to the bottom plate is adjustable, the clamping piece comprises a clamping head, and a third abutting surface and a fourth abutting surface are arranged on the clamping head;

the first abutting surface, the second abutting surface, the third abutting surface and the fourth abutting surface are surrounded to form a positioning cavity, and the positioning cavity is used for positioning the chip.

Optionally, a first avoidance groove is formed between the first abutting surface and the second abutting surface, one corner of the chip enters the first avoidance groove, a second avoidance groove is formed between the third abutting surface and the fourth abutting surface, and the other corner of the chip enters the second avoidance groove.

Optionally, the first avoiding groove is arc-shaped; and/or, the second avoiding groove is arc-shaped.

Optionally, the first abutting surface and the second abutting surface enclose to form an L-like shape, and the third abutting surface and the fourth abutting surface enclose to form an L-like shape.

Optionally, the positioning portion further includes:

the first bearing surface is arranged between the first abutting surface and the second abutting surface and is used for bearing the chip.

Optionally, the clamping member further includes:

the second bearing surface is arranged between the third abutting surface and the fourth abutting surface and is used for bearing the chip, and the height of the second bearing surface relative to the bottom plate is the same as the height of the first bearing surface relative to the bottom plate.

Optionally, a plurality of first connecting holes are formed in the bottom plate, the clamping piece further comprises a base, the clamping head is arranged on the base, a second connecting hole is formed in the base, and a first bolt penetrates through the second connecting hole to be in threaded connection with one first connecting hole selectively.

Optionally, the second connection hole is a kidney-shaped hole.

Optionally, a plurality of the first connection holes are arranged at intervals along a diagonal direction of the positioning cavity.

Optionally, the bottom plate is further provided with a plurality of first mounting holes, the printing platform of the printing device is provided with second mounting holes, and the second bolts selectively penetrate through one of the first mounting holes and are in threaded connection with the second mounting holes.

The utility model has the beneficial effects that:

the utility model provides a chip positioning clamp which comprises a bottom plate, a positioning part and a clamping piece. The locating part includes first face and the second face of leaning against, be equipped with third face and the fourth face of leaning against on the clamping head of clamping piece, first face, second face, third face and the fourth face of leaning against are leaned against to enclose to establish and are used for fixing the location chamber of chip, through setting up first face, second face, third face and the fourth face of leaning against, can spacing four lateral walls of chip, improved the fixed effect of chip greatly, reduced the risk that the chip takes place the aversion at the printing in-process, and then improved the printing precision of chip.

The position of the clamping piece relative to the bottom plate is adjustable, and the size of the positioning cavity can be changed by adjusting the position of the clamping piece, so that the positioning cavity can be suitable for chips with different sizes, and compared with the traditional positioning clamp which can only be specially used for chips with a certain model, the positioning clamp has higher universality, on one hand, the use of the chip positioning clamp is reduced, and the equipment cost is reduced; on the other hand, in the processing process of the chip, the chip positioning clamp is not required to be frequently disassembled and assembled, and the production efficiency is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following description will briefly explain the drawings needed in the description of the embodiments of the present utility model, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the contents of the embodiments of the present utility model and these drawings without inventive effort for those skilled in the art.

FIG. 1 is a schematic view of a prior art positioning fixture;

fig. 2 is a schematic structural diagram of a chip positioning fixture according to an embodiment of the present utility model;

FIG. 3 is a second schematic structural view of a chip positioning fixture according to an embodiment of the present utility model;

fig. 4 is a schematic structural view of a clamping member according to an embodiment of the present utility model.

In fig. 1:

10. a printing platform; 20. a positioning part; 30. a positioning piece;

fig. 2-4:

100. a bottom plate; 110. a first connection hole; 120. a first mounting hole; 200. a positioning part; 210. a first abutment surface; 220. a second abutment surface; 230. a first avoidance groove; 240. a first bearing surface; 300. a clamping member; 310. a clamping head; 311. a third abutment surface; 312. a fourth abutment surface; 313. a second avoidance groove; 320. a second bearing surface; 330. a base; 331. a second connection hole; 332. a first bolt; 400. and positioning the cavity.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are orientation or positional relationships based on those shown in the drawings, merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

The embodiment provides a chip positioning fixture, can be used for the chip of location multiple size, and the universality is stronger.

Specifically, as shown in fig. 2 to 4, the chip positioning jig includes a base plate 100, a positioning portion 200, and a clamping portion. Wherein the base plate 100 is adapted to be coupled to a printing platform of a printing device. The positioning part 200 and the clamping part are both arranged on the bottom plate 100, the positioning part 200 comprises a first abutting surface 210 and a second abutting surface 220, the clamping piece 300 comprises a clamping head 310, a third abutting surface 311 and a fourth abutting surface 312 are arranged on the clamping head 310, a positioning cavity 400 is formed by surrounding the first abutting surface 210, the second abutting surface 220, the third abutting surface 311 and the fourth abutting surface 312, the positioning cavity 400 is used for positioning a chip, and through the arrangement of the first abutting surface 210, the second abutting surface 220, the third abutting surface 311 and the fourth abutting surface 312, four side walls of the chip can be limited, so that the fixing effect of the chip is greatly improved, the risk of shifting the chip in the printing process is reduced, and the printing precision of the chip is further improved. The position of the clamping piece 300 relative to the bottom plate 100 is adjustable, and the size of the positioning cavity 400 can be changed by adjusting the position of the clamping piece 300, so that the positioning cavity 400 can be suitable for chips with different sizes, and compared with the traditional positioning clamp which can only be specially used for chips with a certain model, the positioning clamp has higher universality, on one hand, the use of the chip positioning clamp is reduced, and the equipment cost is reduced; on the other hand, in the processing process of the chip, the chip positioning clamp is not required to be frequently disassembled and assembled, and the production efficiency is improved.

Preferably, a first avoidance groove 230 is arranged between the first abutting surface 210 and the second abutting surface 220, a second avoidance groove 313 is arranged between the third abutting surface 311 and the fourth abutting surface 312, one corner of the chip enters the first avoidance groove 230, and the other corner enters the second avoidance groove 313. Through setting up first groove 230 and the second groove 313 of dodging, can make two angles of chip not atress when fixed, avoid the chip to damage because of local pressure, be favorable to improving the safety in utilization of above-mentioned chip positioning fixture. Alternatively, in the present embodiment, the first escape grooves 230 and the second escape grooves 313 are arc-shaped. In other embodiments, the shapes of the first avoidance groove 230 and the second avoidance groove 313 may be other shapes, such as triangle, U-shape, etc., and may be set according to actual needs. Of course, the shapes of the first escape grooves 230 and the second escape grooves 313 may be the same or different, as long as the corners of the chip can be allowed to enter without force.

Optionally, with continued reference to fig. 2, in the present embodiment, the first abutting surface 210 and the second abutting surface 220 enclose an L-like shape, and the third abutting surface 311 and the fourth abutting surface 312 enclose an L-like shape. With this structure, the first abutting surface 210, the second abutting surface 220, the third abutting surface 311 and the fourth abutting surface 312 can enclose the square positioning cavity 400, which is applied to square chips with various sizes at present, and can limit each side of the square chip, so that the fixing effect is better.

Preferably, with continued reference to fig. 2, the positioning portion 200 further includes a first supporting surface 240, where the first supporting surface 240 is disposed between the first abutting surface 210 and the second abutting surface 220, and the first supporting surface 240 is used for supporting the chip. When the chip is mounted, the chip is firstly placed on the first bearing surface 240, then the chip is pushed to be abutted against the first abutting surface 210 and the second abutting surface 220, and after the positioning of the chip is completed, the position of the clamping piece 300 is adjusted to clamp and fix the chip. Through setting up first bearing face 240, make the chip have certain height from bottom plate 100, the taking of the chip of being convenient for is favorable to improving the installation effectiveness of chip, and then improves the machining efficiency of chip. Optionally, in this embodiment, a portion of the first supporting surface 240 extends along the length direction of the first abutting surface 210, another portion extends along the length direction of the second abutting surface 220, and another portion is disposed at an included angle between the first abutting surface 210 and the second abutting surface 220. In other embodiments, the structure of the first supporting surface 240 may be other, and may be set according to actual needs.

Further preferably, the clamping member 300 further includes a second supporting surface 320, the second supporting surface 320 is disposed between the third abutting surface 311 and the fourth abutting surface 312, the second supporting surface 320 is used for supporting the chip, and the height of the second supporting surface 320 relative to the bottom plate 100 is the same as the height of the first supporting surface 240 relative to the bottom plate 100. By arranging the second bearing surface 320 to assist the first bearing surface 240 to support the chip, the uniformity of the stress of the chip is improved, and the bearing effect is good. Optionally, in this embodiment, the second bearing surface 320 is triangular. In other embodiments, the shape of the second supporting surface 320 may be other, for example, a fan shape, etc., which is set according to practical needs.

Further, with continued reference to fig. 2 and 3, the base plate 100 is provided with a plurality of first connecting holes 110, the clamping member 300 further includes a base 330, the clamping head 310 is disposed on the base 330, the base 330 is provided with a second connecting hole 331, and the first bolt 332 passes through the second connecting hole 331 to be selectively screwed with one of the first connecting holes 110, that is, the clamping member 300 can be fixed at the position of any one of the second connecting holes 331 by the first bolt 332, so as to realize the position adjustment of the clamping member 300 relative to the base plate 100. Alternatively, in the present embodiment, the plurality of first connecting holes 110 are arranged at intervals along the diagonal direction of the positioning cavity 400, so that the positioning portion 200 and the clamping head 310 limit two opposite angles of the chip respectively, a plurality of rows of first connecting holes 110 may be arranged, each row of first connecting holes 110 includes the plurality of first connecting holes 110, and illustratively, two second connecting holes 331 are arranged on the base 330, and therefore, at least two rows of first connecting holes 110 are arranged. In other embodiments, the first connecting holes 110 may be arranged in other manners, such as an array, etc., according to actual needs.

Preferably, the second connection hole 331 is a kidney-shaped hole. After the first connection hole 110 corresponding to the second connection hole 331 is determined, the first bolt 332 is screwed, and the first bolt 332 is not required to be screwed too tightly, at this time, if the third abutting surface 311 and the fourth abutting surface 312 of the clamping head 310 are still a certain distance from the chip, the base 330 can be pushed, the position of the first bolt 332 in the kidney-shaped hole is changed, and when the third abutting surface 311 and the fourth abutting surface 312 are abutted against the side wall of the chip, the first bolt 332 is continuously screwed to fix the base 330.

For easy understanding, the use of the above-mentioned chip positioning jig will now be briefly described:

placing the chip to be processed on the first bearing surface 240, and pushing the chip to enable the first abutting surface 210 and the second abutting surface 220 to abut against the side wall of the chip; then, selecting a proper second connection hole 331, screwing the first bolt 332 into the second connection hole 331 through the first connection hole 110, and not screwing the first bolt 332 too tightly, at this time, when the third abutting surface 311 and the fourth abutting surface 312 are still a certain distance from the chip, the base 330 can be pushed, the position of the first bolt 332 in the kidney-shaped hole is changed, and when the third abutting surface 311 and the fourth abutting surface 312 are abutted against the side wall of the chip, the first bolt 332 is continuously screwed, so as to fix the base 330.

Further, with continued reference to fig. 2 and 3, the base plate 100 is provided with a plurality of first mounting holes 120, the printing platform of the printing device is provided with a second mounting hole, and when the chip positioning fixture is mounted, a second bolt selectively passes through one of the first mounting holes 120 and is in threaded connection with the second mounting hole, and the first mounting hole 120 is selected to ensure that the laser light source can fully cover the chip. Through setting up a plurality of first mounting holes 120 on bottom plate 100, can adjust the position of above-mentioned chip positioning fixture on printing apparatus's print platform according to actual need, be favorable to improving the printing precision. Illustratively, a plurality of second mounting holes may be arranged in an array on the base plate 100, and may be set according to actual needs.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the utility model. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims

1. Chip positioning fixture, its characterized in that includes:

a bottom plate (100);

a positioning portion (200) disposed on the base plate (100), the positioning portion (200) including a first abutment surface (210) and a second abutment surface (220);

the clamping piece (300) is arranged on the bottom plate (100), the position of the clamping piece (300) relative to the bottom plate (100) is adjustable, the clamping piece (300) comprises a clamping head (310), and a third abutting surface (311) and a fourth abutting surface (312) are arranged on the clamping head (310);

the first abutting surface (210), the second abutting surface (220), the third abutting surface (311) and the fourth abutting surface (312) are surrounded to form a positioning cavity (400), and the positioning cavity (400) is used for positioning a chip.

2. The chip positioning fixture according to claim 1, wherein a first avoidance groove (230) is provided between the first abutment surface (210) and the second abutment surface (220), one corner of the chip enters the first avoidance groove (230), a second avoidance groove (313) is provided between the third abutment surface (311) and the fourth abutment surface (312), and the other corner of the chip enters the second avoidance groove (313).

3. The chip positioning jig according to claim 2, wherein the first avoiding groove (230) is arc-shaped; and/or, the second avoiding groove (313) is arc-shaped.

4. The chip positioning jig according to claim 2, wherein the first abutment surface (210) and the second abutment surface (220) enclose an L-like shape, and the third abutment surface (311) and the fourth abutment surface (312) enclose an L-like shape.

5. The chip positioning jig according to claim 1, wherein the positioning portion (200) further comprises:

the first bearing surface (240) is arranged between the first abutting surface (210) and the second abutting surface (220), and the first bearing surface (240) is used for bearing the chip.

6. The chip positioning jig according to claim 5, wherein the clamping member (300) further comprises:

the second bearing surface (320) is arranged between the third bearing surface (311) and the fourth bearing surface (312), the second bearing surface (320) is used for bearing the chip, and the height of the second bearing surface (320) relative to the bottom plate (100) is the same as the height of the first bearing surface (240) relative to the bottom plate (100).

7. The chip positioning fixture according to any one of claims 1-6, wherein a plurality of first connection holes (110) are formed in the base plate (100), the clamping member (300) further comprises a base (330), the clamping head (310) is disposed on the base (330), a second connection hole (331) is formed in the base (330), and a first bolt (332) selectively passes through the second connection hole (331) to be in threaded connection with one of the first connection holes (110).

8. The chip positioning jig according to claim 7, wherein the second connection hole (331) is a kidney-shaped hole.

9. The chip positioning jig according to claim 7, wherein a plurality of the first connection holes (110) are arranged at intervals along a diagonal direction of the positioning cavity (400).

10. The chip positioning fixture according to any one of claims 1 to 6, wherein the base plate (100) is further provided with a plurality of first mounting holes (120), and the printing platform of the printing device is provided with a second mounting hole, and the second bolt selectively passes through one of the first mounting holes (120) and is in threaded connection with the second mounting hole.