CN211741355U

CN211741355U - Probe card base

Info

Publication number: CN211741355U
Application number: CN201922208592.7U
Authority: CN
Inventors: 李芳�
Original assignee: Shenzhen Haosheng Precision Co ltd
Current assignee: Shenzhen Haosheng Precision Co ltd
Priority date: 2019-12-11
Filing date: 2019-12-11
Publication date: 2020-10-23
Anticipated expiration: 2029-12-11

Abstract

The utility model discloses a probe card base belongs to probe card base technical field, including the base main part, the bottom of base main part is provided with printed circuit board, the intermediate position department at printed circuit board top is provided with the probe card, the bottom of probe card evenly is provided with the probe pin that the multiunit runs through to the printed circuit board below, the top cover of probe card is equipped with the connection lid. The utility model discloses a push down the shell under external force (manual) effect, when making the shell downstream, make the rubber gasbag warp under the pressure effect, extend to the inside in first spacing hole through the spacing hole of second until the rubber gasbag, and be parallel structure through the top that makes the rubber gasbag, thereby when making the rubber gasbag upward movement, the parallel structure at top produces reverse resistance to the bottom in the spacing hole of second, make it can not loosen automatically under the effect of no external force, thereby make the top of this base main part more bright and clean, and improved pleasing to the eye effect.

Description

Probe card base

Technical Field

The utility model relates to a probe card base technical field specifically is a probe card base.

Background

The probe card is a test interface, mainly tests a bare chip, tests parameters of the chip by connecting a test machine and the chip and transmitting signals, and a probe card base for assisting the probe card is appeared in order to facilitate the use of the probe card.

However, when the top shell and the bottom shell of the existing probe card base are processed, the top shell and the bottom shell of the existing probe card base are generally fixedly connected by the micro bolts, and the micro bolts are located outside the base, so that the base is not good in appearance effect, and the existing probe card base is complex in structure, so that the utilization rate is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: in order to solve the problems that when the top shell and the bottom shell of the existing probe card base are processed, the top shell and the bottom shell of the existing probe card base are generally fixedly connected by adopting a micro bolt, however, the micro bolt is positioned outside the base, so that the base is not good in aesthetic effect, and the existing probe base is complex in structure, so that the utilization rate is reduced, the probe card base is provided.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a probe card base, includes the base main part, the bottom of base main part is provided with printed circuit board, the intermediate position department at printed circuit board top is provided with the probe card, the bottom of probe card evenly is provided with the probe pin that the multiunit runs through to the printed circuit board below, the top cover of probe card is equipped with the connection lid, the top of connecting the lid is provided with the top shell, the both sides of top shell evenly are provided with the multiunit hole, the bottom of top shell evenly is provided with multiunit rubber air bag, the four corners department at printed circuit board and connection lid top all is provided with first spacing hole, the top in first spacing hole is provided with the spacing hole of second, the top of printed circuit board evenly is provided with the multiunit.

Preferably, the bottom of rubber gasbag is arc structure, and the top of rubber gasbag is parallel structure, the top of rubber gasbag all is provided with the supporting shoe, and the rubber gasbag all through the bottom fixed connection of supporting shoe and connecting cover.

Preferably, the side of the hole away from the top shell is provided with epoxy resin, and the epoxy resin is in an annular structure.

Preferably, the diameter of the first position-limiting hole is twice the diameter of the second position-limiting hole.

Preferably, the top shell is detachably connected with the connecting cover and the printed circuit board respectively through the mutual matching of the rubber air bag, the first limiting hole and the second limiting hole.

Preferably, the top of the top case is provided with a fastening hole.

Preferably, the inner side of the printed circuit board is provided with a notch, and the probe pin penetrates through the notch to the lower part of the printed circuit board.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a make the rubber gasbag on the top shell extend to connect lid and the contact of the spacing hole of second on the printed circuit board, and press down the top shell under external force (manual) effect, when making the downward motion of top shell, make the rubber gasbag warp under the pressure effect, until the rubber gasbag extends to the inside in first spacing hole through the spacing hole of second, and through making the top of rubber gasbag be parallel structure, thereby when making the rubber gasbag move upwards, the parallel structure at top produces reverse resistance to the bottom in second spacing hole, make it can not loosen automatically under the effect of no external force, thereby make the top of this base main part more bright and clean, and improved pleasing to the eye effect;

2. the utility model discloses a connect lid, top shell and printed circuit board to make the structure of whole base main part more simple, and utilize the spacing hole of rubber air bag, first spacing hole and second to make the top shell and connect the fixed more simple between lid and the printed circuit board, and improved the rate of utilization.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the top case of the present invention;

FIG. 3 is a schematic structural view of the connecting cover of the present invention;

FIG. 4 is an enlarged view of the present invention A;

fig. 5 is an enlarged view of the present invention B.

In the figure: 1. a base body; 2. a printed circuit board; 3. a probe card; 4. a probe pin; 5. a notch; 6. a connecting cover; 7. a top shell; 8. a hole; 9. a clamping hole; 10. an epoxy resin; 11. a rubber air bag; 12. a terminal; 13. a first limit hole; 14. a second limiting hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, a probe card base comprises a base body 1, a printed circuit board 2 is arranged at the bottom of the base body 1, a probe card 3 is arranged at the middle position of the top of the printed circuit board 2, a plurality of groups of probe pins 4 penetrating to the lower side of the printed circuit board 2 are uniformly arranged at the bottom of the probe card 3, a connecting cover 6 is sleeved at the top of the probe card 3, a top shell 7 is arranged at the top of the connecting cover 6, a plurality of groups of holes 8 are uniformly arranged at two sides of the top shell 7, a plurality of groups of rubber airbags 11 are uniformly arranged at the bottom of the top shell 7, first limiting holes 13 are formed at four corners of the top of the printed circuit board 2 and the top of the connecting cover 6, second limiting holes 14 are formed at the top of the first.

The utility model discloses a connect lid 6, top shell 7 and printed circuit board 2 to make the structure of whole base main part more simple, and utilize the spacing hole 14 of rubber air bag 11, first spacing hole 13 and second to make top shell 7 and connect the fixed more simple between lid 6 and the printed circuit board 2, and improved the rate of utilization.

Please refer to fig. 1, 2, 4 and 5, the bottom of the rubber airbag 11 is arc-shaped, the top of the rubber airbag 11 is parallel, the top of the rubber airbag 11 is provided with supporting blocks, the rubber airbag 11 is fixedly connected with the bottom of the connecting cover 6 through the supporting blocks, one side of the hole 8 away from the top shell 7 is provided with epoxy resin 10, and the epoxy resin 10 is annular.

According to the probe card base, the top of the rubber air bag 11 is in a parallel structure, so that when the rubber air bag 11 moves upwards, the parallel structure at the top generates reverse resistance to the bottom of the second limiting hole 14, the probe card base cannot automatically loosen under the action of no external force, the top of the base main body is smooth, the attractive effect is improved, and the probe lead is convenient to fix through the epoxy resin 10.

Please refer to fig. 1, 2, 3, 4 and 5, the diameter of the first limiting hole 13 is twice the diameter of the second limiting hole 14, and the top case 7 is detachably connected to the connecting cover 6 and the printed circuit board 2 through the cooperation of the rubber airbag 11, the first limiting hole 13 and the second limiting hole 14.

This kind of probe card base sets the diameter of first spacing hole 13 to the twice of the spacing hole 14 diameter of second to make rubber air bag 11 when the spacing hole 14 of second, be in throughout by the extrusion deformation state, when rubber air bag 11 removed the position to first spacing hole 13, rubber air bag 11 resets under self elasticity effect, thereby fixes top shell 7 and printed circuit board 2, makes its fixed effect better.

Please refer to fig. 1, the top of the top case 7 is provided with a clamping hole 9, the inner side of the printed circuit board 2 is provided with a notch 5, and the probe pin 4 penetrates through the notch 5 to the lower side of the printed circuit board 2.

According to the probe card base, the notch 5 is arranged on the printed circuit board 2, so that the probe pins 4 can extend to the lower part of the printed circuit board 2 through the notch 5, and the probe card 3 can be placed conveniently.

The working principle is as follows: when the probe card is used, the probe card 3 is firstly placed on the top of the printed circuit board 2, the probe pins 4 on the probe card 3 extend to the lower part of the printed circuit board 2 through the notches 5, the connecting cover 6 is placed on the top of the probe card 3 (the connecting cover 6 is utilized to avoid punching on the probe card 3, so that the integrity of the probe card 3 is ensured), then the probe leads connected on the probe card 3 extend to the outer side of the top shell 7 through the holes 8, the top shell 7 is slowly placed on the outer side of the connecting cover 6, then the rubber air bag 11 is contacted with the connecting cover 6 and the second limiting hole 14 on the printed circuit board 2, the top shell 7 is pressed downwards, the rubber air bag 11 is deformed under the action of pressure, so that the rubber air bag slowly extends to the inner part of the first limiting hole 13 through the second limiting hole 14, then the probe leads are pulled outwards, and the epoxy resin 10 is heated through the heating output end of the gun, the epoxy resin 10 is melted and blocked at the position of the hole 8, so that the probe lead is fixed.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A probe card base comprising a base body (1), characterized in that: the bottom of the base main body (1) is provided with a printed circuit board (2), the middle position of the top of the printed circuit board (2) is provided with a probe card (3), a plurality of groups of probe pins (4) penetrating to the lower part of the printed circuit board (2) are uniformly arranged at the bottom of the probe card (3), the top of the probe card (3) is sleeved with a connecting cover (6), the top of the connecting cover (6) is provided with a top shell (7), a plurality of groups of holes (8) are uniformly arranged on the two sides of the top shell (7), a plurality of groups of rubber air bags (11) are uniformly arranged at the bottom of the top shell (7), the four corners of the top of the printed circuit board (2) and the connecting cover (6) are provided with first limiting holes (13), the top of the first limit hole (13) is provided with a second limit hole (14), the top of the printed circuit board (2) is uniformly provided with a plurality of groups of terminals (12).

2. The probe card base of claim 1, wherein: the bottom of rubber gasbag (11) is the arc structure, and the top of rubber gasbag (11) is parallel structure, the top of rubber gasbag (11) all is provided with the supporting shoe, and rubber gasbag (11) all through the bottom fixed connection of supporting shoe and connecting cover (6).

3. The probe card base of claim 1, wherein: one side of the hole (8) far away from the top shell (7) is provided with epoxy resin (10), and the epoxy resin (10) is of an annular structure.

4. The probe card base of claim 1, wherein: the diameter of the first limiting hole (13) is twice that of the second limiting hole (14).

5. The probe card base of claim 1, wherein: the top shell (7) is detachably connected with the connecting cover (6) and the printed circuit board (2) through the mutual matching of the rubber air bag (11), the first limiting hole (13) and the second limiting hole (14).

6. The probe card base of claim 1, wherein: the top of the top shell (7) is provided with a clamping hole (9).

7. The probe card base of claim 1, wherein: the inner side of the printed circuit board (2) is provided with a notch (5), and the probe pin (4) penetrates through the notch (5) to the lower part of the printed circuit board (2).