Probe card firing pin protection mechanism

Abstract

The utility model relates to the technical field of probe cards, in particular to a probe card firing pin protection mechanism, which comprises a probe card, the outer wall of the probe card is provided with a protection mechanism, the protection mechanism comprises a protection cover, a connecting arm, a guide block, a spring I, a positioning block and a positioning groove, and the outer wall of the positioning block is provided with a reinforcing mechanism. By arranging the strengthening mechanism and the protection mechanism, when the device is impacted, air in a hollow air bag is extruded into a hollow connecting strip, then a cylindrical strip is extruded, the cylindrical strip drives a transmission rod and a positioning piece, the positioning piece is connected with a second through groove in an inserted mode, and a guide block and a positioning block are relatively locked; at the moment, the positioning block cannot slide relative to the guide block, so that the positioning block cannot be embedded and clamped with the positioning groove, and the protection mechanism is prevented from falling off due to falling impact, so that the protection mechanism is prevented from falling off or losing efficacy when falling off, the protection effect is further enhanced, and the probe is prevented from being clamped and collided.

Description

TECHNICAL FIELD

[0001] The utility model relates to probe card technical field, concretely is a probe card striking pin protection mechanism. BACKGROUND

[0002] The probe card is a kind of key equipment for integrated circuit test, is usually used to carry out electrical test to chip or packaged IC in semiconductor manufacturing process. It carries out signal transmission and measurement with the contact point of the measured chip by probe, and is usually used to test the functionality and performance of chip in manufacturing process.

[0003] The probe installed on the probe card is usually made of high-conductivity material (such as gold, platinum, tungsten), and the volume is very small (diameter is several hundred microns or less), so its structure is relatively fragile. These probes need to be accurately connected to the pads on the chip for electrical connection, so any external impact, vibration or improper operation may cause the probe to bend, break or contact poorly. In order to protect the probe from possible damage during transportation, storage or idle process, the probe card is usually equipped with a protective cover or protective device.

[0004] The protective cover is one of the most common protective measures, usually covering the probe area to avoid exposure of the probe to the external environment. These protective covers are usually made of impact-resistant, pressure-resistant materials (such as plastic, metal or elastic polymer), designed to prevent external objects from colliding, vibrating or pressing the probe. However, the protective cover often fails to effectively protect the probe when the probe card falls, mainly because the protective cover is usually fixed on the probe card by adhesive material (such as tape, adhesive material, etc.) or simple buckle, although this design is convenient to install and remove, but when falling, the adhesive material is easy to lose adhesion, and the protective cover may fall off or shift, unable to protect the probe card at the critical moment. Therefore, the protective cover may lose its protective effect when facing strong impact, causing the probe card to hit the needle damage. SUMMARY

[0005] The utility model aims at providing a kind of probe card striking pin protection mechanism, the probe card striking pin protection mechanism, solve the problem that protective cover often fails to effectively protect probe when probe card falls.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] The utility model provides a probe card punch pin protection mechanism, including probe card, the outer wall of probe card is provided with the protection mechanism, the protection mechanism includes: protection cover, connecting arm, guide block, spring one, positioning block, positioning groove, the outer wall of positioning block is provided with reinforcing mechanism, the reinforcing mechanism includes: outer connecting strip, the outer connecting strip fixedly connected on the outer wall of positioning block, both sides of outer connecting strip are fixedly connected with hollow air bag, the outer wall of hollow air bag is fixedly connected with hollow connecting strip, one end of spring no.

[0008] Preferably, the outer wall of the protection cover is fixedly connected with the connecting arm, the side away from the protection cover of the connecting arm is fixedly connected with the guide block, the side away from the protection cover of the guide block is fixedly connected with one end of the spring one, the other end of the spring one is fixedly connected with the positioning block, and the outer wall of the probe card is provided with the positioning groove.

[0009] Preferably, the positioning block is J-shaped, and the outer wall of the guide block is slidably connected with the inner wall of the positioning block.

[0010] Preferably, the outer wall of the hollow air bag is provided with a groove, and the groove of the hollow air bag is used for sleeving the corner of the probe card.

[0011] Preferably, the outer wall of the cylindrical strip is pistonically connected with the inner wall of the hollow connecting strip, and the inner wall of the hollow connecting strip is communicated with the inner wall of the hollow air bag.

[0012] Preferably, the outer wall of the transmission rod is slidably connected with the inner wall of the hollow connecting strip, the hollow air bag is provided with four, and the four hollow air bags are arranged in an array.

[0013] Preferably, the positioning member is composed of a cuboid and a cylinder, and part of the positioning member is slidably connected with the through groove one.

[0014] By the above technical scheme, the utility model provides a probe card punch pin protection mechanism. At least the following beneficial effects are possessed:

[0015] (1), the utility model discloses a reinforcing mechanism and protection mechanism are set up, when being impacted, the air in hollow air bag is extruded into hollow connecting strip, then extruding cylinder strip, so that cylinder strip drives transmission rod, positioning piece, so that positioning piece and through slot two plug -in, so that the guiding block is locked with the positioning block relatively, positioning block can not slide relative to guiding block at this moment, so that positioning block can not with positioning groove remove the embedded clamping, prevent because the impact of falling and lead to the protection mechanism to fall off, thereby ensure that the protection mechanism is not dropped or failure when falling, further strengthen the protection effect, avoid the probe card needle.

[0016] (2), the utility model discloses a reinforcing mechanism is set up, when probe card falls, the hollow air bag around probe card and ground impact, and hollow air bag can effectively absorb the impact force when falling through the air or elastic material contained in it. They serve as a buffer device, reducing the direct impact force of the ground on the probe card, thereby reducing the risk of probe card damage. Four hollow air bags are evenly distributed, which can ensure that the impact force is dispersed and absorbed in all directions.

[0017] (3), the utility model discloses protection mechanism and reinforcing mechanism cover probe card, so that the probe card cannot be smoothly installed without taking down protection mechanism and reinforcing mechanism, avoiding the needle caused by the operator forgetting to take down the protection device. BRIEF DESCRIPTION OF DRAWINGS

[0018] The drawings described herein are used to provide further understanding of the utility model and constitute a part of this application:

[0019] Figure 1 It is the whole structure schematic diagram of the utility model;

[0020] Figure 2 It is the structure schematic diagram of protection mechanism in the utility model;

[0021] Figure 3 It is the structure schematic diagram of positioning groove in the utility model; Figure 2

[0022] Figure 4 It is the structure schematic diagram of hollow connecting strip in the utility model;

[0023] Figure 5 It is the structure schematic diagram of outer connecting strip in the utility model;

[0024] Figure 6 It is the section structure schematic diagram of hollow connecting strip in the utility model;

[0025] Figure 7 It is the section structure schematic diagram of positioning block in the utility model.

[0026] ​In the figure: 1, probe card; 2, protection mechanism; 21, protective cover; 22, connecting arm; 23, guide block; 24, spring one; 25, positioning block; 26, positioning groove; 3, reinforcing mechanism; 31, outer connecting strip; 32, hollow air bag; 33, hollow connecting strip; 34, spring two; 35, cylindrical strip; 36, transmission rod; 37, positioning piece; 38, spring three; 39, through slot one; 310, through slot two. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0028] Please refer to Figures 1-7 The utility model provides a kind of technical scheme of probe card needle protection mechanism, including probe card 1, the outer wall of probe card 1 is provided with protection mechanism 2, protection mechanism 2 includes: protective cover 21, connecting arm 22, guide block 23, spring one 24, positioning block 25, positioning groove 26, the outer wall of positioning block 25 is provided with reinforcing mechanism 3, reinforcing mechanism 3 includes: outer connecting strip 31, outer connecting strip 31 is fixedly connected on the outer wall of positioning block 25, the both sides of outer connecting strip 31 are fixedly connected with hollow air bag 32, the outer wall of hollow air bag 32 is fixedly connected with hollow connecting strip 33, one end of spring two 34 is fixedly connected on the inner wall of hollow connecting strip 33, the other end of spring two 34 is fixedly connected with cylindrical strip 35, the outer wall of cylindrical strip 35 is fixedly connected with transmission rod 36, the outer wall of transmission rod 36 is fixedly connected with positioning piece 37, one end of spring three 38 is fixedly connected on the outer wall of positioning piece 37, the other end of spring three 38 is fixedly connected on the outer wall of positioning block 25, through slot one 39 is set up on the inner wall of positioning block 25, through slot two 310 is set up on the inner wall of guide block 23.

[0029] The outer wall of protective cover 21 is fixedly connected with connecting arm 22, the side of connecting arm 22 away from protective cover 21 is fixedly connected with guide block 23, one end of spring one 24 is fixedly connected with guide block 23 away from protective cover 21, the other end of spring one 24 is fixedly connected with positioning block 25, the outer wall of probe card 1 is set up with positioning groove 26.

[0030] The positioning block 25 is J-shaped, facilitates embedding with the positioning groove 26, positions the protection mechanism 2, ensures that the protective cover 21 covers the probe area through accurate positioning, prevents external impact from damaging the probe, improves the use safety of the probe card 1, the outer wall of the guide block 23 is slidably connected with the inner wall of the positioning block 25, when it is necessary to disassemble, the positioning block 25 is pulled to move away from the guide block 23, so that the spring 24 is stretched, at this time, the positioning block 25 and the positioning groove 26 are disengaged, so that the positioning block 25 can be removed at this time, and the entire protection mechanism 2 is removed, through the accurate embedding between the protective cover 21 and the positioning block 25 and the positioning groove 26, it is ensured that the protective cover 21 always stably covers the probe area of the probe card 1, and the damage of the probe caused by external impact, vibration or falling is effectively avoided. This can significantly improve the use safety of the probe card 1, and reduce the risk of needle collision. The outer wall of the hollow air bag 32 is provided with a groove, the groove of the hollow air bag 32 is used for sleeving the corner of the probe card 1, and the design of the hollow air bag 32 can play a buffering role when the probe card 1 falls or is subjected to external impact. The setting of the groove can help to disperse the impact force to the surrounding of the hollow air bag 32, reduce the possibility of directly impacting the probe card 1, thereby protecting the probe card 1 from being damaged. The outer wall of the cylindrical bar 35 is piston-connected with the inner wall of the hollow connecting bar 33, the inner wall of the hollow connecting bar 33 is communicated with the inner wall of the hollow air bag 32, when the hollow air bag 32 is impacted, the air in the hollow air bag 32 enters the inner wall of the hollow connecting bar 33 to extrude the cylindrical bar 35, the outer wall of the transmission rod 36 is slidably connected with the inner wall of the hollow connecting bar 33, the hollow air bag 32 is provided with four, the four hollow air bags 32 are arranged in an array, and the four hollow air bags 32 can provide uniform support and protection around the probe card 1 through the array arrangement. The array arrangement ensures that the probe card 1 is balanced in different directions, thereby enhancing the overall protection effect, avoiding damage caused by excessive impact or pressure in a local area, and the positioning piece 37 is composed of a cuboid and a cylinder, and part of the positioning piece 37 is slidably connected with the groove I 39.

[0031] The probe card needle protection mechanism can be taken out by pulling the positioning blocks 25 and the positioning grooves 26 to end embedding, so that the probe card 1 is convenient to use.

[0032] When the probe card 1 falls, the hollow air bags 32 around the probe card 1 are impacted with the ground, and the hollow air bags 32 can effectively absorb the impact force when falling through the air or elastic material contained therein. They serve as a buffer device, reducing the direct impact force of the ground on the probe card 1, thereby reducing the risk of probe card damage. The four hollow air bags are uniformly distributed, which can ensure that the impact force is dispersed and absorbed in all directions.

[0033] And, the air in the hollow air bag 32 is extruded into the hollow connecting strip 33, and then the extrusion cylindrical strip 35 is extruded, so that the cylindrical strip 35 drives the transmission rod 36 and the positioning piece 37, so that the positioning piece 37 is inserted through the groove two 310, so that the guide block 23 and the positioning block 25 are relatively locked, at this time the positioning block 25 cannot slide relative to the guide block 23, so that the positioning block 25 cannot be disengaged from the positioning groove 26, preventing the protective mechanism 2 from falling off due to the impact of falling, thereby ensuring that the protective mechanism 2 is not dropped or fails when falling, further strengthening the protection effect, avoiding the probe card 1 from being hit.

[0034] At the same time, the protective mechanism 2 and the reinforcing mechanism 3 wrap the probe card 1, so that the probe card 1 cannot be successfully installed without taking down the protective mechanism 2 and the reinforcing mechanism 3, avoiding the operator from forgetting to take down the protective device and causing the probe card 1 to be hit.

[0035] It should be noted that in this paper, the relationship terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the term "includes", "contains" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0036] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A pogo pin protection mechanism for a probe card (1), characterized in that: The outer wall of the probe card (1) is provided with a protection mechanism (2), the protection mechanism (2) comprises: a protection cover (21), a connecting arm (22), a guide block (23), a spring (24), a positioning block (25), a positioning groove (26), the outer wall of the positioning block (25) is provided with a reinforcing mechanism (3), the reinforcing mechanism (3) comprises: The outer connecting strip (31) is fixedly connected on the outer wall of the positioning block (25), the two sides of the outer connecting strip (31) are fixedly connected with the hollow air bag (32), the outer wall of the hollow air bag (32) is fixedly connected with the hollow connecting strip (33), one end of the spring (34) is fixedly connected on the inner wall of the hollow connecting strip (33), the other end of the spring (34) is fixedly connected with the cylindrical strip (35), the outer wall of the cylindrical strip (35) is fixedly connected with the transmission rod (36), the outer wall of the transmission rod (36) is fixedly connected with the positioning piece (37), one end of the spring (38) is fixedly connected on the outer wall of the positioning piece (37), the other end of the spring (38) is fixedly connected on the outer wall of the positioning block (25), the through groove (39) is formed on the inner wall of the positioning block (25), the through groove (310) is formed on the inner wall of the guide block (23).

2. The probe card contact pin protection mechanism of claim 1, wherein: The outer wall of the protection cover (21) is fixedly connected with the connecting arm (22), one side of the connecting arm (22) away from the protection cover (21) is fixedly connected with the guide block (23), one end of the spring (24) away from the protection cover (21) is fixedly connected with the guide block (23), the other end of the spring (24) is fixedly connected with the positioning block (25), the outer wall of the probe card (1) is provided with the positioning groove (26).

3. The probe card contact pin protection mechanism of claim 2, wherein: The positioning block (25) is J-shaped, and the outer wall of the guide block (23) is slidably connected with the inner wall of the positioning block (25).

4. The probe card contact pin protection mechanism of claim 1, wherein: The outer wall of the hollow air bag (32) is provided with a groove, and the groove of the hollow air bag (32) is used for sleeving the corner of the probe card (1).

5. The probe card contact pin protection mechanism of claim 1, wherein: The outer wall of the cylindrical strip (35) is piston-connected with the inner wall of the hollow connecting strip (33), and the inner wall of the hollow connecting strip (33) is in communication with the inner wall of the hollow air bag (32).

6. The probe card contact pin protection mechanism of claim 1, wherein: The outer wall of the transmission rod (36) is slidably connected with the inner wall of the hollow connecting strip (33), and the hollow air bag (32) is provided with four, and the four hollow air bags (32) are arranged in an array.

7. The probe card contact tip protection mechanism of claim 1, wherein: The positioning piece (37) is composed of a cuboid and a cylinder, and part of the positioning piece (37) is slidably connected with the through groove (39).

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