Probe card convenient for replacing probe

Abstract

The utility model relates to the technical field of probe cards, and discloses a probe card convenient for replacing a probe, which comprises a card seat, a connecting seat is arranged on a bearing on the top surface of the card seat, a positioning mechanism is arranged above the connecting seat, a connecting mechanism is arranged in the positioning mechanism, the positioning mechanism comprises a clamping part and a positioning part, and the clamping part and the positioning part are arranged on the clamping seat. The connecting mechanism comprises a connecting part and an adjusting part, the clamping part comprises a positioning plate, a clamping needle is fixedly arranged on the top surface of the positioning plate, the outer side surface of the positioning plate is sleeved with a placement seat, the positioning plate is clamped with the placement seat, four positioning rods are fixedly arranged on the top surface of the clamping seat, and the clamping needle is fixedly connected with the clamping seat. And a positioning hole is formed in the top surface of the placement seat. Through clamping of the positioning plate and the clamping needle, preliminary installation of the positioning plate and the clamping needle is completed, the upper end of the positioning rod enters the positioning hole, positioning of the positioning plate is completed, and the situation that the clamping needle inclines after being installed, and normal use of the clamping needle may be affected by inclination, and even damage is caused is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to probe card technical field, concretely is a kind of probe card of probe replacement. BACKGROUND

[0002] As the interface between tester and chip under test, probe card is mainly used in wafer testing process, and it is responsible for the preliminary measurement of electrical properties before chip packaging, and screening of potential defective chips, so as to facilitate subsequent packaging engineering.

[0003] When replacing the probe on the probe card, if the probe cannot be placed accurately in the predetermined position during installation, it may cause inconsistent or inclined probe height. This deviation in position will directly affect the normal operation of the probe, resulting in its inability to fully function.

[0004] Therefore, a probe card for easy replacement of probes is proposed. SUMMARY

[0005] The utility model aims at providing a kind of probe card of probe replacement, solve the technical problem that probe appears in installation process and is inclined to affect normal use, reach the purpose of positioning guarantee accurate installation to probe in installation process.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of probe card of probe replacement, including card seat, the top surface bearing of card seat is provided with connecting seat, the upper portion of connecting seat is provided with positioning mechanism, the inside of positioning mechanism is provided with connecting mechanism;

[0007] The positioning mechanism includes clamping part and positioning part.

[0008] The connecting mechanism includes connecting part and adjusting part.

[0009] Preferably, the clamping part includes a positioning plate, a card needle is fixedly arranged on the top surface of the positioning plate, a placement seat is sleeved on the outer side surface of the positioning plate, and the positioning plate is clamped with the placement seat.

[0010] Preferably, a positioning rod is fixedly arranged on the top surface of the card seat, four positioning rods are evenly arranged, a positioning hole is formed on the top surface of the placement seat, and the upper end of the positioning rod is located in the positioning hole and is slidably connected with the inner wall of the positioning hole.

[0011] Preferably, the positioning part comprises a connecting plate fixedly connected with the positioning plate, a positioning block is fixedly arranged on the outer side of the connecting plate, three positioning blocks are uniformly arranged, a sliding groove is opened on the inner wall of the connecting seat, a positioning groove is opened on the side of the sliding groove, the sliding groove and the positioning groove are in communication with each other, and the positioning block is in sliding connection with the inner walls of the sliding groove and the positioning groove.

[0012] Preferably, the connecting part comprises a pressing plate, the pressing plate is located in the interior of the connecting seat, a pressing block is fixedly arranged on the side of the pressing plate, the pressing block is located in the interior of the sliding groove and is in sliding connection with the inner wall of the sliding groove, and a connecting rod is fixedly arranged on the bottom surface of the pressing block.

[0013] Preferably, the lower end of the connecting rod penetrates through the sliding groove and is in sliding connection with the inner wall of the sliding groove, a spring is sleeved on the outer side of the connecting rod, and the two ends of the spring are in sliding connection with the pressing block and the inner wall of the sliding groove respectively.

[0014] Preferably, the adjusting part comprises a pressing seat, the upper end of the pressing seat is in bearing connection with the pressing plate, a connecting groove is opened on the side of the connecting seat, and the left and right ends of the pressing seat penetrate through the connecting grooves close to the connecting grooves and are in sliding connection with the inner walls of the connecting grooves close to the connecting grooves.

[0015] Compared with the prior art, the probe card has the advantages that,

[0016] 1) The positioning plate is clamped with the clamping needle, the preliminary installation of the positioning plate and the clamping needle is completed, the upper end of the positioning rod enters the positioning hole, the positioning of the positioning plate is completed, and the clamping needle is prevented from being inclined after installation.

[0017] 2) The up-down movement of the pressing block is controlled by moving the pressing seat, the positioning slot blocked by the pressing block can be flexibly exposed or hidden, after the pressing block is moved away, the positioning block can be smoothly put into the positioning slot from the sliding groove by rotating the placing seat, the stable fixation of the connecting plate, the positioning block and the positioning plate is realized, and the loosening or displacement of the connecting plate, the positioning block and the positioning plate in the use process is prevented. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic view of the utility model structure;

[0019] Figure 2 It is a three-dimensional view of the positioning mechanism of the utility model;

[0020] Figure 3 It is a partial three-dimensional view of the positioning mechanism of the utility model;

[0021] Figure 4 It is a three-dimensional view of the connecting mechanism of the utility model.

[0022] In the figure: 1 card seat, 2 connecting seat, 3 positioning mechanism, 31 positioning plate, 32 card needle, 33 placing seat, 34 positioning rod, 35 connecting plate, 36 positioning block, 4 connecting mechanism, 41 pressing plate, 42 pressing block, 43 connecting rod, 44 spring, 45 pressing seat. DETAILED DESCRIPTION

[0023] 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. EMBODIMENT

[0024] Based on the problem that the existing probe is inclined during installation and affects normal use, please refer to Figures 1-4 The utility model provides a technical scheme: a probe card convenient for replacing probe, including card seat 1, the top surface bearing of card seat 1 is provided with connecting seat 2, the top of connecting seat 2 is provided with positioning mechanism 3, and connecting mechanism 4 is arranged in positioning mechanism 3.

[0025] Positioning mechanism 3 includes clamping part and positioning part.

[0026] Connecting mechanism 4 includes connecting part and adjusting part.

[0027] Clamping part includes positioning plate 31, the top surface of positioning plate 31 is fixedly provided with card needle 32, the outer side surface of positioning plate 31 is sleeved with placing seat 33, and positioning plate 31 is clamped with placing seat 33.

[0028] The top surface of card seat 1 is fixedly provided with positioning rod 34, the top surface of placing seat 33 is provided with positioning hole, and the upper end of positioning rod 34 is located in the positioning hole and is slidably connected with the inner wall of the positioning hole.

[0029] Positioning part includes connecting plate 35, connecting plate 35 is fixedly connected with positioning plate 31, the outer side surface of connecting plate 35 is fixedly provided with positioning block 36, the outer side surface of connecting plate 35 is fixedly provided with positioning block 36, the inner wall of connecting seat 2 is provided with sliding groove, the side surface of sliding groove is provided with positioning groove, sliding groove and positioning groove are communicated with each other, and positioning block 36 is slidably connected with the inner wall of sliding groove and the inner wall of positioning groove.

[0030] Further, the positioning plate 31 and the card needle 32 are clamped first in the embodiment, the preliminary installation of the positioning plate 31 and the card needle 32 is completed, then the positioning hole on the positioning plate 31 is aligned with the positioning rod 34, the upper end of the positioning rod 34 is entered into the positioning hole, the positioning block 36 is entered into the sliding groove at the same time, and the positioning of the positioning plate 31 is completed.

[0031] Further, the embodiment is positioned by the positioning plate 31 and the clamping needle 32, the preliminary installation of the positioning plate 31 and the clamping needle 32 is completed, the upper end of the positioning rod 34 enters the positioning hole, the positioning of the positioning plate 31 is completed, the inclination of the clamping needle 32 after installation is avoided, the normal use of the clamping needle 32 is affected, and even damage is caused; Embodiment

[0032] Please refer to Figures 1-4 And on the basis of embodiment one, further obtained: the connecting part includes a pressing plate 41, the pressing plate 41 is located inside the connecting seat 2, the pressing plate 41 is fixedly provided with a pressing block 42 on the side surface, the pressing block 42 is located inside the sliding groove and is in sliding connection with the inner wall of the sliding groove, and the bottom surface of the pressing block 42 is fixedly provided with a connecting rod 43.

[0033] The lower end of the connecting rod 43 penetrates through the sliding groove and is in sliding connection with the inner wall of the sliding groove, the outer side surface of the connecting rod 43 is sleeved with a spring 44, and the two ends of the spring 44 are in sliding connection with the pressing block 42 and the inner wall of the sliding groove respectively.

[0034] The adjusting part includes a pressing seat 45, the upper end of the pressing seat 45 is in bearing connection with the pressing plate 41, the connecting seat 2 is provided with a connecting groove on the side surface, and the left and right two ends of the pressing seat 45 penetrate through the connecting groove and are in sliding connection with the inner wall of the connecting groove.

[0035] Further, the pressing seat 45 of the embodiment is moved, the pressing plate 41 is driven to move downwards together with the pressing block 42, the positioning slot opening blocked by the pressing block 42 is exposed, then the placement seat 33 is rotated, the positioning block 36 enters the positioning slot from the sliding groove, then the pressing seat 45 is sent away, under the action of the spring 44, the pressing block 42 returns to the original position and blocks the positioning slot opening again, the fixing of the connecting plate 35, the positioning block 36 and the positioning plate 31 is completed;

[0036] Further, the embodiment moves the pressing seat 45 to control the up-down movement of the pressing block 42, so that the positioning slot opening blocked by the pressing block 42 can be exposed or hidden flexibly, after the pressing block 42 is moved away, the placement seat 33 can be rotated, the positioning block 36 smoothly enters the positioning slot from the sliding groove, the stable fixing of the connecting plate 35, the positioning block 36 and the positioning plate 31 is realized, and they are also prevented from loosening or displacement in the use process.

[0037] In use, first, the positioning plate 31 is clamped with the clamping needle 32, the preliminary installation of the positioning plate 31 and the clamping needle 32 is completed, then the positioning hole on the positioning plate 31 is aligned with the positioning rod 34, the upper end of the positioning rod 34 enters the positioning hole, and the positioning block 36 enters the sliding groove, the positioning of the positioning plate 31 is completed, the clamping needle 32 is prevented from being inclined after installation, the use of the clamping needle 32 is affected, the pressing seat 45 is moved, the pressing plate 41 is driven by the pressing block 42 to move downwards, the positioning slot opening blocked by the pressing block 42 is exposed, then the placing seat 33 is rotated, the positioning block 36 enters the positioning slot from the sliding groove, then the pressing seat 45 is sent away, under the action of the spring 44, the pressing block 42 returns to the original position, the positioning slot opening is blocked again, the fixing of the connecting plate 35, the positioning block 36 and the positioning plate 31 is completed.

[0038] Although the embodiments of the present application have been shown and described, it is to be understood that for the purpose of the present application, the embodiments can be changed, modified, replaced and varied in many ways without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A probe card for facilitating replacement of probes, comprising a card holder (1), characterized in that: The top surface bearing of the card seat (1) is provided with a connecting seat (2), the upper part of the connecting seat (2) is provided with a positioning mechanism (3), and the inside of the positioning mechanism (3) is provided with a connecting mechanism (4); The positioning mechanism (3) comprises a clamping part and a positioning part; The connecting mechanism (4) comprises a connecting part and an adjusting part.

2. The probe card of claim 1, wherein: The clamping part comprises a positioning plate (31), the top surface of the positioning plate (31) is fixedly provided with a clamping pin (32), the outer side surface of the positioning plate (31) is sleeved with a placing seat (33), and the positioning plate (31) is clamped with the placing seat (33).

3. The probe card of claim 2, wherein: The top surface of the card seat (1) is fixedly provided with a positioning rod (34), the positioning rod (34) is uniformly provided with four, the top surface of the placing seat (33) is provided with a positioning hole, and the upper end of the positioning rod (34) is located in the positioning hole and is in sliding connection with the inner wall of the positioning hole.

4. The probe card of claim 3, wherein: The positioning part comprises a connecting plate (35), the connecting plate (35) is fixedly connected with the positioning plate (31), the outer side surface of the connecting plate (35) is fixedly provided with a positioning block (36), the positioning block (36) is uniformly provided with three, the inner wall of the connecting seat (2) is provided with a sliding groove, the side surface of the sliding groove is provided with a positioning groove, the sliding groove and the positioning groove are in communication with each other, and the positioning block (36) is in sliding connection with the inner wall of the sliding groove and the inner wall of the positioning groove.

5. The probe card of claim 1, wherein: The connecting part comprises a pressing plate (41), the pressing plate (41) is located in the inside of the connecting seat (2), the side surface of the pressing plate (41) is fixedly provided with a pressing block (42), the pressing block (42) is located in the inside of the sliding groove and is in sliding connection with the inner wall of the sliding groove, and the bottom surface of the pressing block (42) is fixedly provided with a connecting rod (43).

6. The probe card of claim 5, wherein: The lower end of the connecting rod (43) penetrates through the sliding groove and is in sliding connection with the inner wall of the sliding groove, the outer side surface of the connecting rod (43) is sleeved with a spring (44), and the two ends of the spring (44) are in sliding connection with the pressing block (42) and the inner wall of the sliding groove respectively.

7. The probe card of claim 6, wherein: The adjusting part comprises a pressing seat (45), the upper end of the pressing seat (45) is in bearing connection with the pressing plate (41), the side surface of the connecting seat (2) is provided with a connecting groove, and the left and right ends of the pressing seat (45) penetrate through the connecting grooves close to the connecting grooves and are in sliding connection with the inner walls of the connecting grooves close to the connecting grooves.

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