Vertical probe card fixing device
By setting up an extension plate on the movable clamp, the problem that the probe head cannot pass through the groove when clamping the substrates of different sizes is solved, and the stable fixation of the substrate and light transmission is achieved, avoiding the cost and time of additional grooves.
Patent Information
- Application Number
- CN202422144932.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-02
- Publication Date
- 2025-08-12
- Estimated Expiration
- 2034-09-02
AI Technical Summary
When existing vertical vertical probe card fixing devices clamp substrates of different sizes, the probe head position on the substrate cannot pass through the slots on the clamp, resulting in additional slots requiring additional slots, which increases cost and time.
A vertical vertical probe card fixing device is designed. By setting multiple extension plates on the movable clamping plate, the clamping area is increased, and the extension plate is plugged on the movable clamping plate to adapt to substrates of different sizes, ensuring that the projector light can illuminate the center of the substrate and avoid re-opening of grooves.
When clamping substrates of different sizes, the probe head position on the substrate can be fully viewed through slotting, avoiding the need for additional slotting and reducing cost and time consumption.
Smart Images
Figure CN223217529U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field related to clamps, and in particular relates to a vertical stand probe card fixing device. Background Art
[0002] A vertical probe card fixture is a tool used to support and secure probe cards, commonly used in semiconductor testing, electronic component testing, and other precision measurement applications. This fixture is designed to ensure the probe card remains stable during testing and prevents displacement or deviation during high-precision measurements. However, when clamping substrates of varying sizes, the probe card head on the substrate cannot be fully secured within the slots in the clamping plate, necessitating the creation of corresponding slots in the clamping plate. Utility Model Content
[0003] The purpose of the present invention is to provide a vertical probe card fixing device to solve the problem in the background art that when clamping substrates of different sizes, the fixed position of the probe card head on the substrate cannot completely pass through the slot on the clamping plate.
[0004] To achieve the above-mentioned object, the present invention provides the following technical solutions: a vertical stand probe card fixing device, comprising a base and a limit plate mounted on the upper end of the base;
[0005] A slot running through from front to back is provided inside the front outer wall of the limiting plate;
[0006] A movable clamping plate is provided on the front outer wall of the limiting plate near the lower side to clamp the substrate of the probe card;
[0007] A plurality of extension plates are arranged inside the movable splint to increase the clamping area of the movable splint.
[0008] Preferably, an upwardly opening slot is provided inside the outer wall of the upper end of the movable splint near the rear side, and a fixing plate is provided inside each of the plurality of extension plates to be inserted into the slot to limit the position of the extension plate.
[0009] Preferably, storage slots are provided inside the plurality of extension plates to limit the position of the fixed plate, and limiting holes are provided inside the upper and lower outer walls of the plurality of extension plates to allow the fixed plate to be inserted and extended.
[0010] Preferably, the upper outer walls of the plurality of fixed plates are fixedly connected with baffles to limit the maximum distance the fixed plates extend, and the front outer wall of the movable splint is provided with a through opening for the user to take the extension plate for use.
[0011] Preferably, the lower end outer walls of the plurality of fixed plates are fixedly connected with auxiliary limit blocks, and the inner parts of the upper end outer walls of the plurality of baffles and the lower end inner walls of the slots are provided with auxiliary fixing grooves.
[0012] Preferably, upward-opening limit grooves are provided inside the upper outer wall of the base and near the front and rear sides respectively, the lower outer wall of the limit plate is fixedly connected to a fixed block that passes downward through the limit groove, and a positioning shaft is provided inside the movable splint.
[0013] Preferably, the rear end outer wall of the limiting plate is provided with an adjusting screw fixedly connected to the positioning shaft, and the interior of the limiting plate is provided with an adjusting hole to cooperate with the adjusting screw to adjust the position of the movable splint.
[0014] Preferably, the fixed block and the base are connected by external fixing screws to limit the position of the limit plate, and the movable splint moves forward and backward under the control of the adjusting screws.
[0015] Compared with the prior art, the present invention provides a vertical probe card fixing device with the following beneficial effects:
[0016] By installing the extension plate, when the movable clamp clamps the substrate, if the position of the corresponding probe card head on the substrate cannot be fully viewed through the slot, the extension plate can be plugged into the movable clamp, and then the substrate is clamped by the extension plate to improve the fixed position of the substrate, so that the position of the corresponding probe card head on the substrate can be fully viewed through the slot, avoiding the need to open the slot again, which increases costs and time, so as to adapt to substrates of different sizes and fix the substrates. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a schematic structural diagram of a vertical probe card fixing device of the present utility model.
[0018] Figure 2 It is a schematic diagram of the partial structure of the side cross-section of the limiting plate area of the present invention.
[0019] Figure 3 This is a schematic diagram of the structure of the movable splint area of the utility model.
[0020] Figure 4 It is a schematic diagram of the partial structure of the side cross-section of the movable splint area of the utility model.
[0021] In the figure: 1. Limiting plate; 2. Slot; 3. Limiting slot; 4. Movable splint; 5. Base; 6. Positioning shaft; 7. Adjusting screw; 8. Fixing block; 9. Adjusting hole; 10. Slot; 11. Extension plate; 12. Through port; 13. Fixing plate; 14. Limiting hole; 15. Baffle; 16. Storage slot. DETAILED DESCRIPTION
[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0023] The utility model provides Figure 1-4 A vertical stand probe card fixing device shown includes a base 5 and a limiting plate 1 installed on the upper end of the base 5;
[0024] A slot 2 is provided on the front outer wall of the limiting plate 1, which is through-through from front to back.
[0025] The front end outer wall of the limiting plate 1 is provided with a movable clamping plate 4 near the lower side to clamp the substrate of the probe card. When the probe card head and the substrate are assembled and fixed, the staff first faces the projector, then moves the substrate between the limiting plate 1 and the movable clamping plate 4, and limits the position of the substrate by the movable clamping plate 4. Then, the projector is turned on, and the projector emits light to project on the substrate, and the picture is displayed at the imaging position on one side of the projector for coordinate marking. At this time, the staff presses the probe card head on the substrate with his left hand, and uses the other hand to apply torque on the other side, which is the slot 2 side, and prepares to tighten the screws synchronously. When the hand holding the probe card head aligns the needle tip coordinates in the symmetrical position with the crosshairs, the screws can be locked synchronously to fix the probe card head on the substrate. Then, the movable clamping plate 4 can be released to remove the substrate and proceed to the next substrate.
[0026] A plurality of extension plates 11 are provided inside the movable clamping plate 4 to increase the clamping area of the movable clamping plate 4. When clamping substrates of different sizes, the extension plates 11 can be clamped on the movable clamping plate 4 to increase the clamping area of the movable clamping plate 4, thereby clamping substrates of different sizes, so that the light emitted by the projector can be irradiated at the center position of substrates of different sizes through the slot 2, avoiding the situation of opening a limit plate 1 adapted to substrates of different sizes.
[0027] like Figure 3 and Figure 4 As shown, an upwardly opening slot 10 is provided inside the outer wall of the upper end of the movable splint 4 near the rear side, and a fixing plate 13 is provided inside each of the plurality of extension plates 11 to be inserted into the slot 10 to limit the position of the extension plate 11 .
[0028] When limiting the position of the extension plate 11 , the extension plate 11 can be fixed by inserting the fixing plate 13 inside the extension plate 11 into the card slot 10 .
[0029] like Figure 3 and Figure 4As shown, storage slots 16 are provided inside the multiple extension plates 11 to limit the position of the fixed plate 13, and upper and lower outer walls of the multiple extension plates 11 are provided with upper and lower through-holes 14 for the fixed plate 13 to be inserted and extended, and the upper end outer walls of the multiple fixed plates 13 are fixedly connected with baffles 15 to limit the maximum distance the fixed plate 13 can extend, and the front end outer wall of the movable splint 4 is provided with a through opening 12 for the user to take the extension plate 11 for use.
[0030] When fixing according to substrates of different sizes, multiple extension plates 11 can be stacked and fixed, and the fixed plate 13 inside the upper extension plate 11 can be inserted into the lower extension plate 11 through the limiting hole 14, thereby completing the stacking between multiple extension plates 11. During the sliding process of the fixed plate 13, the position of the fixed plate 13 can be limited by the baffle 15 to prevent the fixed plate 13 from sliding out of the extension plate 11. When multiple extension plates 11 are stored in the movable splint 4, the fixed plate 13 is stored in the storage groove 16, so that the multiple extension plates 11 and the movable splint 4 are on the same horizontal plane. When taking out the extension plate 11, the extension plate 11 can be taken out through the side of the through hole 12. After the extension plate 11 is taken out, the fixed plate 13 automatically slides out.
[0031] like Figure 4 As shown, the lower outer walls of the plurality of fixing plates 13 are fixedly connected with auxiliary limiting blocks, and the inner parts of the upper outer walls of the plurality of baffles 15 and the lower inner walls of the slots 10 are provided with auxiliary fixing grooves.
[0032] When multiple extension plates 11 are stacked, auxiliary limiting blocks can be inserted into the auxiliary fixing grooves to perform secondary position restriction, thereby increasing stability during stacking.
[0033] like Figure 1 and Figure 2 As shown, upward-opening limit grooves 3 are provided inside the upper outer wall of the base 5 and near the front and rear sides respectively, the lower outer wall of the limit plate 1 is fixedly connected with a fixed block 8 that penetrates downward into the limit groove 3, the interior of the movable splint 4 is provided with a positioning shaft 6, the rear end outer wall of the limit plate 1 is provided with an adjusting screw 7 that is fixedly connected to the positioning shaft 6, and the interior of the limit plate 1 is provided with an adjusting hole 9 to cooperate with the adjusting screw 7 to adjust the position of the movable splint 4.
[0034] The outer wall of the lower end of the limiting plate 1 is fixedly connected with a fixed block 8 that passes downward through the limiting groove 3 to limit the position of the limiting plate 1. When the substrate is clamped by the movable clamping plate 4 and the limiting plate 1, first rotate the adjusting screw 7 counterclockwise. At this time, the adjusting screw 7 drives the positioning shaft 6 to rotate and rotates inside the adjusting hole 9, driving the movable clamping plate 4 to move forward. At this time, the substrate can be placed between the limiting plate 1 and the movable clamping plate 4, and then the adjusting screw 7 is rotated clockwise to drive the movable clamping plate 4 to move backward to clamp the substrate.
[0035] like Figure 1 and Figure 2 As shown, the fixed block 8 and the base 5 are connected by external fixing screws to limit the position of the limit plate 1, and the movable splint 4 moves forward and backward under the control of the adjusting screw 7.
[0036] By using fixing screws, the limiting plate 1 can be fixed on the base 5 to limit the position, which is convenient for subsequent clamping of the substrate.
[0037] The working principle of this embodiment is as follows: when assembling and fixing the probe card and the substrate, the worker first faces the projector, then moves the substrate between the limiting plate 1 and the movable clamping plate 4, and limits the position of the substrate by the movable clamping plate 4. Then, the projector is turned on, and the projector emits light to project on the substrate, and the image is displayed at the imaging position on one side of the projector for coordinate marking. At this time, the worker presses the probe card on the substrate with his left hand, and uses the other hand to apply torque to the other side, which is the slot 2 side, and prepares to tighten the screws simultaneously. When the hand pressing the probe card aligns the needle tip coordinates in the symmetrical position with the crosshairs, the screws can be tightened synchronously to fix the probe card on the substrate. Then, the movable clamping plate 4 is released to remove the substrate and proceed to the next substrate. When clamping substrates of different sizes, the extension plate 11 can be clamped on the movable clamping plate 4 to increase the clamping area of the movable clamping plate 4, thereby clamping substrates of different sizes, so that the light emitted by the projector can illuminate the center position of substrates of different sizes through the slot 2, avoiding the need to open a limiting plate 1 adapted to substrates of different sizes.
[0038] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. A vertical probe card fixing device, comprising a base (5) and a limiting plate (1) mounted on the upper end of the base (5); A slot (2) is provided inside the front end outer wall of the limiting plate (1) and runs through the front and back; A movable clamping plate (4) is provided on the front end outer wall of the limiting plate (1) near the lower side to clamp the substrate of the probe card; Its characteristics are: A plurality of extension plates (11) are provided inside the movable splint (4) to increase the clamping area of the movable splint (4).
2. The vertical probe card fixing device according to claim 1, wherein: An upwardly opening slot (10) is provided inside the outer wall of the upper end of the movable splint (4) near the rear side, and a fixing plate (13) is provided inside each of the plurality of extension plates (11) to be inserted into the slot (10) to limit the position of the extension plate (11).
3. The vertical probe card fixing device according to claim 1, wherein: The interiors of the plurality of extension plates (11) are provided with storage slots (16) to limit the position of the fixed plate (13), and the interiors of the upper and lower outer walls of the plurality of extension plates (11) are provided with vertically penetrating limiting holes (14) to allow the fixed plate (13) to be inserted and extended.
4. The vertical probe card fixing device according to claim 2, wherein: The upper outer walls of the plurality of fixed plates (13) are all fixedly connected with baffles (15) to limit the maximum distance that the fixed plates (13) can extend. The front outer wall of the movable splint (4) is provided with a through opening (12) for a user to take the extension plate (11) for use.
5. The vertical probe card fixing device according to claim 4, characterized in that: The lower outer walls of the plurality of fixed plates (13) are all fixedly connected with auxiliary limit blocks, and the inner parts of the upper outer walls of the plurality of baffles (15) and the lower inner walls of the clamping slots (10) are all provided with auxiliary fixing grooves.
6. The vertical probe card fixing device according to claim 1, wherein: The upper outer wall of the base (5) is provided with upwardly opening limit grooves (3) close to the front and rear sides respectively; the lower outer wall of the limit plate (1) is fixedly connected with a fixed block (8) extending downward through the limit groove (3); and the movable splint (4) is provided with a positioning shaft (6) inside.
7. The vertical probe card fixing device according to claim 1, wherein: The rear end outer wall of the limit plate (1) is provided with an adjusting screw (7) fixedly connected to the positioning shaft (6), and the interior of the limit plate (1) is provided with an adjusting hole (9) for cooperating with the adjusting screw (7) to adjust the position of the movable splint (4).
8. The vertical probe card fixing device according to claim 6, wherein: The fixed block (8) and the base (5) are connected via external fixing screws to limit the position of the limit plate (1), and the movable splint (4) moves forward and backward under the control of the adjusting screw (7).