Clamp for thrust test of semiconductor chip
By designing semiconductor chip thrust test fixtures that level the clamping part and the longitudinal clamping part, the problem of unstable clamping of arc-surface workpieces in the prior art is solved, and fast and accurate thrust testing and temperature simulation are achieved.
Patent Information
- Application Number
- CN202422366538.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-27
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-09-27
AI Technical Summary
Existing semiconductor chip thrust test fixtures are difficult to effectively clamp arc workpieces, resulting in inaccurate test results and require manual position adjustments to multiple times.
A semiconductor chip thrust test fixture is designed, including a leveling clamping part and a longitudinal clamping part. The position of the movable seat is adjusted by a screw to make the workpiece parallel to the movable seat. Then, clamping is made with the clamping seat to ensure that the workpiece is clamped horizontally and can be heated to simulate the actual temperature.
The workpiece is clamped quickly and stably, avoiding multiple adjustments, ensuring the accuracy of the test results, and being able to simulate the actual use temperature.
Smart Images
Figure CN223172792U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of chip testing, and specifically relates to a fixture for semiconductor chip thrust testing. Background Art
[0002] Semiconductor wafer thrust testing is to apply pushing and pulling forces to the wafer using special equipment to simulate various mechanical stresses that the wafer may encounter during actual use, so as to evaluate the strength, durability, and stability of the connection between the wafer and the circuit board.
[0003] In the prior art, the fixture for wafer thrust testing is a screw clamping type. The moving seat is driven by a screw to move, and the distance between the two moving seats is reduced to clamp the workpiece. For workpieces with flat sides (USB plugs), the fixture in the prior art can clamp the workpiece through the two moving seats. However, if the two sides of the workpiece are arc-shaped (such as the Type-C plug of a mobile phone charger), when the arc surface contacts the clamping planes of the two moving seats, it is easy to move, making it difficult to clamp the workpiece in a horizontal state. It is necessary to manually adjust the position of the workpiece multiple times, which brings certain trouble to the testing, and the test results will also be affected when the workpiece not in a horizontal state is subjected to thrust testing. Summary of the Utility Model
[0004] The purpose of this application is to provide a fixture for semiconductor chip thrust testing to solve the technical problems raised in the above background art.
[0005] To achieve the above purpose, this application provides the following technical solution: A fixture for semiconductor chip thrust testing, including a base, an activity groove one is opened inside the base, and two activity seats are movably connected inside the activity groove one. A screw one is rotatably connected inside the activity groove one, and the screw one is screwed inside the two activity seats and one end penetrates through the base and extends outwards;
[0006] Both upper ends of the two activity seats are connected with a leveling and clamping part, and the leveling and clamping part includes two side plates symmetrically fixed to the upper end of the activity seat, a vertical plate fixed to the upper end of the activity seat, two sliding grooves opened on the opposite sides of the two side plates, a clamping seat slidably connected in the two sliding grooves, and a screw two screwed inside the vertical plate, and one end of the screw two is rotatably connected to one side of the clamping seat.
[0007] In one implementation, a longitudinal clamping part is connected inside both of the two clamping seats. The longitudinal clamping part includes an activity groove two opened inside the clamping seat, a screw three screwed inside the clamping seat and one end extending into the activity groove two, and a pressing plate rotatably connected to one end of the screw three.
[0008] In one implementation, two guide rods are symmetrically fixed inside the activity groove two, and two guiding grooves matching the two guide rods are symmetrically opened inside the pressing plate.
[0009] In one embodiment, heating parts are connected to one side of each of the two clamping seats. The heating part includes an extension end integrally formed on the outer surface of one side of the clamping seat, a through groove opened in the extension end and the interior of the clamping seat, a filter screen fixed at the opening of the through groove, a fan and an electric heating element fixed on the inner wall of the through groove, and the fan is located between the electric heating element and the filter screen.
[0010] In one embodiment, two air guide plates are rotatably connected in the through groove inside the extension end. Two sprockets are respectively fixed on one side of the two air guide plates. The two sprockets are connected by a chain belt. A motor is fixed on the outer surface of one side of the extension end, and the output shaft of the motor penetrates through the extension end and is fixed to one of the sprockets.
[0011] In one embodiment, one side of the movable seat is slidably connected to the upper end of the base.
[0012] Compared with the prior art, the beneficial effects of the present application are as follows:
[0013] In the present application, by providing a leveling and clamping part, the positions of the two movable seats are first adjusted by the first screw rod, and then the workpiece is directly placed on the movable seat, so that the lower end of the workpiece contacts the upper end of the movable seat, so that the workpiece can be parallel to the upper end of the movable seat. Then, by rotating the second screw rod to drive the clamping seat to move, the two clamping seats clamp the two sides of the workpiece, which can quickly help the workpiece to be leveled, and then clamp the two sides of the workpiece in a horizontal state, quickly and stably realizing the clamping of the workpiece, without repeatedly adjusting the position of the workpiece, enabling the workpiece to be subjected to a thrust test in a horizontal state and avoiding affecting the test results. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 is a schematic diagram of the overall structure of the present application;
[0015] Figure 2 is a schematic diagram of the longitudinal clamping part structure of the present application;
[0016] Figure 3 is a schematic diagram of the second movable groove and the guide rod structure of the present application;
[0017] Figure 4 is a cross-sectional view of the movable seat of the present application;
[0018] Figure 5 is a schematic diagram of the sprocket, chain belt and motor structure of the present application.
[0019] In the figure: 1. Base; 11. First movable slot; 12. First screw; 2. Movable seat; 3. Leveling and clamping part; 31. Side plate; 32. Slide slot; 33. Clamping seat; 34. Vertical plate; 35. Second screw; 4. Longitudinal clamping part; 41. Third screw; 42. Pressing plate; 43. Guide rod; 44. Second movable slot; 5. Heating part; 51. Extension end; 52. Filter screen; 53. Fan; 54. Electric heating element; 55. Through slot; 56. Air guide plate; 57. Motor; 58. Sprocket; 59. Chain belt. Specific implementation manner
[0020] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.
[0021] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.
[0022] Embodiment:
[0023] Please refer to Figures 1-5 , the present application provides a technical solution: a fixture for semiconductor chip thrust testing, including a base 1, a first movable slot 11 is opened inside the base 1, and two movable seats 2 are movably connected inside the first movable slot 11. A first screw 12 is rotatably connected inside the first movable slot 11. The first screw 12 is screwed inside the two movable seats 2 and one end penetrates through the base 1 and extends outward;
[0024] Both upper ends of the two movable seats 2 are connected with leveling and clamping parts 3. The leveling and clamping part 3 includes two side plates 31 symmetrically fixed on the upper end of the movable seat 2, a vertical plate 34 fixed on the upper end of the movable seat 2, two sliding grooves 32 opened on the opposite sides of the two side plates 31, a clamping seat 33 slidably connected in the two sliding grooves 32, and a second screw rod 35 screwed inside the vertical plate 34. One end of the second screw rod 35 is rotatably connected with one side of the clamping seat 33. One side of the movable seat 2 is slidably connected with the upper end of the base 1. Place the base 1 on a horizontal tabletop, then rotate the first screw rod 12 to drive the two movable seats 2 to move towards each other, so that the distance between the two movable seats 2 is less than the width of the product. Then place the product on the upper ends of the two movable seats 2, so that the bottom surface of the product contacts the top surface of the movable seat 2. In this way, the workpiece can be parallel to the upper end of the movable seat 2. Then, by rotating the second screw rod 35 to drive the clamping seat 33 to move, the two clamping seats 33 clamp the two sides of the workpiece. First, quickly help the workpiece to be leveled, and then clamp the two sides of the workpiece in a horizontal state, quickly and stably realizing the clamping of the workpiece, without repeatedly adjusting the position of the workpiece, enabling the workpiece to be subjected to a thrust test in a horizontal state and avoiding affecting the test results.
[0025] As Figure 2 and Figure 3 shown, both of the two clamping seats 33 are internally connected with longitudinal clamping parts 4. The longitudinal clamping part 4 includes a second movable groove 44 opened inside the clamping seat 33, a third screw rod 41 screwed inside the clamping seat 33 and one end of which extends into the second movable groove 44, and a pressing plate 42 rotatably connected to one end of the third screw rod 41. Two guide rods 43 are symmetrically fixed inside the second movable groove 44. Guide grooves matching the two guide rods 43 are symmetrically opened inside the pressing plate 42. The longitudinal clamping part 4 is for facilitating the longitudinal clamping of an irregular circuit board or an irregular workpiece. Since the two sides of the irregular circuit board or workpiece may have irregular shapes, the circuit board or workpiece is placed between the pressing plate 42 and the inner bottom wall of the second movable groove 44. The lower end of the circuit board or workpiece contacts the inner bottom wall of the second movable groove 44. Rotate the third screw rod 41 to make the pressing plate 42 descend and press on the upper end of the circuit board or workpiece, realizing the longitudinal clamping of the circuit board or workpiece and improving the applicability of this fixture.
[0026] As Figure 4 and Figure 5 shown, one side of each of the two clamping seats 33 is connected with a heating part 5. The heating part 5 includes an extension end 51 integrally formed on the outer surface of one side of the clamping seat 33, a through groove 55 opened in the extension end 51 and the clamping seat 33, a filter screen 52 fixed at the opening of the through groove 55, a fan 53 fixed on the inner wall of the through groove 55, and an electric heating element 54, and the fan 53 is located between the electric heating element 54 and the filter screen 52.
[0027] Two air guide plates 56 are rotatably connected in a through groove 55 inside the extension end 51, and two sprockets 58 are fixedly connected to one side of the two air guide plates 56 respectively. The two sprockets 58 are connected by a chain belt 59. A motor 57 is fixedly connected to the outer surface of one side of the extension end 51, and an output shaft of the motor 57 penetrates through the extension end 51 and is fixedly connected to one of the sprockets 58.
[0028] The external air can be drawn into the through groove 55 by the fan 53. The electric heating element 54 works to heat the gas in the through groove 55. The heated gas is discharged from the opening of the through groove 55 inside the extension end 51. The hot gas can blow on the workpiece to heat the workpiece, simulating the actual use temperature of the workpiece, facilitating the thrust test of the workpiece at a certain temperature. When the motor 57 rotates, it can drive one of the sprockets 58 and one of the air guide plates 56 to rotate. When the rotating sprocket 58 rotates, it drives the other sprocket 58 and the air guide plate 56 to rotate through the chain belt 59, so that the two air guide plates 56 at the opening of the through groove 55 rotate, and the air discharged from the opening of the through groove 55 can be directionally adjusted to ensure that the air discharged from the opening of the through groove 55 can blow on the workpiece.
[0029] The foregoing has shown and described the basic principles, main features and advantages of the present application. For those skilled in the art, it is obvious that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present application is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application, and any reference signs in the claims should not be regarded as limiting the claims involved.
[0030] Although the embodiments of the present application have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present application. The scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A fixture for semiconductor chip thrust testing, comprising a base (1), characterized in that: The base (1) is internally provided with a first movable groove (11), and two movable seats (2) are movably connected inside the first movable groove (11). A first screw rod (12) is rotatably connected in the first movable groove (11). The first screw rod (12) is screwed into the two movable seats (2) and one end thereof penetrates through the base (1) and extends outwards; Both upper ends of the two movable seats (2) are connected with a leveling and clamping part (3). The leveling and clamping part (3) includes two side plates (31) symmetrically fixed to the upper ends of the movable seats (2), a vertical plate (34) fixed to the upper ends of the movable seats (2), two sliding grooves (32) opened on the opposite sides of the two side plates (31), a clamping seat (33) slidably connected in the two sliding grooves (32), and a second screw rod (35) screwed inside the vertical plate (34). One end of the second screw rod (35) is rotatably connected to one side of the clamping seat (33).
2. The fixture for semiconductor chip thrust test according to claim 1, wherein: Both of the two clamping seats (33) are internally connected with a longitudinal clamping part (4). The longitudinal clamping part (4) includes a second movable groove (44) opened inside the clamping seat (33), a third screw rod (41) screwed inside the clamping seat (33) and one end thereof extending into the second movable groove (44), and a pressing plate (42) rotatably connected to one end of the third screw rod (41).
3. The fixture for semiconductor chip thrust test according to claim 2, wherein: Two guide rods (43) are symmetrically fixed inside the second movable groove (44). Guide grooves matching the two guide rods (43) are symmetrically opened inside the pressing plate (42).
4. A fixture for semiconductor chip thrust test according to claim 3, characterized in that: One side of each of the two clamping seats (33) is connected with a heating part (5). The heating part (5) includes an extension end (51) integrally formed on the outer surface of one side of the clamping seat (33), a through groove (55) opened inside the extension end (51) and the clamping seat (33), a filter screen (52) fixed at the opening of the through groove (55), a fan (53) and an electric heating element (54) fixed on the inner wall of the through groove (55). The fan (53) is located between the electric heating element (54) and the filter screen (52).
5. The fixture for semiconductor chip thrust test according to claim 4, wherein: Two air guide plates (56) are rotatably connected in the through groove (55) inside the extension end (51). Two chain wheels (58) are respectively fixed to one side of the two air guide plates (56). The two chain wheels (58) are connected by a chain belt (59). A motor (57) is fixed to the outer surface of one side of the extension end (51). The output shaft of the motor (57) penetrates through the extension end (51) and is fixed to one of the chain wheels (58).
6. The fixture for semiconductor chip thrust test according to claim 5, characterized in that: One side of the movable seat (2) is slidably connected to the upper end of the base (1).