Resistance test fixture and resistance test equipment

Abstract

The utility model provides a resistance test fixture and resistance test equipment, and the resistance test fixture comprises a needle distribution plate which comprises a first needle distribution plate and a second needle distribution plate, one side of the first needle distribution plate and one side of the second needle distribution plate are each provided with a plurality of test needles, and each test needle is connected with a connecting line; the sample placing plate is provided with a plurality of placing positions used for placing resistance value samples to be tested, the sample placing plate is located between the first needle distributing plate and the second needle distributing plate during use, and the sides, provided with test needles, of the first needle distributing plate and the second needle distributing plate face the sample placing plate; and the first needle distributing plate, the sample placing plate and the second needle distributing plate are locked through lock catches, so that the test needles on the first needle distributing plate and the test needles on the second needle distributing plate respectively abut against the two sides of the resistance value sample to be tested. The resistance test fixture provided by the utility model does not need manual welding of test connecting wires, can realize one-time batch resistance test, and improves the test efficiency.

Description

Technical Field

[0001] This utility model relates to the field of semiconductor testing technology, specifically to a resistance testing fixture and resistance testing equipment. Background Technology

[0002] In the circuit board industry, environmental reliability testing is a crucial part of the reliability testing process before circuit boards are shipped. Environmental reliability testing typically involves placing the product in extreme environments (such as high and low temperatures, high humidity, and high pressure), and then soldering circuitry onto the product surface and connecting the wires to online monitoring equipment to monitor real-time changes in its resistance.

[0003] Currently, before conducting environmental testing in the industry, testers must weld connecting wires onto the surface of the board to be tested, one point at a time, one sample at a time. This is labor-intensive and inefficient, and not only can it easily damage the samples, but the flux splashed during welding can also cause short circuits and poor resistance. Utility Model Content

[0004] To overcome the shortcomings of the prior art, this utility model provides a resistance testing fixture and resistance testing equipment that eliminates the need for manual soldering of test connection wires, enabling batch resistance testing in one go and improving testing efficiency.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] The first aspect of this utility model discloses a resistance testing fixture, comprising:

[0007] The needle plate includes a first needle plate and a second needle plate. Both the first needle plate and the second needle plate have multiple test needles on one side, and each test needle is connected to a connecting wire.

[0008] The sample placement plate has multiple placement positions for placing the resistance sample to be tested. In use, the sample placement plate is located between the first needle plate and the second needle plate. The side of the first needle plate and the second needle plate with test needles both face the sample placement plate. The first needle plate, the sample placement plate and the second needle plate are locked together by a latch, so that the test needles on the first needle plate and the test needles on the second needle plate respectively abut against the two sides of the resistance sample to be tested.

[0009] The above technical solution involves placing the resistance sample to be tested in the placement position of the sample placement plate, locking the first needle plate, the sample placement plate, and the second needle plate to make the test needle contact the resistance sample to be tested, thereby connecting the test needle and the resistance sample to be tested, and then testing the resistance value. After the test is completed, the needle plate and the sample placement plate are released to interrupt the test. There is no need to manually solder the test connection wires. It is not only convenient to operate, but also enables batch testing of resistance values ​​at one time, thus improving testing efficiency.

[0010] Furthermore, the sample placement plate is equipped with multiple movable sample bases, which are grouped in pairs. Within each pair, the two sample bases are spaced apart to form a placement position for the resistance sample to be measured, and the spacing between the bases is adjustable. The adjustable distance between the sample bases can accommodate samples of different sizes, resulting in a simple structure and easy operation.

[0011] Furthermore, the first end of the sample base is provided with a groove extending from the first end to the second end. The grooves of the two sample bases in each group are arranged opposite each other to hold the resistance sample to be measured. The sample can be held by the grooves of the two sample bases, which is simple in structure, and the distance between the two grooves is adjustable to accommodate samples of different sizes.

[0012] Furthermore, at least one side of the groove is provided with a through hole. When the resistance sample to be tested is stuck in the groove, a bolt passes through the through hole, and the bolt abuts against the resistance sample to be tested. By having the bolt abut against the resistance sample to be tested, the resistance sample to be tested can be more stably fixed on the sample base, and the resistance sample to be tested will not move during the locking fixture and testing, thus improving stability.

[0013] Furthermore, the sample placement plate is provided with a first slide rail, which is arranged along the moving direction of the sample base. The sample base is movably connected to the first slide rail to adjust the spacing between two sample bases in each group. The first slide rail is used to slide with the sample base to adjust the spacing between the sample bases.

[0014] Furthermore, both the first and second needle plates are provided with multiple movable test needle bases, with two test needles movably mounted on each test needle base. The positions of the test needles and test needle bases are movable to facilitate testing samples of different sizes.

[0015] Furthermore, both the first and second needle plates are equipped with second slide rails. These second slide rails are positioned along the moving direction of the test needle base. The test needle base is movably connected to the second slide rail, and slides along it, ensuring that the position of each test needle base corresponds to the position of each sample base. This correspondence between the test needle base and the sample base positions facilitates the alignment of the measurement point positions of the test needle and the sample, making testing more convenient.

[0016] Furthermore, a spring is provided on the test probe base, and the test probe is connected to the spring. The spring can provide cushioning when the test probe comes into contact with the resistance sample to be measured, thereby improving the service life of the test probe. The spring is movable, driving the test probe to move on the test probe base.

[0017] Furthermore, the sample placement plate is provided with a first slide rail pressure strip, and both the first and second needle plates are provided with second slide rail pressure strips. The slide rail pressure strips are used to fix the slide rails.

[0018] The second aspect of this utility model discloses a resistance testing device, including a resistance monitor and a resistance testing fixture as described in any one of the first aspects. In use, a connecting line is connected to the resistance monitor.

[0019] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0020] This application allows for resistance testing by placing the sample to be tested in the placement position of the sample placement plate, locking the first needle plate, the sample placement plate, and the second needle plate to make the test needle contact the sample to be tested, and then testing the resistance value. After the test is completed, the needle plate and the sample placement plate are released to interrupt the test. There is no need to manually solder the test connection wires, which is not only convenient to operate, but also enables batch resistance testing at one time, thus improving testing efficiency.

[0021] To make the above and other objects, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a cross-sectional view of a resistance testing fixture provided in an embodiment of this utility model;

[0024] Figure 2 This is a top view of a first needle plate provided in an embodiment of the present invention;

[0025] Figure 3 This is a top view of a second needle plate provided in an embodiment of the present invention;

[0026] Figure 4 This is a top view of a sample placement plate provided in an embodiment of this utility model;

[0027] Figure 5 This is a cross-sectional view of a sample base provided in an embodiment of this utility model;

[0028] Figure 6This is an enlarged schematic diagram of the structure during the testing of a sample resistance value to be tested, provided by an embodiment of this utility model.

[0029] The reference numerals in the above figures are as follows: 1. First needle plate; 2. Second needle plate; 3. Test needle base; 4. Test needle; 5. Connecting wire; 6. Sample placement plate; 7. Sample base; 8. Spring; 9. Sample of resistance to be tested; 10. Lock; 11. First slide rail; 12. Second slide rail; 13. First slide rail pressure strip; 14. Second slide rail pressure strip; 15. Bolt. Detailed Implementation

[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. In addition, the accompanying drawings of the present invention are only simple schematic illustrations and are not depictions based on actual dimensions, as stated in advance.

[0031] In this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "forward," "backward," "between," "nearer," and "farthest" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. It should also be noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] It should be understood that while terms such as "first," "second," and "third" may be used in this document to describe various components or signals, these components or signals should not be limited by these terms. These terms are primarily used to distinguish one component from another, or one signal from another. Furthermore, the term "or" as used herein should, as appropriate, include any combination of one or more of the related listed items.

[0033] Reference Figures 1-5As shown in the figure, this application embodiment provides a resistance testing fixture for batch testing the resistance change of a resistance sample 11 to be tested. The resistance testing fixture includes a needle plate and a sample placement plate 6. The needle plate includes a first needle plate 1 and a second needle plate 2. Each side of the first needle plate 1 and the second needle plate 2 is provided with a plurality of test needles 4. Each test needle 4 is connected to a connecting wire 5. The sample placement plate 6 is provided with a plurality of placement positions for placing the resistance sample 9 to be tested. In use, the sample placement plate 6 is placed between the first needle plate 1 and the second needle plate 2. The sides of the first needle plate 1 and the second needle plate 2 with test needles 4 face the sample placement plate 6. The first needle plate 1, the sample placement plate 6 and the second needle plate 2 are locked together by a latch 10, so that the test needles 4 on the first needle plate 1 and the test needles 4 on the second needle plate 2 respectively abut against the two sides of the resistance sample 9 to be tested.

[0034] With the above structure, resistance value testing and interruption testing can be performed by locking and releasing the first needle plate 1, the sample placement plate 6 and the second needle plate 2. There is no need to manually solder test connection wires. This not only makes the operation convenient, but also enables batch resistance value testing at one time, thus improving testing efficiency.

[0035] It should be noted that the latch 10 in this embodiment is a known latch, such as a square latch, used to lock the first needle plate 1, the sample placement plate 6 and the second needle plate 2. In other possible embodiments, the latch 10 may also be a snap fastener or latch of other shapes or structures or other components that can play a locking or clamping role, so that the first needle plate 1, the sample placement plate 6 and the second needle plate 2 form an abutment.

[0036] To facilitate contact between test probe 4 and the resistance sample 9 to form a connection, refer to... Figure 1 In the embodiments of this application, the first needle plate 1 is disposed above the sample placement plate 6, and the second needle plate 2 is disposed below the sample placement plate 6. The test needles 4 on the first needle plate 1 face the upper surface of the sample placement plate 6, and the test needles 4 on the second needle plate 2 face the lower surface of the sample placement plate 6.

[0037] Reference Figure 4 and Figure 5 As shown in the embodiments of this application, the sample placement plate 6 is provided with multiple sample bases 7, which are arranged in pairs. The two sample bases 7 in each pair are spaced apart to form a placement position for placing samples. The spacing between the two sample bases 7 is adjustable to accommodate samples of different sizes to be tested for resistance values. The sample bases 7 are detachably mounted on the sample placement plate 6, and the number of sample bases 7 can be adjusted according to actual needs.

[0038] To make the position of the sample base 7 adjustable and movable, in one possible embodiment, the sample placement plate 6 is provided with a first slide rail 11. The first slide rail 11 is arranged along the moving direction of the sample base 7, and the sample base 7 is movably arranged on the first slide rail 11 to adjust the spacing between the two sample bases 7 in each group. The position of the first slide rail 11 is adjustable in a direction perpendicular to the moving direction of the sample base 7.

[0039] To ensure the resistance sample 9 is placed more stably in its position, such as Figure 5 As shown, in one possible embodiment, the first end of the sample base 7 is provided with a groove extending from the first end of the sample base 7 to the second end, and the grooves of the two sample bases 7 in each group are arranged opposite to each other to hold the resistance sample to be tested.

[0040] To further improve the stability of the resistance sample 9 under test within the groove, such as Figure 5 As shown, at least one side of the groove is provided with a through hole. When the resistance sample 9 to be measured is stuck in the groove, a bolt 15 is inserted in the through hole. The bolt 15 abuts against the resistance sample 9 to be measured in order to fix the resistance sample 9 to be measured.

[0041] It should be noted that the first end and the second end in the above embodiments are only for the convenience of explaining the extension direction of the groove, and do not limit the specific setting position of the structure. One side of the groove is the side of the sample base facing the test needle.

[0042] like Figure 2 and Figure 3 As shown, the first needle plate 1 and the second needle plate 2 have the same structure and size.

[0043] In one possible embodiment, both the first needle plate 1 and the second needle plate 2 are provided with multiple movable test needle bases 3, with every two test needles 4 movably mounted on one test needle base 3. The test needle bases 3 are detachably mounted on the needle plate, and the number of test needle bases 3 can be adjusted according to actual needs.

[0044] To make the position of the test needle base 3 adjustable and movable, in one possible embodiment, both the first needle plate 1 and the second needle plate 2 are provided with a second slide rail 12. The second slide rail 12 is arranged along the moving direction of the test needle base 3, and the test needle base 3 is movably arranged on the second slide rail 12. The test needle base 3 slides along the second slide rail 12 so that the position of each test needle base 3 corresponds to the position of each sample base 7. The position of the second slide rail 12 is adjustable in the direction perpendicular to the moving direction of the test needle base 3.

[0045] like Figure 6As shown, in one possible embodiment, a spring 8 is provided on the test needle base 3, and the test needle 4 is connected to the spring 8 so that the test needle 4 is compressed and retracted after it pierces the resistance sample 9 to be tested, thereby protecting the test needle 4.

[0046] In one possible embodiment, in order to fix the first slide rail 11 and the second slide rail 12, the sample placement plate 6 is provided with a first slide rail pressure strip 13, and the first needle plate 1 and the second needle plate 2 are both provided with a second slide rail pressure strip 14.

[0047] This application embodiment also provides a resistance testing device, including a resistance monitor and a resistance testing fixture as described in the above embodiment. In use, the connecting line 5 is connected to the resistance monitor to test the resistance value.

[0048] When using the resistance testing fixture of this application, the resistance sample 9 to be tested is first embedded into the groove formed by the sample base 7 one by one. After fixing the resistance sample 9 to be tested with bolts 15, the first needle plate 1, the sample placement plate 6 and the second needle plate 2 are locked with the buckle 10, so that the test needles 4 on the first needle plate 1 and the second needle plate 2 come into contact with the surface of the resistance sample 9 to be tested. Then, one end of the connecting wire 5 of each test needle 4 on the resistance testing fixture is inserted into the input channel of the resistance monitoring instrument to start testing the resistance value.

[0049] This utility model uses specific embodiments to illustrate the principle and implementation of the utility model. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​the utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of ​​the utility model. Therefore, the content of this specification should not be construed as a limitation of the utility model.

Claims

1. A resistance test fixture, comprising: The utility model relates to a resistance value testing tool, which comprises: a needle cloth plate, including a first needle cloth plate and a second needle cloth plate, and a plurality of test needles are arranged on one side of the first needle cloth plate and the second needle cloth plate, and a connecting wire is connected to each test needle; a sample placement plate, which is provided with a plurality of placement positions for placing resistance value samples to be tested, and in use, the sample placement plate is located between the first needle cloth plate and the second needle cloth plate, and the side of the first needle cloth plate and the second needle cloth plate provided with the test needles faces the sample placement plate, and the first needle cloth plate, the sample placement plate and the second needle cloth plate are locked by a lock buckle, so that the test needles on the first needle cloth plate and the test needles on the second needle cloth plate respectively abut against both sides of the resistance value sample to be tested.

2. The resistance testing fixture of claim 1, wherein, The sample placement plate is provided with a plurality of movable sample bases, and the plurality of sample bases are arranged in pairs, and the two sample bases in each pair are arranged at intervals to form a placement position for placing a resistance value sample to be tested, and the interval distance is adjustable.

3. The resistance testing fixture of claim 2, wherein: The first end of the sample base is provided with a groove extending from the first end to the second end of the sample base, and the grooves of the two sample bases in each pair are oppositely arranged to clamp the resistance value sample to be tested.

4. The resistance testing fixture of claim 3, wherein, At least one side of the groove is provided with a through hole, and when the resistance value sample to be tested is clamped in the groove, a bolt is arranged in the through hole, and the bolt abuts against the resistance value sample to be tested.

5. The resistance testing fixture of claim 2, wherein: The sample placement plate is provided with a first sliding rail, which is arranged along the moving direction of the sample base, and the sample base is movably connected to the first sliding rail to adjust the interval distance between the two sample bases in each pair.

6. The resistance testing fixture of claim 1, wherein: The first needle cloth plate and the second needle cloth plate are each provided with a plurality of movable test needle bases, and each two test needles are movably arranged on a test needle base.

7. The resistance testing fixture of claim 6, wherein: The first needle cloth plate and the second needle cloth plate are each provided with a second sliding rail, which is arranged along the moving direction of the test needle base, and the test needle base is movably connected to the second sliding rail, and the test needle base slides along the second sliding rail, so that the position of each test needle base corresponds to the position of each sample base.

8. The resistance testing fixture of claim 6, wherein: The test needle base is provided with a spring, and the test needle is connected to the spring.

9. The resistance testing fixture of claim 1, wherein, The sample placement plate is provided with a first sliding rail pressing strip, and the first needle cloth plate and the second needle cloth plate are each provided with a second sliding rail pressing strip.

10. A resistance testing apparatus comprising a resistance monitor, characterized in that, The utility model also includes the resistance value testing tool according to any one of claims 1-9, and in use, the connecting wire is connected to the resistance value monitoring instrument.

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