Test board switching device for 93K tester
By designing a test board adapter for the 93K tester, and utilizing pin modules and positioning post structures, the problem of complex PCB test board design and high cost in military integrated circuit screening and testing was solved, achieving flexible connection and efficient development.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-18
- Publication Date
- 2026-03-27
AI Technical Summary
In the existing technology, screening and testing of military integrated circuits requires the development of expensive and complex PCB test boards, resulting in high costs and low efficiency, and failing to meet the needs of large batches and small quantities.
Design a test board adapter for a 93K tester. The adapter uses a pin module and a positioning post structure. The pin module is connected to the module through a slot to realize the transfer of 93K tester resources, simplifying the PCB test board design. Only a daughter board needs to be made, and no mother board is needed.
It enables flexible test board connections, reduces development costs, improves development efficiency, and enhances system maintainability and test signal stability.
Smart Images
Figure CN224052245U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to test technical field, specifically point to a kind of test board switching device for 93K tester. BACKGROUND
[0002] Semiconductor integrated circuit industry develops rapidly, integrated circuit scale is increasingly larger, and at present integrated circuit is widely applied in each field, integrated circuit is from design to wafer manufacturing, to packaging, a large number of faults and defects can be generated in the process, so it needs to be screened and tested, and integrated circuit tester is the key test equipment for integrated circuit screening and testing.93K tester is an automatic test equipment (ATE), mainly used for semiconductor integrated circuit testing, with high speed, multi-function, high reliability and flexibility, etc., is one of the popular test platforms in semiconductor industry.
[0003] At present, for each integrated circuit test, test program and matching PCB test board need to be developed. Generally, the single variety and single batch quantity of civilian integrated circuit screening and testing is huge, so the cost of PCB test board development is very small when converted to each chip. However, for military integrated circuit screening and testing, it generally presents the characteristics of multiple batches, small quantity and urgent delivery time, and each integrated circuit screening and testing needs to develop matching PCB test board. The PCB test board of 93K tester is large in area, high in requirement and complex in design, and each PCB test board is relatively expensive. Therefore, it is urgent to develop a PCB test board switching device, which uses 93K test board as PCB test motherboard, and introduces 93K equipment resources to PCB test subboard through switching device. UTILITY MODEL CONTENT
[0004] In order to overcome the shortcomings of the prior art, the utility model provides a test board switching device for 93K tester.
[0005] To solve the above technical problems, the utility model provides the following technical scheme: a test board switching device for 93K tester, including bottom plate, central groove arranged at the middle position of bottom plate, four module grooves arranged on bottom plate and located at the upper side position of the central groove, four module grooves arranged on bottom plate and located at the lower side position of the central groove, and four front positioning columns arranged on the front of bottom plate and two rear positioning columns arranged on the back of bottom plate. The interior of each module groove is provided with a pin module with a point hole array, and a pin is arranged in each point hole array.
[0006] Further, the two ends of the pin are respectively provided with spring needle heads.
[0007] In order to better realize the utility model, the upper and lower sides of each pin module are respectively provided with two pin columns and a module positioning column.
[0008] The pin module is composed of a base and a protrusion arranged at the middle position of the base, the shape and size of the protrusion match those of the module groove; the pin module is connected with the module groove through the protrusion.
[0009] As a preferred mode, the base is made of aluminum alloy, and the pin module is made of engineering plastic.
[0010] The pin is made of alloy, and a gold film is plated on the surface of the pin.
[0011] Compared with the prior art, the utility model has the following advantages and beneficial effects:
[0012] 1. The pin is inserted into the pin module through the pulling and inserting mode, and the pin module is fixed into the corresponding module groove through the module positioning hole and the pin column, so that the design mode is flexible and convenient, and is very beneficial to daily use and maintenance.
[0013] 2. The rear positioning column on the back of the utility model is positioned to the PCB test mother board, and the utility model is fixed on the PCB test mother board through the screw nut; the front surface of the utility model is positioned to the PCB test daughter board through the front positioning column, and is fixed and connected with the PCB test daughter board through the screw. After the above connection mode is adopted, the equipment resources of the 93K tester can be transmitted to the test board adapter of the utility model through the PCB test mother board, and then is transmitted to the PCB test daughter board through the test board adapter. In this way, only the PCB test daughter board needs to be considered to be made, and the PCB test mother board does not need to be considered to be made, so that the design is flexible and convenient, the development cost is saved, and the development efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 It is the front view of the base plate of the utility model.
[0015] Figure 2 It is the back view of the base plate of the utility model.
[0016] Figure 3 It is the front view of the pin module of the utility model.
[0017] Figure 4 It is the back view of the pin module of the utility model.
[0018] Figure 5 It is the three-dimensional structure schematic view of the pin module of the utility model.
[0019] Figure 6 It is the structure schematic view of the pin of the utility model.
[0020] In the drawings, reference numerals 1-1 is the bottom plate 1, 2 is the pin module, 3 is the pin, 21 is the base, 22 is the protruding block, 101 is the large screw hole, 102 is the front positioning column, 103 is the small screw hole, 104 is the central groove, 105 is the rear positioning column, 201 is the pin column, 202 is the module positioning column, 301 is the spring needle. DETAILED DESCRIPTION
[0021] The preferred embodiments of the present application will be described in detail below with reference to the drawings, and those skilled in the art will appreciate that the description is merely illustrative and exemplary, and should not be construed as limiting the scope of protection of the present application.
[0022] Embodiment
[0023] The structure of the bottom plate 1 of the test board switching device described in the embodiment is shown in Figure 1 , 2 , which is made of aluminum alloy. A rectangular central groove 104 is provided at the middle position of the bottom plate 1, which is a through groove that penetrates the entire bottom plate 1. Four module grooves are provided on the bottom plate 1 above and below the central groove 104, and the four module grooves are arranged in the horizontal direction. The center axes of the four module grooves above the central groove 104 are on the same straight line and parallel to the center axis of the central groove 104; the center axes of the four module grooves below the central groove 104 are on the same straight line and parallel to the center axis of the central groove 104.
[0024] Four front positioning columns 102 are provided on the front surface of the bottom plate 1, and two rear positioning columns 105 are provided on the back surface of the bottom plate 1, and six large screw holes 101 and eight small screw holes 103 are provided on the bottom plate 1, and the structure is shown in Figure 1 , 2 .
[0025] A pin module 2 with a dot-shaped hole array is provided inside each module groove, and a pin 3 is provided in each dot-shaped hole array. The pin module 2 is made of engineering plastic, and two pin columns 201 and one module positioning column 202 are provided on the upper and lower sides of each pin module 2, and the structure is shown in Figure 3 , 4 .
[0026] The overall structure of the pin module 2 is shown in Figure 5As shown in the figure, it consists of a base 21 and a bump 22 provided at the middle position of the base 21. The length of the bump 22 is the same as that of the base 21, and its width is smaller than that of the base 21, so that the cross-section of the entire pin module 2 is in the shape of a "convex" character. For the convenience of installation and disassembly, the shape and size of the bump 22 should match the shape and size of the module slot, so as to ensure that the bump 22 can be inserted into the inside of the module slot, making the pin module 2 and the module slot form an integral whole.
[0027] The front of the pin module 2 is as Figure 3 shown, and the back of the pin module 2 is as Figure 4 shown. Four pin posts 201 and two module positioning posts 202 are provided on each pin module 2. That is, two pin posts 201 and one module positioning post 202 are provided on the base 21 of each pin module 2 and above the bump 22, and at the same time, two pin posts 201 and one module positioning post 202 are provided on the base 21 of each pin module 2 and below the bump 22. The four pin posts 201 are respectively located at the four corner edges of the base 21, and the module positioning post 202 above the bump 22 is arranged beside the pin post 201 near the upper left side of the bump 22, and the module positioning post 202 below the bump 22 is arranged beside the pin post 201 near the lower right side of the bump 22.
[0028] The structure of the pin 3 is as Figure 6 shown. It is used to realize the electrical connection between the 93K tester and the device under test and to connect different circuit modules or lines, enabling each part on the adapter board to work together to complete functions such as signal conversion and distribution. That is, the signal of the 93K tester is transmitted to each pin of the device under test chip, making the device under test chip work according to the test requirements, and then the response signal output by the device under test chip is transmitted back to the tester for analysis to determine whether the chip meets the performance indicators. At the same time, the pin 3 can mechanically fix the test board adapter device of this embodiment to the PCB test mother board and the PCB test daughter board, ensuring the stability of the connection and preventing the connection from loosening due to vibration, collision, etc. during the test process. After using the pin 3, it can ensure that when the test board adapter device fails or needs to be replaced, it can be conveniently pulled out from the PCB test mother board or the PCB test daughter board for maintenance or replacement operations, improving the maintainability and flexibility of the test system.
[0029] In order to ensure its use effect, the pin 3 is preferably made of alloy, and a gold film is plated on the surface of the pin 3, so as to reduce the contact resistance when the pin 3 is connected with other components, to make the current transmission efficiency higher, reduce the energy loss, and ensure the accurate and stable transmission of the test signal. The two ends of the pin 3 are respectively provided with spring needle heads 301, and the spring in the spring needle head 301 can generate elastic force, so that the needle in the spring needle head 301 keeps close contact with each interface. In the test process, even if there is slight vibration, shaking or position deviation, the elastic force of the spring can ensure that the needle and the measured object are not easily disconnected, and the stable transmission of the test signal is ensured.
[0030] In use of the adapter, the pins 3 are uniformly fixed and installed in the pin module 2, the pin module 2 is positioned on the base 1 through the module positioning column 202, and the pin module 2 is fixed in the module groove of the base 1 through the pin column 201. Then, the bottom plate 1 is positioned on the PCB test mother board through the two rear positioning columns 105 on the back of the bottom plate 1, and the bottom plate 1 is fixed on the PCB test mother board through the large screw hole 101 of the bottom plate 1 by using a screw and a nut. Finally, the PCB test daughter board is positioned on the base 1 through the four front positioning columns 102 on the front of the bottom plate 1, and the PCB test daughter board is fixed on the base 1 through the eight small screw holes 103 of the bottom plate 1 by using a screw. The installed PCB test daughter board, adapter and PCB test mother board are installed on the 93K tester, so that the tester resources can be transmitted from the PCB test mother board to the PCB test daughter board through the adapter.
[0031] As described above, the utility model can be better realized.
Claims
1. A test board adapter for a 93K tester, characterized in that: The application relates to a connector, which comprises a bottom plate (1), a central groove (104) arranged at the middle position of the bottom plate (1), four module grooves arranged on the bottom plate (1) and located at the upside position of the central groove (104), four module grooves arranged on the bottom plate (1) and located at the downside position of the central groove (104), four front positioning columns (102) arranged on the front surface of the bottom plate (1) and two rear positioning columns (105) arranged on the back surface of the bottom plate (1); the inside of each module groove is provided with a pin module (2) with a point-shaped hole array, and a pin (3) is arranged in each point-shaped hole array.
2. The test board adapter for a 93K tester of claim 1, wherein: The pin (3) is provided with spring needle heads (301) at both ends.
3. The test board adapter for a 93K tester of claim 2, wherein: The upper and lower sides of each pin module (2) are respectively provided with two pin columns (201) and a module positioning column (202).
4. The test board adapter for 93K tester according to any one of claims 1-3, characterized in that: The pin module (2) is composed of a base (21) and a protrusion (22) arranged at the middle position of the base (21), the shape and size of the protrusion (22) are matched with the shape and size of the module groove; the pin module (2) is connected with the module groove through the protrusion (22).
5. A test board adapter for a 93K tester according to claim 4, wherein: The bottom plate (1) is made of aluminum alloy.
6. The test board adapter for a 93K tester of claim 4, wherein: The pin module (2) is made of engineering plastic.
7. The test board adapter for a 93K tester of claim 4, wherein: The pin (3) is made of alloy and is plated with a gold film on the surface.