Test board switching device for 93K tester

Abstract

The invention discloses a test board switching device for a 93K tester, and the device comprises a bottom plate, a central groove disposed in the middle of the bottom plate, four module grooves disposed on the bottom plate and located at the upper side of the central groove, and four module grooves disposed on the bottom plate and located at the lower side of the central groove. The four front positioning columns are arranged on the front surface of the bottom plate; the two rear positioning columns are arranged on the back surface of the bottom plate; the interior of each module groove is provided with a pin module with a dotted hole array, and the interior of each dotted hole array is provided with a pin. The contact pins are inserted into the contact pin modules in a pulling and inserting mode, the contact pin modules are fixed into the module grooves corresponding to the contact pin modules through the module positioning holes and the pin columns, the design mode is flexible and convenient, and daily use and maintenance are quite facilitated.

Description

Technical Field

[0001] The invention relates to the field of testing technology, and in particular to a testing board switching device for a 93K tester. Background Art

[0002] The semiconductor integrated circuit industry is developing rapidly, and the scale of integrated circuits is getting larger and larger. At present, integrated circuits are widely used in various fields. From design to wafer manufacturing, and then to packaging, a large number of faults and defects may occur in the process of integrated circuits, so they need to be screened and tested, and the integrated circuit tester is the key test equipment for integrated circuit screening and testing. The 93K tester is an automatic test equipment (ATE), which is mainly used for semiconductor integrated circuit testing. It has the characteristics of high speed, multi-function, high reliability and flexibility, and is one of the popular test platforms in the semiconductor industry.

[0003] At present, for each integrated circuit test, it is necessary to develop a test program and a matching PCB test board. Generally, the number of single batches of civilian integrated circuit screening tests is huge, so the cost of PCB test board development is very small when converted to each chip. However, for military integrated circuit screening tests, there are generally many batches, small quantities, and urgent delivery dates. Each integrated circuit screening test requires the development of a matching PCB test board. The PCB test board of the 93K tester has a large area, high requirements, and complex design. The cost of each PCB test board is relatively expensive. Therefore, it is urgent to develop a PCB test board adapter, use the 93K test board as the PCB test motherboard, and use the adapter to guide the 93K equipment resources to the PCB test daughter board. Summary of the invention

[0004] In order to overcome the deficiencies of the prior art, the present invention proposes a test board adapter for a 93K tester.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a test board adapter for a 93K tester, comprising a base plate, a central groove arranged in the middle of the base plate, four module grooves arranged on the base plate and located at the upper side of the central groove, four module grooves arranged on the base plate and located at the lower side of the central groove, and four front positioning columns arranged on the front side of the base plate and two rear positioning columns arranged on the back side of the base plate; a pin module with a dot-shaped hole array is arranged inside each module groove, and a pin is arranged in each dot-shaped hole array.

[0006] Furthermore, spring needles are provided at both ends of the insertion pin.

[0007] In order to better implement the present invention, two pins and one module positioning column are respectively provided on the upper and lower sides of each pin module.

[0008] The pin module is composed of a base and a protrusion arranged in the middle of the base, and the shape and size of the protrusion match the shape and size of the module groove; the pin module is connected to the module groove through the protrusion.

[0009] As a preferred embodiment, the base plate is made of aluminum alloy, and the pin module is made of engineering plastic.

[0010] The pin is made of alloy and its surface is plated with a gold film.

[0011] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0012] 1. The plug pins described in the present invention are inserted into the plug pin module by plugging and unplugging, and the plug pin module is fixed to the corresponding module groove through the module positioning hole and the pin. This design is flexible and convenient, and is very conducive to daily use and maintenance.

[0013] 2. The present invention is positioned to the PCB test motherboard through the rear positioning column on the back side, and is fixed to the PCB test motherboard through screws and nuts; while the front side of the present invention is positioned to the PCB test daughter board through the front positioning column, and is fixedly connected to the PCB test daughter board through screws. After adopting the above connection method, the equipment resources of the 93K tester can be transferred to the test board adapter described in the present invention through the PCB test motherboard, and then transferred to the PCB test daughter board through the test board adapter. In this way, only the production of the PCB test daughter board can be considered, without considering the production of the PCB test motherboard. Not only is the design flexible and convenient, but it can also save development costs and improve development efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front view of the base plate of the present invention.

[0015] Figure 2 It is a back view of the base plate of the present invention.

[0016] Figure 3 It is a front view of the pin module of the present invention.

[0017] Figure 4 It is a rear view of the pin module of the present invention.

[0018] Figure 5 It is a schematic diagram of the three-dimensional structure of the pin module of the present invention.

[0019] Figure 6 It is a schematic diagram of the structure of the plug pin of the present invention.

[0020] Among them, the figure marks in the accompanying drawings are respectively: 1—base plate 1, 2—pin module, 3—pin, 21—base, 22—bump, 101—large screw hole, 102—front positioning column, 103—small screw hole, 104—central groove, 105—rear positioning column, 201—pin column, 202—module positioning column, 301—spring needle. DETAILED DESCRIPTION

[0021] Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are only illustrative and exemplary and should not be construed as limiting the scope of protection of the present invention.

[0022] Example

[0023] The structure of the bottom plate 1 of the test board adapter described in this embodiment is as follows Figure 1 , 2 As shown, the bottom plate 1 is made of aluminum alloy. A rectangular central groove 104 is provided in the middle of the bottom plate 1. The central groove 104 is a through groove that runs through the entire bottom plate 1. Four module grooves are provided on the bottom plate 1 above and below the central groove 104. The four module grooves are arranged in the horizontal direction. The central axes of the four module grooves above the central groove 104 are located on the same straight line and are parallel to the central axis of the central groove 104; the central axes of the four module grooves below the central groove 104 are located on the same straight line and are parallel to the central axis of the central groove 104.

[0024] Four front positioning posts 102 are provided on the front of the bottom plate 1, two rear positioning posts 105 are provided on the back of the bottom plate 1, and six large screw holes 101 and eight small screw holes 103 are provided on the bottom plate 1. Figure 1 , 2 shown.

[0025] Inside each module slot is a plug module 2 having a dot hole array, and inside each dot hole array is a plug pin 3. The plug module 2 is made of engineering plastic, and two pins 201 and a module positioning column 202 are respectively provided on the upper and lower sides of each plug module 2. The structure is as follows: Figure 3 , 4 shown.

[0026] The overall structure of the pin module 2 is as follows Figure 5As shown, it is composed of a base 21 and a convex block 22 arranged at the middle of the base 21. The length of the convex block 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. To facilitate installation and disassembly, the shape and size of the convex block 22 must match the shape and size of the module groove to ensure that the convex block 22 can be inserted into the inside of the module groove, so that the pin module 2 and the module groove form a whole.

[0027] The front side of the pin module 2 is as shown in FIG. Figure 3 As shown, the back side of the pin module 2 is as shown Figure 4 As shown, four pins 201 and two module positioning posts 202 are provided on each pin module 2. That is, two pins 201 and one module positioning post 202 are provided on the base 21 of each pin module 2 and located above the protrusion 22, and two pins 201 and one module positioning post 202 are provided on the base 21 of each pin module 2 and located below the protrusion 22. The four pins 201 are respectively located at the four corners of the base 21, while the module positioning post 202 located above the protrusion 22 is arranged next to the pin 201 on the left side above the protrusion 22, and the module positioning post 202 located below the protrusion 22 is arranged next to the pin 201 on the right side below the protrusion 22.

[0028] The structure of the pin 3 is as follows Figure 6 As 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, so that the various parts on the adapter board can work together to complete the functions of signal conversion and distribution. That is, the signal of the 93K tester is transmitted to the various pins of the chip under test, so that the chip under test works according to the test requirements, and then the response signal output by the chip under test 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 of this embodiment to the PCB test motherboard and the PCB test daughterboard to ensure the stability of the connection and prevent the connection from loosening due to vibration, collision and other reasons during the test process. After the pin 3 is used, it can be ensured that the test board adapter can be easily pulled out from the PCB test motherboard or the PCB test daughterboard when a failure occurs or needs to be replaced, and maintenance or replacement operations can be performed, thereby improving the maintainability and flexibility of the test system.

[0029] To ensure the effect of its use, the pin 3 is preferably made of alloy, and its surface is plated with a gold film to reduce the contact resistance when the pin 3 is connected to other components, so that the current transmission efficiency is higher, energy loss is reduced, and the test signal is accurately and stably transmitted. The two ends of the pin 3 are also provided with spring needles 301. The spring in the spring needle 301 can generate elastic force to keep the needle in the spring needle 301 in close contact with each interface. During the test, even if there is a slight vibration, shaking or position deviation, the elastic force of the spring can ensure that the needle and the object under test will not be easily disconnected, ensuring the stable transmission of the test signal.

[0030] When using the adapter, first evenly and fixedly install the pins 3 in the pin module 2, then position the pin module 2 on the base 1 through the module positioning column 202, and fix the pin module 2 inside the module groove of the base 1 through the pin 201. Then, position the base plate 1 on the PCB test motherboard through the two rear positioning columns 105 on the back of the base plate 1, and fix the base plate 1 on the PCB test motherboard with screws and nuts through the large screw holes 101 of the base plate 1. Finally, position the PCB test sub-board on the base 1 through the four front positioning columns 102 on the front of the base plate 1, and fix the PCB test sub-board on the base 1 with screws through the eight small screw holes 103 of the base plate 1. Install the installed PCB test sub-board, adapter, and PCB test motherboard on the 93K tester, so that the tester resources can be transferred from the PCB test motherboard to the PCB test sub-board through the adapter.

[0031] As described above, the present invention can be implemented better.

Claims

1. A test board adapter for a 93K tester, characterized in that: The invention comprises a base plate (1), a central groove (104) arranged at a middle position of the base plate (1), four module grooves arranged on the base plate (1) and located at an upper side of the central groove (104), four module grooves arranged on the base plate (1) and located at a lower side of the central groove (104), four front positioning columns (102) arranged on the front side of the base plate (1) and two rear positioning columns (105) arranged on the back side of the base plate (1); a pin module (2) having a dot-shaped hole array is arranged inside each module groove, and a pin (3) is arranged inside each dot-shaped hole array.

2. The test board adapter for a 93K tester according to claim 1, characterized in that: The two ends of the insertion pin (3) are respectively provided with spring needle heads (301).

3. The test board adapter for a 93K tester according to claim 2, characterized in that: Each of the pin modules (2) is provided with two pins (201) and a module positioning column (202) on the upper and lower sides respectively.

4. A test board adapter for a 93K tester according to any one of claims 1 to 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) match the shape and size of the module groove; the pin module (2) is connected to the module groove via the protrusion (22).

5. The test board adapter for a 93K tester according to claim 4, characterized in that: The bottom plate (1) is made of aluminum alloy.

6. The test board adapter for a 93K tester according to claim 4, characterized in that: The pin module (2) is made of engineering plastics.

7. The test board adapter for a 93K tester according to claim 4, characterized in that: The plug pin (3) is made of alloy, and its surface is plated with a gold film.

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