Sampling clamp suitable for discrete semiconductor device

Abstract

The utility model discloses a calibration clamp suitable for a discrete semiconductor device, and relates to the technical field of semiconductor testing. The device comprises a switch device, a plurality of sample tube plugs and three BNC connectors, the switch device comprises a box body and a switch button mechanism, three integrated switch mechanisms are linearly fixed in the box body, and the three BNC connectors are fixed in the box body and located under the three integrated switch mechanisms respectively. The integrated switch mechanism comprises an upper pole piece seat and a lower pole piece seat which are symmetrically arranged, and a switch gap is formed between the upper pole piece seat and the lower pole piece seat. By designing the novel clamp structure, a plurality of sample tubes can be jointly clamped and tested, synchronous replacement of test lines can be realized through one-time adjustment of the pull plate, the sample tubes do not need to be repeatedly inserted and pulled, the sample tubes are not easy to damage, the sample is simple and convenient to correct, the sample tube correcting efficiency can be improved, and meanwhile, the sample tube correcting damage probability is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of semiconductor testing, and particularly relates to a proofing fixture suitable for semiconductor discrete devices. Background Art

[0002] For the testing of semiconductor discrete devices, referring to the attached Figure 6 , currently, for daily parameter proofing, the sample tubes need to be inserted into the fixture to connect to the tester to complete the proofing work. Only one sample tube can be inserted for such proofing at a time, and the proofing efficiency is slow. After a high frequency of proofing, the sample tubes and plugs are easily damaged due to long-term plugging and unplugging.

[0003] In summary: The existing proofing has slow efficiency and the sample tubes are easily damaged. Therefore, it is a problem that needs to be solved by the workers in this field to design a proofing fixture that does not require repeated plugging and unplugging and has a higher efficiency. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a proofing fixture suitable for semiconductor discrete devices. By designing a new fixture structure, multiple sample tubes can be clamped and tested together, and through a single adjustment of the pull plate, the synchronous replacement of the test lines can be achieved. The sample tubes do not need to be repeatedly plugged and unplugged, are not easily damaged, the proofing is simple and convenient, the efficiency of sample tube proofing can be improved, and at the same time, the probability of sample tube proofing damage can be reduced.

[0005] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0006] The utility model is a proofing fixture suitable for semiconductor discrete devices, including a switch device, a plurality of sample tube plugs, and three BNC connectors;

[0007] The switch device includes a box body and a switch button mechanism;

[0008] Three integrated switch mechanisms are linearly fixed in the box body, and the three BNC connectors are fixed in the box body and are respectively located directly below the three integrated switch mechanisms;

[0009] The integrated switch mechanism includes an upper pole piece seat and a lower pole piece seat which are symmetrically arranged. A switch gap is formed between the upper pole piece seat and the lower pole piece seat. A plurality of pole pieces are linearly embedded and fixed on the opposite surfaces of the upper pole piece seat and the lower pole piece seat;

[0010] A plug wiring connected to the pole pieces is arranged on the upper pole piece seat. A bus is connected in parallel on a plurality of pole pieces of the lower pole piece seat, and the bus is connected to the BNC connector;

[0011] Three test lines are arranged on the sample tube plug, and the three test lines are respectively connected to the plug wirings on the three integrated switch mechanisms;

[0012] Three of the BNC connectors are respectively connected with BI wiring and BV wiring, CI wiring and CV wiring, EI wiring and EV wiring;

[0013] The switch button mechanism includes an integrated frame and three connection electrodes. The three connection electrodes are linearly fixed on the integrated frame, and the three connection electrodes are respectively opposite to the pole pieces on the three integrated switch mechanisms;

[0014] A plurality of guide rods are fixed at positions within the box body and between the switch gaps. The integrated frame slides along the plurality of guide rods. A pull plate is fixed on one side of the integrated frame. The pull plate penetrates through the box body and is fixed with a holding portion;

[0015] When the integrated frame is located within the integrated switch mechanism, the connection electrodes are press-fitted between the pole pieces of the upper pole piece seat and the lower pole piece seat.

[0016] Further, a plurality of elastic telescopic members are linearly fixed on the inner top surface of the box body. The ends of the elastic telescopic members are fixed with pressure balls. The plurality of elastic telescopic members and a plurality of upper pole piece seats on the integrated switch mechanism are arranged alternately. A pressure groove for cooperating with the pressure balls is provided on the upper surface of the pull plate.

[0017] Further, the connection electrode is of an I-shaped block structure, and guide slopes are provided at the edges of the upper surface and the lower surface of the connection electrode.

[0018] Further, the integrated frame is composed of four connection blocks and three mounting seats connected alternately. The connection electrodes are fixed within the mounting seats, and the upper surface and the lower surface of the connection electrodes respectively exceed the upper surface and the lower surface of the mounting seats.

[0019] Further, a plurality of embedding openings are provided on the upper pole piece seat. The pole pieces are fixed within the embedding openings and exceed the upper pole piece seat. The lower pole piece seat and the upper pole piece seat have the same structural features.

[0020] Further, a guide sleeve is fixed on the outer side of the box body. The pull plate penetrates through the guide sleeve and a sliding seal is provided between the pull plate and the guide sleeve.

[0021] The utility model has the following beneficial effects:

[0022] The utility model can clamp and test multiple sample tubes by designing a novel fixture structure, and through one adjustment of the pull plate, the synchronous replacement of the test lines can be realized. The sample tubes do not need to be repeatedly inserted and pulled out, the sample tubes are not easily damaged, the sample tube proofreading is simple and convenient, the efficiency of sample tube proofreading can be improved, and at the same time, the probability of sample tube proofreading damage can be reduced.

[0023] Of course, it is not necessary for any product implementing the utility model to simultaneously achieve all the above-mentioned advantages. Description of the Drawings

[0024] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0025] Figure 1 It is a schematic structural diagram of a proofing fixture applicable to semiconductor discrete devices of the present utility model;

[0026] Figure 2 It is a schematic structural diagram of a switch device;

[0027] Figure 3 It is a structural sectional view of the switch device;

[0028] Figure 4 It is a schematic structural diagram of an integrated switch mechanism;

[0029] Figure 5 It is a schematic structural diagram of a switch button mechanism;

[0030] Figure 6 It is a schematic structural diagram of an existing proofing fixture for semiconductor discrete devices;

[0031] In the drawings, the list of components represented by each reference numeral is as follows:

[0032] 1 - Switch device, 2 - Sample tube plug, 3 - BNC connector, 4 - Box body, 5 - Switch button mechanism, 6 - Integrated switch mechanism, 7 - Guide rod, 8 - Pulling plate, 9 - Elastic telescopic member, 10 - Sliding seal, 201 - Test wire, 301 - BI wiring, 302 - BV wiring, 303 - CI wiring, 304 - CV wiring, 305 - EI wiring, 306 - EV wiring, 401 - Guide sleeve, 501 - Integrated rack, 502 - Connecting electrode, 503 - Guide slope body, 504 - Connecting block, 505 - Mounting seat, 601 - Upper pole piece seat, 602 - Lower pole piece seat, 603 - Pole piece body, 604 - Plug wiring, 605 - Bus, 606 - Embedded opening, 801 - Holding part, 802 - Pressing groove, 901 - Pressing ball. Detailed implementation manners

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0034] Please refer to Figures 1-5 As shown, the utility model is a proofing fixture applicable to semiconductor discrete devices, including a switch device 1, a plurality of sample tube plugs 2, and three BNC connectors 3;

[0035] The switch device 1 includes a box body 4 and a switch button mechanism 5;

[0036] Three integrated switch mechanisms 6 are linearly fixed in the box body 4, and the three BNC connectors 3 are fixed in the box body 4 and are respectively located directly below the three integrated switch mechanisms 6;

[0037] The integrated switch mechanism 6 includes an upper pole piece seat 601 and a lower pole piece seat 602 which are symmetrically arranged. A switch gap is formed between the upper pole piece seat 601 and the lower pole piece seat 602. A plurality of pole pieces 603 are linearly embedded and fixed on the opposite surfaces of the upper pole piece seat 601 and the lower pole piece seat 602;

[0038] The upper pole piece seat 601 is provided with a plug wiring 604 connected to the pole piece 603. A bus 605 is connected in parallel on a plurality of pole pieces 603 of the lower pole piece seat 602, and the bus 605 is connected to the BNC connector 3;

[0039] The sample tube plug 2 is provided with three test wires 201, and the three test wires 201 are respectively connected to the plug wirings 604 on the three integrated switch mechanisms 6;

[0040] The three BNC connectors 3 are respectively connected with BI wiring 301 and BV wiring 302, CI wiring 303 and CV wiring 304, EI wiring 305 and EV wiring 306;

[0041] The switch button mechanism 5 includes an integrated frame 501 and three connection electrodes 502. The three connection electrodes 502 are linearly fixed on the integrated frame 501, and the three connection electrodes 502 are respectively opposite to the pole pieces 603 on the three integrated switch mechanisms 6;

[0042] A plurality of guide rods 7 are fixed in the box body 4 and at positions between the switch gaps. The integrated frame 501 slides along the plurality of guide rods 7. A pull plate 8 is fixed on one side of the integrated frame 501. The pull plate 8 penetrates through the box body 4 and is fixed with a holding part 801;

[0043] When the integrated frame 501 is located in the integrated switch mechanism 6, the connection electrode 502 is press-fitted between the pole pieces 603 of the upper pole piece seat 601 and the lower pole piece seat 602.

[0044] Among them, such as Figure 3As shown, several elastic telescopic members 9 are linearly fixed to the inner top surface of the box body 4. A pressing ball 901 is fixed to the end of the elastic telescopic member 9. The several elastic telescopic members 9 and several upper pole piece seats 601 on the integrated switch mechanism 6 are arranged in an interleaved manner. A pressing groove 802 for cooperating with the pressing ball 901 is provided on the upper surface of the pulling plate 8.

[0045] Among them, as Figure 3 and Figure 5 shown, the connecting electrode 502 is an I-shaped block structure, and guide slopes 503 are provided at the edges of the upper surface and the lower surface of the connecting electrode 502.

[0046] Among them, as Figure 5 shown, the integrated frame 501 is composed of four connecting blocks 504 and three mounting seats 505 connected in an interleaved manner. The connecting electrode 502 is fixed in the mounting seat 505, and the upper surface and the lower surface of the connecting electrode 502 respectively extend beyond the upper surface and the lower surface of the mounting seat 505.

[0047] Among them, as Figures 3-4 shown, several embedding openings 606 are provided on the upper pole piece seat 601. The pole piece body 603 is fixed in the embedding openings 606 and extends beyond the upper pole piece seat 601. The lower pole piece seat 602 has the same structural features as the upper pole piece seat 601.

[0048] Among them, as Figure 3 shown, a guide sleeve 401 is fixed to the outside of the box body 4. The pulling plate 8 passes through the guide sleeve 401 and a sliding seal 10 is provided between the pulling plate 8 and the guide sleeve 401.

[0049] The working principle of the present utility model is as follows: The working principle of the switch device 1 is that the position of the integrated frame 501 on the guide rod 7 can be adjusted by pulling the pulling plate 8. The cooperation of the elastic telescopic member 9, the pressing ball 901 and the pressing groove 802 can play a positioning role, so as to determine the position of the integrated frame 501, ensure that the connecting electrode 502 is clamped between the pole piece bodies 603 of the corresponding integrated switch mechanism 6, and thus realize the connection between the upper sample tube plug 2 and the BNC connector 3.

[0050] In the description of this specification, the description referring to terms such as "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0051] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principle and practical application of the present utility model, so that those skilled in the art can well understand and utilize the present utility model. The present utility model is only limited by the claims and their full scope and equivalents.

Claims

1. A proofing fixture suitable for semiconductor discrete devices, characterized in that: It comprises a switch device (1), a plurality of sample tube plugs (2) and three BNC connectors (3); The switch device (1) comprises a box body (4) and a switch button mechanism (5); Three integrated switch mechanisms (6) are linearly fixed in the box body (4), and the three BNC connectors (3) are fixed in the box body (4) and are respectively located directly below the three integrated switch mechanisms (6); The integrated switch mechanism (6) comprises an upper pole piece seat (601) and a lower pole piece seat (602) which are symmetrically arranged, a switch gap is formed between the upper pole piece seat (601) and the lower pole piece seat (602), and a plurality of pole piece bodies (603) are linearly embedded and fixed on the surfaces opposite to each other of the upper pole piece seat (601) and the lower pole piece seat (602); The upper pole piece seat (601) is provided with a plug connection (604) connected to the pole piece body (603); a bus (605) is connected in parallel to the pole piece bodies (603) of the lower pole piece seat (602); and the bus (605) is connected to the BNC connector (3); The sample tube plug (2) is provided with three test lines (201), and the three test lines (201) are respectively connected to the plug wirings (604) on three integrated switch mechanisms (6); The three BNC connectors (3) are respectively connected to a BI connection (301) and a BV connection (302), a CI connection (303) and a CV connection (304), and an EI connection (305) and an EV connection (306); The switch button mechanism (5) comprises an integrated frame (501) and three connection electrodes (502), wherein the three connection electrodes (502) are linearly fixed on the integrated frame (501), and the three connection electrodes (502) are respectively positioned opposite to the pole pieces (603) on the three integrated switch mechanisms (6); A plurality of guide rods (7) are fixed inside the box body (4) and at positions between the switch gaps. The integrated frame (501) slides along the plurality of guide rods (7). A pull plate (8) is fixed on one side of the integrated frame (501). The pull plate (8) passes through the box body (4) and is fixed with a holding portion (801). When the integrated frame (501) is located in the integrated switch mechanism (6), the connecting electrode (502) is interference-set between the pole piece bodies (603) of the upper pole piece seat (601) and the lower pole piece seat (602).

2. A proofing fixture for semiconductor discrete devices according to claim 1, characterized in that: A plurality of elastic telescopic parts (9) are linearly fixed on the inner top surface of the box body (4), a pressure ball (901) is fixed on the end of the elastic telescopic part (9), the plurality of elastic telescopic parts (9) and a plurality of upper pole piece seats (601) on the integrated switch mechanism (6) are arranged alternately, and a pressure groove (802) cooperating with the pressure ball (901) is provided on the upper surface of the pull plate (8).

3. A proofing fixture for semiconductor discrete devices according to claim 1, characterized in that: The connecting electrode (502) is an I-shaped block structure, and slope guides (503) are provided at the edges of the upper surface and the lower surface of the connecting electrode (502).

4. A proofing fixture for semiconductor discrete devices according to claim 1, characterized in that: The integrated frame (501) is composed of four staggeredly connected connection blocks (504) and three mounting seats (505), the connection electrode (502) is fixed in the mounting seat (505), and the upper surface and lower surface of the connection electrode (502) respectively exceed the upper surface and lower surface of the mounting seat (505).

5. A proofing fixture for semiconductor discrete devices according to claim 1, characterized in that: The upper pole piece seat (601) is provided with a plurality of embedding openings (606), the pole piece body (603) is fixed in the embedding openings (606) and extends beyond the upper pole piece seat (601), and the lower pole piece seat (602) and the upper pole piece seat (601) have the same structural features.

6. A proofing fixture for semiconductor discrete devices according to claim 1, characterized in that: A guide sleeve (401) is fixed on the outside of the box body (4), and the pull plate (8) passes through the guide sleeve (401) and a sliding seal (10) is provided between the pull plate (8) and the guide sleeve (401).

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