KGD test socket

Abstract

The utility model belongs to the field of semiconductor test application technology, specifically disclose KGD test socket, including with air channel upper cover and with air channel base, with air channel upper cover, with air channel base respectively insert one group upper pneumatic connector, lower pneumatic connector, with air channel upper cover, with air channel base the cavity that constitutes from below to above stack arrangement has connecting strip support plate, signal connecting strip, needle bushing, probe, copper block and with slot guide frame, wherein, copper block end surface places the chip of waiting for testing, probe penetrates copper block after with the chip of waiting for testing and abuts, needle bushing is located one end of probe end face, and with signal connecting strip abuts. The utility model has the beneficial effect that: 1, integrated design as a whole constitutes, quick disassembly, low degree of complexity installs simultaneously, convenient maintenance, low cost, 2, the frame component of constituting support block is aluminium alloy, and support block splicing formula supports quick replacement, weight reduction and strength balance, in addition, low weight, good corrosion resistance, moderate cost.

Description

Technical Field

[0001] This utility model belongs to the field of semiconductor testing application technology, specifically relating to KGD test sockets. Background Technology

[0002] In the field of precision manufacturing of power semiconductors, superior wafer quality and chip performance form the cornerstone of stable operation in end applications. With the rapid development of SiC module packaging technology, especially multi-chip package (MCP) technology, the quality requirements for bare dies during the packaging process have reached unprecedented levels. Even if a single chip has only a 1% failure rate, the failure rate of a multi-chip packaged module will increase exponentially.

[0003] KGD testing involves static and dynamic testing of bare chips, subjecting devices to high stress such as high voltage, high current, and high temperature to eliminate chips that fail early or have defects, ensuring that the final selected chips meet the quality and reliability requirements of the packaged finished product.

[0004] Currently, the problems with KGD test sockets are: (1) complex wiring, susceptible to interference, and inconvenient maintenance; (2) high energy consumption, heavy weight, and high maintenance cost of metal support blocks.

[0005] In view of the above problems, this utility model provides a KGD test socket. Utility Model Content

[0006] Purpose of the utility model: The purpose of this utility model is to address the shortcomings of the existing technology by providing a KGD test socket and solving the problems existing in the background technology.

[0007] Technical solution: The KGD test socket provided by this utility model includes an upper cover with an air passage and a base with an air passage. The upper cover with an air passage and the base with an air passage are respectively connected to a set of upper pneumatic connectors and a set of lower pneumatic connectors. In the cavity formed by the upper cover with an air passage and the base with an air passage, a connecting strip support plate, a signal connecting strip, a needle bushing, a probe, a copper metal block, and a guide frame with a through slot are stacked from bottom to top. The chip to be tested is placed on the end face of the copper metal block. The probe passes through the copper metal block and abuts against the chip to be tested. The needle bushing is located on one end face of the probe and abuts against the signal connecting strip.

[0008] In this technical solution, the KGD test socket further includes a temperature sensor mounting hole disposed on one side of the base with air passage, and a temperature sensor mounted on the base with air passage through the temperature sensor mounting hole.

[0009] In this technical solution, the KGD test socket further includes a first cross screw for fixing the metal copper block and the guide frame with through groove, a second cross screw for fixing the base with air passage and the metal copper block, a pin set in the connecting surface of the base with air passage and the metal copper block, and a cylindrical pin and a first internal hex screw for fixing the top cover with air passage and the base with air passage.

[0010] In this technical solution, the KGD test socket further includes second internal hex screws disposed at the four corners of the base with air passage, and bushings disposed on the second internal hex screws.

[0011] In this technical solution, the KGD test socket also includes a set screw disposed on the side of the base with air passage and abutting against the temperature sensor.

[0012] In this technical solution, the KGD test socket also includes a sealing ring disposed on the side of the cover with the air passage.

[0013] Compared with the prior art, the advantages of the KGD test socket of this utility model are as follows: 1. The overall structure is integrated and designed for quick disassembly, while the installation is simple, maintenance is convenient, and the cost is low; 2. The frame components that make up the support block are made of aluminum alloy, and the splicing of the support block supports quick replacement, balancing weight reduction and strength. In addition, it is lightweight, has good corrosion resistance, and moderate cost. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments 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.

[0015] Figure 1 This is a schematic diagram of the split structure of the KGD test socket of this utility model;

[0016] The numbers in the diagram are as follows: 1-Sealing ring, 2-Cylindrical pin, 3-First internal hex screw, 4-Upper cover with air passage, 5-Upper pneumatic connector, 6-First Phillips screw, 7-Guide frame with through groove, 8-Signal connecting strip, 9-Connecting strip support plate, 10-Bushing, 11-Metallic copper block, 12-Pin bushing, 13-Temperature sensor, 14-Setting screw, 15-Second Phillips screw, 16-Second internal hex screw, 17-Lower pneumatic connector, 18-Pin, 19-Probe, 20-Base with air passage, 21-Temperature sensor mounting hole, 22-Chip to be tested. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0018] In the description of this utility model, it should be noted that the terms "top," "bottom," "one side," "the other side," "front," "back," "middle part," "inner," "top," and "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "joined" 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 mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] Example

[0020] like Figure 1 The KGD test socket shown includes a cover 4 with an air passage and a base 20 with an air passage.

[0021] The upper cover with air passage 4 and the base with air passage 20 are each connected to a set of upper pneumatic connectors 5 and lower pneumatic connectors 17.

[0022] The cavity formed by the airway cover 4 and the airway base 20 is stacked from bottom to top with the connecting strip support plate 9, the signal connecting strip 8, the needle bushing 12, the probe 19, the metal copper block 11 and the guide frame with through groove 7.

[0023] The test chip 22 is placed on the end face of the copper block 11. The probe 19 passes through the copper block 11 and abuts against the test chip 22. The probe bushing 12 is located on one end face of the probe 19 and abuts against the signal connection strip 8.

[0024] In addition, the preferred KGD test socket also includes a temperature sensor mounting hole 21 disposed on one side of the air duct base 20, and a temperature sensor 13 (thermocouple) mounted on the air duct base 20 through the temperature sensor mounting hole 21. The monitoring system detects the real-time temperature of the test socket during KGD testing through the temperature sensor 13 (thermocouple), that is, the temperature sensor 13 (thermocouple) senses temperature changes.

[0025] In addition, the preferred KGD test socket also includes a first cross screw 6 for fixing the metal copper block 11 and the guide frame with through groove 7, a second cross screw 15 for fixing the air duct base 20 and the metal copper block 11, a pin 18 disposed in the connecting surface of the air duct base 20 and the metal copper block 11, and a cylindrical pin 2 and a first internal hex screw 3 for fixing the air duct top cover 4 and the air duct base 20. The above realizes the integration and quick disassembly structure between the air duct base 20 and the metal copper block 11, and the integration and quick disassembly structure between the air duct top cover 4 and the air duct base 20.

[0026] In addition, the preferred KGD test socket also includes second hexagonal screws 16 disposed at the four corners of the air-channel base 20, and bushings 10 disposed on the second hexagonal screws 16. During assembly, the second hexagonal screws 16 and bushings 10 are used to securely fasten the air-channel base 20 to the testing workbench (not shown in the figure, which does not affect the disclosure of the technical solution of this application).

[0027] In addition, the preferred KGD test socket also includes a set screw 14 disposed on one side of the air-channel base 20 and abutting against the temperature sensor 13, for fixing the temperature sensor 13 in the air-channel base 20, preventing the temperature sensor 13 from shifting, and making it convenient and reliable to adjust the assembly position of the temperature sensor 13.

[0028] In addition, the preferred KGD test socket also includes a sealing ring 1 disposed on one side of the cover 4 with the air passage, to prevent gas leakage during temperature adjustment in the test chamber formed by the cover 4 with the air passage and the base 20 with the air passage through a set of upper pneumatic connectors 5 and lower pneumatic connectors 17, thus ensuring the airtightness during the test.

[0029] The KGD test socket of this structure includes an upper pneumatic connector 5 and a lower pneumatic connector 17 for connecting pneumatic pipelines to transmit compressed air or gas; the slotted guide frame 7, after assembly, is located inside the air-channel base 20 to prevent the air-channel base 20 from moving relative to the metal copper block 11, improving motion accuracy and reducing wear; the signal connecting strip 8 transmits electrical signals or data, is used to connect circuit modules, transmit current or signals, reduce wiring complexity, and improve reliability; the connecting strip support plate 9 fixes the signal connecting strip, prevents deformation or loosening, provides rigid support, disperses stress, enhances structural stability, and extends the life of the connecting strip; the metal copper block 11 conducts heat and electricity or serves as structural support, utilizing the high thermal and electrical conductivity of copper to transmit energy or signals, with high heat dissipation efficiency, corrosion resistance, and excellent conductivity; the needle bushing 12 protects the precision probe, reduces friction, improves accuracy, and reduces wear.

[0030] The working principle or structural principle of the KGD test socket of this structure:

[0031] (1) Insert the probe 19 into the metal copper block 11, while the needle bushing 12 at one end of the probe 19 abuts against the surface of the signal connection strip 8.

[0032] (2) The chip to be tested 22 can be placed on the end face of the metal copper block 11 through the air channel base 20 and the through slot guide frame 7.

[0033] It should be noted that, in this document, terms such as "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0034] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A KGD test socket, characterized in that: It includes an airway cover (4) and an airway base (20). The airway cover (4) and the airway base (20) are respectively connected to an upper pneumatic connector (5) and a lower pneumatic connector (17). The cavity formed by the airway cover (4) and the airway base (20) is stacked from bottom to top with a connecting strip support plate (9), a signal connecting strip (8), a needle bushing (12), a probe (19), a metal copper block (11), and a guide frame with a through groove (7). The test chip (22) is placed on the end face of the copper block (11), and the probe (19) passes through the copper block (11) and comes into contact with the test chip (22). The needle bushing (12) is located on one end face of the probe (19) and comes into contact with the signal connection strip (8).

2. The KGD test socket according to claim 1, characterized in that: The KGD test socket also includes a temperature sensor mounting hole (21) located on one side of the air duct base (20), and a temperature sensor (13) mounted on the air duct base (20) through the temperature sensor mounting hole (21).

3. The KGD test socket according to claim 1 or 2, characterized in that: The KGD test socket also includes a first cross screw (6) for fixing the metal copper block (11) and the guide frame with through groove (7), a second cross screw (15) for fixing the air channel base (20) and the metal copper block (11), a pin (18) set in the connecting surface of the air channel base (20) and the metal copper block (11), and a cylindrical pin (2) and a first internal hex screw (3) for fixing the air channel cover (4) and the air channel base (20).

4. The KGD test socket according to claim 3, characterized in that: The KGD test socket also includes second internal hex screws (16) located at the four corners of the base (20) with air passage, and bushings (10) located on the second internal hex screws (16).

5. The KGD test socket according to claim 2, characterized in that: The KGD test socket also includes a set screw (14) disposed on one side of the gas duct base (20) and abutting against the temperature sensor (13).

6. The KGD test socket according to claim 3, characterized in that: The KGD test socket also includes a sealing ring (1) disposed on one side of the cover with air passage (4).

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