Integrated circuit anti-interference test tool

Abstract

The utility model discloses an anti-interference test tool for an integrated circuit. The anti-interference test tool comprises a PCB adapter plate, a metal shielding cover, a threaded rod and a driving motor, the PCB adapter plate is provided with a plurality of chip pin bayonet sockets which are arranged in a matrix, and the chip pin bayonet sockets are used for being connected with a semiconductor chip packaged with an integrated circuit; the metal shielding cover is in threaded fit with the threaded rod, and the driving motor drives the threaded rod to rotate to drive the metal shielding cover to be close to the PCB adapter plate, so that the metal shielding cover covers the PCB adapter plate. According to the technical scheme of the utility model, the problems of low test efficiency and poor data reproducibility are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of anti-interference test tooling, in particular to an anti-interference test tooling for integrated circuits. Background Art

[0002] An integrated circuit (IC) is a circuit that integrates multiple electronic components onto a single semiconductor chip. It consists of basic components such as transistors, resistors, and capacitors, all of which are integrated into a single chip in a tiny form factor through sophisticated manufacturing processes. The development and design of ICs has significantly increased the density of electronic components, reduced power consumption, enhanced performance, and reduced size, leading to their widespread application in electronic devices. Existing ICs can be divided into two categories: analog and digital. Analog ICs process continuous signals, such as for amplification, filtering, and mixing; digital ICs process discrete signals, such as for calculation, storage, and control. In modern electronic devices, ICs have become an indispensable core component in a wide range of electronic products, such as mobile phones, computers, and televisions. However, in actual use, these electronic devices are subject to various interference and electromagnetic radiation, such as power supply fluctuations, electromagnetic radiation, and interference from wireless communications. Therefore, ensuring that ICs have good anti-interference performance is crucial for product reliability and stability.

[0003] Modern electronic products include numerous integrated circuits, such as processors, sensors, and communication chips. If these ICs lack effective anti-interference capabilities, they can lead to performance degradation, data loss, system crashes, communication interruptions, and other issues. Therefore, testing the anti-interference capabilities of integrated circuits helps ensure that products operate normally and stably in various operating environments. Furthermore, many countries and regions have established electromagnetic compatibility (EMC) requirements for electronic products, and products must meet these standards before they can be marketed. Therefore, testing the anti-interference capabilities of integrated circuits is also a crucial step in complying with relevant regulations and standards.

[0004] However, existing integrated circuit anti-interference test fixtures are mostly temporary assembled structures. When testing different test samples, the assembly is cumbersome, the test efficiency is low, and the data reproducibility is poor. Utility Model Content

[0005] The purpose of the utility model is to provide an integrated circuit anti-interference test tool to solve the problems of low test efficiency and poor data reproducibility.

[0006] To achieve this purpose, the present invention adopts the following technical solutions:

[0007] An integrated circuit anti-interference test fixture, comprising a PCB adapter plate, a metal shielding cover, a threaded rod, and a drive motor;

[0008] The PCB adapter board has a plurality of chip pin sockets arranged in a matrix, and the chip pin sockets are used to connect semiconductor chips encapsulated with integrated circuits; the metal shielding cover is threadedly engaged with the threaded rod, and the drive motor drives the threaded rod to rotate, thereby driving the metal shielding cover close to the PCB adapter board, so that the metal shielding cover covers the PCB adapter board.

[0009] In one embodiment, it also includes a first connector for connecting to a signal generator and a second connector for connecting to a signal collector, the first connector is connected to the PCB adapter board signal to generate various interference signals; the second connector is connected to the output end of the PCB adapter board.

[0010] In one embodiment, a circuit control box is further included, which is arranged on the side of the PCB adapter board away from the metal shielding cover and is signal-connected to the PCB adapter board; the first connector and the second connector are arranged on the surface of the circuit control box.

[0011] In one embodiment, a circuit adapter board is further included; the circuit adapter board is arranged between the PCB adapter board and the circuit control box; and the circuit control box is signal-connected to the PCB adapter board through the circuit adapter board.

[0012] In one embodiment, a connecting member is further included, wherein the connecting member is used to fix the distance between the PCB adapter board and the circuit adapter board;

[0013] The connecting member includes a limiting portion, a connecting portion and a clamping portion, and the clamping portion and the connecting portion are sequentially passed through the PCB adapter plate;

[0014] The circuit adapter board has a limiting hole. When the clamping portion passes through the limiting hole, the limiting portion contacts the outer surface of the PCB adapter board; rotating the limiting portion can enable the clamping portion to be limitedly engaged with the lower surface of the limiting hole.

[0015] In one embodiment, the connecting portion includes a first connecting position and a second connecting position, the first connecting position is close to the limiting portion, and the second connecting position is close to the clamping portion. The outer diameter of the first connecting position is R1, the outer diameter of the clamping portion is R2, and the outer diameter of the second connecting position is R3; wherein R1≥R2>R3.

[0016] In one embodiment, a spring is further included. The circuit adapter board is provided with a mounting seat at a position corresponding to the connecting member. The spring is provided on the mounting seat and sleeved on the outer periphery of the connecting portion.

[0017] In one embodiment, a movable sleeve is further included, and the movable sleeve is arranged above the mounting seat and located on the outer periphery of the spring.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] When testing semiconductor chips encapsulated with integrated circuits, the present invention first inserts or solders the semiconductor chip to be tested into a matrix of chip pin sockets. Because multiple chip pin sockets are provided, multiple semiconductor chips can be simultaneously mounted on a PCB adapter for simultaneous testing, thereby improving testing efficiency. Furthermore, when testing the semiconductor chip, a metal shield covers the PCB adapter, shielding it from external interference signals, preventing them from affecting test results and improving the data reproducibility of the integrated circuit anti-interference test tooling. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] The structures, proportions, sizes, etc. depicted in the drawings of this specification are only used to match the contents disclosed in this specification so as to facilitate understanding and reading by those familiar with this technology. They are not intended to limit the conditions under which the present invention can be implemented, and therefore have no substantive technical significance. Any structural modifications, changes in proportional relationships, or adjustments in size, without affecting the efficacy and objectives that can be achieved by the present invention, should still fall within the scope of the technical contents disclosed in the present invention.

[0022] Figure 1 This is a schematic structural diagram of an embodiment of the present utility model;

[0023] Figure 2 for Figure 1 The changing state diagram;

[0024] Figure 3 This is a structural diagram of an embodiment of a PCB adapter board in the present utility model;

[0025] Figure 4 A partial cross-sectional view of an embodiment of the present utility model;

[0026] Figure 5 for Figure 4 Structural diagram of another state;

[0027] Illustrations: 100, integrated circuit anti-interference test fixture; 110, PCB adapter board; 110a, chip pin sockets arranged in a matrix; 111, vias; 121, metal shielding cover; 122, threaded rod; 123, drive motor; 130, circuit control box; 131, first connector; 132, second connector; 133, third connector; 140, circuit adapter board; 141, limiting hole; 142, mounting base; 150, connector; 151, limiting portion; 152, connecting portion; 1521, first connecting position; 1522, second connecting position; 153, clamping portion; 154, screwing portion; 160, spring; 170, movable sleeve;

[0028] 20. Semiconductor chips packaged with integrated circuits; DETAILED DESCRIPTION

[0029] In order to make the technical objectives, features, and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0030] In the description of the present invention, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They are not intended to indicate or imply that the devices or elements referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. It should be noted that when a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centrally located component.

[0031] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0032] An embodiment of the present utility model provides an integrated circuit anti-interference testing tool 100.

[0033] See also Figure 1 、 Figure 2 and Figure 3 The integrated circuit anti-interference test fixture 100 includes a PCB adapter plate 110, a metal shielding cover 121, a threaded rod 122 and a drive motor 123;

[0034] The PCB adapter board 110 has a plurality of chip pin sockets 110a arranged in a matrix, and the chip pin sockets 110a arranged in a matrix are used to connect a semiconductor chip 20 encapsulating an integrated circuit (hereinafter referred to as a semiconductor chip); the metal shielding cover 121 is threadedly engaged with the threaded rod 122, and the drive motor 123 drives the threaded rod 122 to rotate, thereby driving the metal shielding cover 121 to approach the PCB adapter board 110, so that the metal shielding cover 121 covers the PCB adapter board 110.

[0035] It is understood that when testing a semiconductor chip 20 encapsulated with an integrated circuit, the technical solution of the present invention first inserts or solders the semiconductor chip to be tested into a chip pin socket 110a arranged in a matrix. Since multiple chip pin sockets are provided, multiple semiconductor chips can be simultaneously installed on the PCB adapter board 110 for synchronous testing, thereby improving test efficiency. Furthermore, when testing the semiconductor chip, the metal shield 121 covers the PCB adapter board 110, shielding external interference signals, preventing the influence of external signals on the test results, and improving the data reproducibility of the integrated circuit anti-interference test fixture 100.

[0036] Please continue reading Figure 1 In a specific embodiment, the integrated circuit anti-interference test fixture 100 also includes a first connector 131 for connecting to a signal generator and a second connector 132 for connecting to a signal collector. The first connector 131 is signal-connected to the PCB adapter board 110 to generate various interference signals, while the second connector 132 is connected to the output terminal of the PCB adapter board 110. It is understood that the signal generator is used to generate various interference signals to test the semiconductor chip's resistance to different types of interference. The signal collector is used to collect the chip's output signals to evaluate the semiconductor chip's anti-interference performance and operating performance. Specifically, the integrated circuit anti-interference test fixture 100 also includes a third connector 133 for providing power to the semiconductor chip to enable operation. It is also understood that to test the semiconductor chip, it is only necessary to connect the signal generator, signal collector, and power supply to the first, second, and third interfaces, respectively. This completes the entire test system.

[0037] Furthermore, if Figure 1 or Figure 2 As shown, the integrated circuit anti-interference test tool 100 also includes a circuit control box 130, which is arranged on the side of the PCB adapter board 110 away from the metal shielding cover 121 and is signal-connected to the PCB adapter board 110; the first connector 131 and the second connector 132 are arranged on the surface of the circuit control box 130.

[0038] See also Figure 1 In a preferred embodiment of the present invention, the integrated circuit anti-interference test tool 100 also includes a circuit adapter board 140; the circuit adapter board 140 is arranged between the PCB adapter board 110 and the circuit control box 130; and the circuit control box 130 is signal-connected to the PCB adapter board 110 through the circuit adapter board 140.

[0039] Specifically, in one embodiment, the PCB adapter board 110 is plugged into the circuit adapter board 140. The circuit adapter board 140 is provided with electronic components and plug pins for connecting to the PCB. The circuit adapter board 140 is plugged into the PCB adapter board 110 via the plug pins. It is understood that the plug pins are provided to form a stable signal connection relationship with the PCB adapter board 110.

[0040] Further, see Figure 1 、 Figure 4 as well as Figure 5 , the integrated circuit anti-interference test fixture 100 further includes a connector 150, and the connector 150 is used to fix the distance between the PCB adapter board 110 and the circuit adapter board 140;

[0041] The connector 150 includes a limiting portion 151, a connecting portion 152, and a clamping portion 153. The clamping portion 153 and the connecting portion 152 are sequentially passed through the PCB adapter plate 110.

[0042] The circuit adapter board 140 has a limiting hole 141. When the clamping portion 153 passes through the limiting hole 141, the limiting portion 151 contacts the outer surface of the PCB adapter board 110. Figure 5 As shown, rotating the limiting portion 151 can enable the clamping portion 153 to be in limiting engagement with the lower surface of the limiting hole 141 .

[0043] It is understood that the contact between the stopper 151 and the outer surface of the PCB adapter board 110, and the positioning of the clamping portion 153 and the positioning hole 141, ensures that the connection position between the circuit adapter board 140 and the PCB adapter board 110 is accurate, thereby avoiding poor contact and connection errors that could affect test results. Furthermore, by rotating the stopper 151, the positioning of the clamping portion 153 and the positioning hole 141 can be achieved, which facilitates assembly and disassembly, improving operational convenience and efficiency.

[0044] Please continue reading Figure 3 and Figure 4In a preferred embodiment, the connecting portion 152 includes a first connecting position 1521 and a second connecting position 1522, the first connecting position 1521 is close to the limiting portion 151, the second connecting position 1522 is close to the clamping portion 153, the outer diameter of the first connecting position 1521 is R1, the outer diameter of the clamping portion 153 is R2, and the outer diameter of the second connecting position 1522 is R3; wherein, R1≥R2>R3.

[0045] It is understood that the first connection position 1521 passes through the PCB adapter plate 110 and cooperates with the PCB adapter plate 110. If R1 ≥ R2 > R3, the shaking of the PCB adapter plate 110 relative to the connector 150 can be reduced. In addition, the circular via 111 on the PCB adapter plate 110 for the connector 150 to pass through facilitates the processing and manufacturing of the PCB adapter plate 110 and saves production costs.

[0046] Optionally, a screwing portion 154 is further provided on a side of the limiting portion 151 away from the connecting portion 152 , and the screwing portion 154 is used for gripping to facilitate rotation of the connecting member 150 .

[0047] Further, if Figure 4 and Figure 5 As shown, the integrated circuit anti-interference test fixture 100 also includes a spring 160. The circuit adapter board 140 is provided with a mounting seat 142 at a position corresponding to the connector 150. The spring 160 is provided on the mounting seat 142 and is sleeved on the outer periphery of the connector 152. It should be noted that the spring 160 is a compression spring 160. When the clamping portion 153 is engaged with the limiting hole 141, the spring 160 acts to keep the clamping portion 153 in contact with the circuit adapter board 140, thereby maintaining a relatively stable connection between the circuit adapter board 140 and the PCB adapter board 110. In addition, the provision of the spring 160 can cause the clamping portion 153 to actively disengage from the limiting hole 141 when the connector 150 is rotated, thereby achieving quick disassembly of the PCB adapter board 110.

[0048] Specifically, such as Figure 4 and Figure 5 As shown, the integrated circuit anti-interference test fixture 100 further includes a movable sleeve 170, which is sleeved above the mounting seat 142 and located on the outer periphery of the spring 160. It can be understood that the movable sleeve 170 is mainly provided to fix the spring 160.

[0049] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An integrated circuit anti-interference test tool, characterized in that: Includes PCB adapter plate, metal shield, threaded rod and drive motor; The PCB adapter board has a plurality of chip pin sockets arranged in a matrix, and the chip pin sockets are used to connect semiconductor chips encapsulated with integrated circuits; the metal shielding cover is threadedly engaged with the threaded rod, and the drive motor drives the threaded rod to rotate, thereby driving the metal shielding cover close to the PCB adapter board, so that the metal shielding cover covers the PCB adapter board.

2. The integrated circuit anti-interference test tool according to claim 1, characterized in that: It also includes a first connector for connecting to a signal generator and a second connector for connecting to a signal collector. The first connector is connected to the PCB adapter board signal to generate various interference signals; the second connector is connected to the output end of the PCB adapter board.

3. The integrated circuit anti-interference test tool according to claim 2, characterized in that: It also includes a circuit control box, which is arranged on the side of the PCB adapter board away from the metal shielding cover and is signal-connected to the PCB adapter board; the first connector and the second connector are arranged on the surface of the circuit control box.

4. The integrated circuit anti-interference test tool according to claim 3, characterized in that: It also includes a circuit adapter board; the circuit adapter board is arranged between the PCB adapter board and the circuit control box; and the circuit control box is signal-connected to the PCB adapter board through the circuit adapter board.

5. The integrated circuit anti-interference test tool according to claim 4, characterized in that: Also included is a connector, which is used to fix the distance between the PCB adapter board and the circuit adapter board; The connecting member includes a limiting portion, a connecting portion and a clamping portion, and the clamping portion and the connecting portion are sequentially passed through the PCB adapter plate; The circuit adapter board has a limiting hole. When the clamping portion passes through the limiting hole, the limiting portion contacts the outer surface of the PCB adapter board; rotating the limiting portion can enable the clamping portion to be limitedly engaged with the lower surface of the limiting hole.

6. The integrated circuit anti-interference test tool according to claim 5, characterized in that: The connecting portion includes a first connecting position and a second connecting position, the first connecting position is close to the limiting portion, and the second connecting position is close to the clamping portion. The outer diameter of the first connecting position is R1, the outer diameter of the clamping portion is R2, and the outer diameter of the second connecting position is R3; wherein R1≥R2>R3.

7. The integrated circuit anti-interference test tool according to claim 5, characterized in that: It also includes a spring. The circuit adapter board is provided with a mounting seat at a position corresponding to the connecting piece. The spring is arranged on the mounting seat and sleeved on the outer periphery of the connecting part.

8. The integrated circuit anti-interference test tool according to claim 7, characterized in that: It also includes a movable sleeve, which is arranged above the mounting seat and located on the outer periphery of the spring.

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