Multi-station integrated circuit vibration testing device

Abstract

The invention belongs to the technical field of integrated circuit testing, and particularly relates to a multi-station integrated circuit vibration testing device. Comprising a device body and further comprises a plurality of steel jackets, and the steel jackets used for installing testing clamps of different specifications are distributed on the four side faces and the upper surface of the device body respectively. The center of the upper surface of the device body is provided with the cylindrical groove cavity used for placing a sensor; and the locking screw holes are circumferentially distributed in the outer side of the cylindrical groove cavity, and the multiple locking screw holes penetrating to the lower surface are formed in the upper surface of the device body and used for locking and fixing the device body to a vibration table. According to the invention, a plurality of standardized steel sleeves are densely arranged on the side surface and the upper surface of the device body, so that the device can be simultaneously provided with a plurality of clamps with different specifications, thereby supporting the synchronous vibration test of integrated circuits with various packaging forms.

Description

Technical Field

[0001] This invention belongs to the field of integrated circuit testing technology, and specifically relates to a multi-station integrated circuit vibration testing device. Background Technology

[0002] Integrated circuits (ICs) undergo a series of rigorous reliability tests before leaving the factory to ensure they can withstand harsh environments, especially mechanical vibration and shock, during transportation, installation, and use. Vibration testing is a crucial step in simulating these environments and verifying the robustness of the IC package and the reliability of the solder joints.

[0003] Currently, the common vibration testing method involves mounting the integrated circuit under test (DUT) onto a vibration table using a dedicated fixture. However, existing testing equipment typically suffers from the following limitations: poor versatility and low testing efficiency: a single fixture often only accommodates one or a few package types of integrated circuits. When testing chips with different packages, the entire fixture or test tooling must be frequently replaced, resulting in cumbersome operations, severely impacting testing efficiency, and failing to meet the needs of multi-variety, batch testing. Insufficient flexibility and poor scalability: traditional test tooling has a fixed structure with a limited number of pre-set mounting positions that cannot be changed. When testing requirements change, or when multiple chips need to be tested simultaneously, existing equipment struggles to flexibly adjust the layout and number of fixtures, exhibiting weak adaptability. Challenges in mounting accuracy and stability: the mounting accuracy of the fixture directly affects the accuracy of the test results. After multiple fixture replacements, existing equipment is prone to decreased positioning accuracy due to thread wear and other reasons, and the firmness of the fixture connection is also difficult to maintain consistently, potentially introducing unnecessary testing errors.

[0004] Therefore, there is an urgent need in this field for a testing device that can support rapid installation and replacement of multiple fixtures, has high flexibility and high-precision positioning capabilities, thereby significantly improving the efficiency and quality of vibration testing for integrated circuits. Summary of the Invention

[0005] The purpose of this invention is to provide a device for multi-station integrated circuit vibration testing. This invention can achieve rapid assembly and clamping, simple and smooth operation, simple device, and multi-station testing advantages, overcoming the problems of low testing efficiency and repetitive installation in existing devices.

[0006] To address the aforementioned technical problems, this invention provides a multi-station integrated circuit vibration testing device, comprising a device body and further comprising:

[0007] The device body has multiple steel sleeves on its four sides and top surface for mounting test fixtures of different specifications.

[0008] A cylindrical slot cavity is provided at the center of the upper surface of the device body for placing the sensor;

[0009] Locking screw holes are distributed circumferentially on the outside of the cylindrical groove cavity. Multiple locking screw holes extending from the upper surface of the device body to the lower surface are provided for locking and fixing the device body to the vibration table.

[0010] Preferably, the steel sleeve is an M6 internally threaded steel bushing with a hole depth of 20mm and a chamfer of 0.5×45° at the hole opening.

[0011] Preferably, each side of the device body is provided with 12 steel sleeves, and the upper surface of the device body is provided with 8 steel sleeves.

[0012] Preferably, it also includes press-in holes. The four sides and the top surface of the device body are respectively provided with a plurality of press-in holes corresponding to the steel sleeve. The steel sleeve is pressed into the press-in holes by interference fit.

[0013] Preferably, the device also includes weight-reducing grooves, and square-shaped weight-reducing grooves are provided in the middle of the four sides of the device body.

[0014] Preferably, the device also includes weight-reducing holes, and the lower surface of the device body has a plurality of circumferentially distributed, circular weight-reducing holes.

[0015] Preferably, it also includes fixing screw holes, two of which are symmetrically opened at the bottom of the inner cavity of the cylindrical groove, for locking and fixing the placed sensor.

[0016] Preferably, it also includes an alignment screw hole, which is opened at the center of the bottom of the inner cavity of the cylindrical groove and extends to the lower surface of the device body.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. This invention utilizes multiple standardized steel sleeves densely arranged on the sides and top surface of the device body. This allows for the simultaneous installation of various fixtures of different specifications, thus supporting synchronous vibration testing of integrated circuits with multiple package types. This significantly reduces downtime for fixture changes, substantially improves testing efficiency and equipment utilization, and perfectly meets the needs of multi-variety, batch testing.

[0019] 2. The steel sleeves on the overall surface of the device of this invention adopt a uniform specification (M6) but are distributed with multiple spacings, which gives the fixture installation position great flexibility. Users can freely choose the installation point according to the size of the integrated circuit under test and the test requirements, and quickly realize the layout adjustment and replacement of the fixture, so that a set of devices can cover a wider range of test product types and reduce tooling costs.

[0020] 3. This invention employs an interference fit press-fit steel sleeve, effectively avoiding the wear and stripping problems caused by repeated disassembly and assembly of traditional threaded holes, thus maintaining high thread accuracy and connection strength over a long period. This not only ensures repeatable positioning accuracy for each installation but also makes the fixture connection more robust and reliable, reducing testing errors caused by tooling loosening and guaranteeing the accuracy and consistency of vibration test data.

[0021] 4. The device body of this invention achieves effective lightweight design by setting weight-reducing holes and side grooves to form weight-reducing channels, while ensuring the overall structural strength. This not only reduces the labor intensity of operators, but also makes it easier to transport and integrate into automated testing production lines, improving the convenience of the entire testing system.

[0022] 5. The main body of the device of the present invention is designed with through alignment screw holes and locking screw holes for positioning and wiring, and is specially designed with fixing screw holes for fixing sensors. It integrates multiple functions such as positioning, wiring and sensor installation into one, with a compact structure, reducing dependence on external accessories and making the test system construction simpler and more standardized. Attached Figure Description

[0023] Figure 1 This is a front view of the structure of a multi-station integrated circuit vibration testing device provided by the present invention.

[0024] Figure 2 This is a top view of the structure of a multi-station integrated circuit vibration testing device provided by the present invention.

[0025] Figure 3 This is a top view of the structure of a multi-station integrated circuit vibration testing device provided by the present invention.

[0026] Figure 4 This is a structural cross-sectional view of a multi-station integrated circuit vibration testing device provided by the present invention.

[0027] In the figure: 1-device body, 2-steel sleeve, 3-cylindrical groove, 4-locking screw hole, 5-weight reduction groove, 6-weight reduction hole, 7-fixing screw hole, 8-alignment screw hole. Detailed Implementation

[0028] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become clearer from the following description. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the present invention.

[0029] like Figures 1-4 As shown, this embodiment of the invention specifically provides a multi-station integrated circuit vibration testing device, including a device body 1, which has a block structure, and further including:

[0030] Steel sleeves 2 are provided on the four sides and the top surface of the device body 1, and multiple steel sleeves 2 are provided for installing test fixtures of different specifications. In order to meet the testing requirements of multiple stations and multiple specifications, multiple M6 steel sleeves 2 are arranged on the top surface and four sides of the device body 1 to adapt to the installation of fixtures of different sizes.

[0031] A cylindrical slot 3 is provided at the center of the upper surface of the device body 1 for placing the sensor;

[0032] Locking screw holes 4 are distributed circumferentially on the outside of the cylindrical groove cavity 3. Multiple locking screw holes 4 extending from the upper surface of the device body 1 to the lower surface are provided for locking and fixing the device body 1 to the vibration table.

[0033] Steel sleeve 2 is an M6 internal thread steel bushing with a hole depth of 20mm and a chamfer of 0.5×45° at the hole opening to improve assembly accuracy and service life.

[0034] Each side of the device body 1 is provided with 12 steel sleeves 2, and the upper surface of the device body 1 is provided with 8 steel sleeves 2 to meet the vibration testing requirements of multiple clamps and multiple positions.

[0035] It also includes press-in holes. Multiple press-in holes corresponding to the steel sleeve 2 are opened on the four sides and the top surface of the device body 1. The steel sleeve 2 is pressed into the press-in holes by interference fit.

[0036] It also includes a weight reduction groove 5. A square weight reduction groove 5 is provided in the middle of the four sides of the device body 1 to further reduce the weight of the device and facilitate the loading and unloading of the device from the vibration table.

[0037] It also includes weight reduction holes 6, with 6 circularly distributed weight reduction holes 6 on the lower surface of the device body 1.

[0038] It also includes fixing screw holes 7. Two M6 fixing screw holes 7 are symmetrically opened at the bottom of the inner cavity of the cylindrical slot 3, which are used to lock and fix the placed sensor to ensure the stability of signal acquisition during the test. The sensor is an acceleration sensor. The acceleration sensor is locked in the cylindrical slot 3 on the device body 1 through the fixing screw holes 7, and the vibration of the device body 1 is detected.

[0039] It also includes an alignment screw hole 8, which is located at the center of the bottom of the cylindrical groove 3 and extends to the lower surface of the device body 1.

[0040] A further technical solution of this invention embodiment includes: the device body 1 is positioned and installed through alignment screw holes 8 and locking screw holes 4 on its upper and lower surfaces, with the alignment screw hole 8 in the middle improving positioning accuracy. Multiple steel sleeves 2 are distributed around the upper surface to enhance the flexibility of fixture installation. Each side of the device body 1 has 12 M6 bushings symmetrically distributed for installing fixtures of various sizes. The M6 ​​bushings are pressed into the device body 1 with an interference fit, ensuring a firm connection and stable positional accuracy. During fixture installation, screws are used to lock the M6 ​​bushings in place, enabling rapid changeover and multi-station synchronous testing.

[0041] Furthermore, each fixture corresponds to integrated circuits with different package types, and reliability testing is performed in conjunction with a vibration table, effectively improving testing efficiency and adaptability. The overall structure of the device is compact, making it easy to integrate into automated testing production lines.

[0042] To reduce overall weight and improve ease of operation, multiple weight-reducing holes 6 are provided on the lower surface of the device body 1. In terms of structural design, square weight-reducing grooves 5 are provided in the middle of the four sides of the device body 1, which helps to optimize structural strength and facilitates installation and disassembly.

[0043] The above description is merely a description of preferred embodiments of the present invention and is not intended to limit the scope of the present invention in any way. Any changes or modifications made by those skilled in the art based on the above disclosure shall fall within the protection scope of the claims.

Claims

1. A multi-station integrated circuit vibration testing apparatus comprising an apparatus body (1), characterized in that, Also include: Steel sleeve (2), the device body (1) of four sides and the upper surface are respectively arranged with a plurality of steel sleeves (2) for installing different specifications of test fixtures; Cylindrical cavity (3), the upper surface of the device body (1) is provided with a cylindrical cavity (3) for placing a sensor; Locking screw hole (4), the upper surface of the device body (1) is provided with a plurality of locking screw holes (4) penetrating to the lower surface, which are circumferentially distributed outside the cylindrical cavity (3), for locking and fixing the device body (1) on the vibration table.

2. A multi-site integrated circuit vibration testing apparatus as claimed in claim 1, wherein, The steel sleeve (2) is an M6 internal thread steel sleeve, the hole depth of the steel sleeve (2) is 20mm, and the orifice has a chamfer of 0.5×45°.

3. The multi-site integrated circuit vibration testing apparatus as claimed in claim 1, wherein Each side of the device body (1) is provided with 12 steel sleeves (2), and the upper surface of the device body (1) is provided with 8 steel sleeves (2).

4. A multi-site integrated circuit vibration testing apparatus as claimed in claim 3, wherein, Also include press-in hole, the four sides and the upper surface of the device body (1) are respectively provided with a plurality of press-in holes corresponding to the steel sleeve (2), and the steel sleeve (2) is pressed into the press-in hole through interference fit.

5. The multi-site integrated circuit vibration testing apparatus as claimed in claim 1, wherein Also include weight reduction groove (5), the middle part of the four sides of the device body (1) is provided with a square weight reduction groove (5).

6. The multi-site integrated circuit vibration testing apparatus as claimed in claim 1, wherein Also include weight reduction hole (6), the lower surface of the device body (1) is provided with a plurality of circumferentially distributed circular weight reduction holes (6).

7. The multi-site integrated circuit vibration testing apparatus as claimed in claim 1, wherein Also include fixing screw hole (7), two fixing screw holes (7) are symmetrically provided at the bottom of the inner cavity of the cylindrical cavity (3), for locking and fixing the placed sensor.

8. The multi-site integrated circuit vibration testing apparatus as claimed in claim 1, wherein Also include alignment screw hole (8), the alignment screw hole (8) is provided at the center of the bottom of the inner cavity of the cylindrical cavity (3) and penetrates to the lower surface of the device body (1).

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