Manual test tool for packaging device

Abstract

The utility model discloses a manual test tool for a packaging device, which comprises a test tool main body and a pressure monitoring assembly additionally arranged in the test tool main body, the pressure monitoring assembly comprises a pressure sensor assembled at the pressing force application part of the testing tool main body and a display in signal connection with the pressure sensor. The pressure sensor is additionally arranged to monitor the pressing force of the to-be-tested packaging device in real time, and the display is connected to feed back monitoring data in real time, so that scientific guidance can be provided for implementation of pressing behaviors of engineers, accurate force application to the to-be-tested packaging device is realized, good contact between the to-be-tested packaging device and a test circuit is ensured, and the test efficiency is improved. Therefore, the accuracy of test data is ensured, and the damage to a packaging device, a switching device, a test circuit and the like is avoided. The device is suitable for being used in performance evaluation and function verification of the packaging device, and can help engineers to carry out tests in production and research and development stages so as to ensure that the packaging device accords with design specifications and quality standards.

Description

Technical Field

[0001] The utility model relates to a device used for performance evaluation and function verification of a packaged device, in particular to a manual testing tool for the packaged device. Background Art

[0002] Packaged device test fixtures are specialized equipment or tools used to evaluate and verify the performance and functionality of electronic packages. These tools help engineers conduct tests during production and R&D to ensure that packaged devices meet design specifications and quality standards.

[0003] Because traditional test fixtures require engineers to manually press the components, they often experience insufficient, excessive, or uneven pressure. Insufficient pressure can cause poor contact between the packaged device under test and the underlying adapter, resulting in inaccurate test data. Excessive pressure can damage the packaged device under test, the adapter, and the test circuitry of the test fixture. Generally, the pin contact surfaces of the packaged device under test are designed to be parallel to the adapter. Uneven pressure, resulting in excessive pressure on one portion of the packaged device under test and insufficient pressure on another, can lead to both poor contact and mechanical damage.

[0004] To solve the problem of pressing force, mechanical limiters are currently used. That is, mechanical limits are added to traditional test fixtures to limit the pressing stroke in order to accurately apply pressure to the packaged device under test. However, the actual effect is not ideal, because the debugging of the mechanical limiter is aimed at a brand new adapter. As the adapter is used more and more times, the adapter will produce mechanical deformation and varying degrees of wear. At this time, using the mechanical limit position determined in the early debugging will cause poor contact between the packaged device under test and the adapter. Utility Model Content

[0005] The utility model provides a manual testing tool for packaged devices, aiming to solve the problems of inaccurate test data and damage to the adapter, test circuit and packaged device to be tested caused by uneven, excessive or insufficient pressing force in traditional testing tools.

[0006] To achieve the above-mentioned object, the technical solution adopted by the present invention is as follows: a manual test fixture for packaging devices, comprising a test fixture body, and also comprising a pressure monitoring component installed in the test fixture body;

[0007] The pressure monitoring component includes a pressure sensor mounted on the pressing force application part of the test fixture body and a display connected to the pressure sensor signal.

[0008] As a limitation of the present invention, the pressure sensor and the display are connected by plugging.

[0009] As a further limitation of the present invention, a signal transmission line with a shielding effect is used between the pressure sensor and the display.

[0010] As another limitation of the present invention, the test fixture body includes a base, a test circuit board fixed to the base, an adapter for electrically connecting the packaged device to be tested with the test circuit in the test circuit board, and a pressing cover mounted above the base for pressing the packaged device to be tested to ensure good contact between the packaged device to be tested and the adapter;

[0011] The pressure sensor is assembled at the force-applying portion of the pressing cover and serves as the force-applying end of the pressing cover in contact with the packaged device to be tested.

[0012] As a further limitation of the present invention, it further includes a trapezoidal pressure block for placement between the pressure sensor and the packaged device to be tested.

[0013] As a further definition of the present invention, the pressing cover includes a lower cover mounted on the base and an upper cover hinged to the lower cover, wherein a through hole is provided in the middle of the lower cover, and a protrusion adapted to the through hole is provided in the middle of the upper cover;

[0014] After the upper cover is buckled onto the lower cover, the protrusion enters the through hole and is located above the packaged device to be tested;

[0015] The pressure sensor is mounted on the protrusion.

[0016] As a further limitation of the present invention, a window for observing the packaged device to be tested is provided at the center of the protrusion.

[0017] Due to the adoption of the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0018] (1) The utility model monitors the pressing force of the packaged device to be tested in real time by installing a pressure sensor, and connects a display to provide real-time feedback of the monitoring data. It can provide scientific guidance for engineers to implement the pressing behavior, achieve accurate force application on the packaged device to be tested, ensure good contact between the packaged device to be tested and the test circuit in the adapter and test circuit board, ensure the accuracy of the test data, and avoid damage to the packaged device to be tested and components such as the adapter and test circuit, thereby making up for the shortcomings of traditional test tooling in this regard.

[0019] (2) The display in the present invention adopts a plug-in design, which can be removed for storage when not in use. It can also be removed or replaced with a longer signal transmission line during high and low temperature environment testing, so that the display can be kept away from high and low temperature environments and have stronger adaptability.

[0020] (3) The transmission part between the pressure sensor and the display in the present invention adopts a signal shielding design (the signal transmission line has a shielding effect), which can prevent crosstalk with the signal of the packaged device to be tested and affect the accuracy of the test data.

[0021] (4) For micro-sized packaged devices, the present invention also compensates for the problem of no suitable sensor by adding a trapezoidal pressure block. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0023] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the utility model;

[0024] Figure 2 This is a schematic diagram of the overall structure of the push cover after the upper cover is opened in the embodiment of the utility model;

[0025] Figure 3 This is a structural diagram of another perspective of the embodiment of the utility model; wherein, Figure 3 a is a front view of the structural relationship of an embodiment of the utility model, Figure 3 b is Figure 3 Schematic diagram of the contact relationship between the pressure sensor indicated by C in a and the packaged device to be tested and the adapter;

[0026] Figure 4 This is a schematic diagram of the split structure of an embodiment of the utility model;

[0027] Figure 5 This is a schematic structural diagram of a pressing cover in an embodiment of the present utility model;

[0028] Figure 6 This is a side view of the structural relationship of the embodiment of the utility model after the trapezoidal pressing block is applied;

[0029] In the figure: 1. Base; 2. Test circuit board; 3. Adapter; 4. Press cover; 5. Pressure sensor; 6. Display; 7. Groove; 8. Through hole; 9. Lower cover; 10. Upper cover; 11. Through hole; 12. Protrusion; 13. Window; 14. Snap structure; 15. Trapezoidal pressure block; 16. Packaged device. DETAILED DESCRIPTION

[0030] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and understand the present invention and are not intended to limit the present invention.

[0031] This embodiment discloses a manual test tool for a packaged device 16. Through reasonable planning, a pressure sensor 5 is installed on the pressing cover 4 of the test tool body. During the pressing process, the pressing status of the packaged device 16 to be tested is monitored in real time, and a display 6 is connected to provide real-time feedback of the monitoring data. This can provide scientific guidance for engineers to implement the pressing behavior when performing performance evaluation and functional testing on the packaged device 16.

[0032] like Figures 1 to 4 As shown, this embodiment includes a test fixture body and a pressure monitoring component installed on the test fixture body.

[0033] 1. Test tool body

[0034] The test fixture body includes a base 1, a test circuit board 2, a switching device 3 and a pressing cover 4. The base 1 is used to achieve stable placement on the workbench, such as Figure 4 As shown, the base 1 in this embodiment is a rectangular structure with a groove 7 provided at the center; the test circuit board 2 is fixed on the base 1, with a through hole 8 corresponding to the groove 7 provided at the center, and a test circuit corresponding to the packaged device 16 to be tested is welded on the test circuit board 2; the adapter 3 is used to electrically connect the packaged device 16 to be tested with the test circuit, as shown in FIG. Figure 2 As shown, the adapter 3 is placed in the groove 7 at the center of the base 1, and extends to the upper surface of the test circuit board 2 through the central through hole 8 of the test circuit board 2, and contacts the test circuit soldered on the upper surface of the test circuit board 2 to form an electrical connection relationship. The adapter 3 in this embodiment is an existing structure, which can be a probe, an intermediate piece, a spring piece, etc.; the pressing cover 4 is mounted above the base 1, and is used to press the packaged device 16 to be tested stacked on the adapter 3, so that the packaged device 16 to be tested can be well contacted with the test circuit through the adapter 3.

[0035] It should be noted that, depending on actual conditions, the test circuit can also be set on the test circuit board 2 by non-soldering methods, such as crimping, PCB (printed circuit board), 3D printed circuit, etc.

[0036] Further, such as Figure 5As shown, the pressing cover 4 includes a lower cover 9 and an upper cover 10 hingedly connected to the lower cover 9. The upper cover 10 and the lower cover 9 can be circular, square, or other shapes. In this embodiment, both the upper cover 10 and the lower cover 9 are circular. Specifically, a through hole 11 is provided in the center of the lower cover 9. The four corners are bolted to the base 1. Bolts of different lengths can be used according to actual conditions to adjust the distance between the lower cover 9 and the base 1 (for example, shorter bolts are generally used to maintain a smaller distance between the lower cover 9 and the base 1; when using a trapezoidal pressure block 15 to test a micro-packaged device 16, longer bolts are required to ensure that the distance between the lower cover 9 and the base 1 is large enough to accommodate the trapezoidal pressure block 15). A protrusion 12 is provided in the center of the upper cover 10 to fit within the through hole 11 in the center of the lower cover 9. When the upper cover 10 is fastened to the lower cover 9, the protrusion 12 enters the through hole 11 and is located directly above the adapter 3. The protrusion 12 is a force-applying portion of the pressing cover 4 , and can also be said to be a force-applying portion of the test fixture body.

[0037] To facilitate observation of the packaged device 16 under test, a window 13 slightly smaller than the packaged device 16 under test is provided at the center of the protrusion 12 in this embodiment.

[0038] In this embodiment, a snap-fit ​​structure 14 is further provided between the lower cover 9 and the upper cover 10 to achieve locking of the upper cover 10 after it is snapped onto the lower cover 9 .

[0039] It should be noted that this embodiment only illustrates one specific structure of the test fixture body for ease of description and understanding of this embodiment, but does not limit the test fixture body to this specific structure. In fact, other structural forms of packaging fixtures used for testing packaged devices 16 in the prior art are also applicable to this embodiment.

[0040] 2. Pressure Monitoring Components

[0041] The pressure monitoring assembly includes a pressure sensor 5 and a display 6 connected to the pressure sensor 5 signal. Figure 2 and Figure 5 As shown, the pressure sensor 5 is mounted on the protrusion 12 of the upper cover 10 in the pressing cover 4, and can serve as the force-applying end of the pressing cover 4 to contact the packaged device 16 to be tested or the adapter 3, thereby monitoring the magnitude of the pressing force applied to the packaged device 16 to be tested. In this embodiment, there are multiple pressure sensors 5 distributed on the protrusion 12, specifically as shown in FIG. Figure 5 When pressing toward the packaged device 16 to be tested, the bottom ends of all the pressure sensors 5 contact different positions of the cover plate of the packaged device 16 to be tested and the adapter 3 respectively.

[0042] The display 6 is an all-in-one structure composed of a processor, a controller, a display screen, etc. It is a prior art and its structure will not be elaborated on here. In this embodiment, a signal transmission line with a shielding effect is used between the display 6 and the pressure sensor 5, and a plug-in connection is used between the display 6 and the pressure sensor 5, that is, a plug-in structure with a shielding effect is provided on the signal transmission line, such as an SMA connector. In order to improve the intuitiveness of the displayed data, a corresponding program can also be written in the display 6 so that the displayed data has a judgment function: abnormal data will be displayed in different colors, thereby reminding the engineer of the current status. To facilitate information collection, an information transmission module can also be integrated into the display 6 to transmit information to external devices via wired or wireless means for big data aggregation. The information transmission module can be a Si24R1 module integrated in the display 6 circuit board. (The display 6 circuit board refers to a circuit structure composed of a processor, a controller, etc.)

[0043] It should be supplemented that this embodiment also includes a trapezoidal pressing block 15. The trapezoidal pressing block 15 is used to solve the problem that there is no suitable pressure sensor 5 for the micro-miniature packaged device 16. Figure 6 As shown, when testing the micro-packaged device 16 , the trapezoidal pressing block 15 needs to be placed between the pressure sensor 5 and the packaged device 16 to be tested, so that the force applied by the pressure sensor 5 is transmitted to the packaged device 16 to be tested through the trapezoidal pressing block 15 .

[0044] When using this embodiment, the upper cover 10 of the pressing cover 4 is opened, and the packaged device 16 to be tested is placed in the central through hole 8 of the test circuit board 2. At this time, the packaged device 16 to be tested and the adapter device 3 are stacked up and down; then the upper cover 10 of the pressing cover 4 is fastened, and pressing force is applied through the upper cover 10. The transmission process of the pressing force is: upper cover 10 → protrusion 12 → pressure sensor 5 → (trapezoidal pressure block 15) → packaged device 16 to be tested and adapter device 3. During this period, the pressure sensor 5 monitors the size of the pressing force at various parts of the packaged device 16 to be tested in real time, and displays it to the engineer through the display 6. The engineer adjusts the way of applying pressing force to the upper cover 10 according to the result displayed on the display 6, so as to accurately apply force to the packaged device 16 to make the packaged device 16 to be tested in good contact with the test circuit through the adapter device 3 to complete the corresponding test.

[0045] It should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art may still modify the technical solutions described in the above embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A manual test tool for packaging devices, comprising a test tool body, characterized in that: Also included is a pressure monitoring assembly installed in the test fixture body; The pressure monitoring component includes a pressure sensor mounted on the pressing force application part of the test fixture body and a display connected to the pressure sensor signal.

2. A manual testing tool for packaged devices according to claim 1, characterized in that: The pressure sensor and the display are connected by plug-in.

3. The manual testing tool for packaged devices according to claim 2, characterized in that: A shielded signal transmission line is used between the pressure sensor and the display.

4. A manual testing tool for packaged devices according to any one of claims 1 to 3, characterized in that: The test fixture body includes a base, a test circuit board fixed on the base, an adapter for electrically connecting the packaged device to be tested with the test circuit in the test circuit board, and a pressing cover mounted above the base for pressing the packaged device to be tested so that the packaged device to be tested is in good contact with the adapter. The pressure sensor is assembled at the force-applying portion of the pressing cover and serves as the force-applying end of the pressing cover in contact with the packaged device to be tested.

5. The manual testing tool for packaged devices according to claim 4, characterized in that: Also included is a trapezoidal pressing block for placement between the pressure sensor and the packaged device to be tested.

6. The manual testing tool for packaged devices according to claim 4, characterized in that: The pressing cover includes a lower cover mounted on the base and an upper cover hinged on the lower cover, wherein a through hole is provided in the middle of the lower cover, and a protrusion adapted to the through hole is provided in the middle of the upper cover; After the upper cover is buckled onto the lower cover, the protrusion enters the through hole and is located above the packaged device to be tested; The pressure sensor is mounted on the protrusion.

7. The manual testing tool for packaged devices according to claim 6, characterized in that: A window for observing the packaged device to be tested is provided at the center of the protrusion.

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