Ceramic circuit board fixing device for film drawing test

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By designing a ceramic circuit board fixing device for film pulling test, using the combination of the operating table and the air pump, the problem of frequent use of tape in the prior art is solved, and more efficient and reliable ceramic circuit board fixing and Test.

CN222461293UActive Publication Date: 2025-02-11SHANGHAI FUBIN ELECTRONICS CO LTD

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Patent Information

Application Number: CN202420246297.9
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2024-02-01
Publication Date: 2025-02-11
Estimated Expiration: 2034-02-01

AI Technical Summary

Technical Problem

In the prior art, it is necessary to use tape to paste ceramic circuit boards on the desktop. The tape needs to be re-adhesive during each inspection, which increases the difficulty of operation, is inefficient and wastes tape, and is not reliable.

Method used

A ceramic circuit board fixture for film testing is designed, including a operating table, air cavity, air holes and air pump pipes. By placing the ceramic circuit board on the operating table and vacuuming the air chamber through the air extraction pipe, the ceramic circuit board is adsorbed on the operating table, avoiding the need for tape.

Benefits of technology

It reduces the difficulty of operation during inspection, reduces the waste of tape, and improves the efficiency and reliability of inspection.

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Abstract

The utility model relates to a ceramic circuit board fixing device for a film drawing test, and relates to the technical field of ceramic circuit boards, the ceramic circuit board fixing device comprises an operation table, an air cavity is formed in the operation table, an air hole is formed in the operation table, one end of the air hole is communicated with the air cavity, and the other end of the air hole is communicated with the surface of the operation table; an air suction pipe is arranged on the operation table, one end of the air suction pipe communicates with the air cavity, and the other end of the air suction pipe extends towards the portion away from the operation table. When the film drawing test of the ceramic circuit board is carried out, the ceramic circuit board does not need to be fixed by using an adhesive tape, so that the operation difficulty during detection is reduced, and the waste of the adhesive tape is reduced.

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Description

Technical Field

[0001] The present application relates to the technical field of ceramic circuit boards, and in particular to a ceramic circuit board fixing device for film pulling testing. Background Art

[0002] Ceramic circuit board, also known as ceramic circuit board, ceramic substrate or ceramic copper clad board, is a PCD board with the same electrical interconnection as a circuit board and good electrical performance formed after covering copper foil on a ceramic substrate, drilling, etching circuits, and surface treatment. It is used in various fields of various industries.

[0003] During the process of ceramic circuit boards leaving the factory, testing the bonding strength of the surface coating of ceramic circuit boards is crucial to the performance and reliability of electronic devices and circuits. A poor coating on a ceramic circuit board may cause an electrical short circuit. The stability of the circuit depends on good insulation between the various parts of the circuit.

[0004] When inspecting the bonding strength between the coatings and the coatings on the ceramic circuit board, use tape to stick on the four sides of the ceramic substrate, and then press the tape tightly to fix the ceramic substrate on the table. Then use tape to stick on the coating surface of the ceramic circuit board, and smooth the tape several times to make the tape fit tightly with the coating surface, and then pull the tape off with force to see if the coating is pulled up by the tape.

[0005] With regard to the above-mentioned related technologies, it is currently necessary to use tape to stick the ceramic circuit board on the desktop. Each time the ceramic circuit board is tested, the tape needs to be re-sticked, which increases the difficulty of the test operation, is inefficient, wastes tape, and has poor reliability. Utility Model Content

[0006] The technical problem to be solved by the utility model is to provide a ceramic circuit board fixing device for film pulling test, which solves the technical problems of needing to use tape to stick the ceramic circuit board on the desktop, requiring the tape to be re-sticked each time the ceramic circuit board is tested, thereby increasing the difficulty of the test operation, resulting in low efficiency, waste of tape and poor reliability.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A ceramic circuit board fixing device for film pulling test includes an operating table, an air cavity is formed in the operating table, an air hole is opened on the operating table, one end of the air hole is connected to the air cavity, and the other end is connected to the surface of the operating table; an exhaust pipe is arranged on the operating table, one end of the exhaust pipe is connected to the air cavity, and the other end extends away from the operating table.

[0009] Through the above technical solution, the ceramic circuit board that needs to be tested for film pulling is placed on the side of the operating table close to the air hole, and then the air cavity is evacuated through the exhaust pipe. By evacuating the air cavity, when the ceramic circuit board is placed on the operating table, the ceramic circuit board will be adsorbed on the operating table. Therefore, when performing the film pulling test on the ceramic circuit board, there is no need to use tape to fix the ceramic circuit board, which reduces the difficulty of operation during detection and reduces the waste of tape.

[0010] Furthermore, a plurality of air holes are spaced apart on the operating table, and a placement surface is formed on a side of the operating table close to the air holes.

[0011] Through the above technical solution, the ceramic circuit board is placed on the placement surface of the operating table, and a plurality of air holes adsorb the ceramic circuit board on the placement surface of the operating table, thereby improving the stability of the ceramic circuit board on the operating table.

[0012] Furthermore, a support frame is provided on one side of the operating table close to the placement surface, and a support platform is provided on the inner side of the support frame.

[0013] Through the above technical solution, the four sides of the ceramic circuit board are placed on the support platform of the support frame, thereby improving the stability of the ceramic circuit board cup on the operating table.

[0014] Furthermore, the support block is a support platform provided with a rubber pad, and the rubber pad is connected to the support platform.

[0015] Through the above technical solution, when the ceramic circuit board is adsorbed on the support frame, the rubber pad is pressed tightly between the ceramic circuit board and the support frame, thereby improving the stability of the ceramic circuit board cup on the support table.

[0016] Furthermore, a guiding slope is formed on one side of the air hole close to the placement surface, and the guiding slope is inclined toward the inner side close to the air hole.

[0017] Through the above technical solution, the guiding slope increases the contact area between the air hole and the ceramic circuit board, thereby enabling the ceramic circuit board to be better adsorbed on the operating table.

[0018] Furthermore, a mounting plate is provided on the operating table, a connecting rod is provided on the mounting plate, the connecting rod is threadedly connected to the mounting plate, and a suction cup is provided at one end of the connecting rod, the suction cup faces the side away from the placement surface.

[0019] Through the above technical solution, when the ceramic circuit board is adsorbed on the operating table, the connecting rod is rotated to adsorb the suction cup at one end of the connecting rod on the table, thereby preventing the operating table from being separated from the table when performing a film pulling test.

[0020] Furthermore, a connector is formed on a side of the exhaust pipe away from the operating table, and an external thread is formed on the connector.

[0021] Through the above technical solution, one end of the external pipe is connected to the connector at one end of the exhaust pipe, so that the convenience of connecting the external pipe is improved.

[0022] In summary, the present application includes at least one of the following beneficial technical effects of a ceramic circuit board fixing device for film pulling test:

[0023] When in use, the ceramic circuit board that needs to be tested for film pulling is placed on the side of the operating table close to the air hole, and then the air cavity is evacuated through the exhaust pipe. By evacuating the air cavity, when the ceramic circuit board is placed on the operating table, the ceramic circuit board will be adsorbed on the operating table. Therefore, when performing the film pulling test on the ceramic circuit board, there is no need to use tape to fix the ceramic circuit board, which reduces the difficulty of operation during detection and reduces the waste of tape. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall structure of a ceramic circuit board fixing device for film pulling test, which is mainly embodied in this embodiment;

[0025] Figure 2 This is a cross-sectional view of the operating table structure mainly embodied in this embodiment;

[0026] Figure 3 yes Figure 1 Enlarged schematic diagram of local part A.

[0027] Figure numerals: 1. operating table; 11. air hole; 12. placement surface; 13. guide slope; 14. air cavity; 2. exhaust pipe; 21. connecting head; 22. external thread; 3. support frame; 31. support table; 32. rubber pad; 4. mounting plate; 41. connecting rod; 42. suction cup. DETAILED DESCRIPTION

[0028] In order to make the technical means, creative features, objectives and effects of the present invention easier to understand, the present invention is further described below in conjunction with specific embodiments.

[0029] The following is combined with Figure 1-3 This application is described in further detail.

[0030] The embodiment of the present application discloses a ceramic circuit board fixing device for film pulling test.

[0031] Reference Figure 1-Figure 2A ceramic circuit board fixing device for film pulling test includes an operating table 1, an air cavity 14 is formed in the operating table 1, and an air hole 11 is opened on the operating table 1, one end of the air hole 11 is connected to the air cavity 14, and the other end is connected to the outside of the operating table 1. In addition, an exhaust pipe 2 is provided on the operating table 1, one end of the exhaust pipe 2 is connected to the air cavity 14, and the other end extends to a side away from the operating table 1. When in use, the ceramic circuit board is placed on the side of the operating table 1 close to the air hole 11, and the air cavity 14 is evacuated through the exhaust pipe 2, and the air cavity 14 adsorbs the ceramic chip on the operating table 1 through the air hole 11.

[0032] The operating table 1 is in the shape of a rectangular parallelepiped as a whole, and the length direction of the operating table 1 is arranged horizontally. A plurality of air holes 11 are arranged at intervals on the operating table 1, and the axes of the plurality of air holes 11 are all in the same vertical direction as the operating table 1. In addition, one end of the plurality of air holes 11 is connected to the air cavity 14, and the other end is connected to the top surface of the operating table 1 in the vertical direction.

[0033] One end of the exhaust pipe 2 is connected to the lower side of the operating table 1 in the vertical direction, and the exhaust pipe 2 is communicated with the air cavity 14 , and the other end of the exhaust pipe 2 extends to a side away from the operating table 1 .

[0034] In addition, a connector 21 is provided at one end of the exhaust pipe 2 away from the operating table 1, and an external thread 22 is formed on the connector 21. When in use, one end of the external pipe is threadedly connected to the connector 21, and then the ceramic circuit board is placed on the side of the operating table 1 close to the air hole 11, and then the air is exhausted by the external exhaust device, and the exhaust pipe 2 evacuates the air cavity 14. As the gas in the air cavity 14 is continuously exhausted, since the air holes 11 are connected to the air cavity 14, and the ceramic circuit board covers the air holes 11, the ceramic circuit board is adsorbed on the operating table 1.

[0035] Furthermore, the top surface of the operating table 1 is formed with a placement surface 12, which is horizontally arranged. When in use, the ceramic circuit board is placed on the placement surface 12 of the operating table 1, and then the air cavity 14 is evacuated so that the ceramic circuit board is adsorbed on the operating table 1.

[0036] During use, dust easily accumulates on the placement surface 12 of the operating table 1. When the ceramic circuit board is placed on the placement surface 12 of the operating table 1, if there is dust between the ceramic circuit board and the operating table 1, gas easily flows through the gap between the ceramic circuit board and the operating table 1, thereby causing the ceramic circuit board to be unable to be adsorbed on the operating table 1.

[0037] Therefore, after the improvement, the designer arranged a support frame 3 on the side of the operating table 1 close to the placement surface 12, and the support frame 3 is a rectangular parallelepiped frame. In addition, two support frames 3 are arranged on the operating table 1 at intervals, one support frame 3 is located inside the other support frame 3, and both support frames 3 are fixed on the side of the operating table 1 close to the placement surface 12. When in use, ceramic circuit boards of different sizes are placed on the support frame 3, thereby reducing the contact between the ceramic circuit board and the placement surface 12, so that the ceramic circuit board can be adsorbed on the operating table 1.

[0038] Reference Figure 3 In addition, in order to further improve the stability of the ceramic circuit board on the support frame 3, a support platform 31 is formed on the inner side of the support frame 3, and the support platform 31 is stepped as a whole. Furthermore, a rubber pad 32 is provided on the support platform 31, and the rubber pad 32 is connected to the support platform 31 of the support frame 3. When in use, the four sides of the ceramic circuit board are placed on the support platform 31 of the support frame 3, and at this time, the rubber pad 32 is pressed tightly between the support frame 3 and the ceramic circuit board.

[0039] When the air cavity 14 is evacuated, the rubber pad 32 between the ceramic circuit board and the support frame 3 is compressed. At this time, even if there is dust between the rubber pad 32 and the ceramic circuit board, as the rubber pad 32 is compressed, the dust will be embedded in the rubber pad 32, thereby improving the sealing between the ceramic circuit board and the support frame 3, so that the ceramic circuit board can be adsorbed on the operating table 1.

[0040] When the ceramic circuit board is placed on the placement surface 12 of the operating table 1, in order to improve the stability of the ceramic circuit board being adsorbed on the operating table 1, a guide slope 13 is formed on the side of the air hole 11 close to the placement surface 12, and the guide slope 13 is inclined toward the inner side of the air hole 11. When the ceramic circuit board is covered on the air hole 11, the guide slope 13 increases the contact area between the air hole 11 and the ceramic circuit board, thereby enabling the ceramic circuit board to be adsorbed on the operating table 1.

[0041] When performing a film pulling test on a ceramic circuit board, there will be a certain pulling force on the surface of the ceramic circuit board. In order to prevent the operating table 1 from being pulled up from the desktop during the film pulling test, mounting plates 4 are provided on both sides of the length of the operating table 1. One end of the mounting plates 4 is connected to the operating table 1, and the other end extends to a side away from the operating table 1 in the horizontal direction.

[0042] In addition, a connecting rod 41 is provided on the mounting plate 4, one end of the connecting rod 41 passes through the mounting plate 4, and the connecting rod 41 is threadedly connected to the mounting plate 4. A suction cup 42 is provided at one end of the connecting rod 41 passing through the mounting plate 4, and the suction cup 42 faces the side away from the placement surface 12. When in use, the connecting rod 41 is rotated to adsorb the suction cup 42 at one end of the connecting rod 41 on the desktop. This prevents the operating table 1 from being separated from the desktop due to external force when the ceramic circuit board is undergoing a film pulling test.

[0043] The implementation principle of a ceramic circuit board fixing device for film pulling test in an embodiment of the present application is as follows: before use, rotate the connecting rod 41 to adsorb the suction cup 42 on one end of the connecting rod 41 on the desktop, and then use the pipeline of the external vacuum equipment to connect to the vacuum pipe 2. When in use, place the ceramic circuit board on the support table 31 of the support frame 3, and then the external vacuum equipment evacuates the air cavity 14 through the vacuum pipe 2. As the gas in the air cavity 14 decreases, the ceramic circuit board is pressed against the rubber pad 32. At this time, the rubber pad 32 is compressed. After the ceramic circuit board is fixed, a film pulling experiment of the ceramic circuit board is carried out.

[0044] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A ceramic circuit board fixing device for film drawing test, comprising an operating table (1), characterized in that: An air cavity (14) is formed in the operating table (1), and an air hole (11) is provided on the operating table (1), one end of the air hole (11) is connected to the air cavity (14), and the other end is connected to the surface of the operating table (1); an exhaust pipe (2) is provided on the operating table (1), one end of the exhaust pipe (2) is connected to the air cavity (14), and the other end extends to a point away from the operating table (1).

2. A ceramic circuit board fixing device for film drawing test according to claim 1, characterized in that: A plurality of air holes (11) are arranged at intervals on the operating table (1), and a placement surface (12) is formed on a side of the operating table (1) close to the air holes (11).

3. A ceramic circuit board fixing device for film drawing test according to claim 2, characterized in that: A support frame (3) is provided on one side of the operating table (1) close to the placement surface (12), and a support platform (31) is provided on the inner side of the support frame (3).

4. A ceramic circuit board fixing device for film drawing test according to claim 3, characterized in that: The support block is a support platform (31) on which a rubber pad (32) is arranged, and the rubber pad (32) is connected to the support platform (31).

5. A ceramic circuit board fixing device for film drawing test according to claim 2, characterized in that: A guiding inclined surface (13) is formed on one side of the air hole (11) close to the placement surface (12), and the guiding inclined surface (13) is inclined toward the inner side close to the air hole (11).

6. A ceramic circuit board fixing device for film drawing test according to claim 2, characterized in that: The operating table (1) is provided with a mounting plate (4), the mounting plate (4) is provided with a connecting rod (41), the connecting rod (41) is threadedly connected to the mounting plate (4), and a suction cup (42) is provided at one end of the connecting rod (41), the suction cup (42) faces the side away from the placement surface (12).

7. A ceramic circuit board fixing device for film drawing test according to claim 1, characterized in that: A connector (21) is formed on a side of the exhaust pipe (2) away from the operating table (1), and an external thread (22) is formed on the connector (21).