COS back surface inspection clamp

The COS back-side inspection fixture using vacuum adsorption solves the problem of easy damage during COS back-side inspection, achieving convenient operation and efficient inspection.

CN223466196UActive Publication Date: 2025-10-24HUACHEN XINGUANG (WUXI) SEMICONDUCTOR CO LTD
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Patent Information

Application Number
CN202423035213.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-10
Publication Date
2025-10-24
Estimated Expiration
2034-12-10

AI Technical Summary

Technical Problem

In the prior art, when inspecting the back of a COS, it is necessary to use tools to place the COS upside down on a testing table, which can easily damage the COS and is difficult to clamp.

Method used

The COS is attached to the pad by a vacuum adsorption method using a limiting frame and a pad. The suction hole generates suction to fix the COS in place, preventing it from falling off spontaneously, and only contacting the four corners of the front of the COS.

Benefits of technology

The COS is easy to operate and not prone to damage. The back of the COS is exposed for easy inspection, which improves inspection efficiency and protection effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a COS back surface inspection clamp, and relates to the technical field of COS inspection, the COS back surface inspection clamp comprises a panel, the panel is fixedly provided with a limiting frame for COS entry, the panel is fixedly provided with a plurality of cushion blocks in the limiting frame, the cushion blocks are provided with first air suction holes in a penetrating manner, the panel is provided with second air suction holes, and the second air suction holes directly face and are communicated with the first air suction holes. The number of the cushion blocks is four, and the four cushion blocks are located at the four corners in the limiting frame correspondingly. The COS is adsorbed on the cushion block through the adsorption effect of vacuumizing, the COS is prevented from falling off spontaneously, compared with a clamping mode, operation is more convenient, and the COS is not prone to being damaged; only four corners of the front surface of the COS are in contact with the corresponding square cushion blocks, so that the structure of the front surface of the COS is not easy to damage; and after the COS is sucked up, the back surface of the COS is exposed and is not shielded, so that the back surface of the COS can be conveniently inspected.
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Description

TECHNICAL FIELD

[0001] The application relates to the COS inspection technical field, in particular to a COS back inspection clamp. BACKGROUND

[0002] COS packaging (Chip On Submount) can help realize the high integration and miniaturization of chips, so that these mobile devices are more light and energy-saving. When COS is tested, a tool is needed to move the COS to the test platform.

[0003] The utility model discloses a COS test carrier carrier disc, including base frame, COS test carrier disc and COS test carrier body, the base frame is cross-shaped structure arrangement, the upper end surface edge line of base frame is round angle structure design, COS test carrier disc is provided with two groups, two groups COS test carrier disc is arranged on the both sides of the outer surface of base frame, and COS test carrier disc is fixedly connected with the base frame, and the inner surface of COS test carrier body is placed with the substrate chip. The upper end surface of COS test carrier disc is provided with a plurality of carrier clamping grooves for placing and fixing COS test carrier body, the carrier clamping grooves are arranged at equal intervals for arranging and placing a plurality of COS test carrier bodies, and the COS test carrier body is slidably arranged on the inner surface of the carrier clamping groove.

[0004] For the related technology in the above, the inventor considers that when the COS is inspected on the back, a tool (such as a clamp or tweezers) is needed to place the COS upside down on the designated position of the detection table, which is easy to damage the COS, and it is also not easy to clamp the COS due to the small size of the COS. Utility model content

[0005] The application provides a COS back inspection clamp, which moves the COS by vacuum adsorption, is more convenient to operate than the clamping mode, and is not easy to damage the COS.

[0006] The COS back inspection clamp provided by the application adopts the following technical scheme:

[0007] A COS back inspection clamp, comprising a panel, a limiting frame for the COS to enter is fixed on the panel, a plurality of pads are fixed in the limiting frame on the panel, a suction hole one is formed through the pad, a suction hole two is arranged on the panel, and the suction hole two is opposite to and communicates with the suction hole one.

[0008] By adopting the technical scheme, the limiting frame is sleeved outside the COS, the front face of the COS is in contact with the cushion block, the suction holes on the front face of the cushion block generate suction force through the communication effect of vacuumizing, the COS is adsorbed on the cushion block, spontaneous falling of the COS is avoided, compared with the clamping mode, the COS is more convenient to operate, and the COS is not easy to be damaged. After the COS is sucked up, the back face of the COS is exposed, so that the back face of the COS is convenient to inspect and operate.

[0009] Optionally, the cushion block is provided with four, and the four cushion blocks are respectively located at four corners in the limiting frame.

[0010] By adopting the technical scheme, only the four corners of the front face of the COS are in contact with the corresponding square cushion block, and the structure of the front face of the COS is not easy to be damaged.

[0011] Optionally, the height of the convex panel of the cushion block is lower than the height of the convex panel of the limiting frame.

[0012] By adopting the technical scheme, the limiting frame always maintains the limiting effect on the four peripheral side walls of the COS.

[0013] Optionally, the side, away from the cushion block, of the panel is provided with a back plate, the side, toward the panel, of the back plate is provided with a communication cavity, all the suction holes two are in communication with the communication cavity, the side, away from the panel, of the back plate is provided with a gas pipe joint, and the gas pipe joint is in communication with the communication cavity.

[0014] By adopting the technical scheme, all the suction holes two are communicated to the communication cavity through the back plate, and the vacuum source is convenient to be further communicated.

[0015] Optionally, the gas pipe joint is a quick connector.

[0016] By adopting the technical scheme, the quick connector is convenient for plugging and unplugging of the gas pipe.

[0017] Optionally, the side wall of the panel is provided with a clamping groove, the side wall of the back plate is fixedly provided with a clamping block, and the clamping block is clamped with the clamping groove.

[0018] By adopting the technical scheme, the clamping block is clamped with the clamping groove, the panel and the back plate are convenient to assemble, and the panel and the back plate can be separated.

[0019] Optionally, a sealing ring is arranged between the back plate and the panel, and the sealing ring is located at the periphery of the communication cavity.

[0020] By adopting the technical scheme, the sealing effect between the back plate and the panel is strengthened through the sealing ring, and air leakage is avoided.

[0021] Optionally, the front face of the limiting frame is provided with a buckling groove, and the buckling groove is in communication with the inner side wall of the limiting frame.

[0022] By adopting the above technical scheme, after the vacuum source is disconnected, the COS may still be attached to the surface of the cushion block, at which time the thin rod is inserted into the buckle groove, and the COS is taken out of the limiting frame through the end of the thin rod.

[0023] To sum up, the present application includes at least one of the following beneficial technical effects:

[0024] 1. By the adsorption effect of vacuumizing, the COS is adsorbed on the cushion block, avoiding spontaneous falling of the COS, which is more convenient to operate than the clamping mode and is not easy to damage the COS.

[0025] 2. Only the four corners of the front surface of the COS are in contact with the corresponding square cushion block, so the structure of the front surface of the COS is not easy to be damaged.

[0026] 3. After the COS is sucked up, the back surface of the COS is exposed and there is no obstruction, so that the back surface of the COS is convenient to inspect. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a perspective view of a COS back surface inspection clamp of an embodiment;

[0028] Figure 2 is a top view of an embodiment;

[0029] Figure 3 is an exploded view of an embodiment.

[0030] Explanation of reference signs: 1, panel; 2, limiting frame; 3, cushion block; 31, air suction hole one; 11, air suction hole two; 4, back plate; 41, communication cavity; 42, air pipe joint; 21, buckle groove; 12, clamping groove; 43, clamping block; 44, sealing ring. DETAILED DESCRIPTION

[0031] The present application will be further described in detail below with reference to the accompanying drawings.

[0032] Reference Figure 1 The present embodiment discloses a COS back surface inspection clamp, which comprises a panel 1, the panel 1 is fixed with a limiting frame 2 for the COS to enter, the panel 1 and the limiting frame 2 are both rectangular, the inner wall size of the limiting frame 2 is matched with the outer wall size of the COS, which plays a positioning effect, and a plurality of cushion blocks 3 are fixed in the limiting frame 2 on the panel 1.

[0033] The four cushion blocks 3 are respectively arranged at four corners in the limiting frame 2, and the four cushion blocks 3 stably support the four corners of the COS. The height of the cushion block 3 protruding from the panel 1 is lower than the height of the limiting frame 2 protruding from the panel 1, so that the limiting frame 2 always limits the side walls of the COS. The middle part of the front surface of the COS has a protruding structure, and the positions except the cushion blocks 3 in the limiting frame 2 are empty, so that the protruding structure of the front surface of the COS can enter the empty positions and avoid pressing the front surface structure of the COS and damaging the COS.

[0034] With reference to Figure 1 and Figure 2 , the air suction hole one 31 is arranged on the cushion block 3, the air suction hole two 11 is arranged on the panel 1, and the air suction hole two 11 is opposite to and communicates with the air suction hole one 31. The back plate 4 is arranged on the side of the panel 1 away from the cushion block 3, and the communicating cavity 41 is arranged on the side of the back plate 4 facing the panel 1. All the air suction hole two 11s communicate with the communicating cavity 41. The air pipe joint 42 is arranged on the side of the back plate 4 away from the panel 1, and the air pipe joint 42 communicates with the communicating cavity 41. The air pipe joint 42 is a quick connector. After the vacuum source is connected through the air pipe joint 42, the air on the front surface of the cushion block 3 is sequentially sucked away through the air suction hole one 31, the air suction hole two 11, the communicating cavity 41 and the air pipe joint 42, so as to achieve the vacuum adsorption fixing effect on the COS on the front surface of the cushion block 3.

[0035] With reference to Figure 1 , the front surface of the limiting frame 2 is provided with the buckle groove 21, and the buckle groove 21 communicates with the inner side wall of the limiting frame 2. After the vacuum source is disconnected, the COS may still be attached to the surface of the cushion block 3. At this time, the COS can be taken out of the limiting frame 2 by inserting the thin rod into the buckle groove 21 and taking the COS out through the end of the thin rod.

[0036] With reference to Figure 3 , the side wall of the panel 1 is provided with the clamping groove 12, and the clamping groove 12 is arranged on the left and right sides of the panel 1. The side wall of the back plate 4 is fixedly provided with the clamping block 43, and the clamping block 43 is a wedge-shaped block. The clamping block 43 is arranged on the left and right sides of the back plate 4. The clamping block 43 is clamped with the clamping groove 12. The clamping block 43 and the clamping groove 12 are clamped, which facilitates the assembly of the panel 1 and the back plate 4, and the panel 1 and the back plate 4 can be separated.

[0037] With reference to Figure 2 and Figure 3 , the sealing ring 44 is arranged between the back plate 4 and the panel 1, and the sealing ring 44 is arranged on the periphery of the communicating cavity 41. The sealing ring 44 strengthens the sealing effect between the back plate 4 and the panel 1, so as to avoid air leakage. When the panel 1 and the back plate 4 are clamped through the clamping groove 12 and the clamping block 43, the sealing ring 44 is compressed to ensure the sealing.

[0038] The implementation principle of the COS back face inspection clamp of the embodiment of the present application is that the limiting frame 2 is sleeved on the COS, only the four corners of the front face of the COS are in contact with the corresponding square pad 3, and the structure of the front face of the COS is not easy to be damaged. Through the communication effect of vacuumizing, the suction hole 31 on the front face of the pad 3 generates suction force, the COS is adsorbed on the pad 3, and the COS is prevented from falling spontaneously. Compared with the clamping mode, the operation is more convenient, and the COS is not easy to be damaged. After the COS is adsorbed, the back face of the COS is exposed, so that the back face of the COS is convenient for inspection operation.

[0039] The above are preferred embodiments of the present application, and do not limit the protection scope of the present application, so that: equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A COS backside inspection fixture, characterized by: The utility model provides a COS air suction device, including panel (1), the panel (1) is fixed with the limiting frame (2) of COS entry, a plurality of cushion block (3) are fixed in the limiting frame (2) on the panel (1), the air suction hole one (31) is passed through and is set up on the cushion block (3), the air suction hole two (11) is equipped with on the panel (1), the air suction hole two (11) is opposite and communicates air suction hole one (31).

2. A COS backside inspection clamp as claimed in claim 1, characterized in that: The cushion block (3) is equipped with four, four the cushion block (3) is located at the four corners in the limiting frame (2) respectively.

3. The COS backside inspection clamp of claim 1, wherein: The height of the cushion block (3) that projects panel (1) is lower than the height of the limiting frame (2) that projects panel (1).

4. The COS backside inspection clamp of claim 1, wherein: The side of panel (1) away from cushion block (3) is installed with backboard (4), the side of backboard (4) towards panel (1) is equipped with the communicating chamber (41), all air suction hole two (11) all communicate with communicating chamber (41), the side of backboard (4) away from panel (1) is equipped with air pipe joint (42), air pipe joint (42) communicates with communicating chamber (41).

5. A COS backside inspection clamp as claimed in claim 4, characterized in that: The air pipe joint (42) is quick connector.

6. A COS backside inspection fixture as claimed in claim 4, wherein: The side wall of panel (1) is equipped with the clamping groove (12), the side wall of backboard (4) is fixed with the clamping block (43), the clamping block (43) is connected with the clamping groove (12).

7. A COS backside inspection fixture as claimed in claim 6, characterized in that: The sealing ring (44) is located between backboard (4) and panel (1), and the sealing ring (44) is located on the periphery of the communicating chamber (41).

8. The COS backside inspection clamp of claim 1, wherein: The front of the limiting frame (2) is equipped with the buckle groove (21), and the buckle groove (21) communicates with the inner side wall of the limiting frame (2).

Citation Information

Patent Citations

  • COS test carrier

    CN221007791U