Jig for washing packaged product

By designing the step drainage port structure in the packaging product washing fixture, the problem of low washing quality of packaging products caused by flux residue is solved, and a more efficient cleaning effect is achieved.

CN119838990APending Publication Date: 2025-04-18DONGGUAN UNIONMEMORY INFORMATION SYST LTD
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Patent Information

Application Number
CN202510016746.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-01-06
Publication Date
2025-04-18

AI Technical Summary

Technical Problem

During semiconductor packaging, flux residues are difficult to completely remove, resulting in poor washing quality of the packaged product.

Method used

A fixture for encapsulating product washing is designed, including a plurality of rows of first drain outlets and a plurality of second drain outlets. The upper surface of the first drain outlet is higher than the upper surface of the second drain outlet to ensure that the cleaning agent can be discharged smoothly.

Benefits of technology

Through the step drainage design, cleaning agents are prevented from remaining on the surface of the packaging product, avoid secondary contamination, and significantly improve the cleaning quality of the packaging product.

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Abstract

The jig comprises a jig body, a containing groove is formed in the jig body, a plurality of rows of first water drainage openings and a plurality of second water drainage openings are formed in the bottom of the containing groove, and the upper surfaces of the first water drainage openings are higher than the upper surfaces of the second water drainage openings to form stepped fall. By means of the mode, the phenomenon of secondary pollution caused by the fact that the cleaning agent is left on the surface of the packaged product is prevented, and the cleaning quality of the packaged product is improved.
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Description

Technical Field

[0001] The invention relates to the technical field of water washing jigs, and in particular to a jig used for water washing of packaged products. Background Art

[0002] In the semiconductor packaging process, after SMT (Surface Mount Technology) and FC (Flip Chip) reflow soldering, a large amount of flux will remain on the surface of components and the bottom of FC. Before the subsequent Underfill dispensing, the flux needs to be removed to improve the overall reliability of the product. The industry mostly uses detergents and water to remove the flux. During the water washing process of the packaged product, the packaged product is placed in a carrier. Since the drainage ports of the carrier are all located at the bottom of the carrier, when the flux is dissolved by the detergent, it cannot be discharged smoothly from the bottom of the carrier, leaving the detergent on the surface of the packaged product, resulting in poor cleaning quality of the packaged product. Summary of the invention

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a jig for washing packaged products.

[0004] The present invention is achieved through the following technical solutions:

[0005] The present invention proposes a jig for washing packaged products, comprising: a jig body, a receiving groove provided on the jig body, a plurality of rows of first drain outlets and a plurality of second drain outlets provided at the bottom of the receiving groove, the upper surface of the first drain outlet being higher than the upper surface of the second drain outlet to form a step difference.

[0006] Furthermore, the side edge of the bottom of the accommodating groove is recessed downward to form a step, and a plurality of the second drainage ports are arranged on the step.

[0007] Furthermore, the distances between two adjacent second drainage outlets are equal.

[0008] Furthermore, a plurality of rows of the first drain ports are arranged in a linear array at the bottom of the receiving tank.

[0009] Furthermore, the opening directions of the first drain outlet and the second drain outlet are both toward the accommodating groove.

[0010] Furthermore, the fixture body includes a base plate and a cover plate, the surface of the base plate protrudes upward to form a carrier, and the receiving groove is provided on the carrier. When the surface of the cover plate is in contact with the surface of the carrier, the packaged product loaded into the receiving groove is limitedly loaded on the carrier.

[0011] Furthermore, the receiving groove is formed by a downward depression of the table surface of the carrier.

[0012] Furthermore, the cover plate is provided with a first opening and a second opening, and the first opening and the second opening are both communicated with the accommodating groove.

[0013] Furthermore, a first magnetic component is provided on a side of the base plate, and a second magnetic component is provided on the cover plate corresponding to the first magnetic component. When the first magnetic component is connected to the second magnetic component, the surface of the cover plate fits with the surface of the carrier.

[0014] Furthermore, the side edge of the carrier is recessed inward to form a space-avoiding groove, and the space-avoiding groove is used for taking and placing packaged products.

[0015] Beneficial effects of the present invention:

[0016] Compared with the prior art, the jig for washing packaged products proposed in the present invention has an upper surface of the first drain outlet that is higher than the upper surface of the second drain outlet to form a step difference, thereby preventing secondary contamination caused by residual cleaning agent on the surface of the packaged product and improving the cleaning quality of the packaged product.

[0017] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the following preferred embodiments are specifically cited and described in detail as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of a jig for washing packaged products proposed by the present invention;

[0019] Figure 2 This is a schematic diagram of the bottom plate structure of a jig for washing packaged products proposed by the present invention;

[0020] Figure 3 The present invention is a schematic diagram of a cover plate structure in a jig for water washing of packaged products.

[0021] Description of reference numerals:

[0022] 1. fixture body; 11. bottom plate; 12. carrier; 13. cover plate; 131. second magnetic member; 132. first opening; 133. second opening; 14. receiving groove; 15. first drainage outlet; 16. step; 17. second drainage outlet; 18. first magnetic member; 19. air avoidance groove. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments 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 those skilled in the art without creative work are within the scope of protection of the present invention.

[0025] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships described in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0026] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0027] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be connected, detachably connected, or integrated; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0029] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms should not be understood as necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification.

[0030] See also Figures 1 to 3 The present invention proposes a jig for washing packaged products, comprising: a jig body 1, a receiving groove 14 is provided on the jig body 1, a plurality of rows of first drain ports 15 and a plurality of second drain ports 17 are provided at the bottom of the receiving groove 14, and the upper surface of the first drain port 15 is higher than the upper surface of the second drain port 17 to form a step height difference.

[0031] In actual use, the packaged product is placed in the receiving groove 14 of the fixture body 1. Then, a cleaning agent is injected into the receiving groove 14. The cleaning agent will penetrate into every corner of the packaged product under the action of flow force, dissolve the soldering flux on its surface, and as the cleaning agent flows, the cleaning agent that has dissolved the soldering flux will be discharged first through the first drain port 15. For the cleaning agent that cannot be discharged directly through the first drain port 15, it will continue to flow to the second drain port 17 and be discharged through the second drain port 17.

[0032] In the jig for washing packaged products proposed in this embodiment, the upper surface of the first drain port 15 is higher than the upper surface of the second drain port 17 to form a step difference, thereby preventing secondary contamination caused by residual cleaning agent on the surface of the packaged product and improving the cleaning quality of the packaged product.

[0033] See also Figure 2 The side of the bottom of the accommodating groove 14 is recessed downward to form a step 16 , and a plurality of second drainage ports 17 are disposed on the step 16 .

[0034] Specifically, the side of the bottom of the receiving groove 14 is recessed downward to form a step 16, so that the cleaning agent that cannot be directly discharged through the first drain port 15 flows toward the step 16, so as to be discharged through the second drain port 17, and the step 16 is formed by the side of the bottom of the receiving groove being recessed downward, thereby avoiding the phenomenon of residual cleaning agent on the edge of the packaged product, thereby improving the cleaning quality of the packaged product.

[0035] Please refer again Figure 2 The spacing between two adjacent second drain ports 17 is equal, so that the cleaning agent can be quickly discharged from the receiving groove 14, avoiding the accumulation of the cleaning agent in certain areas, and improving the cleaning efficiency of the packaging substrate.

[0036] Please refer again Figure 2 A plurality of rows of first drainage ports 15 are arranged in a linear array at the bottom of the receiving groove 14 .

[0037] Specifically, the first drain ports 15 arranged in a linear array form a plurality of parallel drainage channels, so that the cleaning agent can flow rapidly toward the first drain ports 15 in a straight line under the action of gravity, thereby increasing the discharge speed of the cleaning agent and shortening the cleaning cycle of the packaged product. At the same time, the first drain ports 15 arranged in a linear array in multiple columns disperse the flow rate, reduce the burden on a single first drain port 15, and reduce the risk of blockage.

[0038] Please refer again Figure 2 The opening directions of the first drain port 15 and the second drain port 17 are both toward the receiving groove 14 .

[0039] Specifically, the opening directions of the first drain port 15 and the second drain port 17 are toward the receiving tank 14. When the cleaning agent naturally flows toward the receiving tank 14 under the action of gravity, it is directly guided to the first drain port 15 and the second drain port 17 instead of flowing along the tank wall of the receiving tank 14, thereby reducing the residence time of the cleaning agent in the receiving tank 14 and improving the cleaning efficiency of the packaging substrate.

[0040] See also Figure 1 to Figure 2 The fixture body 1 includes a bottom plate 11 and a cover plate 13. The surface of the bottom plate 11 protrudes upward to form a carrier 12. The receiving groove 14 is provided on the carrier 12. When the surface of the cover plate 13 is in contact with the surface of the carrier 12, the packaged product loaded into the receiving groove 14 is limitedly loaded on the carrier 12.

[0041] Specifically, the bottom plate 11 protrudes upward to form a carrier 12, and the overall structure of the fixture body 1 is more stable, which avoids the displacement of the packaged product due to external vibration, and improves the connection stability between the packaged product and the receiving groove 14 during the cleaning process. When cleaning the packaged product, the packaged product is fixed in the receiving groove 14 under the action of the cover plate 13 to prevent it from moving or turning over due to water flow impact or vibration of the fixture body 1, resulting in uneven cleaning or product damage.

[0042] See also Figure 2 The receiving groove 14 is formed by the table surface of the carrier 12 being recessed downward.

[0043] Specifically, the receiving groove 14 formed by the downward depression of the table surface of the carrier 12 increases the overall rigidity of the fixture body 1, reduces the displacement of the packaged product caused by external vibration, and improves the connection stability between the packaged product and the receiving groove 14 during the cleaning process.

[0044] See also Figure 3 The cover plate 13 is provided with a first opening 132 and a second opening 133 , and both the first opening 132 and the second opening 133 are communicated with the receiving groove 14 .

[0045] Specifically, after placing the packaged product in the receiving groove 14, the cover plate 13 is placed on the carrier 12 so that its plate surface is in contact with the table surface of the carrier 12 and the upper surface of the packaged product. The cleaning agent flows from the first opening 132 and the second opening 133 into the receiving groove 14 to dissolve the flux on the packaged product, allowing the operator to observe the cleaning process, thereby increasing the transparency and controllability of the cleaning and facilitating timely adjustments and problem solving.

[0046] See also Figure 2 A first magnetic component 18 is disposed on the side of the bottom plate 11 , and a second magnetic component 131 is disposed on the cover plate 13 corresponding to the first magnetic component 18 . When the first magnetic component 18 is connected to the second magnetic component 131 , the surface of the cover plate 13 is in contact with the surface of the carrier 12 .

[0047] Specifically, the magnetic force between the first magnetic member 18 and the second magnetic member 131 can adsorb the cover plate 13 onto the base plate 11, ensuring that the plate surface of the cover plate 13 is completely in contact with the surface of the carrier 12, so that the packaged product is fixed in the receiving groove 14 during the entire cleaning process, avoiding the movement or flipping of the packaged product, resulting in uneven cleaning or damage of the packaged product, thereby improving the cleaning quality of the packaged product.

[0048] Please refer again Figure 2 The side of the carrier 12 is recessed inward to form a space-avoiding groove 19, and the space-avoiding groove 19 is used for taking and placing packaged products.

[0049] Specifically, the air-avoiding groove 19 is used to facilitate the use of tools to separate the cover plate 13 from the fixture body 1 to take out the packaged product after the packaged product is cleaned.

[0050] Compared with the prior art, the jig for washing packaged products proposed in the present invention has an upper surface of the first drain port 15 that is higher than an upper surface of the second drain port 17 to form a step difference, thereby preventing secondary contamination caused by residual cleaning agent on the surface of the packaged product and improving the cleaning quality of the packaged product.

[0051] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A jig for washing packaged products, characterized in that: include: A fixture body is provided with a receiving groove, and a plurality of rows of first drain outlets and a plurality of second drain outlets are provided at the bottom of the receiving groove, and the upper surface of the first drain outlet is higher than the upper surface of the second drain outlet to form a step difference.

2. The jig for washing packaged products according to claim 1, characterized in that: The side edge of the bottom of the accommodating groove is recessed downward to form a step, and a plurality of the second drainage ports are arranged on the step.

3. The jig for washing packaged products according to claim 2, characterized in that: The distances between two adjacent second drainage openings are equal.

4. The jig for washing packaged products according to claim 1, characterized in that: A plurality of rows of the first drain ports are arranged in a linear array at the bottom of the receiving tank.

5. The jig for washing packaged products according to claim 1, characterized in that: The opening directions of the first drain port and the second drain port are both toward the accommodating groove.

6. The jig for washing packaged products according to claim 1, characterized in that: The fixture body includes a base plate and a cover plate, the surface of the base plate protrudes upward to form a carrier, and the receiving groove is arranged on the carrier. When the surface of the cover plate is in contact with the surface of the carrier, the packaged product loaded into the receiving groove is limitedly loaded on the carrier.

7. The jig for washing packaged products according to claim 6, characterized in that: The receiving groove is formed by the table surface of the carrier being recessed downward.

8. The jig for washing packaged products according to claim 6, characterized in that: The cover plate is provided with a first opening and a second opening, and the first opening and the second opening are both communicated with the accommodating groove.

9. The jig for washing packaged products according to claim 8, characterized in that: A first magnetic component is disposed on a side of the bottom plate, and a second magnetic component is disposed on the cover plate corresponding to the first magnetic component. When the first magnetic component is connected to the second magnetic component, the surface of the cover plate is in contact with the surface of the carrier.

10. The jig for washing packaged products according to claim 9, characterized in that: The side edge of the carrier is recessed inward to form a space-avoiding groove, and the space-avoiding groove is used for taking and placing packaged products.

Citation Information

Patent Citations

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