Protective device for preventing oxidation after surface cleaning of substrate
By designing a protective device for anti-oxidation after cleaning the substrate surface, using electrochemical anti-oxidation and spraying anti-oxidation coatings, the problem of oxidation of copper substrates during production is solved, and the long-term stability and electrical conductivity of the substrate are improved.
Patent Information
- Application Number
- CN202421625528.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-10
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-07-10
AI Technical Summary
During the production process, the copper substrate is exposed to air environment for a long time and the surface is prone to oxidation, resulting in a decrease in electrical conduction performance and affecting the quality of the circuit board.
A protective device for anti-oxidation after cleaning the substrate surface is designed, including an electrical protection component, a spraying component and a drying component. Through the electrochemical anti-oxidation principle, active metal blocks and DC power supplies are used to protect the surface of the substrate, and anti-oxidation coatings are sprayed and dried to ensure the anti-oxidation effect of the substrate during the transmission process.
It effectively prevents oxidation problems of the substrate during transmission, ensures the long-term stability and electrical conductivity of the substrate, and improves the quality of the circuit board.
Smart Images
Figure CN223024689U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of circuit board processing, in particular to a protection device for preventing oxidation after the surface of a substrate is cleaned. Background Art
[0002] A substrate is a basic material used to support and connect other electronic components, and is widely used in electronic devices and circuits. It provides mechanical support and electrical connection, and helps manage heat and signal transmission at the same time. Substrates can be made of a variety of materials, including metals (such as copper, aluminum), ceramics, and composite materials, and the specific selection depends on application requirements and environmental conditions. In printed circuit boards (PCBs) and semiconductor packages, the substrate is a key component that affects the performance and reliability of the entire system.
[0003] Most of the commonly used substrates now adopt copper metal materials. However, during the production process, the copper substrate is exposed to the air environment for a long time, and its surface is extremely prone to oxidation. The oxidized copper substrate on the surface will lose a considerable degree of electrical conductivity, resulting in a reduction in the quality of the finally produced and formed circuit board. Therefore, protecting the surface of the substrate from oxidation is a key step to ensure its long-term stability and functionality. In the conventional substrate processing process, after the surface of the substrate is cleaned, it is often necessary to carry out anti-oxidation protection on it. However, during the transmission process, the substrate is still inevitably in contact with the external air environment, and there will still be a certain surface oxidation problem. Summary of the Utility Model
[0004] Based on this, in view of the deficiencies in the prior art, it is necessary to provide a protection device for preventing oxidation after the surface of a substrate is cleaned.
[0005] A protection device for preventing oxidation after the surface of a substrate is cleaned includes a processing table and a transmission component, an electrical protection component, a spraying component, and a drying component installed on the processing table. The spraying component and the drying component are arranged in sequence. The transmission component penetrates through the spraying component and the drying component in the left-right direction, and the electrical protection component is arranged on one side of the transmission component. The electrical protection component includes a set of DC power supplies and an active metal block. The DC power supplies are installed on the processing table, the active metal block is installed on the DC power supplies, and the positive pole of the DC power supply is electrically connected to the active metal block, while the negative pole of the DC power supply is electrically connected to the transmission component. The transmission component is made of a conductive metal material.
[0006] Further, the transmission component includes a transmission slide rail and a bearing plate. The transmission slide rail is installed on the processing table and penetrates through the spraying component and the drying component. The bearing plate is snap-fitted on the transmission slide rail and can slide left and right. A number of negative pressure suction holes are also provided on the bearing plate.
[0007] Further, the spraying assembly includes a first sealed box, a horizontal sliding rod, a lifting air rod, and a nozzle. The first sealed box covers the processing table, and there are first circuit board inlets and outlets on both sides of its bottom. A first lifting shutter is also provided on the first sealed box, and the first lifting shutter is engaged with the first circuit board inlet and outlet and can move up and down. The horizontal sliding rod is engaged and installed on the inner top of the first sealed box and can slide left and right. The upper end of the lifting air rod passes through the horizontal sliding rod and can slide back and forth. The nozzle is installed at the lower end of the lifting air rod and can rotate.
[0008] Further, the drying assembly includes a second sealed box and a dryer. The second sealed box covers the processing table, and there are second circuit board inlets and outlets on both sides of its bottom. A second lifting shutter is also provided on the second sealed box, and the second lifting shutter is engaged with the second circuit board inlet and outlet and can move up and down. The dryer is installed on the inner top of the second sealed box.
[0009] Further, the protection device for preventing oxidation of the substrate surface after cleaning further includes an inert gas supply assembly. The inert gas supply assembly includes an air pump and a plurality of gas transmission pipelines. The air pump is installed on the processing table and is located on one side of the spraying assembly and the drying assembly. One ends of the plurality of gas transmission pipelines are respectively communicated with the air pump, and the other ends are respectively communicated with the spraying assembly and the drying assembly.
[0010] In summary, the beneficial effects of the protection device for preventing oxidation of the substrate surface after cleaning of the present utility model are as follows: By designing an electrical protection assembly in cooperation with a conductive transmission assembly and using the principle of electrochemical anti-oxidation to protect the substrate surface, the oxidation problem of the substrate during the transmission process can be effectively prevented; The spraying assembly sprays an anti-oxidation coating to further protect the substrate surface; The drying assembly is designed to dry the substrate sprayed with the anti-oxidation coating, making the anti-oxidation processing of the substrate more efficient and reliable; The present utility model has strong practicability and has strong popularization significance. Description of the Drawings
[0011] Figure 1 is a schematic structural diagram of a protection device for preventing oxidation of the substrate surface after cleaning of the present utility model;
[0012] Figure 2 is Figure 1 the exploded structural diagram of;
[0013] Figure 3 is Figure 2 the exploded structural diagram of the transmission assembly in;
[0014] Figure 4 is Figure 2 the exploded structural diagram of the electrical protection assembly in;
[0015] Figure 5 is Figure 2 a schematic exploded view of the spraying assembly in
[0016] Figure 6 is Figure 2 a schematic exploded view of the drying assembly in
[0017] Figure 7 is Figure 2 a schematic view of the structure of the inert gas supply assembly in Detailed implementation manners
[0018] In order to make the purpose, technical solutions and advantages of the utility model clearer, the following further details the utility model in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model.
[0019] As Figures 1 to 7 shown, the utility model provides a protection device 100 for preventing oxidation after cleaning the surface of a substrate, which includes a processing table 10 and a transmission assembly 20, an electrical protection assembly 30, a spraying assembly 40, and a drying assembly 50 installed on the processing table 10. The spraying assembly 40 and the drying assembly 50 are arranged in sequence, the transmission assembly 20 penetrates through the spraying assembly 40 and the drying assembly 50 in the left-right direction, and the electrical protection assembly 30 is arranged on one side of the transmission assembly 20. It can be understood that the utility model also includes several power supply and gas supply devices, electrical connection structures, various different sensors and an automatic control system. Since they are all conventional contents in this technical field, they will not be described in detail herein.
[0020] The transmission assembly 20 includes a transmission slide rail 21 and a carrier plate 22. The transmission slide rail 21 is installed on the processing table 10 and penetrates through the spraying assembly 40 and the drying assembly 50. The carrier plate 22 is snap-fitted on the transmission slide rail 21 and can slide left and right. The carrier plate 22 is also provided with a plurality of negative pressure suction holes 221. The carrier plate 22 provided with the negative pressure suction holes 221 can reliably adsorb and fix the substrate, so that the substrate can be better electrically connected to the transmission assembly 20.
[0021] The electrical protection assembly 30 includes a set of DC power supplies 31 and an active metal block 32. The DC power supplies 31 are installed on the processing table 10, the active metal block 32 is installed on the DC power supplies 31, and the positive pole of the DC power supplies 31 is electrically connected to the active metal block 32, while the negative pole of the DC power supplies 31 is electrically connected to the transmission assembly 20. The transmission assembly 20 is made of a conductive metal material.
[0022] Connect the active metal block 32 and the substrate to the positive and negative electrodes of the DC power supply 31 respectively. Through the electrochemical reaction, the oxidation of the substrate can be effectively prevented. This method utilizes the active metal as a sacrificial anode to protect the substrate (cathode) from oxidation reaction through the current, which is an effective electrochemical anti-oxidation method. In this embodiment, the active metal block 32 is specifically a zinc metal. It can be understood that in other embodiments, it can also be a magnesium metal or an aluminum metal, etc., which are all within the protection scope of the present utility model.
[0023] The spraying assembly 40 includes a first sealing box 41, a horizontal sliding rod 42, a lifting air rod 43 and a nozzle 44. The first sealing box 41 covers the processing table 10, and first circuit board inlets and outlets 411 are provided on both sides of its bottom. A first lifting shutter 412 is also provided on the first sealing box 41, and the first lifting shutter 412 is engaged with the first circuit board inlets and outlets 411 and can move up and down. The horizontal sliding rod 42 is engaged and installed on the inner top of the first sealing box 41 and can slide left and right. The upper end of the lifting air rod 43 passes through the horizontal sliding rod 42 and can slide back and forth. The nozzle 44 is installed at the lower end of the lifting air rod 43 and can rotate.
[0024] The first sealing box 41 provided with the first lifting shutter 412 can not only ensure the entry and exit of the substrate, but also isolate the substrate in the sealing box from the outside air as much as possible, thereby reducing the risk of oxidation on the surface of the substrate. The nozzle 44 structure that can slide, lift and rotate can comprehensively and efficiently spray the anti-oxidation coating on the surface of the substrate, so that the substrate is protected against oxidation more comprehensively.
[0025] The drying assembly 50 includes a second sealing box 51 and a dryer 52. The second sealing box 51 covers the processing table 10, and second circuit board inlets and outlets 511 are provided on both sides of its bottom. A second lifting shutter 512 is also provided on the second sealing box 51, and the second lifting shutter 512 is engaged with the second circuit board inlets and outlets 511 and can move up and down. The dryer 52 is installed on the inner top of the second sealing box 51.
[0026] The second sealing box 51 provided with the second lifting shutter 512 can not only ensure the entry and exit of the substrate, but also isolate the substrate in the sealing box from the outside air as much as possible, thereby reducing the risk of oxidation on the surface of the substrate. The dryer 52 in the sealing box can quickly dry the anti-oxidation coating applied on the surface of the substrate, so that the substrate can be formed and unloaded faster, thereby improving the overall processing efficiency.
[0027] The protection device 100 for preventing oxidation after cleaning the substrate surface further includes an inert gas supply assembly 60. The inert gas supply assembly 60 includes an air pump 61 and a plurality of gas transmission pipelines 62. The air pump 61 is installed on the processing table 10 and is located on one side of the spraying assembly 40 and the drying assembly 50. One ends of the plurality of gas transmission pipelines 62 are respectively communicated with the air pump 61, and the other ends are respectively communicated with the spraying assembly 40 and the drying assembly 50. The air pump 61 can fill inert gases such as argon and xenon into the first sealed box 41 and the second sealed box 51 along the gas transmission pipelines 62. In an inert gas environment, the oxidation problem on the substrate surface will be further weakened, so that the substrate can be better protected.
[0028] In summary, the beneficial effects of the protection device 100 for preventing oxidation after cleaning the substrate surface of the present utility model are as follows: By designing the electrical protection assembly 30 to cooperate with the conductive transmission assembly 20, the principle of electrochemical anti-oxidation is used to protect the substrate surface, thereby effectively preventing the oxidation problem of the substrate during the transmission process; The spraying assembly 40 sprays an anti-oxidation coating to further protect the substrate surface; The drying assembly 50 is designed to dry the substrate sprayed with the anti-oxidation coating, making the anti-oxidation processing of the substrate more efficient and reliable; The present utility model has strong practicability and has strong popularization significance.
[0029] The above embodiments only represent one implementation manner of the utility model, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the utility model, several modifications and improvements can still be made, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be subject to the appended claims.
Claims
1. A protective device for preventing oxidation of a substrate surface after cleaning, characterized in that: It includes a processing table and a transmission component, an electrical protection component, a spraying component, and a drying component installed on the processing table; the spraying component and the drying component are arranged in sequence, the transmission component is inserted into the spraying component and the drying component along the left-right direction, and the electrical protection component is arranged on one side of the transmission component; the electrical protection component includes a set of DC power supplies and an active metal block, the DC power supply is installed on the processing table, the active metal block is installed on the DC power supply, and the positive pole of the DC power supply is electrically connected to the active metal block, and the negative pole of the DC power supply is electrically connected to the transmission component, and the material of the transmission component is a conductive metal material.
2. The protective device for preventing oxidation of a substrate surface after cleaning as claimed in claim 1, characterized in that: The transmission component includes a transmission slide rail and a supporting plate. The transmission slide rail is installed on the processing table and penetrates the spraying component and the drying component. The supporting plate is mounted on the transmission slide rail and can slide left and right. A plurality of negative pressure suction holes are also provided on the supporting plate.
3. The protective device for preventing oxidation of a substrate surface after cleaning as claimed in claim 1, characterized in that: The spraying assembly includes a first sealing box, a horizontal sliding bar, a lifting gas rod and a nozzle; the first sealing box cover is closed on the processing table, and a first circuit board entrance and exit are provided on both sides of its bottom, and a first lifting gate is also provided on the first sealing box, and the first lifting gate is engaged with the first circuit board entrance and exit and can be movably lifted and lowered; the horizontal sliding bar is engaged and installed on the inner top of the first sealing box and can slide left and right, the upper end of the lifting gas rod is passed through the horizontal sliding bar and can slide back and forth, and the nozzle is installed at the lower end of the lifting gas rod and can be movably rotated.
4. The protective device for preventing oxidation of a substrate surface after cleaning as claimed in claim 1, characterized in that: The drying component includes a second sealed box and a dryer; the second sealed box cover is closed on the processing table, and second circuit board entrances and exits are arranged on both sides of its bottom, and the second sealed box is also provided with a second lifting gate, which is engaged with the second circuit board entrance and exit and can be movably lifted and lowered; the dryer is installed on the inner top of the second sealed box.
5. The protective device for preventing oxidation of a substrate surface after cleaning as claimed in claim 1, characterized in that: It also includes an inert gas supply component, which includes an air pump and a plurality of gas transmission pipes; the air pump is installed on the processing table and is located on one side of the spraying component and the drying component, one end of the plurality of gas transmission pipes is respectively connected to the air pump, and the other end is respectively connected to the spraying component and the drying component.