Ceramic substrate and manufacturing method thereof

Abstract

The invention relates to the technical field of ceramic substrate manufacturing, in particular to a ceramic substrate and a manufacturing method thereof.The method comprises the following steps that firstly, a monomer, a cross-linking agent and a solvent are stirred and mixed according to the proportion, and preparation of premixed liquid is completed; step 2, performing ball-milling treatment on a dispersing agent, and adding the dispersing agent subjected to ball-milling into the premixed liquid in proportion; step 3, carrying out ball-milling treatment on the powder, and adding the ball-milled powder into the premixed liquid in proportion; 4, stirring the premixed liquid and the dispersing agent and the powder in the premixed liquid; step 5, adding an initiator into the premixed liquid and carrying out defoaming treatment on the premixed liquid; step 6, adding the de-foamed raw materials into the cavity of the mold; and step 7, cooling and solidifying the raw materials in the cavity of the mold to complete manufacturing of the ceramic substrate, and the method can be used for simultaneously processing a plurality of ceramic substrates.

Description

Technical Field

[0001] This invention relates to the field of ceramic substrate manufacturing technology, and more specifically to a ceramic substrate and its manufacturing method. Background Technology

[0002] Ceramic substrates possess excellent electrical insulation properties, high thermal conductivity, superior solderability, and high adhesion strength. They can also be etched with various patterns like PCB boards and have a large current-carrying capacity. Therefore, ceramic substrates have become a fundamental material for high-power power electronic circuit structure technology and interconnection technology. They have sufficiently high mechanical strength and can be used as support components in addition to mounting components. They have good machinability and high dimensional accuracy and are easy to multiply. However, current ceramic substrate manufacturing technology cannot process multiple ceramic substrates simultaneously. Summary of the Invention

[0003] The purpose of this invention is to provide a ceramic substrate and its manufacturing method, which can process multiple ceramic substrates simultaneously.

[0004] The objective of this invention is achieved through the following technical solution:

[0005] A method for manufacturing a ceramic substrate, the method comprising the following steps:

[0006] Step 1: Mix the monomer, crosslinking agent, and solvent in a specified ratio to prepare the premixed solution.

[0007] Step 2: Ball mill the dispersant and add the ball-milled dispersant to the premixed liquid in proportion;

[0008] Step 3: Perform ball milling on the powder and add the ball-milled powder to the premixed liquid in proportion;

[0009] Step 4: Stir the premixed liquid and the dispersant and powder inside it.

[0010] Step 5: Add the initiator to the premixed solution to degas it;

[0011] Step 6: Add the degassed raw material into the mold cavity;

[0012] Step 7: Cool and solidify the raw material inside the mold cavity to complete the manufacturing of the ceramic substrate.

[0013] The sieve mesh size of the dispersant powder and the powder body is -.

[0014] The cooling and solidification process in step seven is a water-cooled cooling and solidification process.

[0015] A separation partition is slidably connected to the mold cavity, multiple demolding circular plates are rotatably connected to the mold cavity, an outer sleeve storage cavity is fixedly connected to the mold cavity, a drain horizontal pipe with a valve is fixedly connected to the outer sleeve storage cavity, and four fixed support legs are fixedly connected to the mold cavity, all four fixed support legs being fixedly connected to the outer sleeve storage cavity.

[0016] Preferably, an internal threaded cavity is fixedly connected to the separation partition, and a rotating support frame is fixedly connected to the outer storage cavity. A lifting screw is rotatably connected to the rotating support frame, and the lifting screw is connected to the internal threaded cavity through a threaded transmission.

[0017] Preferably, the outer casing cavity is connected to multiple demolding screws by threads, and the multiple demolding screws are respectively fixedly connected to multiple demolding discs.

[0018] Preferably, an upper sealing plate is slidably connected inside the mold cavity, a feeding vertical cavity is fixedly connected to the upper sealing plate, a plurality of feeding pipes are fixedly connected to the feeding vertical cavity, a covering plate is slidably connected inside the feeding vertical cavity, an adjusting screw is fixedly connected to the covering plate, and the adjusting screw is threadedly connected to the feeding vertical cavity.

[0019] Preferably, a storage vertical bucket is slidably connected to a plurality of the feeding pipes, a fixed support frame plate is fixedly connected to the storage vertical bucket, the fixed support frame plate is fixedly connected to the mold cavity, and a sealing sliding cover is slidably connected to the fixed support frame plate.

[0020] Preferably, a linkage support plate is fixedly connected to each of the multiple feeding pipes, and a telescopic rod is fixedly connected inside the storage vertical bucket, with the telescopic rod being fixedly connected to the linkage support plate.

[0021] Preferably, the ceramic substrate is composed of monomers, crosslinking agents, solvents, dispersants, powders, and initiators. Attached Figure Description

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

[0023] Figure 1 This is a schematic diagram of a ceramic substrate manufacturing method;

[0024] Figure 2 This is a schematic diagram of a manufacturing embodiment of a ceramic substrate;

[0025] Figure 3 This is a partial structural schematic diagram of an embodiment of the manufacturing process of a ceramic substrate;

[0026] Figure 4 This is a schematic diagram of another aspect of the manufacturing embodiment of the ceramic substrate;

[0027] Figure 5 This is a schematic diagram of an embodiment where the thickness of the manufactured ceramic substrate is changed.

[0028] Figure 6 This is a schematic diagram of an embodiment of mold processing of liquid raw materials;

[0029] Figure 7 This is a schematic diagram of an embodiment for cooling liquid raw materials;

[0030] Figure 8 This is a schematic diagram of another aspect of an embodiment for cooling liquid raw materials;

[0031] Figure 9 This is a schematic diagram of a structural embodiment for storing liquid raw materials;

[0032] Figure 10 This is a cross-sectional structural diagram of an embodiment for storing liquid raw materials. Detailed Implementation

[0033] The present invention will now be described in further detail with reference to the accompanying drawings.

[0034] The following is in conjunction with the appendix Figure 1 Detailed description: A method for manufacturing a ceramic substrate, the method comprising the following steps:

[0035] Step 1: Mix the monomer, crosslinking agent, and solvent in a specified ratio to prepare the premixed solution.

[0036] Step 2: Ball mill the dispersant and add the ball-milled dispersant to the premixed liquid in proportion;

[0037] Step 3: Perform ball milling on the powder and add the ball-milled powder to the premixed liquid in proportion;

[0038] Step 4: Stir the premixed liquid and the dispersant and powder inside it.

[0039] Step 5: Add the initiator to the premixed solution to degas it;

[0040] Step 6: Add the degassed raw material into the mold cavity 101;

[0041] Step 7: Cool and solidify the raw material in the mold cavity 101 to complete the manufacturing of the ceramic substrate.

[0042] The following is in conjunction with the appendix Figure 1 The powder of the dispersant has a sieve mesh size of 20-30.

[0043] The following is in conjunction with the appendix Figure 1 In detail, the cooling and solidification process in step seven is a water-cooled cooling and solidification process.

[0044] According to the instruction manual Figure 2-8 In detail, a separation partition 102 is slidably connected to the mold cavity 101 through a square opening. Multiple demolding circular plates 103 are rotatably connected to the mold cavity 101 through multiple stepped holes. An outer storage cavity 104 is fixedly connected to the mold cavity 101 by welding. A drain horizontal pipe 105 with a valve is fixedly connected to and communicates with the outer storage cavity 104 by welding. Four fixed support legs 106 are fixedly connected to the mold cavity 101 by welding. All four fixed support legs 106 are fixedly connected to the outer storage cavity 104 by welding.

[0045] Furthermore, liquid raw materials can be added into the mold cavity 101, where ceramic substrate mold processing can be completed. The separation partition 102 can be used to separate the mold cavity 101, thereby enabling the simultaneous manufacture of multiple ceramic substrates. The height of the separation partition 102 can be adjusted according to the thickness of the manufactured ceramic substrate, thus changing the distance between the upper surface of the separation partition 102 and the ground of the mold cavity 101, and consequently altering the thickness of the manufactured ceramic substrate. Multiple demolding discs 103 have a uniform stepped shape, and their upper surfaces are flush with the mold cavity 101. The bottom surface of 1 is flat. After the liquid raw material in the mold cavity 101 solidifies, multiple demolding discs 103 can be used to move the solidified raw material upward to complete the demolding process. The outer sleeve cavity 104 can store water. The water in the outer sleeve cavity 104 is used to cool the mold cavity 101, thereby accelerating the solidification speed of the liquid raw material in the mold cavity 101. The water in the outer sleeve cavity 104 can be drained through the drain pipe 105 with a valve. The four fixed legs 106 play a supporting and fixing role. The four fixed legs 106 are used to place the device stably on the ground.

[0046] By adjusting the thickness of the ceramic substrate and the height of the separation plate 102, liquid raw material is added to the mold cavity 101, making the liquid level with the upper surface of the separation plate 102. Cold water is added to the outer casing cavity 104 and discharged through the drain pipe 105 with a valve, allowing cold water to circulate in the outer casing cavity 104. The cold water is used to cool the mold cavity 101, thereby accelerating the solidification of the liquid raw material in the mold cavity 101. After the liquid raw material solidifies, multiple demolding discs 103 are moved upwards, allowing the solidified liquid raw material to separate from the mold cavity 101 and the separation plate 102, achieving the purpose of demolding and completing the manufacturing of the ceramic substrate.

[0047] According to the instruction manual Figure 2-8In detail, the separation partition 102 is fixedly connected to the internal threaded cavity 201 by welding, and the outer storage cavity 104 is fixedly connected to the rotating support frame plate 202 by welding. The rotating support frame plate 202 is rotatably connected to the lifting screw 203 through the bearing hole. The lifting screw 203 and the internal threaded cavity 201 are connected by threaded transmission.

[0048] Furthermore, the internal threaded cavity 201 can drive the separation partition 102 to rise and fall, while the rotating frame plate 202 can provide space for the lifting screw 203 to rotate. When the lifting screw 203 rotates, it can drive the internal threaded cavity 201 to rise and fall, thereby changing the height of the separation partition 102 and completing the manufacturing of ceramic substrates of different thicknesses.

[0049] According to the instruction manual Figure 2-4 As detailed in 6-8, the outer casing cavity 104 is connected by multiple demolding screws 301 via threads, and the multiple demolding screws 301 are respectively fixedly connected to multiple demolding circular plates 103 by welding.

[0050] Furthermore, after rotating the multiple demolding screws 301, the multiple demolding screws 301 can be raised and lowered on the outer sleeve cavity 104, thereby driving the multiple demolding discs 103 to rotate and move upward. At this time, the multiple demolding discs 103 will rotate and move upward. When the multiple demolding discs 103 move upward, the solidified raw material can be separated from the mold cavity 101 and the separation partition 102. When the multiple demolding discs 103 rotate, the solidified raw material can be separated from the multiple demolding discs 103, ensuring the complete demolding of the solidified raw material.

[0051] According to the instruction manual Figure 2 , 9 In detail with reference to 10, the upper sealing slide plate 401 is slidably connected to the mold cavity 101 via a straight cavity. The upper sealing slide plate 401 is fixedly connected to the upper sealing slide plate 401 by welding. Multiple feeding pipes 403 are fixedly connected to the feeding vertical cavity 402 by welding and are connected to each other. The covering plate 501 is slidably connected to the feeding vertical cavity 402 via a straight cavity. The adjusting screw 502 is fixedly connected to the covering plate 501 by welding. The adjusting screw 502 is threadedly connected to the feeding vertical cavity 402.

[0052] Furthermore, the upper sealing slide plate 401 can smooth the surface of the liquid material. The liquid material is added to the mold cavity 101 through the feeding vertical cavity 402. The material can be added to multiple feeding pipes 403, and then the liquid material will enter the feeding vertical cavity 402. Finally, the liquid material will flow between the mold cavity 101 and the separation partition 102. The feeding vertical cavity 402 is designed with transparent material, allowing observation of the amount of liquid material entering the mold cavity 101 and the separation partition 102. When the liquid material fills the mold cavity 101 and... After separating the partition plate 102, rotate the adjusting screw 502 to drive the coating plate 501 to move downward. The coating plate 501 can be used to extrude and flatten the liquid raw material, ensuring that there are no residual air bubbles in the liquid raw material. It can also further ensure the flatness of the manufactured ceramic substrate and improve the quality of the manufactured ceramic substrate. There is no need to perform secondary processing on the ceramic substrate after the mold is processed. The coating plate 501 also acts as a valve. When the coating plate 501 is lower than the multiple feeding pipes 403, the liquid raw material will not be able to enter the mold cavity 101 and the separation partition plate 102.

[0053] According to the instruction manual Figure 2 , 9 In detail with reference to 10, multiple feeding pipes 403 are slidably connected to a storage vertical barrel 601 through multiple hollow sliding cavities. A fixed support frame plate 602 is fixedly connected to the storage vertical barrel 601 by welding. The fixed support frame plate 602 is fixedly connected to the mold cavity 101 by welding. A sealing sliding cover 603 is slidably connected to the fixed support frame plate 602 through a straight cavity.

[0054] Furthermore, a large amount of liquid raw material can be added into the storage vertical tank 601 for storage. The bottom of the storage vertical tank 601 is provided with multiple hollow sliding cavities, which are slidably connected to multiple feeding pipes 403. The liquid raw material in the storage vertical tank 601 will be discharged through the multiple hollow sliding cavities and enter the multiple feeding pipes 403. The bottom surface of the storage vertical tank 601 is set with a slope, which allows the liquid raw material in the storage vertical tank 601 to be completely discharged, avoiding waste of liquid raw material. The fixed support frame plate 602 can provide a fixed space for the storage vertical tank 601, realizing the complete fixation of the storage vertical tank 601. The sealing sliding cover 603 can realize the opening at the top of the storage vertical tank 601. The sealing treatment prevents foreign objects from entering the storage vertical tank 601. If foreign objects enter the storage vertical tank 601, they will have an irreversible impact on the quality of the liquid raw materials inside. The sealing sliding cover 603 is fixedly connected to a handle, which can be used to easily move the sealing sliding cover 603. The storage vertical tank 601 is equipped with a heating plate, which is used to heat the liquid raw materials inside the storage vertical tank 601. The sealing sliding cover 603 is equipped with a stirring component, which can be used to stir the liquid raw materials inside the storage vertical tank 601. During the stirring process, the liquid raw materials are heated, which improves the stirring efficiency of the liquid raw materials and further ensures that the liquid raw materials will not solidify inside the storage vertical tank 601.

[0055] According to the instruction manual Figure 2 , 9 As detailed in section 10, multiple feeding pipes 403 are fixedly connected to a linkage support plate 701 by welding, and a telescopic rod 702 is fixedly connected to the storage vertical bucket 601 by a flange plate. The telescopic rod 702 and the linkage support plate 701 are fixedly connected by the flange plate.

[0056] Furthermore, the linkage plate 701 can drive multiple feeding pipes 403 to move upward, and the multiple feeding pipes 403 can drive the upper sealing plate 401 to rise and fall through the feeding vertical cavity 402, thereby changing the height of the upper sealing plate 401 so that the upper sealing plate 401 contacts the upper surface of the separation partition 102. Moreover, when demolding the solidified raw material, the height of the upper sealing plate 401 also needs to be adjusted so that the upper sealing plate 401 separates from the separation partition 102 and leaves a distance so that the solidified liquid raw material can be taken out.

Claims

1. A method for manufacturing a ceramic substrate, characterized in that, The method includes the following steps: Step 1: Mix the monomer, crosslinking agent, and solvent in a specified ratio to prepare the premixed solution. Step 2: Ball mill the dispersant and add the ball-milled dispersant to the premixed liquid in proportion; Step 3: Perform ball milling on the powder and add the ball-milled powder to the premixed liquid in proportion; Step 4: Stir the premixed liquid and the dispersant and powder inside it. Step 5: Add the initiator to the premixed solution to degas it; Step 6: Add the degassed raw material into the mold cavity (101); Step 7: Cool and solidify the raw material in the mold cavity (101) to complete the manufacturing of the ceramic substrate.

2. The method for manufacturing a ceramic substrate according to claim 1, characterized in that: The powder of the dispersant and the powder body have a sieve mesh size of 20-30.

3. The method for manufacturing a ceramic substrate according to claim 1, characterized in that: The cooling and solidification process in step seven is a water-cooled cooling and solidification process.

4. The method for manufacturing a ceramic substrate according to claim 1, characterized in that: A separation partition (102) is slidably connected to the mold cavity (101), a plurality of demolding discs (103) are rotatably connected to the mold cavity (101), an outer sleeve storage cavity (104) is fixedly connected to the mold cavity (101), a drain pipe (105) with a valve is fixedly connected to the outer sleeve storage cavity (104), and four fixed support legs (106) are fixedly connected to the mold cavity (101), all four fixed support legs (106) being fixedly connected to the outer sleeve storage cavity (104).

5. The method for manufacturing a ceramic substrate according to claim 4, characterized in that: An internal threaded cavity (201) is fixedly connected to the separation partition (102), and a rotating support frame plate (202) is fixedly connected to the outer storage cavity (104). A lifting screw (203) is rotatably connected to the rotating support frame plate (202), and the lifting screw (203) is connected to the internal threaded cavity (201) through threaded transmission.

6. The method for manufacturing a ceramic substrate according to claim 4, characterized in that: The outer casing cavity (104) is connected by multiple demolding screws (301) by threads, and the multiple demolding screws (301) are respectively fixedly connected to multiple demolding discs (103).

7. The method for manufacturing a ceramic substrate according to claim 4, characterized in that: The mold cavity (101) is slidably connected to an upper sealing slide plate (401), and a feeding vertical cavity (402) is fixedly connected to the upper sealing slide plate (401). Multiple feeding tubes (403) are fixedly connected to the feeding vertical cavity (402). A covering plate (501) is slidably connected to the feeding vertical cavity (402), and an adjusting screw (502) is fixedly connected to the covering plate (501). The adjusting screw (502) is threadedly connected to the feeding vertical cavity (402).

8. The method for manufacturing a ceramic substrate according to claim 7, characterized in that: A storage vertical bucket (601) is slidably connected to a plurality of the feeding pipes (403), a fixed support frame plate (602) is fixedly connected to the storage vertical bucket (601), the fixed support frame plate (602) is fixedly connected to the mold cavity (101), and a sealing slide cover (603) is slidably connected to the fixed support frame plate (602).

9. The method for manufacturing a ceramic substrate according to claim 8, characterized in that: Multiple feeding pipes (403) are fixedly connected to a linkage plate (701), and a telescopic rod (702) is fixedly connected inside the storage vertical bucket (601). The telescopic rod (702) is fixedly connected to the linkage plate (701).

10. A ceramic substrate manufactured using the ceramic substrate manufacturing method according to claim 1, characterized in that: The ceramic substrate is composed of monomers, crosslinking agents, solvents, dispersants, powders and initiators.

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