CN116903379A - 一种复合氮化铝陶瓷基板的制备方法 - Google Patents
一种复合氮化铝陶瓷基板的制备方法 Download PDFInfo
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- 239000000919 ceramic Substances 0.000 title claims abstract description 78
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 title claims abstract description 73
- 239000000758 substrate Substances 0.000 title claims abstract description 62
- 239000002131 composite material Substances 0.000 title claims abstract description 44
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- 238000007599 discharging Methods 0.000 claims abstract description 44
- 239000003292 glue Substances 0.000 claims abstract description 43
- 238000005245 sintering Methods 0.000 claims abstract description 36
- 238000005266 casting Methods 0.000 claims abstract description 24
- 238000000498 ball milling Methods 0.000 claims abstract description 23
- 238000000034 method Methods 0.000 claims abstract description 20
- 239000002002 slurry Substances 0.000 claims abstract description 19
- 239000000843 powder Substances 0.000 claims abstract description 18
- 239000002994 raw material Substances 0.000 claims abstract description 14
- 238000010030 laminating Methods 0.000 claims abstract description 13
- 238000004080 punching Methods 0.000 claims abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 10
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000002270 dispersing agent Substances 0.000 claims abstract description 8
- 239000003960 organic solvent Substances 0.000 claims abstract description 8
- 238000010345 tape casting Methods 0.000 claims abstract description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 28
- 229910052757 nitrogen Inorganic materials 0.000 claims description 14
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 7
- 229910052799 carbon Inorganic materials 0.000 claims description 7
- 238000003958 fumigation Methods 0.000 claims description 7
- 239000007789 gas Substances 0.000 claims description 7
- 239000002202 Polyethylene glycol Substances 0.000 claims description 6
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 6
- 229920001223 polyethylene glycol Polymers 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 4
- 239000004925 Acrylic resin Substances 0.000 claims description 3
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 3
- 239000000292 calcium oxide Substances 0.000 claims description 3
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 3
- 235000021388 linseed oil Nutrition 0.000 claims description 3
- 239000000944 linseed oil Substances 0.000 claims description 3
- 239000000395 magnesium oxide Substances 0.000 claims description 3
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 3
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 3
- 229920000609 methyl cellulose Polymers 0.000 claims description 3
- 239000001923 methylcellulose Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 239000003921 oil Substances 0.000 claims description 3
- 235000019198 oils Nutrition 0.000 claims description 3
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims description 3
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 3
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 3
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 3
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 3
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical group [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 claims description 3
- 238000002490 spark plasma sintering Methods 0.000 claims description 3
- RUDFQVOCFDJEEF-UHFFFAOYSA-N yttrium(III) oxide Inorganic materials [O-2].[O-2].[O-2].[Y+3].[Y+3] RUDFQVOCFDJEEF-UHFFFAOYSA-N 0.000 claims description 3
- 239000011787 zinc oxide Substances 0.000 claims description 3
- 229910001928 zirconium oxide Inorganic materials 0.000 claims description 3
- 238000000465 moulding Methods 0.000 abstract description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 229910052593 corundum Inorganic materials 0.000 description 3
- 229910001845 yogo sapphire Inorganic materials 0.000 description 3
- 229910010293 ceramic material Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- FRWYFWZENXDZMU-UHFFFAOYSA-N 2-iodoquinoline Chemical compound C1=CC=CC2=NC(I)=CC=C21 FRWYFWZENXDZMU-UHFFFAOYSA-N 0.000 description 1
- LTPBRCUWZOMYOC-UHFFFAOYSA-N beryllium oxide Inorganic materials O=[Be] LTPBRCUWZOMYOC-UHFFFAOYSA-N 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 239000011224 oxide ceramic Substances 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 238000012536 packaging technology Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
本发明公开了一种复合氮化铝陶瓷基板的制备方法,包括:将制备复合氮化铝陶瓷基板的原料经过原料球磨步骤、脱泡步骤、流延成型步骤、冲片步骤、叠压步骤、排胶步骤及烧结步骤得到复合氮化铝陶瓷基板成品;原料球磨步骤包括:将氮化铝粉体、导热粉体、烧结助剂、有机溶剂、分散剂送入球磨机中球磨处理;脱泡步骤包括:采用真空脱泡机对经过所述配料球磨步骤后的物料进行抽真空脱泡,得到陶瓷浆料;流延成型步骤包括:将经过脱泡步骤的陶瓷浆料送入流延机进行流延成型,并静置一定时间,得到生坯带;该复合氮化铝陶瓷基板的制备方法制得的复合氮化铝陶瓷基板的导热率在介于氧化铝和氮化铝之间的基础上,成本比现有技术的氮化铝陶瓷基片更低。
Description
技术领域
本发明涉及陶瓷材料技术领域,尤其涉及一种复合氮化铝陶瓷基板的制备方法。
背景技术
为了满足电力电子及电子信息产业的需求,对材料的导热绝缘功能要求越来越高。其中,陶瓷基板因为其具备高绝缘性、较好的散热性能及结构支撑作用,被广泛用作导热绝缘材料。在电力电子行业陶瓷基板应用中,Al2O3陶瓷基板的市场份额占据了总量的80%以上。这是因为Al2O3陶瓷有着较高的化学稳定性、导热性能、电绝缘性能,且其原料来源丰富,与金属有着优良的附着性能,制备成本较低。
随着电子集成和封装技术的快速发展,电子元器件和设备向小型化、微型化方向发展,对材料的散热性能提出了越来越高的要求。Al2O3陶瓷基板的导热率(20至30w/mK)日益不能满足产品的需求,更高导热率的氮化铝陶瓷应用应运而生。
氮化铝是一种具有优良导热性能、较低介电常数和介电损耗、高体积电阻率、无毒以及与硅相近的热膨胀系数等优良综合性能的新兴陶瓷材料。氮化铝陶瓷的理论热导率最高可以达320W/(m·K),但是,受晶格、气孔、缺陷、杂质、结构等影响,现有技术的氮化铝基板一般热导率在170至190W/(m·K),是氧化铝基板的7倍左右,而且耐高温和腐蚀,其综合性能好于氧化铝和氧化铍陶瓷,是新一代半导体基片和电子原件封装材料的首选,在电子工业领域的应用前景十分广阔。
但是氮化铝粉体的生产条件和生产工艺需求非常苛刻,以致氮化铝粉体成本很高,同时陶瓷基片的成本很高,相同尺寸厚度条件下,氮化铝陶瓷基片的成本是氧化铝陶瓷基片的8至10倍。巨大的成本差距限制了氮化铝陶瓷基片的广范应用。
亟需制备一种导热率介于氧化铝和氮化铝之间,成本比氮化铝陶瓷基片明显下降的复合氮化铝陶瓷基板。
发明内容
本发明要解决的技术问题是提出一种复合氮化铝陶瓷基板的制备方法,该复合氮化铝陶瓷基板的制备方法制得的复合氮化铝陶瓷基板的导热率在介于氧化铝和氮化铝之间的基础上,成本比现有技术的氮化铝陶瓷基片更低。
为解决上述技术问题,本发明提供一种复合氮化铝陶瓷基板的制备方法,包括:将制备复合氮化铝陶瓷基板的原料经过原料球磨步骤、脱泡步骤、流延成型步骤、冲片步骤、叠压步骤、排胶步骤及烧结步骤得到复合氮化铝陶瓷基板成品;
所述原料球磨步骤包括:将氮化铝粉体、导热粉体、烧结助剂、有机溶剂、分散剂送入球磨机中球磨处理;
所述脱泡步骤包括:采用真空脱泡机对经过所述配料球磨步骤后的物料进行抽真空脱泡,得到陶瓷浆料;
所述流延成型步骤包括:将经过脱泡步骤的陶瓷浆料送入流延机进行流延成型,并静置一定时间,得到生坯带;
所述冲片步骤包括:将流延成型后的生坯带进行切片,得到所需形状及尺寸的生坯片;
所述叠压步骤包括:对经过冲片步骤后得到的生坯片根据厚度需求解压得到一定厚度的生坯片;
所述排胶步骤包括:将经过叠压步骤处理后的生坯片放入氮气保护排胶炉中,在所述氮气保护排胶炉的气熏下进行排胶至碳含量一定值以下;
所述烧结步骤包括:将经过排胶步骤排胶完成的生坯片进行烧结得到复合氮化铝陶瓷基板成品。
优选地,所述脱泡步骤得到的陶瓷浆料为粘度大于或等于15000mPa·s的陶瓷浆料。
优选地,所述流延成型步骤中将陶瓷浆料送入流延机进行流延成型后静置的时间为:大于或等于6小时。
优选地,所述原料球磨步骤中的所述导热粉体和氮化铝质量比为:M:N;所述M为:30至50;所述N为:50至70。
优选地,所述导热粉体包括氮化硅、碳化硅、氧化硅、氧化铝、氧化钙、氧化锆、氧化镁及氧化锌中的至少一种。
优选地,所述有机溶剂为包括亚麻籽油、甲基纤维素、聚乙二醇、聚丙烯酸树脂的混合物。
优选地,所述分散剂为聚丙烯酸钠或者环烷油或者聚乙二醇。
优选地,所述烧结助剂为氧化钇。
优选地,所述排胶步骤中的生坯片在所述氮气保护排胶炉的气熏下进行排胶的具体控制过程为:在氮气保护排胶炉中的生坯片先在室温下静置4至5小时,再升温至130℃并保持温度17至18小时,接着升温至190℃并保持温度10至11小时,再升温至240℃并保持温度12至13小时,接着升温至300℃并保持温度16至17小时,进行排胶至碳含量10000ppm以下。
优选地,所述烧结步骤包括采用放电等离子烧结的方式对经过排胶步骤后的生坯片进行烧结处理:先将排胶后的物料送入放电等离子烧结炉中加热升温至1300至1350℃,并保持温度30至50分钟,再调整放电等离子烧结炉的炉内压力至25至80Mpa,然后将烧结温度升高至1700至1850度,并保持温度20至30分钟。
采用上述方法之后,复合氮化铝陶瓷基板的制备方法包括:将制备复合氮化铝陶瓷基板的原料经过原料球磨步骤、脱泡步骤、流延成型步骤、冲片步骤、叠压步骤、排胶步骤及烧结步骤得到复合氮化铝陶瓷基板成品;所述原料球磨步骤包括:将氮化铝粉体、导热粉体、烧结助剂、有机溶剂、分散剂送入球磨机中球磨处理;所述脱泡步骤包括:采用真空脱泡机对经过所述配料球磨步骤后的物料进行抽真空脱泡,得到陶瓷浆料;所述流延成型步骤包括:将经过脱泡步骤的陶瓷浆料送入流延机进行流延成型,并静置一定时间,得到生坯带;所述冲片步骤包括:将流延成型后的生坯带进行切片,得到所需形状及尺寸的生坯片;所述叠压步骤包括:对经过冲片步骤后得到的生坯片进行根据厚度需求解压得到一定厚度的生坯片;所述排胶步骤包括:将经过叠压步骤处理后的生坯片放入氮气保护排胶炉中,在所述氮气保护排胶炉的气熏下进行排胶至碳含量一定值以下;所述烧结步骤包括:将经过排胶步骤排胶完成的生坯片进行烧结得到复合氮化铝陶瓷基板成品;该复合氮化铝陶瓷基板的制备方法制得的复合氮化铝陶瓷基板的导热率在介于氧化铝和氮化铝之间的基础上,成本比现有技术的氮化铝陶瓷基片更低。
附图说明
图1为本发明一种复合氮化铝陶瓷基板的制备方法的整体工作流程图一;
图2为本发明一种复合氮化铝陶瓷基板的制备方法的整体工作流程图二。
具体实施方式
为了使本发明的目的、技术方案及优点更加清楚明白,以下结合附图及实施例,对本发明进行进一步详细说明。应当理解,此处所描述的具体实施例仅仅用于解释本发明,并不用于限定本发明。
实施例一
请参阅图1,图1为本发明一种复合氮化铝陶瓷基板的制备方法的整体工作流程图一;
本实施例公开了一种复合氮化铝陶瓷基板的制备方法,包括:将制备复合氮化铝陶瓷基板的原料经过原料球磨步骤、脱泡步骤、流延成型步骤、冲片步骤、叠压步骤、排胶步骤及烧结步骤得到复合氮化铝陶瓷基板成品;
所述原料球磨步骤包括:将氮化铝粉体、导热粉体、烧结助剂、有机溶剂、分散剂送入球磨机中球磨处理;
所述脱泡步骤包括:采用真空脱泡机对经过所述配料球磨步骤后的物料进行抽真空脱泡,得到陶瓷浆料;
所述流延成型步骤包括:将经过脱泡步骤的陶瓷浆料送入流延机进行流延成型,并静置一定时间,得到生坯带;
所述冲片步骤包括:将流延成型后的生坯带进行切片,得到所需形状及尺寸的生坯片;
所述叠压步骤包括:对经过冲片步骤后得到的生坯片根据厚度需求解压得到一定厚度的生坯片;
所述排胶步骤包括:将经过叠压步骤处理后的生坯片放入氮气保护排胶炉中,在所述氮气保护排胶炉的气熏下进行排胶至碳含量一定值以下;
所述烧结步骤包括:将经过排胶步骤排胶完成的生坯片进行烧结得到复合氮化铝陶瓷基板成品。
实施例二
本实施例以实施例一为基础,在本实施例中,所述脱泡步骤得到的陶瓷浆料为粘度大于或等于15000mPa·s的陶瓷浆料。
所述流延成型步骤中将陶瓷浆料送入流延机进行流延成型后静置的时间为:大于或等于6小时。
实施例三
本实施例以实施例一为基础,在本实施例中,所述原料球磨步骤中的所述导热粉体和氮化铝质量比为:M:N;所述M为:30至50;所述N为:50至70;
所述导热粉体包括氮化硅、碳化硅、氧化硅、氧化铝、氧化钙、氧化锆、氧化镁、氧化锌中的至少一种;
所述有机溶剂为包括亚麻籽油、甲基纤维素、聚乙二醇、聚丙烯酸树脂的混合物;
所述分散剂为聚丙烯酸钠或者环烷油或者聚乙二醇;
所述烧结助剂为氧化钇。
实施例四
本实施例以实施例一为基础,在本实施例中,所述排胶步骤中的生坯片在所述氮气保护排胶炉的气熏下进行排胶的具体控制过程为:在氮气保护排胶炉中的生坯片先在室温下静置4至5小时,再升温至130℃并保持温度17至18小时,接着升温至190℃并保持温度10至11小时,再升温至240℃并保持温度12至13小时,接着升温至300℃并保持温度16至17小时,进行排胶至碳含量10000ppm以下。
实施例五
本实施例以实施例一为基础,在本实施例中,
所述烧结步骤包括采用放电等离子烧结的方式对经过排胶步骤后的生坯片进行烧结处理:先将排胶后的物料送入放电等离子烧结炉中加热升温至1300至1350℃,并保持温度30至50分钟,再调整放电等离子烧结炉的炉内压力至25至80Mpa,然后将烧结温度升高至1700至1850度,并保持温度20至30分钟。
该复合氮化铝陶瓷基板的制备方法制得的复合氮化铝陶瓷基板的导热率在介于氧化铝和氮化铝之间的基础上,成本比现有技术的氮化铝陶瓷基片更低。
应当理解的是,以上仅为本发明的优选实施例,不能因此限制本发明的专利范围,凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换,或直接或间接运用在其他相关的技术领域,均同理包括在本发明的专利保护范围内。
Claims (10)
1.一种复合氮化铝陶瓷基板的制备方法,其特征在于,包括:将制备复合氮化铝陶瓷基板的原料经过原料球磨步骤、脱泡步骤、流延成型步骤、冲片步骤、叠压步骤、排胶步骤及烧结步骤得到复合氮化铝陶瓷基板成品;
所述原料球磨步骤包括:将氮化铝粉体、导热粉体、烧结助剂、有机溶剂、分散剂送入球磨机中球磨处理;
所述脱泡步骤包括:采用真空脱泡机对经过所述配料球磨步骤后的物料进行抽真空脱泡,得到陶瓷浆料;
所述流延成型步骤包括:将经过脱泡步骤的陶瓷浆料送入流延机进行流延成型,并静置一定时间,得到生坯带;
所述冲片步骤包括:将流延成型后的生坯带进行切片,得到所需形状及尺寸的生坯片;
所述叠压步骤包括:对经过冲片步骤后得到的生坯片根据厚度需求解压得到一定厚度的生坯片;
所述排胶步骤包括:将经过叠压步骤处理后的生坯片放入氮气保护排胶炉中,在所述氮气保护排胶炉的气熏下进行排胶至碳含量一定值以下;
所述烧结步骤包括:将经过排胶步骤排胶完成的生坯片进行烧结得到复合氮化铝陶瓷基板成品。
2.根据权利要求1所述的复合氮化铝陶瓷基板的制备方法,其特征在于,所述脱泡步骤得到的陶瓷浆料为粘度大于或等于15000mPa·s的陶瓷浆料。
3.根据权利要求1所述的复合氮化铝陶瓷基板的制备方法,其特征在于,所述流延成型步骤中将陶瓷浆料送入流延机进行流延成型后静置的时间为:大于或等于6小时。
4.根据权利要求1所述的复合氮化铝陶瓷基板的制备方法,其特征在于:所述原料球磨步骤中的所述导热粉体和氮化铝质量比为:M:N;所述M为:30至50;所述N为:50至70。
5.根据权利要求1所述的复合氮化铝陶瓷基板的制备方法,其特征在于:所述导热粉体包括氮化硅、碳化硅、氧化硅、氧化铝、氧化钙、氧化锆、氧化镁及氧化锌中的至少一种。
6.根据权利要求1所述的复合氮化铝陶瓷基板的制备方法,其特征在于:所述有机溶剂为包括亚麻籽油、甲基纤维素、聚乙二醇、聚丙烯酸树脂的混合物。
7.根据权利要求1所述的复合氮化铝陶瓷基板的制备方法,其特征在于:所述分散剂为聚丙烯酸钠或者环烷油或者聚乙二醇。
8.根据权利要求1所述的复合氮化铝陶瓷基板的制备方法,其特征在于:所述烧结助剂为氧化钇。
9.根据权利要求1所述的复合氮化铝陶瓷基板的制备方法,其特征在于:所述排胶步骤中的生坯片在所述氮气保护排胶炉的气熏下进行排胶的具体控制过程为:在氮气保护排胶炉中的生坯片先在室温下静置4至5小时,再升温至130℃并保持温度17至18小时,接着升温至190℃并保持温度10至11小时,再升温至240℃并保持温度12至13小时,接着升温至300℃并保持温度16至17小时,进行排胶至碳含量10000ppm以下。
10.根据权利要求1所述的复合氮化铝陶瓷基板的制备方法,其特征在于:所述烧结步骤包括采用放电等离子烧结的方式对经过排胶步骤后的生坯片进行烧结处理:先将排胶后的物料送入放电等离子烧结炉中加热升温至1300至1350℃,并保持温度30至50分钟,再调整放电等离子烧结炉的炉内压力至25至80Mpa,然后将烧结温度升高至1700至1850度,并保持温度20至30分钟。
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CN107188568A (zh) * | 2017-07-11 | 2017-09-22 | 中国人民大学 | 一种氮化铝陶瓷基板及其制备方法 |
CN108675795A (zh) * | 2018-07-03 | 2018-10-19 | 北京科技大学 | 一种sps烧结制备高导热和高强度氮化铝陶瓷的方法 |
WO2022100249A1 (zh) * | 2020-11-12 | 2022-05-19 | 广东工业大学 | 一种高性能氮化铝陶瓷基板的浆料和制备方法 |
CN114560706A (zh) * | 2022-03-15 | 2022-05-31 | 福建华清电子材料科技有限公司 | 一种高热导氮化铝陶瓷基板的制备方法 |
CN114538932A (zh) * | 2022-03-21 | 2022-05-27 | 福建华清电子材料科技有限公司 | 一种共烧氮化铝陶瓷基板的制备方法 |
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