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1. 发明授权

US11097948B2 Nitride aluminum particle 有权
公开(公告)号：US11097948B2
公开(公告)日：2021-08-24
申请号：US16073608
申请日：2017-01-25
申请人： TOKUYAMA CORPORATION
发明人： Akimasa Kuramoto , Kikuo Yamamoto , Mou Ou , Saiko Fujii , Yukihiro Kanechika , Teruhiko Nawata
IPC分类号： C01B21/072 , C08K3/28 , C08L101/00 , C09C1/40
摘要： To provide an aluminum nitride particle having a hexagonal columnar barrel part and bowl-like projection parts at both ends of the columnar part, wherein the long diameter (D) of the barrel part is 10 to 250 μm, the ratio (L1/D) of the distance (L1) between the apexes of the two projection pars to the long diameter (D) of the barrel part is 0.7 to 1.3, and the percentage of the length or thickness (L2) of the barrel part to the distance (L1) between the apexes of the two projection parts is 10 to 60%. The aluminum nitride particle can provide high heat conductivity and excellent electric insulation to a resin when it is filled into the resin.

2. 发明申请

US20150284296A1 METAL/CERAMIC BONDING SUBSTRATE AND METHOD FOR PRODUCING SAME 有权
标题翻译：金属/陶瓷接合基板及其制造方法
公开(公告)号：US20150284296A1
公开(公告)日：2015-10-08
申请号：US14443505
申请日：2012-11-20
申请人： DOWA METALTECH CO., LTD. , TOKUYAMA CORPORATION
发明人： Hideyo Osanai , Yukihiro Kitamura , Hiroto Aoki , Yukihiro Kanechika , Ken Sugawara , Yasuko Takeda
IPC分类号： C04B37/02 , B32B18/00 , C04B35/581 , B32B15/04 , C04B41/91 , B23K1/19
CPC分类号： C04B37/02 , B23K1/19 , B32B15/04 , B32B18/00 , C04B35/581 , C04B37/026 , C04B41/91 , C04B2235/96 , C04B2235/963 , C04B2237/125 , C04B2237/127 , C04B2237/366 , C04B2237/407 , C04B2237/52 , C04B2237/704 , C04B2237/706 , H01L23/3735 , H01L2924/0002 , H05K1/0306 , H05K3/022 , H05K3/38 , Y10T428/24355 , H01L2924/00
摘要： After a wet blasting treatment for jetting a slurry, which contains spherical alumina as abrasive grains in a liquid, to the surface of a ceramic substrate 10 of aluminum nitride sintered body so that the ceramic substrate 10 has a residual stress of not higher than −50 MPa and so that the surface of the ceramic substrate 10 to be bonded to the metal plate 14 has an arithmetic average roughness Ra of 0.15 to 0.30 μm, a ten-point average roughness Rz of 0.7 to 1.1 μm and a maximum height Ry of 0.9 to 1.7 μm while causing the ceramic substrate to have a flexural strength of not higher than 500 MPa and causing the thickness of a residual stress layer 10a formed along the surface of the ceramic substrate 10 to be 25 μm or less, the metal plate 14 of copper or a copper alloy is bonded to the ceramic substrate 10, which is obtained by the wet blasting treatment, via a brazing filler metal 12 to produce a metal/ceramic bonding substrate which has an excellent bonding strength of the ceramic substrate 10 to the metal plate 14 and which has an excellent heat cycle resistance.
摘要翻译：在将含有液体中的作为磨粒的球状氧化铝的浆料喷射到氮化铝烧结体的陶瓷基板10的表面的湿式喷砂处理之后，陶瓷基板10具有不高于-50的残余应力并且使得与金属板14接合的陶瓷基板10的表面的算术平均粗糙度Ra为0.15〜0.30μm，十点平均粗糙度Rz为0.7〜1.1μm，最大高度Ry为0.9 使陶瓷基板具有不高于500MPa的弯曲强度，并使沿陶瓷基板10的表面形成的残余应力层10a的厚度为25μm以下，金属板14为通过钎焊金属12将铜或铜合金结合到通过湿式喷砂处理获得的陶瓷基板10上，以制造具有优异的陶瓷结合强度的金属/陶瓷接合基板并且具有优异的耐热循环性。

3. 发明授权

US09399577B2 Method for producing water-resistant aluminum nitride powder 有权
标题翻译：生产耐水氮化铝粉末的方法
公开(公告)号：US09399577B2
公开(公告)日：2016-07-26
申请号：US14423522
申请日：2013-09-06
申请人： TOKUYAMA CORPORATION
发明人： Megumu Tamagaki , Yukihiro Kanechika
IPC分类号： H01L23/373 , C01B21/072
CPC分类号： C01B21/0728 , C01P2002/72 , C01P2004/03 , C01P2004/61 , C01P2006/12 , C01P2006/80 , C01P2006/90 , H01L23/3733 , H01L23/3737 , H01L2924/0002 , H01L2924/00
摘要： Provided is a method for producing a water-resistant aluminum nitride powder capable of adding a good water-resistant property to an aluminum nitride powder wherein yttria exists on a particle surface. The method is for producing a water-resistant aluminum nitride powder by carrying out a treatment to a particle surface of an aluminum nitride powder, the method including the successive steps of (i) making an aluminum nitride powder contact with an acid solution wherein yttria exists at least on a particle surface of the aluminum nitride powder; and (ii) making the aluminum nitride powder contact with a phosphorous acid compound, wherein the amount of yttria which is extracted when the aluminum nitride powder is filtered, washed with water, and dried after the step (i) and is thereafter subjected to extraction with 1 mol/L hydrochloric acid is no more than 1000 mg per 100 g of the aluminum nitride powder.
摘要翻译：本发明提供一种能够在氮化铝粉末中添加良好的耐水性的耐水性氮化铝粉末的制造方法，其中氧化钇存在于粒子表面上。该方法是通过对氮化铝粉末的颗粒表面进行处理来生产耐水氮化铝粉末，该方法包括以下步骤：（i）使氮化铝粉末与存在氧化钇的酸溶液接触至少在氮化铝粉末的颗粒表面上; 和（ii）使氮化铝粉末与亚磷酸化合物接触，其中当氮化铝粉末被过滤时提取的氧化钇的量用水洗涤，并且在步骤（i）之后干燥，然后进行萃取 1mol / L盐酸不足1000mg / 100g氮化铝粉末。

4. 发明申请

US20150376009A1 Method for Producing Sintered Aluminum Nitride Granules 有权
标题翻译：生产烧结氮化铝颗粒的方法
公开(公告)号：US20150376009A1
公开(公告)日：2015-12-31
申请号：US14763845
申请日：2013-02-04
申请人： TOKUYAMA CORPORATION
发明人： Yutaka Fukunaga , Yukihiro Kanechika
IPC分类号： C01B21/072 , C09K5/14
CPC分类号： C01B21/0726 , C01B21/072 , C01B21/0728 , C01P2004/03 , C01P2004/50 , C01P2004/61 , C01P2006/12 , C09K5/14
摘要： A method for producing sintered aluminum nitride granules includes a reduction nitridation step of carrying out the reduction nitridation of porous alumina granules at a temperature of 1400 to 1700° C. inclusive to produce porous aluminum nitride granules; and a sintering step of sintering the porous aluminum nitride granules, which are produced in the reduction nitridation step, at a temperature of 1580 to 1900° C. inclusive.
摘要翻译：制造氮化铝烧结体颗粒的方法包括在1400〜1700℃的温度下进行多孔氧化铝颗粒的还原氮化的还原氮化工序，制造多孔氮化铝颗粒; 以及在还原氮化步骤中制造的多孔氮化铝颗粒在1580〜1900℃的温度下烧结的烧结工序。

5. 发明申请

US20150086467A1 Method for Producing Aluminum Nitride Powder 有权
标题翻译：生产氮化铝粉的方法
公开(公告)号：US20150086467A1
公开(公告)日：2015-03-26
申请号：US14373996
申请日：2013-03-27
申请人： Tokuyama Corporation
发明人： Yutaka Fukunaga , Yukihiro Kanechika
IPC分类号： C01B21/072
CPC分类号： C01B21/0726 , C01B21/0722 , C01P2004/30 , C01P2004/61 , C01P2006/12
摘要： A method for producing an aluminum nitride powder includes mixing an alumina powder having an average particle diameter of not more than 5 μm; an eutectic melting agent; and a carbon powder are mixed to obtain a mixture thereof, and reductively nitriding the mixture by firing at a higher temperature than a melting point of the eutectic melting agent, while maintaining a nitrogen ratio within a range of 60 to 85 vol % in an atmosphere of mixed gases of nitrogen and carbon monoxide until a nitriding ratio of the alumina powder reaches at least 50%.
摘要翻译：制造氮化铝粉末的方法包括混合平均粒径不大于5μm的氧化铝粉末; 共熔熔剂; 并将碳粉混合以获得其混合物，并且通过在比共晶熔融剂的熔点高的温度下进行烧结将该混合物还原氮化，同时在气氛中保持氮比在60至85体积％的范围内的氮和一氧化碳的混合气体，直到氧化铝粉末的氮化比达到至少50％。

6. 发明授权

US09944565B2 Metal/ceramic bonding substrate and method for producing same 有权
公开(公告)号：US09944565B2
公开(公告)日：2018-04-17
申请号：US14443505
申请日：2012-11-20
申请人： DOWA METALTECH CO., LTD , TOKUYAMA CORPORATION
发明人： Hideyo Osanai , Yukihiro Kitamura , Hiroto Aoki , Yukihiro Kanechika , Ken Sugawara , Yasuko Takeda
IPC分类号： B21D39/00 , C04B37/02 , H05K1/03 , H05K3/02 , H01L23/373 , B23K1/19 , B32B15/04 , B32B18/00 , C04B35/581 , C04B41/91 , H05K3/38
CPC分类号： C04B37/02 , B23K1/19 , B32B15/04 , B32B18/00 , C04B35/581 , C04B37/026 , C04B41/91 , C04B2235/96 , C04B2235/963 , C04B2237/125 , C04B2237/127 , C04B2237/366 , C04B2237/407 , C04B2237/52 , C04B2237/704 , C04B2237/706 , H01L23/3735 , H01L2924/0002 , H05K1/0306 , H05K3/022 , H05K3/38 , Y10T428/24355 , H01L2924/00
摘要： After a wet blasting treatment for jetting a slurry, which contains spherical alumina as abrasive grains in a liquid, to the surface of a ceramic substrate 10 of aluminum nitride sintered body so that the ceramic substrate 10 has a residual stress of not higher than −50 MPa and so that the surface of the ceramic substrate 10 to be bonded to the metal plate 14 has an arithmetic average roughness Ra of 0.15 to 0.30 μm, a ten-point average roughness Rz of 0.7 to 1.1 μm and a maximum height Ry of 0.9 to 1.7 μm while causing the ceramic substrate to have a flexural strength of not higher than 500 MPa and causing the thickness of a residual stress layer 10a formed along the surface of the ceramic substrate 10 to be 25 μm or less, the metal plate 14 of copper or a copper alloy is bonded to the ceramic substrate 10, which is obtained by the wet blasting treatment, via a brazing filler metal 12 to produce a metal/ceramic bonding substrate which has an excellent bonding strength of the ceramic substrate 10 to the metal plate 14 and which has an excellent heat cycle resistance.

7. 发明授权

US09145301B2 Method for producing aluminum nitride powder 有权
标题翻译：氮化铝粉末的制造方法
公开(公告)号：US09145301B2
公开(公告)日：2015-09-29
申请号：US14373996
申请日：2013-03-27
申请人： Tokuyama Corporation
发明人： Yutaka Fukunaga , Yukihiro Kanechika
IPC分类号： C01B21/072
CPC分类号： C01B21/0726 , C01B21/0722 , C01P2004/30 , C01P2004/61 , C01P2006/12
摘要： A method for producing an aluminum nitride powder includes mixing an alumina powder having an average particle diameter of not more than 5 μm; an eutectic melting agent; and a carbon powder are mixed to obtain a mixture thereof, and reductively nitriding the mixture by firing at a higher temperature than a melting point of the eutectic melting agent, while maintaining a nitrogen ratio within a range of 60 to 85 vol % in an atmosphere of mixed gases of nitrogen and carbon monoxide until a nitriding ratio of the alumina powder reaches at least 50%.
摘要翻译：制造氮化铝粉末的方法包括混合平均粒径不大于5μm的氧化铝粉末; 共熔熔剂; 并将碳粉混合以获得其混合物，并且通过在比共晶熔融剂的熔点高的温度下进行烧结将该混合物还原氮化，同时在气氛中保持氮比在60至85体积％的范围内的氮和一氧化碳的混合气体，直到氧化铝粉末的氮化比达到至少50％。

8. 发明申请

US20150225238A1 METHOD FOR PRODUCING WATER-RESISTANT ALUMINUM NITRIDE POWDER 有权
标题翻译：生产耐水性氮化铝粉的方法
公开(公告)号：US20150225238A1
公开(公告)日：2015-08-13
申请号：US14423522
申请日：2013-09-06
申请人： TOKUYAMA CORPORATION
发明人： Megumu Tamagaki , Yukihiro Kanechika
IPC分类号： C01B21/072
CPC分类号： C01B21/0728 , C01P2002/72 , C01P2004/03 , C01P2004/61 , C01P2006/12 , C01P2006/80 , C01P2006/90 , H01L23/3733 , H01L23/3737 , H01L2924/0002 , H01L2924/00
摘要： Provided is a method for producing a water-resistant aluminum nitride powder capable of adding a good water-resistant property to an aluminum nitride powder wherein yttria exists on a particle surface. The method is for producing a water-resistant aluminum nitride powder by carrying out a treatment to a particle surface of an aluminum nitride powder, the method including the successive steps of (i) making an aluminum nitride powder contact with an acid solution wherein yttria exists at least on a particle surface of the aluminum nitride powder; and (ii) making the aluminum nitride powder contact with a phosphorous acid compound, wherein the amount of yttria which is extracted when the aluminum nitride powder is filtered, washed with water, and dried after the step (i) and is thereafter subjected to extraction with 1 mol/L hydrochloric acid is no more than 1000 mg per 100 g of the aluminum nitride powder.
摘要翻译：本发明提供一种能够在氮化铝粉末中添加良好的耐水性的耐水性氮化铝粉末的制造方法，其中氧化钇存在于粒子表面上。该方法是通过对氮化铝粉末的颗粒表面进行处理来生产耐水氮化铝粉末，该方法包括以下步骤：（i）使氮化铝粉末与存在氧化钇的酸溶液接触至少在氮化铝粉末的颗粒表面上; 和（ii）使氮化铝粉末与亚磷酸化合物接触，其中当氮化铝粉末被过滤时提取的氧化钇的量用水洗涤，并且在步骤（i）之后干燥，然后进行萃取 1mol / L盐酸不足1000mg / 100g氮化铝粉末。

9. 发明授权

US11661494B2 Aluminum nitride particles 有权
公开(公告)号：US11661494B2
公开(公告)日：2023-05-30
申请号：US17431966
申请日：2020-03-10
申请人： TOKUYAMA CORPORATION
发明人： Akimasa Kuramoto , Yukihiro Kanechika
IPC分类号： C08K3/28 , C01B21/072
CPC分类号： C08K3/28 , C01B21/0726 , C01P2004/03 , C01P2006/12 , C08K2003/282 , C08K2201/006
摘要： An aluminum nitride particle including at least a first truncated six-sided pyramid (1-a) and a second truncated six-sided pyramid (1-b), the aluminum nitride particle having a shape such that a lower base (3) of the first truncated six-sided pyramid (1-a) and a lower base (3) of the second truncated six-sided pyramid (1-b) face each other, the first truncated six-sided pyramid (1-a) and the second truncated six-sided pyramid (1-b) each having an upper base (2) with an area S1 of not less than 60 μm2 and not more than 4800 μm2, and each having a ratio (S1/S2) of the area S1 to an area S2 of the lower base (3) being not less than 0.5 and less than 1, the first truncated six-sided pyramid (1-a) and the second truncated six-sided pyramid (1-b) respectively having a height h1 and a height h2 each being not less than 5 μm and not more than 20 μm.

10. 发明授权

US11325830B2 Aluminum nitride particle 有权
公开(公告)号：US11325830B2
公开(公告)日：2022-05-10
申请号：US16608576
申请日：2018-04-27
申请人： TOKUYAMA CORPORATION
发明人： Akimasa Kuramoto , Yukihiro Kanechika
IPC分类号： C01B21/072 , C08K3/28
摘要： An aluminum nitride particle including: a plurality of planes randomly arranged in a surface of the particle, the plurality of planes forming an obtuse ridge part or an obtuse valley part in the surface of the particle, the plurality of planes being observable in a scanning electron micrograph with 500 times magnification; wherein the particle has a longer diameter L of 20 to 200 μm; a ratio L/D of the longer diameter L (unit: μm) to a shorter diameter D (unit: μm) of the particle is 1 to 1.25; and the plurality of planes comprise a first plane, wherein an area S (unit: μm2) of the first plane satisfies S/L≥1.0 μm.

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