公开(公告)号：US20150225238A1

公开(公告)日：2015-08-13

申请号：US14423522

申请日：2013-09-06

Applicant: TOKUYAMA CORPORATION

Inventor： Megumu Tamagaki ,  Yukihiro Kanechika

IPC: C01B21/072

CPC classification number: C01B21/0728 ,  C01P2002/72 ,  C01P2004/03 ,  C01P2004/61 ,  C01P2006/12 ,  C01P2006/80 ,  C01P2006/90 ,  H01L23/3733 ,  H01L23/3737 ,  H01L2924/0002 ,  H01L2924/00

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US6136758A

公开(公告)日：2000-10-24

申请号：US209455

申请日：1998-12-11

Applicant: Kunihiro Yamada ,  Takayuki Takahashi ,  Kenichi Isobe

Inventor： Kunihiro Yamada ,  Takayuki Takahashi ,  Kenichi Isobe

IPC: C01B21/072 ,  C10M113/16 ,  C10M169/00 ,  C10M169/02 ,  C10M107/50

CPC classification number: C10M169/02 ,  C01B21/0728 ,  C10M113/16 ,  C10M169/00 ,  C10M2201/0613 ,  C10M2201/0616 ,  C10M2201/0626 ,  C10M2227/045 ,  C10N2210/02 ,  C10N2210/03 ,  C10N2250/10 ,  C10N2260/00

Abstract: An aluminum nitride powder having the surface treated with an organosilane represented by formula, R.sup.I.sub.a R.sup.II.sub.b SiY.sub.4-1-b, and/or a partial hydrolysis condensate thereof to acquire excellent moisture-proof, wherein R.sup.I represents a 6-20C alkyl group or a group formed by substituting halogen atom or atoms for part or all of the hydrogen atoms attached to carbon atoms of the 6-20C alkyl group, R.sup.II represents a 1-20C hydrocarbon group or a group formed by substituting halogen atom or atoms for part or all of the hydrogen atoms attached to carbon atoms of the 1-20C hydrocarbon group, Y represents a hydrolyzable group, a is an integer of 1 to 3 and b is an integer of 0 to 2, provided that a+b is an integer of 1 to 3; and a thermally conductive grease composition comprising (A) 50-95 weight % of the aforementioned surface-treated aluminum nitride powder and (B) 5 to 50 weight % of at least one base oil selected from the group consisting of liquid silicones, liquid hydrocarbons and fluorohydrocarbon oils, and further, if desired, (C) 0-30 weight % of a thicknener selected from the group consisting of zinc oxide, alumina, boron nitride and silicon carbide powders.

Abstract translation: 具有用式表示的有机硅烷表面处理的氮化铝粉末，RIaRIIbSiY4-1-b和/或其部分水解缩合物，以获得优异的防湿性，其中RI表示6-20C烷基或由 用卤原子或原子取代与6-20C烷基的碳原子连接的部分或全部氢原子，RII表示1-20C的烃基或通过用卤原子或原子取代部分或全部氢 附着于1-20C烃基的碳原子的原子，Y表示可水解基团，a表示1〜3的整数，b表示0〜2的整数，条件是a + b为1〜3的整数。 和导热性润滑脂组合物，其包含（A）50-95重量％的上述表面处理的氮化铝粉末和（B）5至50重量％的至少一种基础油，其选自液体硅酮，液体烃 和氟代烃油，并且如果需要，（C）0-30重量％的选自氧化锌，氧化铝，氮化硼和碳化硅粉末的增稠剂。

公开(公告)号：US5627107A

公开(公告)日：1997-05-06

申请号：US474228

申请日：1995-06-07

Applicant: Kevin E. Howard

Inventor： Kevin E. Howard

IPC: C01B21/072 ,  C04B41/81 ,  C08K9/02 ,  C08K9/06 ,  H01L21/60

CPC classification number: C04B41/81 ,  C01B21/0728 ,  C08K9/02 ,  C08K9/06

Abstract: Semiconductor devices are encapsulated in a thermosetting resin filled with aluminum nitride particles. The aluminum nitride particles have an outer layer of Al-O-N, into which is incorporated amorphous Si-O, which renders them hydrolyrically stable. The aluminum nitride particles impart very high thermal conductivity to the cured resin. In addition, the cured resin has a CTE similar to that of the encapsulated semiconductor device, and has excellent dielectric properties.

Abstract translation: 半导体器件封装在填充有氮化铝颗粒的热固性树脂中。 氮化铝颗粒具有Al-O-N的外层，其中掺入非晶Si-O，使其水解稳定。 氮化铝颗粒对固化树脂赋予非常高的导热性。 此外，固化树脂具有与封装的半导体器件类似的CTE，并且具有优异的介电性能。

公开(公告)号：US5395694A

公开(公告)日：1995-03-07

申请号：US117433

申请日：1993-09-07

Applicant: Kouichi Sogabe ,  Takahiro Matsuura ,  Seiji Nakahata ,  Akira Yamakawa

Inventor： Kouichi Sogabe ,  Takahiro Matsuura ,  Seiji Nakahata ,  Akira Yamakawa

IPC: C01B21/072 ,  C04B35/581 ,  B32B15/04

CPC classification number: C04B35/581 ,  C01B21/072 ,  C01B21/0728 ,  C01P2002/50 ,  C01P2002/82 ,  C01P2004/80 ,  C01P2006/32 ,  Y10T428/265 ,  Y10T428/2982 ,  Y10T428/2991 ,  Y10T428/2993

Abstract: An aluminum nitride powder having a surface layer containing an oxynitride characterized in that the surface layer of the aluminum nitride particle contains an aluminum oxynitride which has an oxygen content of 5 to 75 mol % in terms of Al.sub.2 O.sub.3 /(Al.sub.2 O.sub.3 +AlN). The surface layer of the aluminum nitride powder may contain, besides the aluminum oxynitride, at least one other oxynitride selected from among oxynitrides of Mg, Ca, Ba, Ti, V, Cr, Co, Ni, Cu, Ga, Ge, Zr, Nb, Mo, Ru, Hf, Ta, W, Li, B, Si, Y, Sc and rare metal elements and the aluminum oxynitride and at least one other oxynitride have a total oxygen content in the range of 10 to 75 mol % in terms of (3.times.oxygen amount)/(3.times.oxygen amount+nitrogen amount). The alumina nitride powder can easily be converted into a sintered body having excellent sinterability and favorable characteristics, since the above surface layer reduces the penetration of oxygen from the surface layer into the crystal grains and prevents the formation of microcracks layer.

Abstract translation: 一种具有包含氧氮化物的表面层的氮化铝粉末，其特征在于，氮化铝颗粒的表面层含有以Al 2 O 3 /（Al 2 O 3 + AlN）换算的氧含量为5〜75摩尔％的氮氧化铝。 除了氮氧化铝之外，氮化铝粉末的表面层可以含有选自Mg，Ca，Ba，Ti，V，Cr，Co，Ni，Cu，Ga，Ge，Zr等的氮氧化物中的至少一种氮氧化物， Nb，Mo，Ru，Hf，Ta，W，Li，B，Si，Y，Sc和稀有金属元素和氮氧化铝和至少一种其他氧氮化物的总氧含量在10〜75摩尔％的范围内 （3氧气量）/（3氧气量+氮量）。 氮化铝粉末可以容易地转化为具有优异的可烧结性和良好特性的烧结体，因为上述表面层使氧从表面层渗透到晶粒中并防止形成微裂纹层。

公开(公告)号：US4909973A

公开(公告)日：1990-03-20

申请号：US68947

申请日：1987-07-01

Applicant: Hiroaki Nishio ,  Michitaka Sato

Inventor： Hiroaki Nishio ,  Michitaka Sato

IPC: C01B21/06 ,  C01B21/064 ,  C01B21/068 ,  C01B21/072 ,  C01B21/076 ,  C01B31/30 ,  C01B31/36 ,  C01B35/04 ,  C04B35/56 ,  C04B35/565 ,  C04B35/58 ,  C04B35/584 ,  C04B35/626

CPC classification number: C04B35/65 ,  C01B21/062 ,  C01B21/064 ,  C01B21/0687 ,  C01B21/0728 ,  C01B21/0768 ,  C01B31/30 ,  C01B31/305 ,  C01B31/36 ,  C01B35/04 ,  C04B35/5611 ,  C04B35/563 ,  C04B35/565 ,  C04B35/58007 ,  C04B35/58014 ,  C04B35/58071 ,  C04B35/58078 ,  C04B35/583 ,  C04B35/584 ,  C01P2006/60 ,  C01P2006/80

Abstract: A method for refining powders comprising the steps of: (a) adding polytetrafluoroethylene powders to non-oxide ceramic powders to form a mixture by mixing; and (b) heating the mixture in non-oxidizing atmosphere to convert oxides existing on the surface of the non-oxide ceramic powders into gaseous fluorides, and removing gaseous fluorides. The fluororesin is a polytetrafluoroethylene resin. The heating temperature in the non-oxidizing atmosphere is 500.degree. C. to 1300.degree. C.

Abstract translation: 一种精制粉末的方法，包括以下步骤：（a）将聚四氟乙烯粉末加入到非氧化物陶瓷粉末中以通过混合形成混合物; 和（b）在非氧化性气氛中加热混合物，将非氧化物陶瓷粉末表面上存在的氧化物转化为气态氟化物，并除去气态氟化物。 氟树脂是聚四氟乙烯树脂。 非氧化性气氛中的加热温度为500〜1300℃。

公开(公告)号：US3653830A

公开(公告)日：1972-04-04

申请号：US3653830D

申请日：1970-04-27

Applicant: TOKYO SHIBAURA ELECTRIC CO

Inventor： KOMEYA KATSUTOSHI ,  INOUE HIROSHI

IPC: C01B21/072 ,  C04B35/581 ,  C30B25/00 ,  C01F7/00 ,  C01B21/06

CPC classification number: C30B29/403 ,  C01B21/0722 ,  C01B21/0728 ,  C01P2004/10 ,  C01P2004/54 ,  C01P2004/61 ,  C04B35/581 ,  C30B25/005 ,  Y10S264/19

Abstract: A method for manufacturing aluminum nitride fibers which comprises heating a mixture of aluminum nitride powders and aluminum powders to a temperature of 580* to 1,000* C. in an atmosphere consisting of nitrogen or ammonia gas with addition of halogens which creates an exothermic nitrification of aluminum heating the charge to above 2,000* C. and forming aluminum nitride fibers in high yield.

Abstract translation: 一种氮化铝纤维的制造方法，其特征在于，在由氮或氨气组成的气氛中加入氮化铝粉末和铝粉末的混合物至580℃〜1000℃，同时加入卤素，产生铝的放热硝化 将电荷加热至2000℃以上，高收率地形成氮化铝纤维。

公开(公告)号：US11945717B2

公开(公告)日：2024-04-02

申请号：US16734908

申请日：2020-01-06

Applicant: FUJIFILM Corporation

Inventor： Seiichi Hitomi ,  Keita Takahashi ,  Naoyuki Hayashi

IPC: C01B21/064 ,  C01B21/072 ,  C08K3/38 ,  C08K9/04 ,  C08L63/00

CPC classification number: C01B21/0648 ,  C01B21/0728 ,  C08K3/38 ,  C08K9/04 ,  C08L63/00 ,  C01P2002/84 ,  C08K2003/382 ,  C08K2201/001

Abstract: An object of the present invention is to provide a surface-modified inorganic nitride having excellent dispersibility. Furthermore, another object of the present invention is to provide a composition, a thermally conductive material, and a device with a thermally conductive layer which contain the surface-modified inorganic nitride.
The surface-modified inorganic nitride of the present invention includes an inorganic nitride, and a compound which is represented by General Formula (I) and is adsorbed onto a surface of the inorganic nitride.

公开(公告)号：US20140061530A1

公开(公告)日：2014-03-06

申请号：US14004851

申请日：2012-04-27

Applicant: Hideki Ohno ,  Meng Wang ,  Megumu Tamagaki

Inventor： Hideki Ohno ,  Meng Wang ,  Megumu Tamagaki

IPC: C09K5/14

CPC classification number: C09K5/14 ,  C01B21/0728 ,  C01P2002/80 ,  C01P2004/61 ,  C01P2004/62 ,  C01P2006/12 ,  C01P2006/22 ,  C01P2006/32 ,  C01P2006/90 ,  H01L23/3731 ,  H01L2924/0002 ,  H01L2924/00

Abstract: The present invention relates to a method of manufacturing water resistant aluminum nitride powder, the method comprises; in a solvent, performing phosphoric acid compound treatment in which at least one phosphoric acid compound selected from the group consisting of phosphoric acid, metal salts of phosphoric acid and organic phosphoric acid having an organic group with 12 or less carbon atoms is contacted with aluminum nitride powder dispersed in the solvent so that the ratio of median diameter/primary particle diameter is 1.4 to 5, thereby the phosphoric acid compound is present on the surface of the aluminum nitride powder at a rate of 0.5 to 10 mg/m2 in the orthophosphoric acid ion equivalence.

Abstract translation: 本发明涉及一种制造耐水氮化铝粉末的方法，该方法包括： 在溶剂中进行磷酸化合物处理，其中选自磷酸，磷酸金属盐和具有12个或更少碳原子的有机基团的有机磷酸的至少一种磷酸化合物与氮化铝接触 粉末分散在溶剂中，使得中值粒径/一次粒径的比例为1.4〜5，磷酸化合物在正磷酸中以0.5〜10mg / m 2的比例存在于氮化铝粉末的表面 离子等价。

公开(公告)号：US08357345B1

公开(公告)日：2013-01-22

申请号：US13237076

申请日：2011-09-20

Applicant: Yang-Kuao Kuo ,  Chia-Yi Hsiang ,  Ching-Hui ChiangLin ,  Te-Po Liu

Inventor： Yang-Kuao Kuo ,  Chia-Yi Hsiang ,  Ching-Hui ChiangLin ,  Te-Po Liu

IPC: C01B21/072 ,  C23C14/08 ,  C23C14/00 ,  C04B35/00 ,  B01D5/00

CPC classification number: C01B21/0728 ,  C04B35/581 ,  C04B41/0072 ,  C04B41/009 ,  C04B41/80 ,  C04B2235/664 ,  C04B2235/723 ,  C04B41/4517 ,  C04B41/53

Abstract: Disclosed is a method for removing oxygen from aluminum nitride by carbon. At first, an oven is provided. An aluminum nitride substrate is located in the oven. Nitrogen is introduced into the oven to form an atmosphere of nitrogen. The temperature is increased to the transformation point of the aluminum nitride substrate in the oven. Then, the heating is stopped and quenching is conducted in the oven. Carbon is introduced into the oven in the quenching. Thus, oxygen included in the aluminum nitride substrate reacts with the carbon to produce carbon monoxide or carbon dioxide. The carbon monoxide or carbon is released from the oven as well as the nitrogen. Thus, the aluminum nitride substrate is purified.

Abstract translation: 公开了一种通过碳从氮化铝除去氧的方法。 首先，提供烤箱。 氮化铝衬底位于烤箱中。 将氮气引入烘箱中以形成氮气氛。 温度升高到烘箱中的氮化铝衬底的相变点。 然后停止加热并在烘箱中进行淬火。 在淬火中将碳引入烘箱中。 因此，包含在氮化铝衬底中的氧与碳反应以产生一氧化碳或二氧化碳。 一氧化碳或碳从烤箱以及氮气中释放出来。 因此，纯化氮化铝衬底。

公开(公告)号：US5459113A

公开(公告)日：1995-10-17

申请号：US189767

申请日：1994-02-01

Applicant: Toshio Nozaki ,  Seigo Ohiwa ,  Hiroshi Iwase ,  Masanori Oguni

Inventor： Toshio Nozaki ,  Seigo Ohiwa ,  Hiroshi Iwase ,  Masanori Oguni

IPC: C01B21/072 ,  C04B35/581

CPC classification number: C04B35/581 ,  C01B21/0728 ,  C01P2006/60

Abstract: A sinterable aluminum nitride powder composition is prepared by adding about 0.05-10.0 parts by weight of at least one compound selected from the group consisting of calcium tungstate and calcium molybdate and optionally about 1.0-7.0 parts by weight of at least one compound selected from the group consisting of yttria, calcium oxide, and calcium carbonate to 100 parts by weight of an aluminum nitride powder prepared by the alumina reduction method without decarbonization and having a residual carbon content of about 2%-10% by weight. The resulting powdery composition is subjected to mixing and deagglomeration in a dry process so as to form a powder mixture having a bulk density of about 0.3-0.5 g/cm.sup.3, and then to decarbonization by heating in an oxidizing atmosphere. The aluminum nitride powder composition has a pressurized bulk density of about 1.50-1.75 g/cm.sup.3 as measured at a pressure of 500 kg/cm.sup.2 and an average particle diameter of about 1.0-3.0 .mu.m in which particles having a diameter of 5 .mu.m or larger comprise not greater than about 10% by weight of the powder composition. It is capable of forming a colored sintered body with little or no unevenness of color and sintering, and is also capable of forming green sheets which can be used in the manufacture of a multilayered substrate by the green sheet laminating technology with a minimized tendency toward delamination during sintering.

Abstract translation: 通过加入约0.05-10.0重量份的选自钨酸钙和钼酸钙的至少一种化合物和任选地约1.0-7.0重量份的至少一种选自下列的化合物，制备可烧结的氮化铝粉末组合物： 由氧化钇，氧化钙和碳酸钙组成的组合物与100重量份通过氧化铝还原法制备的氮化铝粉末而不进行脱碳，并且残余碳含量为约2重量％-10重量％。 将所得粉末状组合物在干法中进行混合和解聚，以形成堆积密度为约0.3-0.5g / cm 3的粉末混合物，然后在氧化气氛中加热脱碳。 氮化铝粉末组合物在500kg / cm 2的压力下测量的加压堆积密度为约1.50-1.75g / cm 3，平均粒径为约1.0-3.0μm，其中直径为5μm的颗粒 或更大包含不大于粉末组合物的约10重量％。 能够形成具有很少或没有颜色不均匀和烧结的着色烧结体，并且还能够形成生坯片，其可以通过生坯层压技术以最小化的分层倾向形成用于制造多层基材的生片 在烧结过程中。