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A platform for research: civil engineering, architecture and urbanism
RESIN-IMPREGNATED BORON NITRIDE SINTERED BODY AND USE THEREOF
PROBLEM TO BE SOLVED: To provide a heat radiation member having excellent heat resistance and adhesiveness, which can be used suitably as a heat radiation member for a heat generating electronic component such as a power device, in particular for an insulation layer and a heat interface material of a print circuit board, and for an in-wheel motor and a power module for a car.SOLUTION: There is provided a resin-impregnated boron nitride sintered body comprising 30 to 90 vol% of a boron nitride sintered body (1) having boron nitride particles bonded three-dimensionally and 70 to 10 vol% of a resin (2). In the boron nitride sintered body, a porosity is 10 to 70%, an average length of a boron nitride particle is 10 μm or more, a graphitization index (GI) according to powder X-ray diffractometry is 4.0 or less, a degree of orientation by I.O.P. (The Index of Orientation Performance) is 0.01 to 0.05 or 20 to 100. The resin-impregnated boron nitride sintered body has through-holes and the sites of through-holes are impregnated with the resin.
【課題】パワーデバイスなどの発熱性電子部品の放熱部材として好適に用いられ、特にプリント配線板の絶縁層、熱インターフェース材及び自動車用インホイールモーターやパワーモジュールに用いられる、熱抵抗及び接着性に優れた放熱部材の提供。【解決手段】窒化ホウ素粒子が３次元に結合した窒化ホウ素焼結体（１）３０〜９０体積％と樹脂（２）７０〜１０体積％からなり、窒化ホウ素焼結体の気孔率が１０〜７０％、窒化ホウ素焼結体の窒化ホウ素粒子の平均長径が１０μｍ以上、粉末Ｘ線回折法による黒鉛化指数（ＧＩ、Ｇｒａｐｈｉｔｉｚａｔｉｏｎ Ｉｎｄｅｘ）が４．０以下であり、窒化ホウ素焼結体の窒化ホウ素粒子のＩ．Ｏ．Ｐ．（Ｔｈｅ Ｉｎｄｅｘ ｏｆ Ｏｒｉｅｎｔａｔｉｏｎ Ｐｅｒｆｏｒｍａｎｃｅ）による配向度が０．０１〜０．０５又は２０〜１００であり、貫通穴を有し、貫通穴の部位が樹脂で充填された樹脂含浸窒化ホウ素焼結体。【選択図】図１
RESIN-IMPREGNATED BORON NITRIDE SINTERED BODY AND USE THEREOF
PROBLEM TO BE SOLVED: To provide a heat radiation member having excellent heat resistance and adhesiveness, which can be used suitably as a heat radiation member for a heat generating electronic component such as a power device, in particular for an insulation layer and a heat interface material of a print circuit board, and for an in-wheel motor and a power module for a car.SOLUTION: There is provided a resin-impregnated boron nitride sintered body comprising 30 to 90 vol% of a boron nitride sintered body (1) having boron nitride particles bonded three-dimensionally and 70 to 10 vol% of a resin (2). In the boron nitride sintered body, a porosity is 10 to 70%, an average length of a boron nitride particle is 10 μm or more, a graphitization index (GI) according to powder X-ray diffractometry is 4.0 or less, a degree of orientation by I.O.P. (The Index of Orientation Performance) is 0.01 to 0.05 or 20 to 100. The resin-impregnated boron nitride sintered body has through-holes and the sites of through-holes are impregnated with the resin.
【課題】パワーデバイスなどの発熱性電子部品の放熱部材として好適に用いられ、特にプリント配線板の絶縁層、熱インターフェース材及び自動車用インホイールモーターやパワーモジュールに用いられる、熱抵抗及び接着性に優れた放熱部材の提供。【解決手段】窒化ホウ素粒子が３次元に結合した窒化ホウ素焼結体（１）３０〜９０体積％と樹脂（２）７０〜１０体積％からなり、窒化ホウ素焼結体の気孔率が１０〜７０％、窒化ホウ素焼結体の窒化ホウ素粒子の平均長径が１０μｍ以上、粉末Ｘ線回折法による黒鉛化指数（ＧＩ、Ｇｒａｐｈｉｔｉｚａｔｉｏｎ Ｉｎｄｅｘ）が４．０以下であり、窒化ホウ素焼結体の窒化ホウ素粒子のＩ．Ｏ．Ｐ．（Ｔｈｅ Ｉｎｄｅｘ ｏｆ Ｏｒｉｅｎｔａｔｉｏｎ Ｐｅｒｆｏｒｍａｎｃｅ）による配向度が０．０１〜０．０５又は２０〜１００であり、貫通穴を有し、貫通穴の部位が樹脂で充填された樹脂含浸窒化ホウ素焼結体。【選択図】図１
RESIN-IMPREGNATED BORON NITRIDE SINTERED BODY AND USE THEREOF
樹脂含浸窒化ホウ素焼結体およびその用途
NONAKA SHUHEI (author) / HIROTSURU HIDEKI (author) / NISHI HIROKI (author) / INOUE SAORI (author)
2015-07-06
Patent
Electronic Resource
Japanese
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