摘要:
The present invention provides a gallium nitride sintered body and a gallium nitride molded article which have high density and low oxygen content without using a special apparatus. According to the first embodiment, a gallium nitride sintered body, which is characterized by having density of 2.5 g/cm 3 to less than 5.0 g/cm 3 and an intensity ratio of the gallium oxide peak of the (002) plane to the gallium nitride peak of the (002) plane of less than 3%, which is determined by X-ray diffraction analysis, can be obtained. According to the second embodiment, a metal gallium-impregnated gallium nitride molded article, which is characterized by comprising a gallium nitride phase and a metal gallium phase that exist as separate phases and having a molar ratio, Ga/(Ga + N), of 55% to 80%, can be obtained.
摘要翻译:本发明提供一种氮化镓烧结体和氮化镓成型品,它们不需要专门的设备就可以实现高密度和低氧含量。 根据第一实施方案,氮化镓烧结体的特征在于密度为2.5g / cm 3至小于5.0g / cm 3,并且(002)面与镓的氧化镓峰的强度比 可以获得通过X射线衍射分析确定的(002)面的氮化物的小于3%的峰。 根据第二实施例,一种金属镓浸渍的氮化镓模制品,其特征在于包括作为分离相存在的氮化镓相和金属镓相,其摩尔比Ga /(Ga + N)为 55%〜80%。
摘要:
Provided is a cylindrical ceramic sputtering target, which significantly reduces the occurrence of a crack, a chip, extraordinary discharge and a nodule. By filling a molten bonding material in a cavity defined by a cylindrical ceramic target material and a cylindrical base material, starting cooling the molten bonding material from its one end toward its other end in a cylindrical axial direction in sequence, and further filling the molten bonding material in the cavity during cooling, a cylindrical ceramic sputtering target is manufactured so as to be characterized in that as observed by an X-ray radiograph of the bonding material, the total area of portions where no bonding material exists is 10 cm 2 or less per 50 cm 2 of X-ray radiograph area, and the maximum area of the portions where no bonding material exists is 9 cm 2 or less.
摘要:
Provided is a cylindrical ceramic sputtering target, which significantly reduces the occurrence of a crack, a chip, extraordinary discharge and a nodule. By filling a molten bonding material in a cavity defined by a cylindrical ceramic target material and a cylindrical base material, starting cooling the molten bonding material from its one end toward its other end in a cylindrical axial direction in sequence, and further filling the molten bonding material in the cavity during cooling, a cylindrical ceramic sputtering target is manufactured so as to be characterized in that as observed by an X-ray radiograph of the bonding material, the total area of portions where no bonding material exists is 10 cm 2 or less per 50 cm 2 of X-ray radiograph area, and the maximum area of the portions where no bonding material exists is 9 cm 2 or less.
摘要:
The present invention provides a gallium nitride sintered body and a gallium nitride molded article which have high density and low oxygen content without using a special apparatus. According to the first embodiment, a gallium nitride sintered body, which is characterized by having density of 2.5 g/cm 3 to less than 5.0 g/cm 3 and an intensity ratio of the gallium oxide peak of the (002) plane to the gallium nitride peak of the (002) plane of less than 3%, which is determined by X-ray diffraction analysis, can be obtained. According to the second embodiment, a metal gallium-impregnated gallium nitride molded article, which is characterized by comprising a gallium nitride phase and a metal gallium phase that exist as separate phases and having a molar ratio, Ga/(Ga + N), of 55% to 80%, can be obtained.
摘要:
The present invention provides a gallium nitride sintered body and a gallium nitride molded article which have high density and low oxygen content without using a special apparatus. According to the first embodiment, a gallium nitride sintered body, which is characterized by having density of 2.5 g/cm 3 to less than 5.0 g/cm 3 and an intensity ratio of the gallium oxide peak of the (002) plane to the gallium nitride peak of the (002) plane of less than 3%, which is determined by X-ray diffraction analysis, can be obtained. According to the second embodiment, a metal gallium-impregnated gallium nitride molded article, which is characterized by comprising a gallium nitride phase and a metal gallium phase that exist as separate phases and having a molar ratio, Ga/(Ga + N), of 55% to 80%, can be obtained.
摘要:
The present invention provides a gallium nitride molded article which have high density and low oxygen content without using a special apparatus. More particularly, the present invention provides a metal gallium-impregnated gallium nitride molded article which is characterized by comprising a gallium nitride phase and a metal gallium phase that exist as separate phases and having a molar ratio, Ga/(Ga + N), of 55% to 80%, can be obtained.
摘要:
To provide a cylindrical sputtering target, whereby cracking during sputtering can be remarkably reduced. A cylindrical sputtering target, wherein a cylindrical target material made of ITO or AZO has a relative density of at least 90%; the angle between the grinding direction on its outer circumferential surface and a straight line parallel with its cylindrical axis (out of such angles, θ represents an angle between 0° and 90°) satisfies 45° πR/L (where R is an outside diameter of the cylindrical target material, and L is the length of the cylindrical target material); and the surface roughness Ra of the outer circumferential surface of the cylindrical target material is at most 3 µm.