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    • 27. 发明授权
    • Method for manufacture of III-V compound semiconducting single crystal
    • 制备III-V化合物半导体单晶的方法
    • US4496424A
    • 1985-01-29
    • US455734
    • 1983-01-05
    • Kazutaka TerashimaTsuguo Fukuda
    • Kazutaka TerashimaTsuguo Fukuda
    • C30B15/20C30B27/02
    • C30B15/20C30B27/02
    • A III-V compound semiconducting single crystal is manufactured by a method using an encapsulant, which method comprises allowing the molten mass of a material for the crystal melted in advance under high pressure to be placed under a pressure lower than the pressure to be exerted during the work of pulling the crystal thereby causing the molten mass to generate bubbles and allowing the departing bubbles to entrain impurities from the molten mass, bringing a seed crystal into contact with the molten mass, applying a potential to the molten mass thereby determining the impurity concentration of the molten mass based on the results of the measurement and, after the impurity concentration of the molten mass determined as described above has reached a prescribed level, initiating the work of pulling the crystal from the molten mass.
    • 通过使用密封剂的方法制造III-V族化合物半导体单晶,该方法包括将在高压下预先熔化的晶体的熔融物质放置在低于要施加的压力的压力下 拉动晶体从而引起熔融物质产生气泡并允许脱出的气泡夹带熔融物质的杂质,使晶种与熔融物质接触,向熔融物质施加电位,从而确定杂质浓度 的熔融质量,并且在如上所述确定的熔融物质的杂质浓度达到规定水平之后,开始从熔融物质中拉出晶体的工作。