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    • 10. 发明专利
    • Method for producing plasma-proof fluoride sintered compact
    • 生产等离子体氟化物烧结的方法
    • JP2011001198A
    • 2011-01-06
    • JP2009142911
    • 2009-06-16
    • Daiko Seisakusho:Kk株式会社大興製作所
    • NAKAMURA TETSUYUKISHIGEOKA TAKUJI
    • C04B35/553C04B35/64H01L21/31
    • PROBLEM TO BE SOLVED: To provide a method for producing a fluoride sintered compact suitable for a component required for high plasma-proof characteristics in an apparatus for producing a silicon semiconductor, a compound semiconductor and the like.SOLUTION: The method for producing the fluoride sintered compact includes: a step to mix 1-5 wt.% of a high purity MgFpowder with a high purity CaFpowder and further add and mix 0.1-1 wt.% of a sintering auxiliary agent; a molding step at a press pressure of 0.2 MPa/cmor more using a mold and a press-molding machine; a step to temporarily sinter the molded material by heating at 600-700°C in the atmosphere; and a step to form a CaF-MgFbinary sintered compact having a dense structure by heating at 1,250-1,370°C for 6-12 hours in the atmosphere.
    • 要解决的问题:提供一种适用于制造硅半导体,化合物半导体等的高等离子体特性所需的成分的氟化物烧结体的制造方法。 烧结体包括:将1-5重量%的高纯度MgF粉末与高纯度CaFfder混合的步骤,并进一步加入和混合0.1-1重量%的烧结助剂; 使用模具和压力成型机进行压力压力为0.2MPa / cm 2以上的成型工序; 通过在大气中在600-700℃下加热来临时烧结成型材料的步骤; 以及通过在大气中在1,250-137℃加热6-12小时形成具有致密结构的CaF-MgFbinary烧结体的步骤。