METHOD FOR PRODUCING SiC SINGLE CRYSTAL
    1.
    发明授权
    METHOD FOR PRODUCING SiC SINGLE CRYSTAL 有权
    用于生产SiC单晶

    公开(公告)号:EP2484815B1

    公开(公告)日:2014-12-24

    申请号:EP10820359.7

    申请日:2010-09-15

    CPC分类号: C30B29/36 C30B9/10 C30B17/00

    摘要: An object of the present invention is to obtain stable growth of SiC single crystals, particularly 4H-SiC single crystals with an effective crystal growth rate for a prolonged time even at a low temperature range of 2000°C or lower. A raw material containing Si, Ti and Ni is charged into a crucible 1 made of graphite and heat-melted to obtain a solvent. At the same time, C is dissolved out from the crucible 1 into the solvent to obtain a melt 6. A SiC seed crystal substrate 8 is then brought into contact with the melt 6 such that SiC is supersaturated in the melt 6 in the vicinity of the surface of the SiC seed crystal substrate 8, thereby allowing growth and production of an SiC single crystal on the SiC seed crystal substrate 8.