Method for manufacturing a semiconductor silicon carbide on insulator substrate (SOI) and apparatus therefore
    1.
    发明公开
    Method for manufacturing a semiconductor silicon carbide on insulator substrate (SOI) and apparatus therefore 有权
    用于实施该制造方法的半导体硅绝缘体上衬底(SOI)的工艺和设备

    公开(公告)号:EP1333482A2

    公开(公告)日:2003-08-06

    申请号:EP03250583.6

    申请日:2003-01-30

    摘要: [Purpose] A single crystal silicon carbide thin film is inexpensively and easily formed on an SOI substrate.
    [Constitution] The manufacturing method comprises the steps of:

    (1) placing in a furnace 200 an SOI substrate 100 having a surface silicon layer 130 of thickness no greater than 10nm and having a buried insulator layer 120, and increasing the temperature of the atmosphere within furnace 200 while supplying a mixture of hydrogen gas G1 and hydrocarbon gas G2 into furnace 200 so that surface silicon layer 130 is metamorphosed into single crystal silicon carbide thin film 140;
    (2) depositing a carbon thin film 150 on thin film 140 by excessively carrying out the first step;
    (3) replacing mixed gas (G1+G2) with an inert gas G4 containing oxygen gas G3 mixed in a predetermined ratio and heating SOI substrate 100 to no less than 550°C to remove carbon thin film 150 through etching;
    (4) replacing inert gas G4 containing oxygen gas G3 with a pure inert gas G4 and increasing the temperature of the atmosphere within furnace 200 to a predetermined temperature; and
    (5) supplying hydrogen gas G1 and a silane-based gas G5 into furnace 200 and maintaining the predetermined temperature of the atmosphere so that a new single crystal silicon carbide thin film 160 grows on the surface of said SOI substrate 100.

    摘要翻译: [目的]的单晶碳化硅薄膜是在SOI衬底的廉价且容易地形成。 [构成]的制造方法,包括以下步骤:(1)放置在炉200上的SOI衬底100,其具有厚度不大于10nm的表面硅层130和具有掩埋绝缘体层120,并增加环境的温度 炉200内,同时氢气G1和烃气G2的混合物供给到炉200所以没表面硅层130被变态为单晶碳化硅薄膜140; (2)通过过度进行第一步上的薄膜140上沉积碳薄膜150; (3)用惰性气体置换的混合气体(G1 + G2),以氧气气体G3 G4包含混合在一个比预定的加热和SOI衬底100至不小于550℃,通过蚀刻以去除碳薄膜150; (4)替换惰性气体G4含氧气体G3与纯惰性气体G4和炉200内增加气氛的温度到预定的温度; 和(5)供给氢气G1和硅烷类气体G5入炉200和维护的气氛的预定温度,以便做一个新的单晶碳化硅薄膜160生长的SOI衬底的表面上的所述第100个