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    • 9. 发明授权
    • Method of manufacturing semiconductor device, semiconductor manufacturing apparatus, and storage medium
    • 制造半导体器件,半导体制造装置和存储介质的方法
    • US08349725B2
    • 2013-01-08
    • US12920701
    • 2009-02-20
    • Hiroshi SatoHitoshi ItohKenji Matsumoto
    • Hiroshi SatoHitoshi ItohKenji Matsumoto
    • H01L21/4763
    • H01L21/67207H01L21/02063H01L21/02068H01L21/67253H01L21/67742H01L21/76814H01L21/76831H01L21/76834H01L21/76843H01L21/76858H01L21/76861H01L21/76865H01L21/76873H01L21/76877H01L23/53238H01L23/53295H01L2924/0002H01L2924/12044H01L2924/00
    • The present invention is a method of manufacturing a semiconductor device comprising: forming a recess in an interlayer insulating film formed on a substrate surface, the recess being configured to be embedded with an upper conductive channel mainly made of copper to be electrically connected to a lower conductive channel; supplying a gas containing an organic compound of manganese, and forming a barrier layer made of a compound of manganese for preventing diffusion of copper to the interlayer insulating film, such that the barrier layer covers an exposed surface of the interlayer insulating film; after the formation of the barrier layer, supplying organic acid to the barrier layer in order to increase a ratio of manganese in the compound of manganese forming the barrier layer; after the supply of the organic acid, forming a seed layer mainly made of copper on a surface of the barrier layer; after the formation of the seed-layer, heating the substrate in order to separate out manganese from on the surface of the barrier layer or from in the barrier layer onto a surface of the seed layer; supplying a cleaning liquid to the seed layer in order to remove the manganese separated out on the surface of the seed layer by the heating; and after the supply of the cleaning liquid, forming the upper conductive channel mainly made of copper in the recess.
    • 本发明是一种制造半导体器件的方法,包括:在形成在衬底表面上的层间绝缘膜中形成凹部,所述凹部被构造成嵌入有主要由铜制成的上部导电沟道,以与下部电连接 导电通道; 提供含锰有机化合物的气体,形成由锰化合物制成的阻挡层,以防止铜向层间绝缘膜扩散,使得阻挡层覆盖层间绝缘膜的暴露表面; 在形成阻挡层之后,向阻挡层供给有机酸,以增加形成阻挡层的锰化合物中的锰的比例; 在供给有机酸之后,在阻挡层的表面上形成主要由铜制成的种子层; 在形成种子层之后,加热衬底以将锰从阻挡层的表面或阻挡层中分离出到种子层的表面上; 向种子层供应清洗液,以便通过加热去除种子层表面上分离的锰; 并且在供应清洁液之后,在凹槽中形成主要由铜制成的上导电通道。