Apparatus for forming dielectric structures in integrated circuits
    34.
    发明申请
    Apparatus for forming dielectric structures in integrated circuits 审中-公开
    用于在集成电路中形成电介质结构的装置

    公开(公告)号:US20060084225A1

    公开(公告)日:2006-04-20

    申请号:US11291191

    申请日:2005-12-01

    IPC分类号: H01L21/8242

    摘要: In some embodiments, a multi-layer dielectric structure, such as a capacitor dielectric region, is formed by forming a first dielectric layer on a substrate according to a CVD process and forming a second dielectric layer directly on the first dielectric layer according to an ALD process. In further embodiments, a multi-layer dielectric structure is formed by forming a first dielectric layer on a substrate according to an ALD process and forming a second dielectric layer directly on the first dielectric layer according to a CVD process. The CVD-formed layers may comprise one selected from the group consisting of SiO2, Si3N3, Ta2O5, HfO2, ZrO2, TiO2, Y2O3, Pr2O3, La2O3, Nb2O5, SrTiO3 (STO), BaSrTiO3 (BST) and PbZrTiO3 (PZT). The ALD-formed layers may comprise one selected from the group consisting of SiO2, Si3N3, Al2O3, Ta2O5, HfO2, ZrO2, TiO2, Y2O3, Pr2O3, La2O3, Nb2O5, SrTiO3 (STO), BaSrTiO3 (BST) and PbZrTiO3 (PZT).

    摘要翻译: 在一些实施例中,通过根据CVD工艺在衬底上形成第一电介质层并根据ALD在第一电介质层上直接形成第二电介质层来形成诸如电容器电介质区域的多层电介质结构 处理。 在另外的实施例中,通过根据ALD工艺在衬底上形成第一电介质层并根据CVD工艺在第一电介质层上直接形成第二电介质层来形成多层电介质结构。 CVD形成的层可以包括从由SiO 2,Si 3 N 3 N 3,Ta 2 O 3, O 2,HfO 2,ZrO 2,TiO 2,Y 2,N 2, 3 O 3,3/3,3,3,3,3,3,3,3,3, (STO),BaSrTiO 3(BST)和PbZrTiO 3(BST)3(S0) / SUB>(PZT)。 ALD形成的层可以包括从由SiO 2,Si 3 N 3 N 3,Al 2 O 3, 3,O 3,O 2 O 5,HfO 2,ZrO 2,N 2, ,TiO 2,Y 2 O 3,Pr 2 O 3,La Nb 2 O 3,SrTiO 3(STO),N 2 O 3, BaSrTiO 3(BST)和PbZrTiO 3 3(PZT)。