会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 5. 发明申请
    • W-CVD with fluorine-free tungsten nucleation
    • W-CVD无氟钨成核
    • US20020190379A1
    • 2002-12-19
    • US10104842
    • 2002-03-22
    • Applied Materials, Inc.
    • Ping JianSeshadri GanguliKarl A. LittauChristophe MarcadalLing Chen
    • H01L021/44
    • C23C16/0281C23C16/16H01L21/28556
    • In accordance with the present invention, a method is provided for forming an improved tungsten layer. In one embodiment, a CVD method for depositing a tungsten layer on a substrate includes forming a bilayer of titanium-nitride/titanium (TiN/Ti) over the substrate, placing the substrate in a deposition zone of a substrate processing chamber, and introducing a fluorine-free tungsten-containing precursor and a carrier gas into the deposition zone for forming a tungsten nucleation layer over the TiN/Ti bilayer. The Ti layer is between the TiN layer and the substrate. After the tungsten nucleation formation, a process gas including a tungsten-containing source and a reduction agent are introduced into the deposition zone for forming the bulk tungsten layer. In one embodiment, the fluorine-free tungsten-containing precursor includes W(CO)6, and the carrier gas is Argon.
    • 根据本发明,提供一种用于形成改进的钨层的方法。 在一个实施例中,用于在衬底上沉积钨层的CVD方法包括在衬底上形成氮化钛/钛(TiN / Ti)的双层,将衬底放置在衬底处理室的沉积区中,并引入 无氟含钨前体和载气进入沉积区,用于在TiN / Ti双层上形成钨成核层。 Ti层位于TiN层和衬底之间。 在钨成核形成之后,将包含含钨源和还原剂的工艺气体引入用于形成体钨层的沉积区中。 在一个实施方案中,无氟含钨前体包括W(CO)6,载气为氩。