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    • 6. 发明公开
    • 규소 탄화물 박막의 이중 플라즈마 처리
    • 形成硅碳膜的方法
    • KR1020020020271A
    • 2002-03-14
    • KR1020010055098
    • 2001-09-07
    • 어플라이드 머티어리얼스, 인코포레이티드
    • 슈,치슈,핑시아,리-쿤벤카타라만,샨카르이에,엘리
    • H01L21/205
    • H01L21/76829C23C16/0272C23C16/325H01L21/3105H01L21/314H01L21/76801H01L21/76813H01L21/76826
    • PURPOSE: A method for forming silicon carbide films is provided to form a reliable silicon carbide diffusion barrier for integrated circuit fabrication. CONSTITUTION: The multilayer silicon carbide stack comprises a thin silicon carbide seed layer(e.g., silicon carbide seed layer less than about 100 angstrom thick) having a thicker silicon carbide layer(e.g., silicon carbide layer at least 300 angstrom thick) formed thereon. The multilayer silicon carbide stack is formed by depositing the thin silicon carbide seed layer on a substrate. After the silicon carbide seed layer is deposited on the substrate it is treated with a helium containing plasma. Thereafter, the thicker silicon carbide layer is deposited on the plasma treated silicon carbide seed layer. The multilayer silicon carbide stack is compatible with integrated circuit fabrication processes. In one integrated circuit fabrication process, the multilayer silicon carbide stack is used as a barrier layer. In another integrated circuit fabrication process, the multilayer silicon carbide stack is used as a hardmask for fabricating an interconnect structure.
    • 目的:提供一种用于形成碳化硅膜的方法,以形成用于集成电路制造的可靠的碳化硅扩散阻挡层。 构成:多层碳化硅堆叠包括在其上形成有较厚碳化硅层(例如,至少300埃厚的碳化硅层)的薄碳化硅种子层(例如,小于约100埃厚的碳化硅种子层)。 多层碳化硅堆叠通过将薄碳化硅种子层沉积在基底上而形成。 在碳化硅种子层沉积在基底上之后,用含氦的等离子体处理。 此后,较厚的碳化硅层沉积在等离子体处理的碳化硅种子层上。 多层碳化硅堆叠与集成电路制造工艺兼容。 在一个集成电路制造工艺中,多层碳化硅堆叠用作阻挡层。 在另一个集成电路制造工艺中,多层碳化硅堆叠被用作制造互连结构的硬掩模。