AMORPHOUS CARBON DEPOSITION METHOD FOR IMPROVED STACK DEFECTIVITY
    11.
    发明申请
    AMORPHOUS CARBON DEPOSITION METHOD FOR IMPROVED STACK DEFECTIVITY 有权
    用于改善堆积缺陷的非晶碳沉积方法

    公开(公告)号:US20120208374A1

    公开(公告)日:2012-08-16

    申请号:US13455916

    申请日:2012-04-25

    IPC分类号: H01L21/312

    摘要: Embodiments described herein relate to materials and processes for patterning and etching features in a semiconductor substrate. In one embodiment, a method of forming a composite amorphous carbon layer is provided. The method comprises positioning a substrate in a process chamber, introducing a hydrocarbon source gas into the process chamber, introducing a diluent source gas into the process chamber, introducing a plasma-initiating gas into the process chamber, generating a plasma in the process chamber, forming an amorphous carbon initiation layer on the substrate, wherein the hydrocarbon source gas has a volumetric flow rate to diluent source gas flow rate ratio of 1:12 or less, and forming a bulk amorphous carbon layer on the amorphous carbon initiation layer, wherein a hydrocarbon source gas used to form the bulk amorphous carbon layer has a volumetric flow rate to a diluent source gas flow rate of 1:6 or greater.

    摘要翻译: 本文描述的实施例涉及用于图案化和蚀刻半导体衬底中的特征的材料和工艺。 在一个实施方案中,提供了形成复合无定形碳层的方法。 该方法包括将基板定位在处理室中,将烃源气体引入处理室中,将稀释源气体引入处理室,将等离子体起始气体引入处理室,在处理室中产生等离子体, 在所述基板上形成无定形碳起始层,其中所述烃源气体的体积流量与稀释剂源气体流量比为1:12以下,并且在所述无定形碳起始层上形成块状无定形碳层,其中, 用于形成大块无定形碳层的烃源气体的体积流量为稀释剂源气体流速为1:6或更大。