ETCHANT COMPOSITION FOR METAL WIRING AND METHOD OF MANUFACTURING THIN FILM TRANSISTOR ARRAY PANEL USING THE SAME
    3.
    发明申请
    ETCHANT COMPOSITION FOR METAL WIRING AND METHOD OF MANUFACTURING THIN FILM TRANSISTOR ARRAY PANEL USING THE SAME 审中-公开
    用于金属接线的蚀刻组合物及其制造薄膜晶体管阵列板的方法

    公开(公告)号:US20110177680A1

    公开(公告)日:2011-07-21

    申请号:US12902018

    申请日:2010-10-11

    IPC分类号: H01L21/20 C09K13/00 C09K13/08

    摘要: The present invention relates to an etchant for wet etching a wiring that includes copper, where the etchant includes approximately 5 to approximately 25 wt % of a peroxide, approximately 0.5 to approximately 5 wt % of an oxidant, approximately 0.1 to approximately 1 wt % of a fluoride-based compound and approximately 1 to approximately 10 wt % of a glycol. The etchant can provide an etching rate that is suitable to many processes, and produces an appropriate etching amount as well as an appropriate taper angle.In addition, the etchant exhibits advantages including relatively low viscosity as compared to phosphoric acid-based etchants, relatively uniform etching characteristics, and relative stability as compared to peroxide-based etchants.

    摘要翻译: 本发明涉及用于湿蚀刻包括铜的布线的蚀刻剂,其中蚀刻剂包括约5至约25重量%的过氧化物,约0.5至约5重量%的氧化剂,约0.1至约1重量%的氧化剂, 氟化物基化合物和约1至约10重量%的二醇。 蚀刻剂可以提供适合于许多工艺的蚀刻速率,并且产生适当的蚀刻量以及适当的锥角。 此外,与基于磷酸的蚀刻剂相比,蚀刻剂具有相对低的粘度,相对均匀的蚀刻特性以及与基于过氧化物的蚀刻剂相比的相对稳定性的优点。