SELECTIVE HIGH DIELECTRIC CONSTANT MATERIAL ETCHANT
    2.
    发明公开
    SELECTIVE HIGH DIELECTRIC CONSTANT MATERIAL ETCHANT 审中-公开
    选择性的蚀刻剂高介电常数材料

    公开(公告)号:EP1828070A2

    公开(公告)日:2007-09-05

    申请号:EP05731200.1

    申请日:2005-03-18

    发明人: STARZYNSKI, John

    IPC分类号: C03C15/00 B44C1/22 C09K13/04

    CPC分类号: H01L21/31111 C09K13/08

    摘要: Etchants for selective removal of high dielectric constant materials are described herein that comprise at least one fluorin-based constituent; water and at least one solvent or solvent mixture. Methods are also described herein for producing a wet etching chemistry solution that include providing at least one fluorine-based constituent, providing water, providing at least one solvent mixture, and combining the fluorine-based constituent and water into the least one solvent or solvent mixture to form the wet etching chemistry solution.