Aqueous cleaning of paste residue
    5.
    发明授权
    Aqueous cleaning of paste residue 失效
    糊状残留物的水性清洗

    公开(公告)号:US06277799B1

    公开(公告)日:2001-08-21

    申请号:US09344886

    申请日:1999-06-25

    IPC分类号: C11D172

    摘要: This invention relates to an aqueous cleaning method for removal of metal-organic composite paste residue from the surface of components, such as, screening masks, associated paste screening equipment, substrates, to name a few. The invention is particularly concerned with aqueous alkaline cleaning solutions comprising alkali metal salt and/or quaternary ammonium salt of an organic acid preferably &agr;-hydroxy carboxylic acid in the presence of excess alkali and optionally a surface active agent for use in cleaning components, such as, screening masks, associated screening equipment, substrates, etc., which are used in the production of electronic components.

    摘要翻译: 本发明涉及从组分表面除去金属 - 有机复合糊状残留物的水性清洗方法,例如筛选掩模,相关的糊状物筛选设备,底物等等。 本发明特别涉及含有碱金属盐和/或季铵盐的含水碱性清洗溶液,所述碱性金属盐和/或有机酸优选为α-羟基羧酸的季铵盐,所述碱性金属盐和/或季铵盐在过量碱和任选的表面活性剂存在下用于清洁组分,例如 ,筛选掩模,相关筛选设备,基材等,用于生产电子元件。