Method of preparing polyamide acid type intermediates for processing of
semiconductors
    1.
    发明授权
    Method of preparing polyamide acid type intermediates for processing of semiconductors 失效
    制备聚酰胺酸型半导体加工中间体的方法

    公开(公告)号:US4225702A

    公开(公告)日:1980-09-30

    申请号:US8408

    申请日:1979-02-01

    CPC分类号: C08G73/1032 H01B3/303

    摘要: A method of preparing a polyamide acid type intermediate is provided, by using a purified inert solvent and monomer compounds, or diamine and/or diaminoamide compounds and a tetracarboxylic acid dianhydride, whose ionic impurities and free acid contents were reduced by recrystallization purification. The polyamide acid type intermediate may improve electrical properties and heat resistance of semiconductors when it is applied to, for instance, a surface-protecting film of semiconductors or an interlayer-insulating film of semiconductors having a multiple layer wiring structure.

    摘要翻译: 通过使用纯化的惰性溶剂和单体化合物或二胺和/或二氨基酰胺化合物和四羧酸二酐,其离子杂质和游离酸含量通过重结晶纯化而还原,提供聚酰胺酸型中间体的制备方法。 当聚酰胺酸型中间体用于例如半导体的表面保护膜或具有多层布线结构的半导体的层间绝缘膜时,可提高半导体的电性能和耐热性。

    Method for fabricating semiconductor device and etchant for polymer resin
    8.
    发明授权
    Method for fabricating semiconductor device and etchant for polymer resin 失效
    半导体器件和聚合物树脂蚀刻剂的制造方法

    公开(公告)号:US4218283A

    公开(公告)日:1980-08-19

    申请号:US924008

    申请日:1978-07-12

    摘要: A semiconductor device fabricated by forming a layer of cured polyimide resin on a semiconductor body, forming a photoresist layer having a prescribed pattern on said cured layer, immersing in an etchant consisting of hydrazine and ethylenediamine to said cured layer through said prescribed pattern, whereby said cured layer is precisely etched according to said prescribed pattern and prescribed surfaces of said semiconductor body are exposed, forming a metal layer on the surface of said polyimide and the prescribed surfaces of said body, and selectively etching said metal layer so as to form a prescribed pattern.

    摘要翻译: 一种半导体器件,其通过在半导体本体上形成固化的聚酰亚胺树脂层,在所述固化层上形成具有规定图案的光致抗蚀剂层,通过所述规定图案将浸渍在由肼和乙二胺组成的蚀刻剂的所述固化层上, 根据所述规定的图案精确地蚀刻固化层,暴露所述半导体主体的规定表面,在所述聚酰亚胺的表面和所述体的规定表面上形成金属层,并选择性地蚀刻所述金属层,以形成规定的 模式。