Method of making a semiconductor device having dual damascene line structure using a patterned etching stopper
    4.
    发明授权
    Method of making a semiconductor device having dual damascene line structure using a patterned etching stopper 失效
    使用图案化蚀刻阻挡件制造具有双镶嵌线结构的半导体器件的方法

    公开(公告)号:US06498092B2

    公开(公告)日:2002-12-24

    申请号:US09780830

    申请日:2001-02-09

    IPC分类号: H01L214763

    摘要: A semiconductor device having a dual damascene line structure and a method for fabricating the same are disclosed. The semiconductor device and the method solve the conventional problem of a partially, or fully, closed contact hole, and restrain increase in the parasitic capacitance in an interlayer insulation layer due to an increase in the dielectric constant thereof through the use of an etching stopper layer. To achieve this, a first interlayer insulation layer is formed on a semiconductor substrate on which a first conductive pattern is formed. Next, the etching stopper pattern having an etching selection ratio with respect to the first interlayer insulation layer is partially formed in a particular area. Thereafter, a second interlayer insulation layer and a second conductive layer made of copper are formed.

    摘要翻译: 公开了一种具有双镶嵌线结构的半导体器件及其制造方法。 半导体器件和方法解决了部分或完全闭合的接触孔的常规问题,并且通过使用蚀刻停止层,由于其介电常数的增加而抑制了层间绝缘层中的寄生电容的增加 。 为了实现这一点,在其上形成有第一导电图案的半导体衬底上形成第一层间绝缘层。 接下来,相对于第一层间绝缘层具有蚀刻选择比的蚀刻停止图案部分地形成在特定区域中。 此后,形成第二层间绝缘层和由铜制成的第二导电层。