Method for manufacturing capacitor of semiconductor memory device by two-step thermal treatment
    2.
    发明授权
    Method for manufacturing capacitor of semiconductor memory device by two-step thermal treatment 失效
    通过两步热处理制造半导体存储器件电容器的方法

    公开(公告)号:US06472319B2

    公开(公告)日:2002-10-29

    申请号:US09851910

    申请日:2001-05-09

    IPC分类号: H01L2144

    CPC分类号: H01L28/55 H01L28/65

    摘要: A method for manufacturing a capacitor of a semiconductor memory device by a two-step thermal treatment is provided. A lower electrode is formed on a semiconductor substrate. A dielectric layer is formed over the lower electrode. An upper electrode formed of a noble metal is formed over the dielectric layer. The resultant having the upper electrode undergoes a first thermal treatment under a first atmosphere including oxygen at a first temperature which is selected to be within a range of 200-600° C., which is lower than the oxidation temperature of the upper electrode. The first thermally treated resultant undergoes a second thermal treatment under a second atmosphere without oxygen at a second temperature which is selected to be within a range of 300-900° C., which is higher than the first temperature.

    摘要翻译: 提供了通过两步热处理制造半导体存储器件的电容器的方法。 在半导体衬底上形成下电极。 在下电极上形成电介质层。 在电介质层上形成由贵金属形成的上电极。 具有上电极的所得物在包含氧的第一气氛下进行第一热处理,所述第一气氛在第一温度下被选择在低于上电极的氧化温度的200-600℃的范围内。 第一热处理产物在第二温度下在没有氧的第二气氛下进行第二热处理,第二温度选择在比第一温度高的300-900℃的范围内。

    Semiconductor device having barrier layer between ruthenium layer and metal layer and method for manufacturing the same
    3.
    发明授权
    Semiconductor device having barrier layer between ruthenium layer and metal layer and method for manufacturing the same 有权
    具有钌层和金属层之间的阻挡层的半导体装置及其制造方法

    公开(公告)号:US06893915B2

    公开(公告)日:2005-05-17

    申请号:US10127651

    申请日:2002-04-22

    摘要: A method for fabricating a semiconductor device is provided. A ruthenium layer is formed on a semiconductor substrate in a processing chamber. A barrier layer is formed on the ruthenium layer supplying a halide-free precursor in the processing chamber. A metal layer such as an aluminum layer, an aluminum alloy layer, a tungsten layer, or a copper layer is formed on the barrier layer. The barrier layer is one of a TiN layer, a TaN layer, a WN layer, and an MoN layer. The TiN layer is one of formed by using an MOCVD process and an ALD process, and the halide-free precursor is a titanium compound selected from the group consisting of pentakis(diethylamino) titanium, tetrakis(diethylamino) titanium, tetrakis(dimethylamino)titanium, and pentakis(dimethylamino)titanium. The TaN layer is formed by using one of an MOCVD process and an ALD process, and the halide-free precursor is a tantalum compound selected from the group consisting of t-butyltrikis(diethylamino)tantalum, pentakis(diethylamino)tantalum, tetrakis(dimethylamino)tantalum, and pentakis(dimethylamino)tantalum.

    摘要翻译: 提供一种制造半导体器件的方法。 在处理室中的半导体衬底上形成钌层。 在处理室中提供无卤素前体的钌层上形成阻挡层。 在阻挡层上形成铝层,铝合金层,钨层,铜层等金属层。 阻挡层是TiN层,TaN层,WN层和MoN层之一。 TiN层是通过使用MOCVD法和ALD法形成的,并且不含卤化物的前体是选自五(二乙基氨基)钛,四(二乙基氨基)钛,四(二甲基氨基)钛,四 ,和五(二甲基氨基)钛。 通过使用MOCVD法和ALD法之一形成TaN层,无卤素前体是选自叔丁基(二乙氨基)钽,五(二乙基氨基)钽,四(二甲基氨基) )钽和五(二甲基氨基)钽。