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2. 发明申请

US20050199489A1 Electroless deposition apparatus 审中-公开
标题翻译：无电沉积装置
公开(公告)号：US20050199489A1
公开(公告)日：2005-09-15
申请号：US11090919
申请日：2005-03-25
申请人： Joseph Stevens , Dmitry Lubomirsky , Ian Pancham , Donald Olgado , Howard Grunes , Yeuk-Fai Mok
发明人： Joseph Stevens , Dmitry Lubomirsky , Ian Pancham , Donald Olgado , Howard Grunes , Yeuk-Fai Mok
IPC分类号： C23C18/18 , C23C18/16 , C25D7/12 , H01L21/00 , H01L21/28 , H01L21/288 , C25C7/00
CPC分类号： H01L21/67126 , C23C18/1607 , C23C18/1619 , C23C18/1628 , C23C18/165 , C23C18/1653 , C23C18/1678 , C25D7/123 , C25D17/001
摘要： An apparatus and a method of depositing a catalytic layer comprising at least one metal selected from the group consisting of noble metals, semi-noble metals, alloys thereof, and combinations thereof in sub-micron features formed on a substrate. Examples of noble metals include palladium and platinum. Examples of semi-noble metals include cobalt, nickel, and tungsten. The catalytic layer may be deposited by electroless deposition, electroplating, or chemical vapor deposition. In one embodiment, the catalytic layer may be deposited in the feature to act as a barrier layer to a subsequently deposited conductive material. In another embodiment, the catalytic layer may be deposited over a barrier layer. In yet another embodiment, the catalytic layer may be deposited over a seed layer deposited over the barrier layer to act as a “patch” of any discontinuities in the seed layer. Once the catalytic layer has been deposited, a conductive material, such as copper, may be deposited over the catalytic layer. In one embodiment, the conductive material is deposited over the catalytic layer by electroless deposition. In another embodiment, the conductive material is deposited over the catalytic layer by electroless deposition followed by electroplating or followed by chemical vapor deposition. In still another embodiment, the conductive material is deposited over the catalytic layer by electroplating or by chemical vapor deposition.
摘要翻译：一种沉积包含至少一种选自贵金属，半贵金属，其合金及其组合的金属的催化剂层的装置和方法，其形成在基板上形成的亚微米特征。贵金属的实例包括钯和铂。半贵金属的实例包括钴，镍和钨。可通过无电沉积，电镀或化学气相沉积来沉积催化层。在一个实施方案中，催化层可以沉积在特征中以用作随后沉积的导电材料的阻挡层。在另一个实施方案中，催化剂层可以沉积在阻挡层上。在另一个实施方案中，催化层可以沉积在沉积在阻挡层上的种子层上，以充当种子层中任何不连续性的“贴片”。一旦沉积了催化层，可以在催化剂层上沉积诸如铜的导电材料。在一个实施例中，导电材料通过无电沉积沉积在催化剂层上。在另一个实施方案中，导电材料通过无电沉积然后电镀或随后进行化学气相沉积沉积在催化剂层上。在另一个实施例中，导电材料通过电镀或化学气相沉积沉积在催化层上。

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