发明名称 Superfilled metal contact vias for semiconductor devices
摘要 In accordance with one aspect of the invention, a method is provided for fabricating a semiconductor element having a contact via. In such method, a hole can be formed in a dielectric layer to at least partially expose a region including at least one of semiconductor or conductive material. A seed layer can be deposited over a major surface of the dielectric layer and over a surface within the hole. In one embodiment, the seed layer can include a metal selected from the group consisting of iridium, osmium, palladium, platinum, rhodium, and ruthenium. A layer consisting essentially of cobalt can be electroplated over the seed layer within the hole to form a contact via in electrically conductive communication with the region.
申请公布号 US8698318(B2) 申请公布日期 2014.04.15
申请号 US201313760373 申请日期 2013.02.06
申请人 INTERNATIONAL BUSINESS MACHINES CORPORATION 发明人 KELLY JAMES J.;BASKER VEERARAGHAVAN S.;PRANATHARTHI HARAN BALASUBRAMANIAN;SEO SOON-CHEON;VO TUAN A.
分类号 H01L29/40 主分类号 H01L29/40
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