发明名称 Barrier layer configurations and methods for processing microelectronic topographies having barrier layers
摘要 A microelectronic topography includes a dielectric layer (DL) with a surface higher than an adjacent bulk metal feature (BMF) and further includes a barrier layer (BL) upon the BMF and extending higher than the DL. Another microelectronic topography includes a BL with a metal-oxide layer having a metal element concentration which is disproportionate relative to concentrations of the element within metal alloy layers on either side of the metal-oxide layer. A method includes forming a BL upon a BMF such that portions of a first DL adjacent to the BMF are exposed, selectively depositing a second DL upon the BL, cleaning the topography thereafter, and blanket depositing a third DL upon the cleaned topography. Another method includes polishing a microelectronic topography such that a metallization layer is coplanar with a DL and further includes spraying a deionized water based fluid upon the polished topography to remove debris from the DL.
申请公布号 US7714441(B2) 申请公布日期 2010.05.11
申请号 US20050199621 申请日期 2005.08.09
申请人 LAM RESEARCH 发明人 IVANOV IGOR C.
分类号 H01L23/52;H01L23/48;H01L29/40 主分类号 H01L23/52
代理机构 代理人
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