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公开(公告)号:US5683938A
公开(公告)日:1997-11-04
申请号:US327887
申请日:1994-10-24
申请人: Sang Young Kim , Yung Wook Song , Hun Do Kim
发明人: Sang Young Kim , Yung Wook Song , Hun Do Kim
IPC分类号: H01L21/768 , H01L23/522 , H01L21/28
CPC分类号: H01L21/76879
摘要: Method for filling contact holes with metals by two-step deposition of selective tungsten layer is disclosed. The selective tungsten thin films are deposited in two steps, thus maximizing the contact filling with tungsten, gaining a stability of metal wires with better step coverage, and enhancing the reliability on semiconductor element.
摘要翻译: 公开了通过选择性钨层的两步沉积来用金属填充接触孔的方法。 选择性钨薄膜以两个步骤沉积,从而最大化与钨的接触填充,获得更好的步骤覆盖的金属线的稳定性,并提高半导体元件的可靠性。