发明申请
- 专利标题: Electroformed metal structure
- 专利标题(中): 电铸金属结构
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申请号: US11978909申请日: 2007-10-30
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公开(公告)号: US20080054469A1公开(公告)日: 2008-03-06
- 发明人: David Evans , John Hartzell
- 申请人: David Evans , John Hartzell
- 专利权人: Sharp Laboratories of America, Inc.
- 当前专利权人: Sharp Laboratories of America, Inc.
- 主分类号: H01L23/52
- IPC分类号: H01L23/52
摘要:
A method is provided for electroforming metal integrated circuit structures. The method comprises: forming an opening such as a via or line through an interlevel insulator, exposing a substrate surface; forming a base layer overlying the interlevel insulator and substrate surface; forming a strike layer overlying the base layer; forming a top layer overlying the strike layer; selectively etching to remove the top layer overlying the substrate surface, exposing a strike layer surface; and, electroforming a metal structure overlying the strike layer surface. The electroformed metal structure is deposited using an electroplating or electroless deposition process. Typically, the metal is Cu, Au, Ir, Ru, Rh, Pd, Os, Pt, or Ag. The base, strike, and top layers can be deposited using physical vapor deposition (PVD), evaporation, reactive sputtering, or metal organic chemical vapor deposition (MOCVD).
公开/授权文献
- US07714354B2 Electroformed metal structure 公开/授权日:2010-05-11
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