- 专利标题: Substrate via filling
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申请号: US15090656申请日: 2016-04-05
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公开(公告)号: US09872394B2公开(公告)日: 2018-01-16
- 发明人: Steven A. Cordes , Bing Dang , Sung K. Kang , Yu Luo , Peter J. Sorce
- 申请人: International Business Machines Corporation
- 申请人地址: US NY Armonk
- 专利权人: International Business Machines Corporation
- 当前专利权人: International Business Machines Corporation
- 当前专利权人地址: US NY Armonk
- 代理商 Steven F. McDaniel
- 主分类号: B05D5/12
- IPC分类号: B05D5/12 ; H05K3/00 ; C25D5/02 ; C25D7/00 ; H05K3/42 ; C23C18/16 ; H05K3/38
摘要:
A method for filling vias with metal includes receiving a substrate having vias, forming a metal plating layer over the vias on a first side of the substrate, fill-plating the vias with a first metal beginning with the metal plating layer on the first side of the substrate and advancing to a second side of the substrate to provide filled vias. The metal plating layer may be subsequently patterned to provide selected circuit connections or chemically-mechanically polished to completely remove the metal plating layer. Forming a metal plating layer over the vias may include filling the vias with a sacrificial filler to enable formation of the metal plating layer and subsequently removing the sacrificial filler via an etching operation or the like. In other embodiments, forming the metal plating layer over the vias is accomplished by bonding a metallic layer onto the first side of the substrate.
公开/授权文献
- US20160219715A1 SUBSTRATE VIA FILLING 公开/授权日:2016-07-28
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