发明名称 Structures and methods for improving solder bump connections in semiconductor devices
摘要 Structures with improved solder bump connections and methods of fabricating such structures are provided herein. The structure includes a via formed in a dielectric layer to expose a contact pad and a capture pad formed in the via and over the dielectric layer. The capture pad has openings over the dielectric layer to form segmented features. The solder bump is deposited on the capture pad and the openings over the dielectric layer.
申请公布号 US9087754(B2) 申请公布日期 2015.07.21
申请号 US201414522664 申请日期 2014.10.24
申请人 INTERNATIONAL BUSINESS MACHINES CORPORATION 发明人 Daubenspeck Timothy H.;Gambino Jeffrey P.;Muzzy Christopher D.;Sauter Wolfgang;Sullivan Timothy D.
分类号 H01L23/492;H01L23/00 主分类号 H01L23/492
代理机构 Roberts Mlotkowski Safran & Cole, P.C. 代理人 Cain David;Roberts Mlotkowski Safran & Cole, P.C.
主权项 1. A lead free solder bump structure, comprising: a via formed in a dielectric layer to expose a contact pad; a capture pad formed in the via and over the dielectric layer, the capture pad having openings over the dielectric layer to form segmented features; and a solder bump deposited on the capture pad and the openings over the dielectric layer.
地址 Armonk NY US