发明名称 Elliptic C4 with optimal orientation for enhanced reliability in electronic packages
摘要 A method providing elliptical C4 connects which possesses optimal orientation for enhanced reliability, as implemented in connection with their installation in electronic packages. Employed are essentially elliptical solder pads or elliptical C4 pad configurations at various preferably corner locations on a semiconductor chip.
申请公布号 US7841508(B2) 申请公布日期 2010.11.30
申请号 US20070682082 申请日期 2007.03.05
申请人 INTERNATIONAL BUSINESS MACHINES CORPORATION 发明人 SRI-JAYANTHA SRI M.;VALDEVIT LORENZO
分类号 B23K31/02 主分类号 B23K31/02
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