发明名称 Multi-layer conductor pad for reducing solder voiding
摘要 A conductor pad, formable on a substrate or a printed circuit board, for conducing the reduction of gas voids in solder when an electronic device is soldered to the conductor pad, wherein the conductor pad includes a uniform and electrically conductive base layer having an interface surface, and also includes a patterned layer formed on the interface surface of the base layer, wherein one of the base layer and the patterned layer is substantially non-wettable and the other is substantially wettable, and wherein the base layer and the patterned layer cooperatively define strips of non-wettable surface areas which extend across the interface surface of the base layer. The strips of non-wettable surface areas can be defined upon the interface surface of the base layer in various ways to thereby create various non-wettable patterns upon the base layer. Preferably, the base layer is substantially wettable, and the patterned layer is both substantially non-wettable and electrically conductive.
申请公布号 US6362435(B1) 申请公布日期 2002.03.26
申请号 US19990467500 申请日期 1999.12.20
申请人 DELPHI TECHNOLOGIES, INC. 发明人 DOWNEY JOEL FRANKLIN;ISENBERG JOHN KARL
分类号 H01L21/60;H01L23/498;H05K1/09;H05K1/11;H05K3/24;(IPC1-7):H05K1/16 主分类号 H01L21/60
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