发明名称 Variable cross-section plated mushroom with stud for bumping
摘要 An improved bump fabrication process is described that produces a larger diameter/taller solder ball than with a standard mushroom by forming an elongated mushroom having a short axis in the direction of adjacent connection mushrooms and an elongated axis orthogonal to the short axis. The increased larger volume solder when reflowed produces the larger diameter/taller bolder ball bump.
申请公布号 US6750134(B2) 申请公布日期 2004.06.15
申请号 US20030339377 申请日期 2003.01.09
申请人 TEXAS INSTRUMENTS INCORPORATED 发明人 AMADOR GONZALO;ARBUTHNOT DIANE LOUISE
分类号 H01L21/027;H01L21/60;H05K3/34;(IPC1-7):H01L21/44 主分类号 H01L21/027
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