Invention Grant
US09219052B2 Making a flip-chip assembly with bond fingers 有权
用键合手指进行倒装芯片组装

Making a flip-chip assembly with bond fingers
Abstract:
A method of making a flip chip assembly includes a substrate having a top surface and forming a plurality of generally longitudinally extending, laterally spaced apart bond fingers are formed on the top surface. Each of the plurality of bond fingers has a first longitudinal end portion and a second longitudinal end portion. Applying a transversely extending solder resist strip over the first longitudinal end portions of the bond fingers. The strip has an edge wall with a plurality of longitudinally projecting tooth portions separated by gaps. Each tooth portion and each gap aligned with a different one of the bond fingers in each adjacent pair of bond fingers.
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