Invention Application
US20130026628A1 Flip Chip Interconnection having Narrow Interconnection Sites on the Substrate 有权
倒装芯片互连在基板上具有窄的互连位置

Flip Chip Interconnection having Narrow Interconnection Sites on the Substrate
Abstract:
A flip chip interconnect of a die on a substrate is made by mating the interconnect bump onto a narrow interconnect pad on a lead or trace, rather than onto a capture pad. The width of the narrow interconnect pad is less than a base diameter of bumps on the die to be attached. Also, a flip chip package includes a die having solder bumps attached to interconnect pads in an active surface, and a substrate having narrow interconnect pads on electrically conductive traces in a die attach surface, in which the bumps are mated onto the narrow pads on the traces.
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