Invention Application
US20140138827A1 ENHANCED FLIP CHIP PACKAGE 有权
增强片剂包装

ENHANCED FLIP CHIP PACKAGE
Abstract:
According to various embodiments, a flip chip package structure is provided in which a redistribution layer (RDL) is disposed on a surface of both a semiconductor chip and one or more lateral extensions of the semiconductor chip surface. The lateral extensions may be made using, e.g., a reconstituted wafer to implement a fanout region lateral to one or more sides of the semiconductor chip. One or more electrical connectors such as solder bumps or copper cylinders may be applied to the RDL, and an interposer such as a PCB interposer may be connected to the electrical connectors. In this way, a relatively tight semiconductor pad pitch may be accommodated and translated to an appropriate circuit board pitch without necessarily requiring a silicon or glass interposer.
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