Apparatus for flip-chip packaging providing testing capability

Active solid-state devices (e.g. – transistors – solid-state diode – Lead frame – On insulating carrier other than a printed circuit board

Reexamination Certificate

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C257S778000, C361S749000

Reexamination Certificate

active

07915718

ABSTRACT:
A method and apparatus for increasing the integrated circuit density in a flip-chip semiconductor device assembly including an interposer substrate facilitating use with various semiconductor die conductive bump arrangements. The interposer substrate includes a plurality of recesses formed in at least one of a first surface and a second surface thereof, wherein the recesses are arranged in a plurality of recess patterns. The interposer substrate also provides enhanced accessibility for test probes for electrical testing of the resulting flip-chip semiconductor device assembly.

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