Semiconductor element, method of manufacturing semiconductor...

Electricity: conductors and insulators – Conduits – cables or conductors – Preformed panel circuit arrangement

Reexamination Certificate

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C361S761000

Reexamination Certificate

active

07855342

ABSTRACT:
A transition layer38is provided on a die pad22of an IC chip20and integrated into a multilayer printed circuit board10.Due to this, it is possible to electrically connect the IC chip20to the multilayer printed circuit board10without using lead members and a sealing resin. Also, by providing the transition layer38made of copper on an aluminum pad24,it is possible to prevent a resin residue on the pad24and to improve connection characteristics between the die pad24and a via hole60and reliability.

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