Multilayer printed wiring board with filled viahole structure

Details Multilayer printed wiring board with filled viahole structure Multilayer printed wiring board with filled viahole structure

2008-06-30

2010-06-15

Norris, Jeremy C (Department: 2841)

Electricity: conductors and insulators

Conduits, cables or conductors

Preformed panel circuit arrangement

C361S792000

Reexamination Certificate

active

07737366

ABSTRACT:
A multilayer printed wiring board having a multilayered structure including multiple conductor circuit layers and multiple interlaminar insulative layers, the conductor layers having one or more conductor circuit portions, the interlaminar insulative resin layers including the outermost interlaminar insulative resin layer forming the outermost layer of the multilayered structure, a filled-viahole formed in the outermost interlaminar insulative resin layer and made of one or more metal plating filling and completely closing a hole formed through the outermost interlaminar insulative resin layer, the metal plating of the filled-viahole extending out of the hole and having a substantially flat surface, the filled-viahole electrically connected to the conductor circuit portion in the conductor circuit layers, and a solder bump formed on the substantially flat surface of the filled-viahole.

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