Metal working – Method of mechanical manufacture – Electrical device making
Reexamination Certificate
2011-06-21
2011-06-21
Dinh, Tuan T (Department: 2835)
Metal working
Method of mechanical manufacture
Electrical device making
C029S831000, C029S830000, C029S842000, C029S846000, C361S794000, C361S786000, C174S368000, C174S109000
Reexamination Certificate
active
07963031
ABSTRACT:
In a package for a semiconductor device, a core substrate has two metal plates, each of which includes a first through hole, a second through hole, a projection, and an insulating layer formed on its surface. The metal plates are stacked in a manner that the projections of the mutual metal plates enter the second through hole of the metal plate on a partner side, and the first through holes of the metal plates form a through hole penetrating the core substrate. A tip end of each of the projections of the metal plates is exposed to a surface of the metal plate on the partner side to form a first terminal portion, and a second terminal portion is exposed from the insulating layer and formed on a surface of the metal plate on a side where the first terminal portion of the metal plate on the partner side is exposed.
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Koizumi Naoyuki
Oi Kiyoshi
Tateiwa Akihiko
Dinh Tuan T
Rankin , Hill & Clark LLP
Sawyer Steve
Shinko Electric Industries Co. Ltd.
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