Metal working – Method of mechanical manufacture – Electrical device making
Reexamination Certificate
2007-10-23
2007-10-23
Arbes, Carl J. (Department: 3729)
Metal working
Method of mechanical manufacture
Electrical device making
C029S832000, C029S846000, C029S847000
Reexamination Certificate
active
11119820
ABSTRACT:
A multilayer printed wiring board having a wiring lead-out port has a signal circuit conductor perfectly covered by an earth circuit in its inside and a wiring lead-out port. A signal circuit conductor having a branch pattern is preferable. A large number of products can be easily manufactured with good size reproducibility. The multilayer printed wiring board is manufactured by selectively etching the copper of a cladding sheet manufactured by bonding a copper foil to a nickel foil with 0.1-3% reduction and forming a signal circuit conductor covered by an earth circuit and the wiring lead-out port.
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Ohsawa Shinji
Okamoto Hiroaki
Saijo Kinji
Yoshida Kazuo
Arbes Carl J.
Browdy and Neimark PLLC
Toyo Kohan Co. Ltd.
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