Stock material or miscellaneous articles – All metal or with adjacent metals – Composite; i.e. – plural – adjacent – spatially distinct metal...
Reexamination Certificate
2006-05-02
2006-05-02
Jones, Deborah (Department: 1775)
Stock material or miscellaneous articles
All metal or with adjacent metals
Composite; i.e., plural, adjacent, spatially distinct metal...
C428S620000, C428S674000, C428S676000
Reexamination Certificate
active
07037597
ABSTRACT:
It is an object of the present invention to provide a surface-treated copper foil wherein a surface layer which is situated on a side being not bonded to a resin in a copper foil for a printed-wiring board and on which a copper direct drilling process by carbon dioxide laser is easily applied is prepared with a small amount of a covering material in accordance with a simple manner.In the copper foil used for a direct drilling process by laser of the present invention, 50 to 1000 mg/m2of a covering layer consisting of iron and tin, or a covering layer made of an alloy prepared from iron, tin, and at least one member selected from the group consisting of nickel, cobalt, zinc, chromium, and phosphorous is provided on at least one side of the copper foil.
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Fukuda Metal Foil & Powder Co., Ltd.
Hodgson & Russ LLP
Jones Deborah
Savage Jason L.
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