Metal working – Method of mechanical manufacture – Electrical device making
Reexamination Certificate
2010-02-18
2011-12-06
Phan, Thiem (Department: 3729)
Metal working
Method of mechanical manufacture
Electrical device making
C029S825000, C029S845000, C438S629000
Reexamination Certificate
active
08069560
ABSTRACT:
A manufacturing method of a multilayer wiring board that includes a core board, a wiring layer, and an electrically insulating layer that are stacked on the core board. The manufacturing method forms a plurality of through holes in a core member, a thermal expansion coefficient of the core board being between 2 to 20 ppm, and the core member selected from silicon, ceramics, glass, a glass-epoxy composite, and metal. The through holes are made conductive by a conductive material, to electrically connect between the front and the back of the core board. A wiring layer and an electrically insulating layer are stacked on one surface of the core board to form a multilayer wiring layer. A capacitor is formed on the other surface of the core board.
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Akazawa Miyuki
Kuramochi Satoru
Mori Toshiaki
Nakamura Kazunori
Nakayama Koichi
Dai Nippon Printing Co. Ltd.
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
Phan Thiem
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