Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
Method of manufacturing a multilayer wiring board
In a multilayer wiring board comprising a core board, and a wiring layer and an electrically insulating layer that are stacked on one surface of said core board, a thermal expansion coefficient of said core board in XY directions falls within a range of 2 to 20 ppm, a core member for said core board is a core member selected from silicon, ceramics, glass, a glass-epoxy composite, and metal, said core board is provided with a plurality of through holes that are made conductive between the front and the back by a conductive material, and a capacitor is provided on one surface of said core board, wherein said capacitor comprises an upper electrode being the conductive material in said through hole, and a lower electrode disposed so as to confront said upper electrode via a dielectric layer.
Dai Nippon Printing Co., Ltd.
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Koichi Kazunori Miyuki Satoru Toshiaki
Nakayama Nakamura Akazawa Kuramochi Mori