PRINTED WIRING BOARD AND METHOD FOR MANUFACTURING PRINTED WIRING BOARD
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United States of America Patent
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app pub date -
Aug 22, 2017
filing date -
Aug 22, 2016
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Abstract
A printed wiring board includes a support plate, a laminate formed on the support plate and including first conductor pads on first surface side of the laminate and second conductor pads on second surface side of the laminate, and a solder resist layer interposed between the support plate and laminate and having openings formed such that the openings are exposing the first pads. The laminate includes a resin insulating layer and has a first surface on the first surface side and a second surface on the second surface side on the opposite side, and a via conductor structure penetrating from the first surface to the second surface of the laminate such that the via structure includes via conductors formed in the insulating layer and tapering from the first surface side toward second surface side of the laminate, and the second pads are protruding from the second surface of the laminate.
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