METHOD FOR PRODUCING WIRING BOARD
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United States of America Patent
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Issued Date -
Jun 30, 2016
app pub date -
Dec 9, 2015
filing date -
Dec 27, 2014
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Abstract
The method for producing a wiring board according to the present invention includes the steps of: preparing an insulating board including a cavity forming area and a wiring forming area; forming a first wiring conductor in the wiring forming area; forming a cavity in the cavity forming area and an opening in a part of the wiring forming area; inserting an electronic component including an external electrode into the cavity; forming insulating layers on upper and lower surfaces of the insulating board, the insulating layers filled into a gap in the cavity and into the opening; forming a through-hole penetrating through the opening from the insulating layer on an upper surface side to the insulating layer on a lower surface side; and forming a second wiring conductor on a surface of the insulating layer and in the through-hole.
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