Patent ID: 9748652
Date: 2017-08-29
CPC Classifications: G06K,H01Q,H05K,Y10T

Claim:
1. A manufacturing method for a magnetic material core-embedded resin multilayer board, comprising: a preliminary pressure-bonding step of preliminarily pressure-bonding a magnetic material core, which is a sintered body, to at least one resin sheet to form a magnetic material core-equipped resin sheet; and a full pressure-bonding step of stacking a plurality of resin sheets including a resin sheet including a conductor pattern formed thereon, a resin sheet including an aperture formed therein, and the magnetic material core-equipped resin sheet, in a state in which the magnetic material core is disposed in a cavity formed by the aperture, and fully pressure-bonding the plurality of resin sheets; wherein in the preliminary pressure-bonding step or the full pressure-bonding step, a crack is formed in the magnetic material core along a conductor pattern formed on a resin sheet that directly faces the magnetic material core or on a resin sheet that indirectly faces the magnetic material core via another resin sheet.