Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
June 7, 2011
Patent Application Number
10551439
Date Filed
April 6, 2004
Patent Primary Examiner
Patent abstract
In a core substrate 30, a ground through hole 36E and a power through hole 36P are disposed in the grid formation, so that electromotive force induced in X direction and Y direction cancel out each other. As a result, even if mutual inductance is reduced and a high frequency IC chip is loaded, electric characteristic and reliability can be improved without generating malfunction or error.
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