Invention Grant
US08923009B2 Substrate with built-in electronic component 有权
基板内置电子元器件

Substrate with built-in electronic component
Abstract:
In a first conductive layer and a third conductive layer that are respectively closest to a core layer having a storage portion that penetrates therethrough, four first penetrating holes and four first penetrating holes are formed so as to overlap part of an opening edge of the storage portion that is projected onto the first conductive layer and the third conductive layer, respectively.
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