Invention Grant
US09554467B2 Printed circuit board and semiconductor package 有权
印刷电路板和半导体封装

Printed circuit board and semiconductor package
Abstract:
Provided is a printed circuit board including a first conductive layer including a first conductive layer including a recessed portion, a protruding portion disposed at a higher level than that of the recessed portion, and a connecting portion connecting the recessed portion with the protruding portion. A second conductive layer is disposed above the recessed portion of the first conductive layer. A core layer is disposed between the first conductive layer and the second conductive layer. An upper solder resist layer is disposed on the second conductive layer. The upper solder resist layer exposes at least a portion of the protruding portion. A lower solder resist layer is disposed below the first conductive layer.
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