Jianq Chyun IP Office
Circuit substrate and manufacturing method thereof and package structure and manufacturing method thereof
A circuit substrate includes the following elements. A conductive layer and a dielectric layer are disposed on an inner circuit structure in sequence, and a plurality of conductive blind vias are embedded in the dielectric layer and connected to a portion of the conductive layer. A plating seed layer is disposed between each of the first blind vias and the first conductive layer. Another conductive layer is disposed on the dielectric layer, wherein a portion of the another conductive layer is electrically connected to the conductive layer through the conductive blind vias. A third plating seed layer is disposed between the third conductive layer and each of the first blind vias and on the first dielectric layer.
Advanced Semiconductor Engineering Inc.
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Ho-Ming Chih-Cheng
Tong Lee