Patent ID: 8304665
Filing Date: 2012-11-06
Classification: H05K

Abstract:
1. A package substrate having landless conductive traces, at least comprising: a core layer having a first surface and a second surface, a plurality of conductive through holes being formed in the core layer and penetrating the first and second surfaces; and a plurality of conductive traces formed on the first surface of the core layer, wherein each of the conductive traces has a connection end, an opposed bond pad end formed on the first surface, and a base body formed on the first surface and connecting the connection end and the bond pad end, with the connection end being formed on an end surface of the conductive through hole corresponding to the first surface of the core layer such that the conductive trace can be electrically connected to the conductive through holes, and a width of the connection end is greater than that of the base body and smaller than a diameter of the conductive through hole.