A substrate for a semiconductor device and a manufacturing thereof, and a semiconductor device using the same and a manufacturing method thereof are disclosed. For example, in the substrate according to the present invention, a core is eliminated, so that the substrate has a very thin thickness, as well,...http://www.google.es/patents/US7902660?utm_source=gb-gplus-sharePatente US7902660 - Substrate for semiconductor device and manufacturing method thereof
Substrate for semiconductor device and manufacturing method thereof