Patent ID: 6710258
Filing Date: 2004-03-23
Classification: H01L,H05K

Abstract:
A circuitized substrate comprising:a plurality of electrically conductive layers, selected ones of said electrically conductive layers electrically insulated from adjacent ones of said electrically conductive layers by dielectric material; at least one electrically conductive via-hole extending between and electrically coupling two non-adjacent ones of said electrically conductive layers through lands associated with each non-adjacent electrically conductive layer, and configured and arranged to transmit a high frequency signal therebetween; at least one of said electrically conductive layers being an intermediate conductive layer positioned between said two non-adjacent ones of said electrically conductive layers and including at least one shielding track having structure connectable to a reference voltage, said shielding track substantially surrounding and insulated from said at least one electrically conductive via-hole.