Patent ID: 6131269
Filing Date: 2000-10-17
Classification: H05K,Y10T

Abstract:
A method for forming at least one continuous isolation wall between adjacent radio-frequency (RF) or millimeter-wave circuit components embedded in a circuit module having a dielectric substrate having a thickness and with a metal layer disposed on an underside thereof, the method comprising the steps of:forming at least one channel in the dielectric substrate, the at least one channel is thin in relation to the thickness of the substrate and wherein the at least one channel extends all the way through the dielectric substrate without adversely affecting the structural integrity thereof, but not through the metal layer; andfilling the at least one channel with metal to provide at least one continuous isolation wall separating adjacent ones of said circuit components installed on the substrate, wherein the ones of said circuit components are positioned in close proximity without significant interference or signal loss between the components.