Patent ID: 6466113
Filing Date: 2002-10-15
Classification: H05K,Y10T

Abstract:
A printed circuit architecture comprising:a base of thermally and electrically conductive material; a laminate of conductive layers including a printed circuit structure, interleaved with dielectric layers, disposed against said base; and a first aperture through said laminate structure, said first aperture having a first portion containing conductive material that conductively connects said base layer with at least one of said conductive layers, and a second portion that is absent conductive material, so as to leave said base layer conductively connected with said at least one of said conductive layers, but conductively disconnected from one or more of said conductive layers intersected by said second portion of said first aperture; a second aperture that extends partially through said plurality of conductive layers and interleaved dielectric layers to a depth such that second aperture does not intersect said base layer, and contains conductive material that conductively interconnects plural ones of said conductive layers; and said laminate including a well containing a circuit component and positioned adjacent to said first aperture, said first aperture including a dielectric-filled counterbore to a prescribed depth into a first dielectric layer that prevents unwanted shorting and forming an insulating barrier between an RF signaling layer and conductive material remaining in the aperture.