Patent ID: 6829823
Filing Date: 2004-12-14
Classification: H01L,H05K,Y10T

Abstract:
A method of making a multi-layered interconnect structure, comprising the steps of:providing a thermally conductive layer including first and second opposing surfaces; forming first and second dielectric layers on said first and second opposing surfaces, respectively, of said thermally conductive layer; forming first and second pluralities of electrically conductive members on said first and second dielectric layers, respectively; forming a first electrically conductive layer within said first dielectric layer; forming a second electrically conductive layer within said first dielectric layer and positioned between said first electrically conductive layer and said thermally conductive layer, wherein said second electrically conductive layer comprises a first plurality of shielded signal conductors; forming a plated through hole through the multi-layered interconnect structure electrically connected to at least one member of said first plurality of electrically conductive members, to at least one of said first plurality of shielded signal conductors, and to at least one member of said second plurality of electrically conductive members; and forming a third dielectric layer on said first dielectric layer and on portions of said first plurality of electrically conductive members, said third dielectric layer substantially overlying said plated through hole, and wherein said third dielectric layer includes a first high density interconnect layer for providing an electrical path from a first electronic device to the first plurality of shielded signal conductors.