Patent ID: 6985349
Filing Date: 2006-01-10
Classification: H01L,H05K,Y10T

Abstract:
1. An electronic module comprising: a low temperature co-fired ceramic (LTCC) substrate; at least one capacitive structure embedded in said LTCC substrate comprising a pair of electrode layers, an inner dielectric layer between said pair of electrode layers, and at least one outer dielectric layer adjacent at least one of said electrode layers and opposite said inner dielectric layer, said at least one outer dielectric layer having a dielectric constant less than a dielectric constant of said inner dielectric layer; and at least one electronic device mounted on said LTCC substrate and electrically connected to said at least one embedded capacitive structure; said at least one outer dielectric layer comprising respective at least one outer dielectric layers adjacent each of said electrode layers and opposite said inner dielectric layer, and each at least one outer dielectric layer comprising a first outer dielectric layer and a second outer dielectric layer between said first outer dielectric layer and a respective electrode layer; said second outer dielectric layer having a greater dielectric constant than a dielectric constant of said first outer dielectric layer.