Patent ID: 6891109
Filing Date: 2005-05-10
Classification: B32B,C04B,H01L,H05K,Y10T

Abstract:
1. A monolithic ceramic substrate comprising: at least three functional ceramic layers including a functional ceramic material; at plurality of support layers including a ceramic material that does not sinter at a sintering temperature for the functional ceramic material, respective ones of the plurality of support layers being disposed on both sides of each of the at least three functional ceramic layers to prevent shrinkage of the at least three functional ceramic layers; a first conductor pattern including at least one thin-film conductor selected from the group consisting of a metal foil, a metal wire, and a conductive thin-film, the first conductor pattern being in contact with at least one of the at least three functional ceramic layers; and a second conductor pattern including a thick-film conductor in contact with at least one of the at least three functional ceramic layers.