Patent ID: 7642188
Filing Date: 2010-01-05
Classification: H01L

Abstract:
1. A method of fabricating a mixed signal integrated circuit device, the method comprising the steps of: forming a first circuit section in a substrate; forming a second circuit section in the substrate, the second circuit section being spaced laterally from the first circuit section; forming an isolation buried layer in the substrate under at least a portion of the first circuit section; forming a conductive layer on a surface of the integrated circuit, the conductive layer comprising a plurality of substantially coplanar conductive traces, the conductive traces intersecting with and connecting to one another to form a net, the conductive layer overlaying at least a portion of the first circuit section; and forming a plurality of conductive plugs in the substrate for operatively electrically connecting the isolation buried layer to the conductive layer at a plurality of points spaced throughout the buried layer such that an effective lateral resistance of the isolation buried layer is reduced; thereby forming said mixed signal integrated circuit device.