Patent ID: 7986197
Filing Date: 2011-07-26
Classification: H01L

Abstract:
1. An attenuator structure in a bulk electrical semi-conductive material comprising: a substrate formed of a planar distributed resistive material of uniform resistivity disposed along ground; a reference electrical contact at a reference point on a first side of said substrate; a distributed ground contact region along a second side of said substrate opposite said first side, said ground contact region being subdivided into a plurality of adjacent electrically conductive segments separated by small gaps along an axis of equipotential voltage, said segments defining a plurality of attenuation values in a longitudinal pattern based on distance from said reference electrical contact and without patterning of the distributed resistive material of the substrate; and thus forming a distributed resistive structure having the mathematical property that it attenuates an applied reference current logarithmically/exponentially based on size and average distance of said conductive segments from said reference contact of said structure.