Patent ID: 7105913
Filing Date: 2006-09-12
Classification: H01C,H01L

Abstract:
1. A method for fabricating a patterned resistor on a substrate, comprising: patterning two conductive end terminations on and directly contacting the surface of the substrate; patterning a first layer of resistive material having a first sheet resistance to have a first width and to extend on and directly contacting the surface of the substrate between the two conductive end terminations; patterning a second layer of resistive material having a second sheet resistance to have a second width, to extend between the two conductive end terminations, and to at least partially overlay the first layer of resistive material; and patterning one of the first and second layers of resistive material to extend onto the two conductive end terminations, wherein one of the first and second sheet resistances is a low sheet resistance and the other of the first and second resistances is a high sheet resistance, and wherein a ratio of the high sheet resistance to the low sheet resistance is at least ten to one, and wherein the one of the patterns of first and second resistive materials that has the high sheet resistance is substantially wider than the other of the patterns of first and second resistive material.