Patent ID: 6211769
Filing Date: 2001-04-03
Classification: H01C,H01L

Abstract:
A system for minimizing the temperature coefficient of resistance of a semiconductor resistor which is part of an integrated circuit which includes:(a) a semiconductor body having a first dielectric surface region;(b) a semiconductor resistor body disposed on said first dielectric region, said resistor body having one of a positive or negative temperature coefficient of resistance;(c) a second dielectric layer disposed over said resistor body; and(d) a resistor head extending through said second dielectric layer to said resistor body, said resistor head consisting essentially of an electrical path and interface to and from the resistor body and in contact with the resistor body and in series with the resistor body, said resistor head having the other of a positive or negative temperature coefficient of resistance offsetting the change in resistance with temperature of said semiconductor resistor body.