Voltage compensation of temperature coefficient of resistance in

Details Voltage compensation of temperature coefficient of resistance in Voltage compensation of temperature coefficient of resistance in

1977-08-18

1980-10-21

James, Andrew J.

Electrical resistors

Incased, embedded, or housed

Element in insulation with outer metallic sheath

357 51, 357 91, 338 7, 307310, H01L 2356, H01L 2966, H01L 2702

Patent

active

042297532

ABSTRACT:
A circuit technique is disclosed for compensating for changes in the resistance of an integrated circuit resistor in an epitaxial bed, which is exposed to temperature changes. The resistance of an integrated circuit resistor is a function of the temperature at which is operates. The invention is based on the recognition that the resistance of the resistor is also a function of the potential difference between the body of the resistor and the epitaxial bed itself. Temperature compensation is achieved by connecting a temperature sensing circuit to the epitaxial bed, which has a voltage output which varies inversely with respect to the temperature coefficient of resistance of the resistor. Thus, the net change in the resistance of the resistor as it undergoes a temperature change, approximates zero.

REFERENCES:
patent: 3017520 (1962-01-01), Maupin
patent: 3936789 (1976-02-01), Matzen et al.
patent: 4005471 (1977-01-01), Magdo et al.
patent: 4044371 (1977-08-01), Abdelrahman
patent: 4053915 (1977-10-01), Cave
patent: 4126496 (1978-11-01), Verderber
patent: 4132998 (1979-01-01), Dingwall
IBM Technical Disclosure Bulletin, vol. 16, No. 2, Jul. 1973, Temperature Detector for Integrated Circuit Chip, pp. 424-425.
IBM Technical Disclosure Bulletin, vol. 19, No. 5, Oct. 1976, Controlling the Temperature Coefficient of Resistance of Ion Implanted Resistors, pp. 1675-1676.

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