Method for making a carbide thin film thermistor

Details Method for making a carbide thin film thermistor Method for making a carbide thin film thermistor

1980-10-10

1982-11-16

Weisstuch, Aaron

Chemistry: electrical and wave energy

Processes and products

Vacuum arc discharge coating

29612, 29613, 29620, 29621, 338 22R, 338 22SD, C23C 1500

Patent

active

043593720

ABSTRACT:
A method for making a carbide thin film thermistor which comprises providing an insulating substrate, forming at least one pair of electroconductive electrodes on the substrate in a desired pattern, and forming a carbide resistor film on the insulating substrate and the electroconductive electrodes by sputtering process while leaving part of the electrodes exposed for external connections. A carbide target material is sputtered in an inert gas atmosphere containing a small amount of an impurity gas. The thermistor element is arbitrarily controlled to have a desired level of resistance by choice of the impurity gas, the amount of such gas and the mode of sputtering. Optionally, the element is trimmed to adjust its resistance accurately and is also hermetically sealed within a glass tube to prevent the element from being contaminated with harmful substances.

REFERENCES:
patent: 4001586 (1977-01-01), Fraioli
patent: 4200970 (1980-05-01), Schonberger

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