Thin film resistor material and method

Coating processes – Electrical product produced – Integrated circuit – printed circuit – or circuit board

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204192R, 204192F, 427101, 427102, 427103, H01C 1712

Patent

active

045101787

ABSTRACT:
Improved thin film resistors and electrical devices and circuits with thin film resistors are fabricated utilizing a chromium, silicon, and nitrogen compound formed preferably by rf reactive sputtering of chromium and silicon in a nitrogen bearing atmosphere. An annealing step is used to produce time-stable resistance values and in combination with variations in the partial pressure of nitrogen during sputter deposition to control the temperature coefficient of resistivity to have positive, negative or zero values.

REFERENCES:
patent: 3381255 (1968-04-01), Youmans
patent: 3477935 (1969-11-01), Hall
patent: 3847658 (1974-11-01), Kumagai
patent: 4042479 (1977-08-01), Yamazaki
patent: 4079349 (1978-03-01), Dorfeld
patent: 4217570 (1980-08-01), Holmes
patent: 4288776 (1981-09-01), Holmes
patent: 4298505 (1981-11-01), Dorfeld

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