Coating processes – Electrical product produced – Integrated circuit – printed circuit – or circuit board
Patent
1983-02-14
1985-04-09
Smith, John D.
Coating processes
Electrical product produced
Integrated circuit, printed circuit, or circuit board
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
Hughes David W.
Paulson Wayne M.
Handy Robert M.
Motorola Inc.
Smith John D.
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