Gold diffusion thin film resistors and process

Details Gold diffusion thin film resistors and process Gold diffusion thin film resistors and process

1989-09-08

1991-06-11

Reynolds, Bruce A.

Electrical resistors

With base extending along resistance element

Resistance element coated on base

338314, 427102, 20419221, H01C 1012

Patent

active

050235893

ABSTRACT:
A low-resistance nickel-chromium-based thin film resistor and method for forming same. A nickel-chromium alloy film is coated on at least one side with a layer of gold, the resulting gold-coated alloy film is heated at a temperature and for a time effective to cause diffusion of sufficient gold into the nickel-chromium film to lower its resistance to a desired value, and the gold layer is then removed, to leave a nickel-chromium-gold composite film resistor.

REFERENCES:
patent: 4164607 (1979-08-01), Thiel et al.
patent: 4204935 (1980-05-01), Kleese et al.
patent: 4205299 (1980-05-01), Kleese et al.
patent: 4692230 (1987-09-01), Nihei et al.
patent: 4725480 (1988-02-01), Gurol
patent: 4803457 (1989-02-01), Chapel, Jr. et al.

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