Method of high speed resistor trimming

Details Method of high speed resistor trimming Method of high speed resistor trimming

1974-09-23

1976-05-11

Mack, John H.

Chemistry: electrical and wave energy

Processes and products

C25D 1102

Patent

active

039560813

ABSTRACT:
This disclosure deals with a novel technique for trimming thin film resistors and the like by continually determining during relatively rapid anodizing whether the resistor has obtained a value greater than or less than a desired value without actually determining the resistance valve, and when the desired value is closely approached, more accurately making the determination while anodizing the resistor more slowly to the desired value.

REFERENCES:
patent: 3341444 (1967-09-01), Chapelle
patent: 3520783 (1970-07-01), Carroll
patent: 3635802 (1972-01-01), Manning et al.
patent: 3674659 (1972-07-01), Livermore et al.
patent: 3723257 (1973-03-01), Bhattacharyya

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