Resistor trimming method by the formation of slits in a resistor

Details Resistor trimming method by the formation of slits in a resistor Resistor trimming method by the formation of slits in a resistor

1996-04-09

1998-05-19

Tso, Edward

Electrical resistors

Mechanically variable

Resistance value varied by removing or adding material

338307, H01C 1000

Patent

active

057540926

ABSTRACT:
A resistor trimming method includes the steps of: forming a first slit from an edge of a resistor interconnecting first and second electrodes provided on an insulating substrate in the proximity of and parallel to the first electrode; forming a second slit as a continuation of the first slit toward to the second electrode perpendicularly to the first slit; forming a third slit from a point of the edge of the resistor and parallel to the first electrode, the point being shifted from the first slit toward the second electrode, the third slit having a greater length than the first slit in a direction along the first electrode; and forming a fourth slit as a continuation of the third slit toward to the second electrodes perpendicularly to the first slit.

REFERENCES:
patent: 4284970 (1981-08-01), Berrin et al.
patent: 5043694 (1991-08-01), Higashi et al.
patent: 5065221 (1991-11-01), Imamura
patent: 5198794 (1993-03-01), Sato et al.
patent: 5493148 (1996-02-01), Ohata et al.

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