Patent ID: 6144287
Filing Date: 2000-11-07
Classification: H01C,Y10T

Abstract:
A chip resistor comprising:an insulating substrate;a pair of main electrodes formed on a surface of the insulating substrate and spaced from each other;a resistor film formed on the surface of the insulating substrate to bridge between the main electrodes, the resistor film being provided with a trimming groove for resistance adjustment;a protective coating formed to cover the resistor film; anda metal plating formed in electrical conduction with each of the main electrodes;wherein the trimming groove has a width which is no less than 80 .mu.m but smaller than an interval between the main electrodes;wherein the trimming groove is inverted-trapezoidal in cross section: andwherein the trimming groove has a pair of inclined side surfaces, each of the inclined side surfaces has an inclination angle of 20-45 degrees.