Voltage-nonlinear resistor, method for making the same, and varistor using the same

Abstract

A varistor includes a voltage-nonlinear resistor and varistor electrodes provided on the upper and lower surfaces of the voltage-nonlinear resistor. The voltage-nonlinear resistor is primarily composed of SiC (silicon carbide) particles which are doped with at least one dopant such as N (nitrogen) and P (phosphorus). The varistor electrodes are composed of a metal, e.g., Ag, Pd, Pt, Al, Ni or Cu. The SiC particles of the voltage-nonlinear resistor further contain at least one element of Al (aluminum) and B (boron) in an amount of about 0.01 to 100 parts by weight with respect to 100 parts by weight of the SiC particles.

Dependencies are inferred from the claim text.