A HIGH PRECISION SEMICONDUCTOR RESISTOR DEVICE

摘要

A semiconductor device in which a conductor is formed on at least a resistance element that is formed by diffusing impurities into a polycrystalline silicon or semiconductor substrate, said conductor having a resistance smaller than that of said resistance element and being maintained at a predetermined potential. Such a constitution of the invention makes it possible to prevent the entrance of impurity ions or noise from the neighboring signal lines or from external units, that cause a change in the resistance of the resistance element, since there is formed a conductor having a predetermined potential. Therefore, the resistance of the resistance element can be stably maintained.