MANUFACTURE OF RESISTOR PASTE

摘要

PURPOSE:To diminish the variation of a value of resistance by mixing a compound containing ruthenium in its structure and a solution containing a composition of terpenoid carboxylic acid and thereafter by heating the mixture to 140 deg.C or above to obtain a smooth resistor film surface. CONSTITUTION:Under-glaze 6 is formed on an insulating substrate 5, Ag-Pd electrode 7 is formed on both sides of the under-glaze and a resistor film 8 by means of paste is formed in the part of the top surfaces of the under-glaze 6 and Ag-Pd electrode 7. The exchange reaction of mutual organic groups takes place between the ruthenium compound in the paste and the composition of terpenoid carboxylic acid. When an intermolecular hydrogen bond being a property peculiar to carboxylic acid is cut off, the paste decreases in stickiness so as to be transferred onto a printed matter without generating bubbles even in the case of passing through a mesh at the time of printing. Thus, it is possible to obtain a smooth and even resistor film and to diminish the variation of the value of resistance.