| 摘要 |
<p>PURPOSE:To obtain a finely divided electrode pattern and reduce a variation in resistance value to realize a finely divided printing dot, by a method wherein an electrode conductor film of 0.15-1.0mum thick is formed by using an organic gold paste and the resistance values of the resistors between respective electrode conductors are adjusted to within a predetermined range by the application of voltage pulse trimming. CONSTITUTION:On a glazing layer 2, a gold film of 0.4-0.6mum thick is formed by repeating a few time the process of printing and burning by using an organic gold paste. By applying a phto-etching, the gold film is patterned into fine electrode conductors 3 of the desired pattern, and thereon a resistor 4 and a wear resistant layer 5 are formed in order. A voltage pulse is applied during the measurement of the values of resistance between the respective electrode conductors, while a voltage pulse trimming is so applied that each value of resistance is adjusted to within the predetermined range. In this manner, an etching facter of approximate 0 and finely divided electrode patterns can be realized and the resistance values between respective electrode conductors are adjusted to within + or -10% by the application of voltage pulse trimming on a unit basis, which eliminates variation in printing density.</p> |
