Patent ID: 6253447
Filing Date: 2001-07-03
Classification: B41J,Y10T

Abstract:
A method for manufacturing a thermal head, comprising the steps of:forming a heat generating resistor over an insulative substrate;forming a plurality of conductors having different material properties on the heat generating resistor for supplying power to the heat generating resistor, the conductors being formed by disposing a first conductor comprised of a preselected conducting material on the heat generating resistor and disposing a second conductor comprised of an alloy of the preselected conducting material over the first conductor;etching the first and second conductors by a single etching process so that an etching rate for the second conductor is greater than that for the first conductor to thereby form a wiring electrode having a tapered peripheral edge portion owing to the different material properties of the first and second conductors; andforming a protective film over the heat generating resistor and the wiring electrode.