METHOD FOR ADJUSTING RESISTANCE OF THIN FILM RESISTOR, METHOD FOR ADJUSTING RESISTANCE OF HEAT GENERATING SECTION OF THIN FILM THERMAL PRINT HEAD, AND THIN FILM THERMAL PRINT HEAD

摘要

PROBLEM TO BE SOLVED: To easily and accurately adjust the resistance of the heat generating section of a thin film thermal print head by irradiating the surface of a thin film resistor with laser light radiated from a solid-state laser. ;SOLUTION: Electrode layers 6a and 6b are successively formed on a thin film resistor 5 so that the resistor 5 an be exposed over a prescribed extend on the top of a partial glaze 4 and the exposed part can function as a heat generating section 7. The section 7 is irradiated with laser light having an appropriate amount of energy emitted from a semiconductor laser-excited solid- state laser. The resistance of the section 7 is changed by accumulating the number of irradiation shorts of the laser light. In addition, the resistance of the section 7 can be adjusted to a desired value by selecting the number of irradiation shots.;COPYRIGHT: (C)1998,JPO