Patent ID: 7305754

Claim:
A method of manufacturing a chip resistor by dividing a chip resistance substrate which includes an insulating substrate, resistance film formed on a surface of the insulating substrate, and a plurality of conducting strips for partitioning the resistance film at required intervals, wherein: prior to a division step in which the chip resistance substrate is severed in longitudinal and lateral directions along first prescribed severing lines to divide the conductive strips into two parts and second prescribed severing lines perpendicular to the first prescribed severing lines so as to form discrete chip resistors, a resistance film width adjustment step is carried out in which grooves are formed by removing a predetermined width of the resistance film including at least the second prescribed severing lines so as to adjust the width of the resistance film by the two adjoining grooves; in the resistance film width adjustment step, a cutting device is used which includes at least a chuck table for holding a workpiece, a groove forming unit containing a cutting blade which has the predetermined width and cuts the workpiece held by the chuck table, and driving units for relatively shifting the chuck table and the groove forming unit; and the width of the resistance film is adjusted by removing at least the resistance film including the second prescribed severing lines by means of the cutting blade while relatively shifting the chuck table holding the chip resistance substrate and the groove-forming unit by means of the driving units.