THICK FILM RESISTOR, METHOD OF TRIMMING THICK FILM RESISTOR, AND PRINTED CIRCUIT BOARD HAVING THICK FILM RESISTOR

摘要

A THICK FILM RESISTOR COMPRISES A SUBSTRATE MADE OF A MATERIAL WHICH IS UNEASILY DAMAGED BY A LASER BEAM WHICH IMPINGES THEREON, A RESISTOR BODY FORMED ON THE SUBSTRATE IN THE FORM OF A THICK FILM, AND A PAIR OF ELECTRODES FORMED ON THE SUBSTRATE. THE ELECTRODES ARE ELECTRICALLY CONNECTED TO BOTH ENDS OF THE RESISTOR BODY, AND THE RESISTOR BODY HAS A SHAPE SUCH THAT THE SUBSTRATE IS EXPOSED AT LEAST IN A PORTION ADJACENT TO ONE SIDE EDGE OF THE RESISTOR BODY. (FIG. 4)