| 摘要 |
PROBLEM TO BE SOLVED: To provide a manufacturing method of a chip resistor which improves sulfur resistance and also improves resistance value precision.SOLUTION: An aggregate substrate 10 is divided into a number of chip regions S1 and sub regions S2 by primary dividing grooves 11 and secondary dividing grooves 12 extending in a lattice shape. A pair of front electrodes 3 which confront each other while interposing a predetermined interval therebetween, a resistor 6 spread over the pair of front electrodes 3, a first insulation layer 7 covering the resistor 6 and the like are formed in the chip region S1. The front electrode 3 connected with the resistor 6 is formed from an electrode material of high specific resistance containing Pd or the like with sulfur resistance, an extending portion 3a is formed by projecting the front electrode 3 to the sub region S2 neighboring to the chip region S1 over the primary dividing groove 11. An auxiliary electrode 14 of low specific resistance containing Ag as a main component is formed on the extending portion 3a, a probe is brought into contact with paired auxiliary electrodes 14, and a resistance value of the resistor 6 is measured. |
