Patent ID: 7782173

Claim:
A chip resistor comprising: a ceramic substrate shaped like a rectangular parallelepiped; a resistive element that is placed on the lower surface of the ceramic substrate, positioned within a region inside the peripheral border of the lower surface, and made mainly of copper; a pair of first electrode layers that are positioned in regions covering both longitudinal ends of the resistive element; a pair of second electrode layers that are positioned in regions covering the first electrode layers; an insulating protective layer that is positioned to cover the resistive element exposed between the second electrode layers; a pair of end-face electrodes that are positioned on both longitudinal end faces of the ceramic substrate with the lower end closely attached to the second electrode layers; and a plating layer that covers the second electrode layers and the end-face electrodes; wherein the plating layer is soldered to a wiring pattern on a circuit board with the first and second electrode layers positioned on the wiring pattern to mount the chip resistor on the circuit board.