Patent ID: 7286039

Claim:
A chip resistor comprising an insulating substrate in a form of a chip, a pair of terminal electrodes formed on an upper surface of the insulating substrate at opposite ends of the upper surface, and a resistor film formed by screen printing on the upper surface of the insulating substrate and elongated between the terminal electrodes to have a predetermined width to include a first and a second longitudinal edges and a first and a second end edges, the resistor film including a first inward groove extending from the first longitudinal edge toward the second longitudinal edge, and a second inward groove extending from the second longitudinal edge toward the first longitudinal edge, the first and the second inward grooves being formed simultaneously in forming the resistor film by screen printing, wherein the first end edge of the resistor film is electrically connected to one of the terminal electrodes throughout the width of the resistor film, whereas the second end edge of the resistor film is electrically connected to the other one of the terminal electrodes via a narrow portion provided at the second longitudinal edge, the first and the second inward grooves being provided approximately at the longitudinal center of the resistor film and arranged adjacent to each other so that the first inward groove is positioned closer to the second end edge than the second inward groove is, whereas the second inward groove is positioned closer to the first end edge than the first inward groove is, and wherein, the resistor film further includes a first trimming groove formed between the first end edge of the resistor film and the second inward groove by trimming and extending from the first longitudinal edge toward the second longitudinal edge, and a second trimming groove formed between the second end edge of the resistor film and the first inward groove by trimming and extending from the second longitudinal edge toward the first longitudinal edge.