Chip resistor

摘要

[Problem] There is demand for chip resistors that are compact and that have high resistivity. [Solution] A chip resistor (100) has a substrate (11), a first connection electrode (12) and a second connection electrode (13) that are formed on the substrate (11), and a resistor network that is formed on the substrate (11) and that has ends one of which is connected to the first connection electrode (12) and the other one of which is connected to the second connection electrode (13). The resistor network is provided with a resistive circuit. The resistive circuit has a resistive element film line (103) that is provided along inner wall surfaces of trenches (101). The resistive element film line (103) extending along the inner wall surfaces of the trenches (101) is long and has a high resistivity as a unit resistive element. [Effect] The resistivity of the chip resistor (100) as a whole can be increased.

主权项

1. A chip resistor comprising:
a substrate having a circuit forming surface; a first connection electrode and a second connection electrode that are formed on the substrate; and a resistor network that is formed on the substrate and that has ends one of which is connected to the first connection electrode and an opposite one of which is connected to the second connection electrode; wherein a trench is dug down to a predetermined depth from the circuit forming surface of the substrate and is formed at the circuit forming surface, and wherein the resistor network includes a resistive circuit that has a resistive element film disposed along an inner wall surface of the trench in such a manner as to traverse the trench, and wherein the substrate is free of doped impurities that form a transistor.