Precision resistor body and variable resistor comprising it

摘要

The invention provides a resistor excellent in micro-linearity and further, the durability to sliding as well as a high-precision variable resistor using the resistor and having a long life. A lower layer and an upper layer of the resistor are laminated, the surface of a resistor on which a slider is slid is formed of the upper layer and resistivity of the upper layer is smaller than that of the lower layer. <IMAGE>