SEMICONDUCTOR DEVICE HAVING ACTIVE REGISTER AND BIASING METHOD OF THE SAME

摘要

A semiconductor device including an active resistor and a method for biasing the same are provided to maintain constantly the resistance of the active resistor by preventing a forward bias effect generated between a substrate and the active resistor. A semiconductor device includes a deep N-well region(30), N-well regions(42,44), a P-well region(50), and a first resistor(60). The deep N-well region is formed on a substrate. The N-well regions, which are formed on the deep N-well region, are connected to a first source voltage. The P-well region is formed on the deep N-well region. The first resistor is formed on the P-well region. The P-well region is connected to a second source voltage and the substrate through a second resistor(70).