LAYOUT STRUCTURE OF ACTIVE RESISTOR

摘要

A layout structure of an active resistor is provided to minimize a substrate noise and a coupling noise by forming N-type pocket well in a P-type substrate. At least two P-well regions are formed in a P-type substrate(200). The P-well regions are separated from each other by N-type pocket wells. At least two N-type active regions(110,120) are formed on the P-well regions and the N-type active regions are connected to each other by branch(130).