Patent ID: 6458669
Filing Date: 2002-10-01
Classification: H01L

Abstract:
A method of fabricating an integrated circuit including a field plated resistor, comprising the steps of:forming a resistor in an active area of a substrate, the resistor having a resistor body with first and second contact regions proximate ends thereof: forming a first layer of insulative material over the resistor; creating a window through the first layer of insulative material proximate the first contact region; forming a layer of polysilicon over the first layer of insulative material to define a field plate, the polysilicon making contact with the first contact region of the resistor, the field plate extending over the resistor body to proximate the second contact region; forming a second layer of insulative material over the polysilicon layer; creating windows through the second layer of insulative material to provide access to the polysilicon field plate and the second contact region; applying a metal layer; and etching away unwanted metal to provide conductors over the polysilicon field plate, the conductors formed in the same layer of metal as forms contacts to the resistor.