Patent ID: 7439146

Claim:
A method for the manufacture of an integrated circuit having a field-plated resistor the field-plated resistor comprising: a. forming a resistor body in a semiconductor substrate, the resistor body having first and second contact regions, b. forming a first insulating layer on the resistor body, the first insulating layer approximately coextensive with the resistor body and having a top surface and a bottom surface, c. forming a contact window in the first insulating layer and extending from the top surface of the first insulating layer through the first insulating layer to the resistor body, d. forming a field plate on the first insulating layer and approximately coextensive therewith and with the resistor body, the field plate having a top surface and a bottom surface, with a portion of the bottom surface extending through the contact window in the first insulating layer and into contact with the first contact region of the resistor, e. depositing a second insulating layer, with a first portion of the second insulating layer at least substantially covering the field plate, f. depositing a metal layer, with a portion of the metal layer covering the first portion of the second insulating layer, g. patterning said portion of the metal layer to form i. an electrical contact to the top surface of the field plate, and ii. a plurality of metal conductors formed on the first portion of the second insulating layer.