Patent ID: 7064053
Filing Date: 2006-06-20
Classification: H01L

Abstract:
1. A process for fabricating an electrical circuit, wherein successive layer treatments are carried out on top of a substrate in order to produce at least a first component in a first portion of the circuit and second components in a second portion of the circuit adjacent to the first portion, wherein at least a first of the layer treatments comprises the following steps: forming, in a first electrically insulating material present on top of the substrate, compensation cavities in the first portion of the circuit and trenches corresponding to at least some of the second components in the second portion of the circuit; covering the first insulating material with a first conducting material so as to substantially fill the compensation cavities and the trenches formed in the first insulating material; polishing the first conducting material until exposing part of the first insulating material in the second portion; and removing the first conducting material in the first portion; and wherein at least a second of the layer treatments comprises the following steps: forming, in a second electrically insulating material present on top of the substrate, at least one trench corresponding to the first component in the first portion of the circuit; covering the second insulating material with a second conducting material so as to substantially fill the trench formed in the first portion; and partially removing the second conducting material until exposing part of the second insulating material in the first portion.