Patent ID: 6046102
Filing Date: 2000-04-04
Classification: H01L

Abstract:
A method for making a passivation coated semiconductor structure, comprising:providing a substrate;forming a metallization line over the substrate, the metallization line defining at least one interconnect feature having a first thickness;depositing a first silicon nitride barrier layer having a second thickness over the substrate and the metallization line;applying an oxide material over the first silicon nitride barrier layer that overlies the substrate and the metallization line, the oxide application includes a deposition component and a sputtering component, the sputtering component being configured to remove at least a part of an edge of the first silicon nitride layer, the edge being defined by the metallization line underlying the first silicon nitride layer; anddepositing a second silicon nitride layer over the oxide material that is applied by the deposition component and the edge of the first silicon nitride layer sputtered by the sputtering component to establish a moisture repelling barrier between the second and first silicon nitride layers.