Patent ID: 8367548
Filing Date: 2013-02-05
Classification: H01L

Abstract:
1. A method for semiconductor processing, comprising: forming a silicon film comprising at least about 2 atomic % carbon on a substrate by flowing trisilane into a reaction chamber containing the substrate at less than about 600° C., wherein the silicon film comprising at least about 2 atomic % carbon has a substantially uniform composition, wherein the silicon film is deposited at a rate of about 5 nm per minute or higher; depositing a metal film on and in contact with the silicon film; annealing the metal film and the silicon film to form a metal silicide; depositing a dielectric layer above the metal silicide; and planarizing the dielectric layer by annealing the dielectric layer at about 800° C. or more, wherein a sheet resistance of the metal silicide is less than about 12 Ohm/sq after annealing the dielectric layer.