Patent ID: 7297376
Filing Date: 2007-11-20
Classification: C23C

Abstract:
1. A method of depositing an organosilicate dielectric layer, comprising: positioning a substrate within a processing chamber the processing chamber having a powered electrode; flowing an initiation gas mixture into the processing chamber, the initiation gas mixture comprising a flow rate of one or more organosilicon compounds and a flow rate of one or more oxidizing gases; depositing a initiation layer on the substrate by applying a radio frequency power to the powered electrode; ramping-up the flow rate of the one or more organosilicon compounds until reaching a final flow rate of the one or more organosilicon compounds while depositing a first transition layer on the initiation layer; flowing the final flow rate of the one or more organosilicon compounds while flowing a flow rate of a gas mixture comprising one or more porogen compounds; ramping-up the flow rate of the one or more porogen compounds until reaching a final flow rate of the one or more porogen compounds while depositing a second transition layer on the first transition layer; and terminating the radio frequency power.