Patent ID: 7410916
Filing Date: 2008-08-12
Classification: C23C,H01L

Abstract:
1. A method of depositing an organosilicate dielectric layer, comprising: positioning a substrate within a processing chamber having a powered electrode; flowing one or more oxidizing gases into the processing chamber; flowing an organosilicon compound from a first bulk storage container through a first digital liquid flow meter at a first organosilicon flow rate to a first vaporization injection valve; vaporizing the organosilicon compound and flowing the organosilicon compound and a first carrier gas into the processing chamber; maintaining the first organosilicon flow rate to deposit an initiation layer in the presence of an RF power; flowing a porogen compound from a second bulk storage container through a second digital liquid flow meter at a first porogen flow rate to a second vaporization injection valve; vaporizing the porogen compound and flowing the porogen compound and a second carrier gas into the processing chamber; increasing the first organosilicon flow rate and the first porogen flow rate while depositing a transition layer in the presence of the RF power; and maintaining a second organosilicon flow rate and a second porogen flow rate to deposit a porogen containing organosilicate dielectric layer in the presence of the RF power.