Patent ID: 7998880
Filing Date: 2011-08-16
Classification: H01L

Abstract:
1. A method of forming a dielectric film stack comprising: providing a substrate into a reactor chamber, and forming in-situ a low k dielectric film stack having at least one nanolayer embedded therein onto a surface of said substrate, wherein said forming includes providing a first flow of at least a first dielectric precursor and first depositing a first low k dielectric layer portion of said low k dielectric film stack, stopping the first flow and replacing the first flow with a second flow of a nanolayer precursor, second depositing a nanolayer comprising atoms of Si and O onto said first low k dielectric layer portion, stopping the second flow and replacing the second flow with a third flow of at least said first dielectric precursor, and third depositing a second low k dielectric layer portion on said nanolayer comprising atoms of Si and O.