Patent ID: 7892648

Claim:
A dielectric material consisting of atoms of Si, C, O, and H, and optionally including one of F and N, and having a covalently bonded tri-dimensional random network structure including a reduced density of Si—O—Si reactive sites compared to other dielectric materials of a same dielectric constant also including atoms of Si, C, O and H and also having a covalently bonded tri-dimensional random network structure, said reduced density of Si—O—Si reactive sites is obtained by having Si—C bonding within said tri-dimensional network structure in which a fraction of the C atoms within said Si—C bonding is bonded as Si—CH 3 functional groups, and another fraction of the C atoms within said Si—C bonding is bonded as Si—R—Si, wherein R is —[CH 2 ] n — where n is 1 to 3, HC═CH, C═CH 2 , or C≡C, where n is as defined above, said dielectric material is prepared by providing at least a first precursor comprising a carbosilane or an alkoxycarbosilane molecule into a reactor chamber, and depositing said first precursor, wherein said depositing is selected from chemical vapor deposition, plasma enhanced chemical vapor deposition, high density plasma deposition and pulsed plasma enhanced chemical vapor deposition.