Patent ID: 7390537

Claim:
A method of preparing a carbon doped silicon oxide (CDO) film on a substrate, the method comprising: (a) providing the substrate to a deposition chamber; and (b) contacting the substrate with one or more CDO precursors having a carbon-carbon triple bond in a dual frequency plasma enhanced deposition process and under process conditions whereby the CDO film is formed on the substrate, wherein the CDO film contains carbon-carbon triple bonds and their derivative bonds in sufficient amounts that the CDO film has a compressive stress or a tensile stress of magnitude less than about 30 MPa and a dielectric constant of not greater than about 3, wherein the CDO precursor comprises one or more compounds selected from the group consisting of Ethynyltrimethylsilane (ETMS), also known as trimethylsilaneacetylene (TMSA), Propargyltrimethylsilane (PTMS), Propargyloxytrimethylsilane (POTMS), Bis(trimethylsilyl)acetylene (BTMSA), 1,3-Diethynyltetramethyldisiloxane (DTDS), Dimethylmethoxysilaneacetylene (DMMOSA), Methyldimethoxysilaneacetylene (MDMOSA), Dimethylethoxysilaneacetylene (DMEOSA), Methyldiethoxysilaneacetylene (MDEOSA), Dimethylsilane-diacetylene (DMSDA), and Methylsilane-triacetylene (MSTA).