Patent ID: 6559520
Filing Date: 2003-05-06
Classification: B05D,C09D,C23C,H01L,Y10T

Abstract:
A siloxan polymer insulation film formed on a semiconductor substrate, obtainable by a method comprising the steps of:vaporizing a silicon-containing hydrocarbon compound to produce a material gas for siloxan polymer, said silicon-containing hydrocarbon having the formula Si&agr;O&agr;âˆ’1R2&agr;âˆ’&bgr;+2(OCnH2n+1)&bgr; wherein &agr; is an integer of 1-3, &bgr; is 2, n in an integer of 1-3, and R is C1-6 hydrocarbon attached to Si; introducing the material gas into a reaction chamber for plasma CVD processing wherein a semiconductor substrate is placed; introducing an additive gas comprising an inert gas and an oxidizing gas, said oxidizing gas being used in an amount less than the material gas; and forming a siloxan polymer film having â€”SiR2Oâ€” repeating structural units on the semiconductor substrate by activating plasma polymerization reaction in the reaction chamber, which siloxan polymer has a dielectric constant of 3.1 or lower and which has â€”SiR2Oâ€” repeating structural units and has a C atom concentration of 20% or less formed by plasma polymerization reaction from a silicon-containing hydrocarbon having the formula Si&agr;O&agr;âˆ’1R2&agr;âˆ’&bgr;+2(OCnH2n+1)&bgr; wherein &agr; is an integer of 1-3, &bgr; is 2, n is an integer of 1-3, and R is C1-6 hydrocarbon attached to Si.