Patent ID: 8426322
Filing Date: 2013-04-23
Classification: C23C,H01L

Abstract:
1. A method for producing a semiconductor device, comprising: mixing and thereafter vaporizing two or more kinds of organic siloxane compound materials each having a cyclic SiO structure as a main skeleton and having different structures, or alternatively, simultaneously mixing and vaporizing said two or more kinds of organic siloxane compound materials, so as to produce a vaporized gas; transporting said vaporized gas to a reaction furnace together with a carrier gas; and forming in said reaction furnace a porous insulating film by the plasma CVD method or the plasma polymerization method using said vaporized gas, wherein two kinds of said organic siloxane compound materials are mixed and vaporized to produce said vaporized gas, among said two kinds of said organic siloxane compound materials, a first source material has X unsaturated hydrocarbon groups, and a second source material has Y (in some cases, X=Y) unsaturated hydrocarbon groups, and a mixing ratio (molar ratio) of said first and second source materials is set to be such that a ratio of said second source material relative to said first source material being assumed to be 1 is within a range of plus and minus 25% with X/Y being a center.