Patent ID: 7220684
Filing Date: 2007-05-22
Classification: H01L

Abstract:
1. A method of manufacturing a semiconductor device comprising: a step of generating a precursor solution containing a silica derivative and a surfactant; a suface regulating step of carrying out a hydrophobic treatment or a hydrophilic treatment on a surface of a substrate; a contact step of causing the precursor solution to come in contact with the surface of thc treated substrate; and a step of burning the substrate with which the precursor solution is caused to come in contact and decomposing and removing the surfactant, wherein an insulating film having a plurality of porous structures, each porous structure defined by substantially all cylindrical vacancies is formed such that the cylindrical vacancies in each porous structure are oriented such that they are substantially parallel with the surface of the substrate, substantially all the cylindrical vacancies in each porous structure are arranged at periodic intervals, and the cylindrical vacancies of adjacent porous structures are oriented in different directions, and the surface regulating step is performed by using a surface regulating solution, the surface regulating solution being different from the precursor solution used in the contact step.