Patent ID: 7300683

Claim:
A method of forming a resistance film on a surface of a substrate having an insulating surface, the resistance film having a sheet resistivity less than that of the insulating surface comprising: (a) providing a fine particle dispersion solution obtained by mixing in a container an aqueous solution in which fine particles made of a resistance film material are dispersed and an adjusting solution reducing the dispersion stability of the fine particles; (b) preparing a treatment solution in which two liquid phases are vertically separated by pouring an organic solvent which is not compatible as a whole with the fine particle dispersion solution and forms a separate boundary into the container storing the fine particle dispersion solution; (c) immersing the substrate into the treatment solution to wet the fine particle dispersion solution to the surface of the substrate; (d) reciprocating the substrate between the fine particle dispersion solution phase and the organic solvent phase to decrease an absolute value of a xi (ξ) potential at the fine particles in the fine particle dispersion solution wetted to the surface of the substrate to a value smaller than an absolute value of xi (ξ) potential at the fine particles when the particles are being dispersed in the fine particle dispersion solution to deposit a fine particle aggregation film on the surface of the substrate; and (e) burning the fine particle aggregation film to form the resistance film.