Patent ID: 8039043
Filing Date: 2011-10-18
Classification: C03C,C23C,H01J

Abstract:
1. 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, the method comprising the steps of: wetting a fine particle dispersion solution to the surface of the substrate by immersing the substrate in a solution in which fine particles made of a material of the resistance film are dispersed; depositing a fine particle aggregation film on the surface of the substrate by decreasing an absolute value of a ζ potential at the fine particles in the fine particle dispersion solution wetted to the surface of the substrate so as to make it smaller than an absolute value of ζ potential at the fine particles when these particles are being dispersed in the solution; wherein a cycle of the wetting step and the depositing step is repeated plural times; and burning the fine particle aggregation film to form the resistance film; wherein an initial aggregation of fine particles has an uneven film thickness including a thin part and a thick part, and repeated steps of wetting and depositing causes new aggregation of the fine particles to be restrained at the thick part to form a smooth film.