The present invention provides a dense semiconductor fuse array having common cathodes. A bank computer processes activation information for a promotion card. An elongate second film strip is applied across the field and juxtaposed across the first film strip with a leading longitudinal edge of the second film strip overlapping the trailing longitudinal edge of the first strip. a co-solvent for said inorganic base;D. A polysilicon layer is formed within the deep trench area adjacent to the metal layer. The supercapacitor can provide energy to produce flashes over an extended time period without fully discharging.