17 Functional photo-definable materials, namely, semi-worked synthetic resins as semi-finished products in the form of paste and which contain dispersed conductive particles, all for use in the manufacturing of electronic parts; Functional photo-definable materials, namely, semi-worked synthetic resins as semi-finished products in the form of paste and which contain dispersed insulating particles, all for use in the manufacturing of electronic parts; Functional photo-definable materials for use in the manufacturing of electronic parts, namely, semi-finished synthetic resins in the form of paste in which conductive particles, namely, gold, silver or copper, are dispersed; Functional photo-definable materials for use in the manufacturing of electronic parts, namely, semi-finished synthetic resins in the form of paste in which insulation particles, namely, glasses or ceramics, are dispersed