| 摘要 |
The invention concerns a method for making a circuitry comprising conductive tracks, chips and micro-vias, at the top surface of a dielectric (303) consisting of a polymer matrix, a compound capable of inducing subsequent metallization and, if required one or several non-conductive and inert fillers, said dielectric (303) covering a level of circuitry (302) or metallized layer, which comprises steps which consist in: a) perforating right through said dielectric (303) without perforating the subjacent metallized layer or the subjacent level of circuitry (302), so as to form one or several micro-vias (304) at desired sites; b) forming, by metallization, metal tracks (312), chips (313) and micro-vias (311) at the surface of the dielectric (314) and of the micro-vias (304), while providing selective protection by depositing a protective layer. |
