PROCESS FOR MAKING HYBRID MICROCIRCUITS PROVIDING ACCURATE THICK FILM RESISTOR PRINTING

摘要

A PROCESS FOR MAKING HYBRID MICBOCIRCUITSPROVIDING ACCURATE THICK FILM RESISTOR PRINTINGABSTRACTAn improved process for fabricating thick filmhybrid microcircuits that produces thick film resistorshaving electrical characteristics consistent with themicrocircuit design tolerances, in areas proximate adielectric build-up. The process includes, establishingby printing and firing a plurality of first conductortraces including the cross-under conductors to a sub-strate. Next, the resistive elements are printed andfired on the substrate and a dielectric glaze printedand fired over the resistive elements. At least onedielectric layer is then printed and fired over thecross-under conductors. A plurality of second conductortraces are next printed and fired on the substrate,including the cross-over conductors which are printedover the dielectric layer. Finally, a dielectric glazeis printed and fired over the cross-over conductors.12