Patent ID: 7227179

Claim:
A circuit material for the formation of circuits or multi-layer circuits, the circuit material comprising: a first conductive layer; and a dielectric layer disposed on the first conductive layer, wherein the dielectric layer comprises a crosslinkable liquid crystalline polymer comprising phenyl maleimide groups, nadimide groups, phenylacetylene groups, or a combination comprising at least one of the foregoing groups; and further comprises a particulate filler, a fibrous web, or a combination comprising at least one of the foregoing, wherein the dielectric layer has a dielectric constant of less than about 3.8, a dissipation factor of less than or equal to about 0.007 when measured from 1 to 10 GHz, and a UL-94 rating of V-1 or better, when the liquid crystalline polymer composition is fully crosslinked.