Patent ID: 7429789

Claim:
A dielectric composition adapted for forming a dielectric layer for use in circuitized substrates, said dielectric composition comprising: first and second fluoropolymers, said first fluoropolymer having a high melting point from 300 degrees Celsius to 350 degrees Celsius and said second fluoropolymer having a low melting point from 200 degrees Celsius to 280 degrees Celsius; and first and second inorganic fillers, said first inorganic filler having a high thermal conductivity from 600 W/m.K degrees to 2000 W/m.K degrees and said inorganic second filler having a low thermal conductivity from 5 W/m.K degrees to 400 W/m.K degrees, said dielectric layer including said dielectric composition having a dielectric constant of from about 2.8 to about 3.6.