Patent ID: 7352060

Claim:
A multilayer wiring substrate for providing a capacitor structure inside a multilayer wiring structure, the multilayer wiring substrate comprising: a dielectric layer including a resin material mixed with an inorganic filler; wherein the inorganic filler is fabricated by mixing a paraelectric filler with an inorganic filler having a high dielectric constant; wherein the paraelectric filler has a temperature coefficient that is a negative value or a temperature coefficient that is no more than 100 ppm/° C. and the paraelectric filler is selected from the group consisting of 2MgO·SiO 2 —SrO—BaO—TiO 2 , La 2 O 3 ·2TiO 3 , Bi 2 O 3 ·2TiO 2 , CaTiO 3 —La 3 O 3 —TiO 2 , SrTiO 3 —CaTiO 3 , BaTiO 3 —SrTiO 3 —La 2 O 3 —TiO 2 , and admixtures thereof.