Abstract:
A circuit subassembly, comprising a dielectric layer formed from a dielectric composition comprising, based on the total volume of the composition: about 15 to about 65 volume percent of a dielectric filler; and about 35 to about 85 volume percent of a thermosetting composition comprising: a poly(arylene ether), and a carboxy-functionalized polybutadiene or polyisoprene polymer.
Abstract:
A circuit subassembly, comprising a dielectric layer formed from a dielectric composition comprising, based on the total volume of the composition: about 15 to about 65 volume percent of a dielectric filler; and about 35 to about 85 volume percent of a thermosetting composition comprising: a poly(arylene ether), and a carboxy-functionalized polybutadiene or polyisoprene polymer.
Abstract:
A circuit subassembly, comprising a conductive layer, a dielectric layer is formed from a thermosetting composition, wherein the thermosetting composition comprises, based on the total weight of the thermosetting composition, a low polarity resin, a oxaphosphorinoxide-containing aromatic compound, and an protective adhesive layer disposed between the conductive layer and the dielectric layer, wherein the circuit subassembly has a UL-94 rating of at least V-0. Also disclosed is a composition for a bond ply and a circuit subassembly that further comprises such bond ply.
Abstract:
A circuit subassembly, comprising a conductive layer, a dielectric layer is formed from a thermosetting composition, wherein the thermosetting composition comprises, based on the total weight of the thermosetting composition, a low polarity resin, a oxaphosphorinoxide-containing aromatic compound, and an protective adhesive layer disposed between the conductive layer and the dielectric layer, wherein the circuit subassembly has a UL-94 rating of at least V-0. Also disclosed is a composition for a bond ply and a circuit subassembly that further comprises such bond ply.