Patent ID: 8795556

Claim:
A hybrid photo-patternable dielectric composition comprising: at least one positive-tone component including a positive-tone polymer, positive-tone copolymer, or blends of positive-tone polymers and/or positive-tone copolymers having one or more acid sensitive positive-tone functional groups; at least one negative-tone component including a negative-tone polymer, negative-tone copolymer, or blends of negative-tone polymers and/or negative-tone copolymers having one or more acid sensitive negative-tone functional groups; at least one photoacid generator; and at least one solvent that is compatible with the positive-tone and negative-tone components, wherein said dielectric composition has a dual-tone property with a dissolution response to an irradiation that increases within a first exposure dose range, reaches a maximum within a second exposure dose range, and decreases within a third exposure dose range.