Modified benzocyclobutene-containing layer-adding adhesive film for FC-BGA packaging carrier plate as well as preparation method and application of modified benzocyclobutene-containing layer-adding adhesive film

The invention discloses a modified benzocyclobutene-containing layer-adding adhesive film for an FC-BGA packaging carrier plate as well as a preparation method and application of the modified benzocyclobutene-containing layer-adding adhesive film. The layer-adding adhesive film comprises the following components in parts by weight: 45-100 parts of epoxy resin, 40-100 parts of inorganic filler, 25-45 parts of cyanate ester, 40-60 parts of modified benzocyclobutene, 5-10 parts of acrylic resin, 5-10 parts of phenoxy resin, 0.1-1 part of a curing accelerator and 200-300 parts of an organic solvent, wherein the modified benzocyclobutene is one or two of phosphorus containing benzocyclobutene and nitrogen containing benzocyclobutene. On the basis of the epoxy resin, the phenoxy resin, the cyanate ester, the curing accelerator and other components, the modified benzocyclobutene is added for performance regulation and control, and by adding different types of the modified benzocyclobutene and combining other raw mat