Method and apparatus for stacked die package with insulated wire bonds

摘要

A semiconductor package has a substrate with a plurality of contact pads. A first semiconductor die is mounted to the substrate. First wire bonds are formed between each of the center-row contact pads of the first semiconductor die and the substrate contact pads. The first wire bonds include an electrically insulative coating formed over the shaft that covers a portion of a surface of a bumped end of the first wire bonds. An epoxy material is deposited over the first semiconductor die. A second semiconductor die is mounted to the epoxy material. Second wire bonds are formed between each of the center-row contact pads of the second semiconductor die and the substrate contact pads. The second wire bonds include an electrically insulative coating formed over the shaft of the second wire bonds that covers a portion of a surface of a bumped end of the second wire bonds.