Patent ID: 6861290

Claim:
A method of forming a wire bond style/flip-chip attachment assembly electrically connecting a semiconductor die having a bond pad pattern to a first substrate having a connector pattern arrangement when the semiconductor die is attached to second adaptor substrate having an upper surface and having a second surface having a connector pattern thereon, comprising: providing an inverted bare semiconductor die having a surface having a plurality of bond pads extending along a longitudinal axis of the semiconductor die on the surface in a first bond pad pattern different than the connector pattern arrangement of the first substrate; providing a second adaptor substrate having a die side surface, a second attachment surface, at least one via extending through the second adaptor substrate from the die side surface to the second attachment surface, a plurality of circuits, and a plurality of bond pads located on the second attachment surface having a connector pattern connected to the plurality of circuits matching the connector pattern arrangement of the first substrate and a plurality of bond pads located in a first bond pad pattern connected to the plurality of circuits matching the first bond pad pattern of the inverted bare semiconductor die; applying an adhesive to a portion of the die side of the second adaptor substrate to attach the inverted bare semiconductor die thereto; attaching a portion of the surface having a plurality of bond pads thereon of the inverted bare semiconductor die to a portion of the die side surface of the second substrate locating the bare semiconductor die above the second adaptor substrate having the bond pads of the semiconductor die located over the via in the second adaptor substrate; connecting the plurality of bond pads of the inverted bare semiconductor die to the plurality of bond pads on the second attachment surface of the second adaptor substrate using a plurality of wire bonds, the plurality of wire bonds extending through the at least one via extending from bond pads of the inverted bare semiconductor die located on the die side surface of the second adaptor substrate through the second adaptor substrate to the second attachment surface of the second adaptor substrate, the plurality of wire bonds connected to the first bond pad pattern of the bare inverted semiconductor die and to the matching first bond pad pattern on the second attachment surface of the second adaptor substrate; filling at least a portion of the via in the substrate with a sealant; and connecting the second adaptor substrate to the first substrate having the second substrate located solely on one side of the first substrate, the connections between the first substrate and the adaptor second substrate formed by a plurality of adaptor board connectors extending between the matching connector pattern on the second attachment surface of the second adaptor substrate to the connector arrangement of the first substrate.