Patent ID: 6310288
Filing Date: 2001-10-30
Classification: H01L,Y10T

Abstract:
A semiconductor die assembly, said semiconductor die assembly comprising:a semiconductor die having an active surface having a plurality of bond pads thereon and having a plurality of sides, each side of said plurality of sides forming an outer edge of said semiconductor die;at least two adhesive segments, each adhesive segment having an outer edge and an inner edge, said each adhesive segment secured to a portion of the active surface of said semiconductor die having said outer edge of said at least one adhesive segment located relatively closer to one said outer edge of said semiconductor die and having said inner edge relatively further from said outer edge of said semiconductor die and located on the portion of said active surface of said semiconductor die;a lead frame including a plurality of lead members connected to said lead frame, said plurality of lead members extending inwardly from said lead frame and over said active surface of said semiconductor die, at least one lead member of said plurality of lead members having an inner lead end portion at its inner end, having a length and having a thickness, extending over said adhesive segment being secured thereto, and having a free portion extending beyond said outer edge of said adhesive segment and over a portion of said active surface of said semiconductor die, said extending free portion causing a gap to be formed between said extending free portion of said at least one lead member and said active surface of said semiconductor die, said gap extending outwardly from said inner edge of said adhesive segment to said outer edge of said semiconductor die;a plurality of wires, each of said wires having one end bonded to at least one of said plurality of lead members on said lead frame and the other end bonded to at least one of said plurality of bond pads on said active surface of said semiconductor die;an underfill material filling the gap formed between said active surface of said semiconductor die and said at least one lead member of said plurality of lead members and extending outwardly from said outer edge of said each adhesive segment only to the outer edge of said semiconductor die, said underfill material preventing flow of encapsulant material into the gap; andan encapsulant material encapsulating portions of said semiconductor die and said plurality of lead members.