Patent ID: 6303982
Filing Date: 2001-10-16
Classification: H01L,H05K

Abstract:
A semiconductor device comprising:a semiconductor chip having a main surface, said semiconductor chip having an integrated circuit, external terminals on said main surface and a polyimide film covering said main surface, said polyimide film having openings exposing said external terminals, said main surface having a pair of longer edges extending in a first direction and a pair of shorter edges extending in a second direction which is different from said first direction;first signal leads each having an inner lead and an outer lead which is continuous with said inner lead, each of the inner leads of said first signal leads crossing one of said pair of longer edges and extending over said main surface, each of said inner leads of said first signal leads having a first portion which is disposed over said main surface;second signal leads each having an inner lead and an outer lead which is continuous with said inner lead, each of said inner leads of said second signal leads crossing the other of said pair of longer edges and extending over said main surface, each of said inner leads of said second signal leads having a first portion which is disposed over said main surface;a first insulating adhesive layer being disposed between said polyimide film and said first portions of said first signal leads, said first insulating adhesive layer including a base insulating film and adhesive formed on both sides of said base insulating film, said first signal leads being fixed to said semiconductor chip via said first insulating adhesive layer;a second insulating adhesive layer being disposed between said polyimide film and said first portions of said second signal leads, said second insulating adhesive layer including a base insulating film and adhesive formed on both sides of said base insulating film, said second signal leads being fixed to said semiconductor chip via said second insulating adhesive layer;bonding wires electrically connecting said external terminals with said first portions of said first and second signal leads respectively; anda resin member having a pair of longer sides extending in said first direction and a pair of shorter sides extending in said second direction, said resin member sealing said semiconductor chip, said inner leads of said first signal leads protruding outwardly from one of a pair of longer sides adjacent to said one of the longer edges of said main surface of said semiconductor chip, said outer leads of said second signal leads protruding outwardly from the other of said pair of longer sides adjacent to the other of the longer edges of said main surface of said semiconductor chip,wherein said first and second insulating adhesive layers are discontinuous with each other in said second direction.