Patent ID: 6046072
Filing Date: 2000-04-04
Classification: H01L,Y10T

Abstract:
A fabrication process of a semiconductor package, comprising the steps of:(1) bonding a semiconductor chip to a first side of two surfaces of a lead frame with an adhesive member,(2) conductively connecting a second side of said two surfaces of said lead frame and said semiconductor chip via a wire; and(3) molding a molding compound so that the molding compound covers at least said semiconductor chip and a bonded part between the semiconductor chip and said frame, whereinsaid wire and said lead frame are connected at a position inside a shadow which is formed by projecting said semiconductor chip vertically on said second side of said lead frame; andsaid adhesive member is a composite adhesive sheet comprising a heat-resistant film and a coating layer of an adhesive applied on both major surfaces of the heat resistant film; andsaid adhesive member is make of polyimide or polyamide and includes a heat-resistant adhesive having a coming-out length of not more than 2 mm and a water absorption rate of not more than 3 wt %,(4) measuring the coming-out length of said adhesive, wherein the coming-out length is measured by the steps of:pressing a film of said adhesive having a size of 19 mm.times.50 mm with a thickness of 25 .mu.m at 350.degree. C. under 3 MPA for one minute; andmeasuring a coming-out length of said adhesive at a central part in the direction of the longer of the longer surface of said adhesive.