Method of packaging an integrated circuit die

摘要

A structure (40) for holding an integrated circuit die (38) during packaging includes a support substrate (42), a release film (44) attached to the substrate (42), and a swelling agent (60). A method (34) of packaging the die (38) includes placing the die (38) on the substrate (42) with its active surface (52) and bond pads (54) in contact with the film (44). The agent (60) is applied over an adhesive coating (50) of the film (44). The agent (60) causes the adhesive (50) to swell into contact with the bond pads (54) and/or to form fillets (64) of adhesive (50) about the die (38). The die (38) is encapsulated in a molding material (72) and released from the substrate (42) as a panel (74) of dies (38). Swelling of the adhesive (50) about the bond pads (54) prevents the molding material (72) from bleeding onto the bond pads (54).