Patent ID: 6210522
Filing Date: 2001-04-03
Classification: B32B,B41J,C09J,H05K,Y10S,Y10T

Abstract:
A method for attaching a flexible circuit to a substrate, comprising the steps of:providing a silicon chip electrically bonded to a flexible circuit, wherein the flexible circuit has an epoxy coating on one side thereof;providing a substrate with a passivated surface;providing the adhesive bonding laminate comprising a first thermoplastic adhesive film that is capable of bonding to an epoxy coating; and a second thermoset adhesive film that is capable of bonding to a passivated surface of a substrate; wherein the first adhesive film is adhesively bonded to the second adhesive film, wherein the adhesive bonding laminate comprises the first thermoplastic adhesive film on a first side and the second thermoset adhesive film on a second side;adhesively bonding the second side of the adhesive bonding laminate to the passivated surface of the substrate;adhesively bonding the silicon chip to the substrate surface;adhesively bonding the first side of the adhesive bonding laminate to the epoxy coated side of the flexible circuit.