Anti-corrosion overcoat cover tape

Abstract

A flexible carrier tape system suitable for transporting and/or storing an electrical component, which has an exposed metal surface sensitive to corrosion. The system comprises a container having a corrosion inhibitor therein, which is capable of reacting with the metal to form a film as an electromechanical barrier against corrosive attack; a component is placed in the container. In the preferred embodiment of the flexible carrier tape system, an elongated base strip has an upper surface and a plurality of longitudinally spaced cavities extending downwardly a predetermined depth from said upper surface for housing electrical components therein. A component in each of the cavities has at least one exposed metal surface sensitive to corrosion. An elongated cover strip for the upper base strip surface has a corrosion inhibitor deposited on that strip surface which faces the cavities. The cover strip is sealed onto the base strip so that it forms a substantially uniform plane with the upper surface, and a portion of said corrosion inhibitor is deposited onto the exposed metal surfaces. The inhibitor reacts with the metal surfaces to form a film of polymeric complex providing an electrochemical barrier against corrosive attack.