New electrolytic corrosion testing method for electrical insulating materials

Along with the recent miniaturization of parts for electronic equipment and rapid increase in packaging density, the diameter (line width) of the wire used for winding, wiring and the interval between wires have been steadily decreasing. Therefore, slight metal corrosion caused by insulating material may result in circuit disconnection, and prevention of electrolytic corrosion is becoming an extremely important problem from the viewpoint of improving the reliability of equipment.