Patent ID: 8438729
Filing Date: 2013-05-14
Classification: B41J,Y10T

Abstract:
1. A method for producing a liquid discharge head which includes a liquid discharge energy generating element for generating liquid discharge energy, a liquid discharge port for discharging a liquid, a liquid flow path communicating with the liquid discharge port, an electric circuit for driving the liquid discharge energy generating element, a first electrode pad for exchanging electrical signals with an exterior connection and a second electrode pad for testing the electric circuit, the liquid being discharged from the liquid discharge port by the liquid discharge energy, the method comprising: preparing a substrate provided with a conductive layer for forming the first electrode pad for exchanging electrical signals with the exterior connection and the second electrode pad for testing the electric circuit; forming a protective layer directly on at least the second electrode pad; after the protective layer is formed, forming a metal layer by an electroless plating method on the conductive layer, thereby completing the first electrode pad; removing the protective layer after the metal layer is formed; and providing a layer comprised of a resin on the second electrode pad after the protective layer is removed.