| 摘要 |
For providing a producing method for a liquid discharge head having an excellent reliability in the insulation of test electrode pad, the invention provides a method for producing a liquid discharge head including a liquid discharge energy generating element for generating a liquid discharge energy, a liquid discharge port, a liquid flow path, an electric circuit for driving the liquid discharge energy generating element, a first electrode pad for exchanging electrical signals with the exterior and a second electrode pad for testing the electric circuit, the method including, preparing a substrate provided with a first wiring layer for forming the first electrode pad and a second wiring layer for forming the second electrode pad, forming an insulating film on the substrate so as to expose the first wiring layer and to cover the second wiring layer, forming a metal film by an electroless plating method on the surface of the first wiring layer, and stripping the insulating film.
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