Method for manufacturing liquid discharge head, liquid discharge head, and liquid discharge recording apparatus

A method for manufacturing a liquid discharge head including an energy generating element configured to generate energy that facilitates discharging a liquid, a discharge opening adapted to discharge the liquid, and a channel supplying the liquid to the discharge opening, the method comprising the following steps:

• a step of forming a lamination on a substrate provided with the energy generating element, such that the lamination includes a plurality of laminated negative photosensitive resin layers with a light shielding film pattern for forming the channel, the light shielding film pattern being disposed therebetween,
• wherein the step of forming the lamination on the substrate includes the steps of:
• forming a first negative photosensitive resin layer on the substrate;
• laminating a light shielding film forming material on the first negative photosensitive resin layer;
• forming the light shielding film pattern by patterning the light shielding film forming material;
• and
• forming a second negative photosensitive resin layer on the first negative photosensitive resin layer and the light shielding film pattern;
• a step of exposing a portion which is set to be a member consisting the channel of the negative photosensitive resin layers in the lamination using a discharge opening mask;
• and
• a step of removing an unexposed portion of the negative photosensitive resin layers in the lamination.