Patent ID: 8528209
Filing Date: 2013-09-10
Classification: B41J,Y10T

Abstract:
1. A method for manufacturing a discharge port member used in a liquid discharge head from which a liquid is discharged, said discharge port member including a discharge port that discharges said liquid and a recessed portion that is a part of a wall of a flow path of said liquid, said flow path being in communication with said discharge port, said method comprising in the following order: a step of preparing a substrate at least whose surface is conductive, said substrate having, formed on said surface, a first insulating resist for forming said discharge port and a second insulating resist for forming said recessed portion of said wall of said flow path; a first plating step of forming on said surface a first plating layer, which forms a part of said discharge port member, by plating using said first resist and said second resist as a mask, wherein said first resist is exposed through a first opening of said first plating layer, and said second resist is exposed through a second opening of said first plating layer; a step of removing said second resist; a second plating step of forming a second plating layer on an exposed portion of said substrate from which said second resist has been removed, said second plating layer being formed by plating using said first resist as a mask, said second plating layer forming said recessed portion of said wall; and a step of removing said first resist to form said discharge port and removing said substrate, whereby said discharge port member is formed.