Patent ID: 6436301
Filing Date: 2002-08-20
Classification: B41J

Abstract:
A method for manufacturing a liquid discharge head provided with a discharge port for discharging a liquid droplet; a first liquid flow path for supplying discharging liquid to said discharge port; a second liquid flow path for bubbling liquid supplied thereto; a heat generating element for the formation of a bubble creation region arranged for said second liquid flow path; a movable film supporting member for supporting a movable film separating said first liquid flow path and said bubble creation region completely, and being displaceable by a bubble created on said heat generating element; and discharging a liquid droplet from said discharge port by use of thermal energy provided by said heat generating element, comprising the following steps of:forming said movable film supporting member; forming on a surface of a substrate becoming said movable film supporting member a recessed portion corresponding to the movable region of said movable film; providing a material becoming said movable film on the entire surface of the substrate having said recessed portion provided thereon; removing the portion including said movable region on said substrate from the reverse side of the substrate having said movable film provided thereon; and forming a slacked configuration on the portion of said movable region of said movable film prior to displacement by said bubble.