Patent ID: 8621888
Filing Date: 2014-01-07
Classification: B41J,Y10T

Abstract:
1. A manufacturing method for a thermal head, comprising: a concave portion forming step of forming on a surface of a substrate a plurality of concave portions including a reference concave portion so that a length of each of the plurality of concave portions other than the reference concave portion increases as a distance from the reference concave portion in a length direction increases and so that a width of each of the plurality of concave portions other than the reference concave portion increases as a distance from the reference concave portion in a width direction increases; a mark forming step of forming on the surface of the substrate a mark identifying the reference concave portion; a bonding step of thermally fusion bonding an insulating film to the surface of the substrate including the plurality of concave portions formed thereon in the concave portion forming step; and a heating resistor forming step of forming a plurality of heating resistors on the insulating film using a photo mask by aligning the photo mask with the substrate in accordance with the reference concave portion to form the heating resistors so as to be opposed to the plurality of concave portions.