Patent ID: 8256099
Filing Date: 2012-09-04
Classification: B41J,H01C,Y10T

Abstract:
1. A manufacturing method for a thermal head, comprising: a concave portion forming step of forming a hollow concave portion and a marking concave portion having a depth larger than a depth of the hollow concave portion on one surface of a substrate; a bonding step of bonding a supporting plate onto the one surface of the substrate, in which the hollow concave portion and the marking concave portion are formed in the concave portion forming step; a thinning step of thinning the substrate onto which the supporting plate is bonded in the bonding step until the marking concave portion extends through the substrate from a side of a back surface opposite to the one surface; and a heating resistor forming step of forming a heating resistor on the back surface of the substrate thinned in the thinning step so as to be opposed to the hollow concave portion.