Patent ID: 8730286
Filing Date: 2014-05-20
Classification: B41J,Y10T

Abstract:
1. A method of manufacturing a thermal head, including: a support substrate processing step of forming a concave portion, which is open on one surface of a support substrate made of an alumina material; an intermediate layer forming step of forming an intermediate layer made of a glass paste by printing the glass paste made of a first glass material on the one surface of the support substrate and baking the glass paste; a bonding step of bonding an upper substrate to the one surface of the support substrate by arranging the upper substrate on the intermediate layer formed on the one surface of the support substrate in a laminated state and heating the upper substrate at a temperature of an annealing point thereof or higher and a softening point thereof or lower, the upper substrate being made of a second glass material having a softening point lower than a softening point of the first glass material; and a resistor forming step of forming a heat generating resistor on a surface of the upper substrate bonded to the support substrate at a position opposed to the concave portion.