Thermal print head and method for manufacturing the same

Details Thermal print head and method for manufacturing the same Thermal print head and method for manufacturing the same

2007-08-27

2010-11-30

Tran, Huan H (Department: 2861)

Incremental printing of symbolic information

Thermal marking apparatus or processes

Specific resistance recording element type

Reexamination Certificate

active

07843475

ABSTRACT:
A thermal printhead (A1) includes an insulating substrate (1), a glaze (2), a plurality of pairs of first and second electrodes (3A,3B) and heating resistors (5). Each of the heating resistors (5) includes a heating portion (5a) spaced apart from the first electrode (3A) and the second electrode (3B). The respective ends (31A,31B) of the electrodes (3A,3B) are embedded in the glaze (2). An insulating film (4) is provided between the heating portion (5a) of each heating resistor (5) and the glaze (2). The hardness of the insulating film (4) is higher than that of the glaze (2) and lower than that of the heating resistor (5). The thermal conductivity of the insulating film (4) is higher than that of the glaze (2) and lower than that of the heating resistor (5).

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