Invention Grant
US08111273B2 Thermal head, printer, and manufacturing method for thermal head 有权
热敏头,打印机和热头制造方法

Thermal head, printer, and manufacturing method for thermal head
Abstract:
To achieve improvements in heating efficiency and strength against external load, provided is a thermal head (1), comprising: a supporting substrate (3) having a surface in which a concave portion (2) is formed; a heat storage layer (5) bonded onto the surface of the supporting substrate (3); a heating resistor provided in a region, which is opposed to the concave portion (2) of the supporting substrate (3), on the heat storage layer (5); and a protruding portion (2A), which is provided inside a hollow portion formed between the supporting substrate (3) and the heat storage layer (5) by the concave portion (2), and comes into contact with the heat storage layer (5) and limits deflection of the heat storage layer (5) when the heating resistor is pressurized by predetermined load or more.
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