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US08144175B2 Heating resistor element, manufacturing method for the same, thermal head, and printer 有权
加热电阻元件，制造方法相同，热敏头和打印机

Heating resistor element, manufacturing method for the same, thermal head, and printer
Abstract:
Provided is a heating resistor element (1), including: an insulating substrate (9); a heat accumulating layer (10) bonded to a surface of the insulating substrate (9); and a heating resistor (11) provided on the heat accumulating layer (10), in which: on at least one of bonded surfaces (9a) between the insulating substrate (9) and the heat accumulating layer (10), at least one of the insulating substrate (9) and the heat accumulating layer (10) is provided with a concave portion (16) in a region opposed to the heating resistor (11) to form a hollow portion (17); and the hollow portion (17) includes an inner surface on a side of the insulating substrate (9), the inner surface being processed to have surface roughness (Ra) of 0.2 μm or more. Accordingly, heat accumulation in a gas of the hollow portion (17) can be suppressed to improve printing quality.
Abstract(Chinese):

提供一种加热电阻元件（1），包括：绝缘基板（9）; 与绝缘基板（9）的表面接合的蓄热层（10）; 以及设置在所述蓄热层（10）上的加热电阻（11），其中：在所述绝缘基板（9）和所述蓄热层（10）之间的至少一个接合面（9a）上，至少一个 所述绝缘基板（9）和所述蓄热层（10）在与所述加热电阻体（11）相对的区域设置有凹部（16），形成中空部（17）。 并且所述中空部（17）包括在所述绝缘基板（9）的一侧的内表面，所述内表面被加工成具有0.2μm以上的表面粗糙度（Ra）。 因此，可以抑制中空部（17）的气体中的积聚，提高打印质量。

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