发明授权
US07625069B2 Liquid discharge head having hollow portions for relaxing stress in the head and manufacturing method of the same 有权
具有用于在头部中缓和应力的中空部分的排液头及其制造方法

Liquid discharge head having hollow portions for relaxing stress in the head and manufacturing method of the same
摘要:
A liquid discharge head includes a substrate having an energy generating element configured to generate energy required to discharge liquid, a discharge port configured to discharge the liquid and provided in an opposed relationship to the energy generating element, a wall member defining a chamber adapted to store the energy required to discharge liquid the energy being generated by the energy generating element, a discharge portion defining a fluid path connecting the chamber and the discharge port, a supply path facilitating supplying the liquid into the chamber, and a pair of hollow portions provided in the wall member, wherein the hollow portions oppose each other and sandwich at least the entire discharge port in a direction from the discharge port to the substrate, and the hollow portions are independent of the chamber.
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