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US08349199B2 Ink feedhole of inkjet printhead and method of forming the same 有权
喷墨打印头的供墨孔及其形成方法

Ink feedhole of inkjet printhead and method of forming the same
Abstract:
An ink feedhole of an inkjet printhead and a method of forming the same includes an ink feedhole that penetrates a substrate and has a width that narrows in an upper direction of the substrate, wherein at least one internal wall of the ink feedhole has a plurality of steps and inclines with respect to a surface of the substrate.
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