| 摘要 |
A printhead and method of forming the printhead are provided. The method includes forming an ink feed passage through a print head substrate by providing a metallic substrate having a first surface and a second surface; providing an ink ejector structure on a first surface of the metallic substrate; providing a mask over the second surface of the metallic substrate to define the ink feed passage; and forming the ink feed passage from the second surface of the metallic substrate using a liquid etchant.
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