| 摘要 |
PROBLEM TO BE SOLVED: To manufacture a nozzle substrate body of an ink jet nozzle in which an opening for ejecting ink is finished with high accuracy by electrocasting. SOLUTION: When the nozzle substrate having an opening 1 for ejecting ink in the nozzle substrate body 2 is manufactured, fine mesh-like grooves 6 are formed, at a micro pitch, in the surface of an original glass plate 4 except the periphery of the opening 1. A conductive plating substrate 8 is formed only in the grooves 6 of the original glass plate 4. Subsequently, electrocasting is performed using the plating substrate 8 in the grooves 6 of the original glass plate 4 as an electrode and then the nozzle substrate body 2 is stripped from the original glass plate 4 thus producing the nozzle substrate. COPYRIGHT: (C)2004,JPO
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