| 摘要 |
PURPOSE:To obtain an ink jet head simply at low cost by a method in which a groove is formed in a plate part to form a liquid flow path and a discharge port is provided in the bottom of the groove. CONSTITUTION:A desired number of energy-generating elements 2 are provided on a base plate 1, and a curable photo resist film 3H of a photo-sensitive composition is provided in regions other than the elements 2 to form an ink flow groove. A dry film photo resist is laminated without drooping into the ink flow groove and hardened, and the hardened resist film 6H on the uppermost layer is cut and processed through the ink flow groove 8 to form a discharge port 7. A liquid supply tube is connected to a liquid supply port 10. An ink jet head having a high demensional accuracy can be obtained with good yield by reducing the number of manufacturing processes. |
