Method of manufacturing ink jet recording head
AssigneeCanon Kabushiki Kaisha
InventorsNorio Ohkuma, Masashi Miyagawa, Genji Inada, Hiroaki Toshima, Tamaki Sato
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Abstract
A method of manufacturing an ink jet recording head, having the steps of forming an ink flow path pattern on a substrate with the use of a dissoluble resin, the substrate having ink ejection pressure generating elements thereon, forming on the ink flow path pattern a coating resin layer, which will serve as ink flow path walls, by dissolving in a solvent a coating resin containing an epoxy resin which is solid at ordinary temperatures, and then solvent-coating the solution on the ink flow path pattern, forming ink ejection outlets in the coating resin layer above the ink ejection pressure generating elements, and dissolving the ink flow path pattern.
Claims46
A method of manufacturing an ink jet recording head, comprising the steps of:
- (1) forming an ink flow path pattern on a substrate with the use of a dissoluble resin, the substrate having ink ejection pressure generating elements thereon;
- (2) forming on the ink flow path pattern a coating resin layer, which will serve as ink flow path walls, by dissolving in a solvent a coating resin containing an epoxy resin which is solid at ordinary temperatures, and then solvent-coating the solution on the ink flow path pattern;
- (3) forming ink ejection outlets in the coating resin layer above the ink ejection pressure generating elements;
- and
- (4) dissolving the ink flow path pattern.
A method of manufacturing an ink jet recording head, comprising the steps of:
- preparing a substrate having a plurality of ink ejection pressure generating elements thereon;
- forming an ink flow path pattern on said substrate using a dissoluble resin;
- forming on the ink flow path pattern a coating resin layer for forming a plurality of ink flow path walls, by dissolving in a solvent a coating resin which is solid at ordinary temperatures, and then spin-coating the solution on the ink flow path pattern;
- forming a plurality of ink ejection outlets in the coating resin layer above the ink ejection pressure generating elements;
- and
- dissolving the ink flow path pattern,
- wherein a concentration of the coating resin dissolved in the solvent is 30-70 wt. %.
A method of manufacturing an ink jet recording head having ink ejection outlets ejecting ink and ink ejection pressure generating elements generating pressure for ejecting ink, distance from said ink ejection outlet to said ink ejection pressure generating element being 20 .mu.m or less, the method comprises the steps of:
- preparing a substrate having a plurality of ink ejection pressure generating elements thereon;
- forming an ink flow path pattern on said substrate using a dissoluble resin;
- forming on the ink flow path pattern a coating resin layer for forming a plurality of ink flow path walls, by dissolving in a solvent a coating resin which is solid at ordinary temperatures, and then spin-coating the solution on the ink flow path pattern;
- forming a plurality of ink ejection outlets in the coating resin layer above the ink ejection pressure generating elements;
- and
- dissolving the ink flow path pattern,
- wherein a concentration of the coating resin dissolved in the solvent is 30-70 wt.
Dependencies are inferred from the claim text.