Method for manufacturing an inkjet print head

1. A manufacturing method of an inkjet print head comprising:

forming a separation assisting layer on a substrate;

forming heating resistors, thin-film transistors and nozzles for ejecting liquid, on the separation assisting layer;

separating the separation assisting layer from the substrate;

forming a first heat-conductive layer on an opposite surface of the separation assisting layer from the nozzles; and

forming an ink supply port for supplying ink to the nozzles from a first heat-conductive layer side of the inkjet print head.

2. The manufacturing method of claim 1 ,

wherein the forming the first heat-conductive layer is conducted after forming an active layer of the thin-film transistors in the forming the heating resistors, the thin-film transistors and the nozzles.

3. The manufacturing method of claim 1 ,

wherein the forming the ink supply port includes

forming a first channel running from the nozzles to the separation assisting layer,

forming a second channel in the first heat-conductive layer, and

connecting the first channel and the second channel together to form the ink supply port.

4. The manufacturing method of claim 1 ,

wherein the forming the heating resistors, the thin-film transistors and the nozzles, includes forming an active layer of the thin-film transistors by preparing a layer of amorphous silicon and irradiating with laser for crystalizing the layer of the amorphous silicon.