| 摘要 |
PROBLEM TO BE SOLVED: To assure reliability over a good printing state and a long period of time by improving in adhesion of a nozzle material with an HB, and, further, to assure high quality reliability even if an ink composition is altered remarkably. SOLUTION: A film of SiO, SiN, SiC, etc. is formed on an HB upper protection film (Ta, etc.). Thereby, even when a head is increased in length, good adhesion with a nozzle constructing member is assured over a long period of time. COPYRIGHT: (C)2008,JPO&INPIT
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