| 摘要 |
PROBLEM TO BE SOLVED: To provide a liquid droplet ejection head which has also a large degree of dimensional freedom of a step part, can achieve prevention of adhesive squeeze fully with a margin, and surely makes an adhesive squeeze out to a supporting substrate side even if the adhesive protrudes from the step part, and to provide an ink cartridge and an inkjet apparatus. SOLUTION: In the liquid droplet ejection head, a liquid droplet element substrate equipped with a plurality of liquid droplet ejecting elements and one or more supply ports which are formed on a surface of the opposite side to a surface where the liquid droplet ejecting elements are set and which supply a liquid droplet material to the liquid droplet ejecting elements is joined to the supporting substrate equipped with the liquid droplet supply ports by using the adhesive. A step lower than a joining surface between the substrates is formed on the supporting substrate side at a part in contact with the liquid droplet material near a substrate joining part. COPYRIGHT: (C)2009,JPO&INPIT
|
