| 摘要 |
PROBLEM TO BE SOLVED: To provide a liquid ejection head and a liquid ejector in which pressure generation chambers can be arranged with high density while reducing the size. SOLUTION: The liquid ejection head includes a channel forming substrate 10 arranged with at least two rows 13 of pressure generation chambers 12 communicating with respective nozzle openings and piezoelectric elements 300 provided on one side of the channel forming substrate 10 through diaphragms and generating pressure variation in the pressure generation chambers 12. A drive IC110 for driving the piezoelectric element 300 is arranged in a region facing each row 13 of the pressure generation chambers 12 on a bonding substrate 30 being bonded to the piezoelectric element 300 side of the channel forming substrate 10. At least one through-hole 33 for exposing an extractor electrode 90 to extract from the piezoelectric element 300 is provided corresponding to the rows 13 of the pressure generation chambers 12 in a region of the bonding substrate 30 corresponding to the region between the rows 13 of the pressure generation chambers 12 thus forming a beam part 34 between adjacent through-holes 33. COPYRIGHT: (C)2009,JPO&INPIT
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