Liquid jet head and a piezoelectric element

Details Liquid jet head and a piezoelectric element Liquid jet head and a piezoelectric element

2011-03-01

2011-03-01

Feggins, K. (Department: 2861)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

Reexamination Certificate

active

07896479

ABSTRACT:
A liquid jet head has a channel-forming substrate composed of a crystal substrate having a pressure-generating chamber linked to a nozzle opening as well as a piezoelectric element composed of a lower electrode, a piezoelectric layer, and an upper electrode and formed on the channel-forming substrate so that the pressure in the pressure-generating chamber can be changed, with the piezoelectric layer having a thickness equal to or smaller than 5 μm, made of a perovskite-type crystal, and formed so that the interval between the X-ray diffraction peak position derived from the (220) plane of the channel-forming substrate and the X-ray diffraction peak position derived from the (111) plane of the piezoelectric layer falls within the range 2θ=9.059±0.1°.

REFERENCES:
patent: 6103072 (2000-08-01), Nishiwaki et al.
patent: 6284434 (2001-09-01), Kamei et al.
patent: 2006/0146097 (2006-07-01), Fujii et al.
patent: 2006-278835 (2006-10-01), None

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