Method of fabricating a liquid-jet head

Details Method of fabricating a liquid-jet head Method of fabricating a liquid-jet head

2005-08-09

2005-08-09

Kim, Paul D. (Department: 3729)

Metal working

Method of mechanical manufacture

Fluid pattern dispersing device making, e.g., ink jet

C029S025350, C156S252000, C156S292000, C216S065000, C216S066000, C347S068000, C347S070000, C347S071000

Reexamination Certificate

active

06925712

ABSTRACT:
A liquid-jet head effective in prevention of imperfect eject such as occlusion of a nozzle, a method of fabricating the liquid-jet head, and a liquid-jet apparatus are provided. In a liquid-jet head having a passage-forming substrate on which a pressure-generating chamber communicating with a nozzle orifice is formed, a plurality of piezoelectric elements provided on one side of the passage-forming substrate via a vibration plate, each of the piezoelectric elements comprising a lower electrode, a piezoelectric layer and an upper electrode, the passage-forming substrate is provided with a communicating path communicating with one end in a longitudinal direction of the pressure-generating chamber so as to penetrate the passage-forming substrate. In addition, a penetrated portion for supplying a liquid to the communicating path is formed in a region of the vibration plate opposite to the communicating path by laser processing.

REFERENCES:
patent: 6031201 (2000-02-01), Amako et al.
patent: 6378996 (2002-04-01), Shimada et al.
patent: 6616270 (2003-09-01), Miyata et al.
patent: 5-286131 (1993-11-01), None
patent: 11000787 (1999-01-01), None
“A new device for multifunctional dosage of liquids by a free jet”; Hey, N.; Freygang, M.; Gruhler, H.; Sandmaier, H.; Zengerle, R.; Micro Electro Mechanical Systems, 1998. MEMS 98. Proceedings., on , Jan. 25-29 1998; pp. 429-431.

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