Method of making a piezoelectric liquid-drop ejection device

Details Method of making a piezoelectric liquid-drop ejection device Method of making a piezoelectric liquid-drop ejection device

1993-02-25

1995-06-06

Hall, Carl E.

Metal working

Piezoelectric device making

298901, H01L 4122

Patent

active

054210712

ABSTRACT:
A liquid-drop ejection device having a plurality of ejectors each having a variable-capacity ink channel. The capacity of the ink channels is variable to generate sufficient pressure to thereby eject ink in the ink channels from nozzles communicating with the ink channels onto paper or the like. The ejection device further comprises a piezoelectric transducer having a plurality of walls for separating the ink channels from one another. The walls have drive electrodes formed on upper or lower portions. The upper portions of the walls are narrower in width than the lower portions. A method of forming the ejection device comprises a first step of forming grooves including portions for receiving drive electrodes, a second step of forming the drive electrodes in the grooves and a third step of further forming the grooves to provide additional portions having widths different from the portions of the grooves formed in the first step.

REFERENCES:
patent: 4752788 (1988-06-01), Yasuhara et al.
patent: 4819014 (1989-04-01), Yasuhara et al.
patent: 4879568 (1989-11-01), Bartky et al.
patent: 4887100 (1989-12-01), Michaelis et al.
patent: 4929256 (1990-05-01), Shepherd
patent: 4940996 (1990-07-01), Paton et al.
patent: 4942409 (1990-07-01), Paton et al.
patent: 4973981 (1990-11-01), Bartky et al.
patent: 4992808 (1991-02-01), Bartky et al.
patent: 5003679 (1991-04-01), Bartky et al.
patent: 5016028 (1991-05-01), Temple
patent: 5028936 (1991-07-01), Bartky et al.

Affiliated with

Also associated with

Rating

Method of making a piezoelectric liquid-drop ejection device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of making a piezoelectric liquid-drop ejection device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of making a piezoelectric liquid-drop ejection device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-978738