Incremental printing of symbolic information – Ink jet – Ejector mechanism
Reexamination Certificate
2006-03-28
2006-03-28
Stephens, Juanita D. (Department: 2853)
Incremental printing of symbolic information
Ink jet
Ejector mechanism
C347S062000
Reexamination Certificate
active
07018021
ABSTRACT:
An inkjet printhead with nozzles (3), chambers (7) and heater elements (10) formed on an ejection side of a silicon wafer substrate (8) using lithographically masked etching and deposition techniques, and conduits (9) are etched into the reverse side of the silicon wafer (8) opposite the ejection side, the conduits (9) being configured for feeding bubble forming liquid (11) to the bubble forming chambers (7), wherein,the conduits (7) are etched to a depth greater than 100 microns from the reverse side of the wafer (8).Etching the wafer from both sides eliminates ink feed conduits on the ejections side of the wafer. This allows nozzle density to increase. By making the reverse etch deep (greater than 100 microns), the viscous drag will provide enough resistance to substantially prevent reverse ink flow from the bubble in the chamber.
REFERENCES:
patent: 4827294 (1989-05-01), Hanson
patent: 4914562 (1990-04-01), Abe et al.
patent: 4965594 (1990-10-01), Komuro
patent: 5534898 (1996-07-01), Kashino et al.
patent: 5706041 (1998-01-01), Kubby
patent: 5841452 (1998-11-01), Silverbrook
patent: 5969005 (1999-10-01), Yamashita et al.
patent: 6019457 (2000-02-01), Silverbrook
patent: 6312112 (2001-11-01), Pietrzyk
patent: 6543879 (2003-04-01), Feinn et al.
patent: 1211072 (2002-06-01), None
patent: WO 01/66357 (2001-09-01), None
The Fabrication and Reliability Testing of Ti/TiN Heaters, P. DeMoor, Proceedings of SPIE, Micormachining and Microfabrication Process Technology V, vol. 3874, pp. 284-293.
“A Retargetable Table Reader”. John H Shamilian, Henry S Baird & Thomas L Wood, Bell Laboratories, Lucent Tech Inc. Crawfords Corner Rd, Room 2F-217, Holmdel, NJ 07733-1988 USA.
Dymetman, M., and Copperman, M., Intelligent Paper; in Electronic Publishing, Artistic Imaging, and Digital Typography, Proceedings of EP '98, Mar./Apr. 1998, Springer Verlag LNCS 1375, pp. 392-406.
Silverbrook Research Pty Ltd
Stephens Juanita D.
LandOfFree
Inkjet printhead with deep reverse etch in integrated... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Inkjet printhead with deep reverse etch in integrated..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Inkjet printhead with deep reverse etch in integrated... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3570451