Inkjet printhead with transistor driver

Details Inkjet printhead with transistor driver Inkjet printhead with transistor driver

2008-05-06

2008-05-06

Stephens, Juanita D. (Department: 2853)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

C347S058000

Reexamination Certificate

active

07367657

ABSTRACT:
An inkjet printhead chip includes a substrate, transistors, isolation structures, a dielectric layer, a resistive layer and conductive sections. Each transistor includes a gate, a source, a drain and a gate oxide disposed between the gate and the substrate. The isolation structures are on the substrate surface and isolate the transistors. The dielectric layer covers the transistors and the isolation structures, and has openings exposed the source and the drain. Several heating regions are in the resistive layer that is on the dielectric layer. In the conductive sections, the first conductive section is on the resistive layer and exposes the heating regions for forming several heating devices. Each heating device has resistance less than 95 ohm and power density less than 2 GW/m2; the second conductive section and the third conductive section are electrically coupled to the drain and the source through the openings of the dielectric layer respectively.

REFERENCES:
patent: 5122812 (1992-06-01), Hess et al.
patent: 5159353 (1992-10-01), Fasen et al.
patent: 5742307 (1998-04-01), Watrobski et al.
patent: 5774148 (1998-06-01), Cornell et al.
patent: 6132030 (2000-10-01), Cornell
patent: 6132032 (2000-10-01), Bryant et al.
patent: 6213587 (2001-04-01), Whitman
patent: 6234612 (2001-05-01), Cornell et al.
patent: 6391527 (2002-05-01), Yagi et al.
patent: 6450622 (2002-09-01), Nguyen et al.
patent: 6523935 (2003-02-01), Torgerson et al.
patent: 6676246 (2004-01-01), Anderson et al.
patent: 6726311 (2004-04-01), Torgerson et al.
patent: 6800497 (2004-10-01), Wang et al.
patent: 7267430 (2007-09-01), Parish

Affiliated with

Also associated with

Rating

Inkjet printhead with transistor driver 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 transistor driver, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Inkjet printhead with transistor driver will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2807221