Multilayer device having integral functional element for use wit

Details Multilayer device having integral functional element for use wit Multilayer device having integral functional element for use wit

1994-11-23

1996-10-29

Hartary, Joseph W.

Incremental printing of symbolic information

Ink jet

Ejector mechanism

257740, B41J 205

Patent

active

055701191

ABSTRACT:
A device for use with a liquid jet recording head, and such a head, include a substrate having a semiconductor functional element, an electrothermal transducer electrically connected to the semiconductor functional element for generating thermal energy to be utilized to discharge liquid from the liquid jet recording head, and an insulating layer disposed on the semiconductor functional element and having a contact hole. An electrode is disposed within the contact hole and another insulating layer is disposed on the electrode and has a through hole. The transducer is disposed on the other insulating layer and has a resistor layer and a pair of electrodes, and that resistor layer includes a portion disposed between the electrode within the contact hole and one of the pair of electrodes within the through hole.

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Askeland, et al. "The Second-Generation Thermal InkJet Structure", Hewlett-Packard Journal, Aug. 1988, pp. 28-31.
Boeller, et al. "High-Volume Microassembly of Color Thermal Inkjet Print-heads and Cartridges", Hewlett-Packard Journal, Aug. 1988, pp. 32-40.
Baker, et al. "Design and Development of a Color Thermal Inkjet Print Cartridge", Hewlett-Packard Journal, Aug. 1988, pp. 6-15.
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Cam Ta, et al. "Mechanical Design of a Color Graphics Printer", Hewlett-Packard Journal, Aug. 1988, pp. 21-27.

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