Ink jet heater chip and method therefor

Details Ink jet heater chip and method therefor Ink jet heater chip and method therefor

2005-10-04

2005-10-04

Gordon, Raquel Yvette (Department: 2853)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

Reexamination Certificate

active

06951384

ABSTRACT:
An ink jet heater chip having improved thermal. The chip includes a semiconductor substrate, a first metal resistive, a second metal conductive layer on a first portion of the resistive layer and on a second portion of the resistive layer defining a heater resistor element. A passivation layer having a thickness defined by a deposition process is deposited on the second metal conductive layer and heater resistor element. A cavitation layer is deposited on the passivation layer and etched. A dielectric layer is deposited and etched to provide a dielectric layer overlying the first portion of the resistive layer. An electrical conduit via is etched in the dielectric layer. A third metal conductive layer is deposited in the via for electrical contact with the second metal conductive layer. Separately deposited dielectric and passivation layers enable independent control of the thickness of the dielectric and passivation layers.

REFERENCES:
patent: 4532530 (1985-07-01), Hawkins
patent: 4862197 (1989-08-01), Stoffel
patent: 4947192 (1990-08-01), Hawkins et al.
patent: 4951063 (1990-08-01), Hawkins et al.
patent: 5081473 (1992-01-01), Hawkins et al.
patent: 5157418 (1992-10-01), Tamura
patent: 5844586 (1998-12-01), Berry et al.
patent: 5883650 (1999-03-01), Figueredo et al.
patent: 5980025 (1999-11-01), Burke et al.
patent: 6013160 (2000-01-01), Raisanen et al.
patent: 6120135 (2000-09-01), Murthy et al.
patent: 6139131 (2000-10-01), Prasad et al.
patent: 6252617 (2001-06-01), Hasegawa et al.
patent: 6310639 (2001-10-01), Kawamura et al.
patent: 6315398 (2001-11-01), Burke et al.
patent: 6331049 (2001-12-01), Leban
patent: 0 572 032 (1993-12-01), None

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