Metal working – Method of mechanical manufacture – Electrical device making
Reexamination Certificate
2007-10-02
2007-10-02
Tugbang, A. Dexter (Department: 3729)
Metal working
Method of mechanical manufacture
Electrical device making
C029S617000, C029S619000, C029S621000, C029S890100, C347S047000, C347S056000, C347S059000, C347S063000, C347S065000
Reexamination Certificate
active
10740573
ABSTRACT:
A method for manufacturing the same, wherein the monolithic ink-jet printhead includes a manifold for supplying ink, an ink chamber having a hemispheric shape, and an ink channel formed monolithically on a substrate; a silicon oxide layer, in which a nozzle for ejecting ink is centrally formed in the ink chamber, is deposited on the substrate; a heater having a ring shape is formed on the silicon oxide layer to surround the nozzle; a MOS integrated circuit is mounted on the substrate to drive the heater and includes a MOSFET and electrodes connected to the heater. The silicon oxide layer, the heater, and the MOS integrated circuit are formed monolithically on the substrate. Additionally, a DLC coating layer having a high hydrophobic property and high durability is formed on an external surface of the printhead.
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Note: JP'037=AU'720.
Tseng et al, A Novel Microinjector with Virgual Chamber Neck, pp. 57-62, (1998) 0-7803-4412-X/98IEEE.
Baek Seog Soon
Kim Hyeon-cheol
Kuk Keon
Lee Chang-seung
Lee Sang-hyun
Lee & Morse P.C.
Phan Tim
Tugbang A. Dexter
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