Ink jet printhead with glass nozzle chambers

Details Ink jet printhead with glass nozzle chambers Ink jet printhead with glass nozzle chambers

2007-08-20

2009-12-15

Do, An H (Department: 2853)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

C347S065000

Reexamination Certificate

active

07631956

ABSTRACT:
An ink jet printhead is provided. The printhead comprises: a silicon substrate; a CMOS layer comprising drive and control circuitry, the CMOS layer being formed on the silicon substrate; a passivation layer covering the CMOS layer; and a plurality of nozzles mounted on the passivation layer. Each nozzle comprises a chamber adapted to contain an ejectable liquid; and a droplet ejection actuator associated with each of the chambers respectively, the droplet ejection actuator being electrically connected to the drive circuitry and adapted to eject a droplet of the ejectable liquid from the nozzle. The chambers are comprised of a glass material.

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