Head of inkjet printer and method of manufacturing the same

Details Head of inkjet printer and method of manufacturing the same Head of inkjet printer and method of manufacturing the same

2005-12-13

2005-12-13

Pham, Hai (Department: 2853)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

C347S061000, C347S064000

Reexamination Certificate

active

06974208

ABSTRACT:
A head of an inkjet printer is formed by bonding of a heater substrate and a nozzle plate. In order to bond the heater substrate where a heater thin film and a protecting film are vapor-deposited, and the nozzle plate where a nozzle is formed, an intermediate layer is formed by forming a thin film of glass on the heater substrate by vapor-depositing, and the nozzle plate is installed on the heater substrate. SiO2is formed at an interface between the nozzle plate and the heater thin film due to heating and application of an electric field, and thus the nozzle plate and the heater substrate are bonded with an electrostatic force of SiO2. The nozzle plate and the heater substrate are bonded by using the intermediate layer made of the thin film of glass instead of a general polymer as the bonding layer, thereby preventing swelling of the polymer and isolation of layers of the head occurring due to ink penetration into interfaces of the layers. Moreover, a bonding process is performed in wafer units to improve mass productivity.

REFERENCES:
patent: 5157418 (1992-10-01), Tamura
patent: 5736061 (1998-04-01), Fukada et al.
patent: 5801068 (1998-09-01), Sooriakumar et al.
patent: 2003/0131475 (2003-07-01), Conta

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