Incremental printing of symbolic information – Ink jet – Ejector mechanism
Reexamination Certificate
2005-04-05
2005-04-05
Brooke, Michael S. (Department: 2853)
Incremental printing of symbolic information
Ink jet
Ejector mechanism
C347S047000
Reexamination Certificate
active
06874871
ABSTRACT:
A method for manufacturing ink jet printer head and the ink jet printer head made thereby are disclosed which method comprises a step to provide silicon wafer; a step to form restrictor plate over the silicon wafer by doping impurity component; a step to form nozzle plate under the silicon wafer by doping impurity component, electroplating a metal or forming a polysilicon layer; a step to form nozzle by etching after patterning the above nozzle plate; a step to form channel going through the restrictor plate and the silicon wafer by etching after patterning the restrictor plate and the silicon wafer; a step to form restrictor at the restrictor plate by etching after patterning the restrictor plate; and a step to form reserver continued to restrictor under the restrictor by etching definite thickness after patterning the silicon wafer; a step to separately form actuator composed of upper electrode, piezoelectric/electrostrictive film, lower electrode, vibration plate, chamber and chamber plate; and a step to bond the restrictor plate and the actuator.
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Samsung Electronics Co,. Ltd.
Staas & Halsey , LLP
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