Metal working – Method of mechanical manufacture – Electrical device making
Patent
1992-11-25
1995-10-10
Echols, P. W.
Metal working
Method of mechanical manufacture
Electrical device making
298901, 21912171, 347 47, H05B 300, G01D 1516
Patent
active
054559987
ABSTRACT:
A method for manufacturing an ink jet head which involves the steps of casting a first synthetic film on a metal film, etching the conductive metal to produce a pair of etched electrodes facing each other across an opening according to lithography and etching techniques, casting a second synthetic resin film being transparent on the etched electrodes and the first synthetic resin film, ablating both the first and second synthetic resin films with an excimer laser without damaging the electrodes to form both an expelling nozzle which penetrates the second synthetic resin film and an ink passageway which penetrates the first synthetic resin film through the opening, attaching an ink holding cap to the first synthetic resin film to hold conductive ink in a hollow portion thereof, and electrically connecting the etched electrodes with a voltage generator through electrical leads for applying a voltage generated in the voltage generator to the etched electrodes, wherein the etched electrodes project into the expelling nozzle. The conductive ink held in the ink holding cap is expelled from the nozzle through the ink passageway upon vaporization.
REFERENCES:
patent: 3179042 (1965-04-01), Naiman
patent: 4595938 (1986-01-01), Conta et al.
patent: 4679059 (1987-07-01), Dagna
patent: 4922265 (1990-05-01), Pan
Horio Hideaki
Inoue Takumi
Matsuda Mitsuhide
Miyazono Yutaka
Ohtsubo Kazumi
Echols P. W.
Matsushita Electric - Industrial Co., Ltd.
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