Adhesive bonding and miscellaneous chemical manufacture – Differential fluid etching apparatus – With microwave gas energizing means
Patent
1987-03-25
1988-08-30
Powell, William A.
Adhesive bonding and miscellaneous chemical manufacture
Differential fluid etching apparatus
With microwave gas energizing means
156642, 156656, 1566591, 156902, 346140R, 364489, C23F 102, B44C 122, C03C 1500, G06F 15606
Patent
active
047674890
ABSTRACT:
A computer aided printer-etcher has a computer connected electrically to a printer etcher unit, such that the printer etcher unit is controlled by the computer through the keyboard and computer memory. The printer etcher unit mounts an etching chamber within a cabinet. A conveyor within the cabinet defining a conveyor film path for a metallized film which path includes a vertically oblique portion within the etching chamber. A high speed printer upstream of the etching chamber and on the conveyor film path applies a resist ink pattern onto the metal surface of the metalized film. A liquid applicator mounted downstream of the printer applies in sequence an etching liquid and a rinse liquid onto the metalized film to etch the exposed metal but not the metal covered by the resist ink pattern. The printer may be an ink jet printer. The resist may be a meltable or thermoplastic material applied as molten drops which solidify to lock out the etching liquid. A viewing window is provided within the cabinet for viewing the metalized film during droplet application of the etchant liquid and the rinse liquid. The applied liquids drain to the bottom of the etching chamber by gravity and flow to a respective etching liquid holding tank or rinse liquid holding tank through drain holes within the bottom wall of the etching chamber which are selectively closed by stopper solenoids.
REFERENCES:
patent: 4389275 (1983-06-01), Ballato
patent: 4523973 (1985-06-01), Nelson
patent: 4552614 (1985-11-01), Beckett
patent: 4588468 (1986-05-01), McGinty et al.
patent: 4720798 (1988-01-01), Reed et al.
PC Proto, Inc.
Powell William A.
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