Apparatus for selectively jet etching a plastic encapsulating an

Details Apparatus for selectively jet etching a plastic encapsulating an Apparatus for selectively jet etching a plastic encapsulating an

1981-12-10

1982-11-16

Powell, William A.

Adhesive bonding and miscellaneous chemical manufacture

Differential fluid etching apparatus

With microwave gas energizing means

29575, 156640, 156655, 156668, B41C 100, B44F 122, C03C 1500, C03C 2506

Patent

active

043593607

ABSTRACT:
An apparatus for selectively jet etching a plastic which is encapsulating an article (i.e., a device, assembly, and the like). This apparatus accomplishes the elimination of the prior art problems and disadvantages by confining the etching to a preselected portion (i.e., the desired region) of the plastic encapsulation, by causing a turbulent flow of the etchant which in turn causes great mechanical agitation of the etchant and thereby results in complete etching of the plastic encapsulant, and by providing a completely closed systemic apparatus which thereby inherently precludes any danger to the personnel using the inventive apparatus.

REFERENCES:
patent: 2937124 (1960-05-01), Vaughan
patent: 3012921 (1961-12-01), Vaughan
patent: 3039514 (1962-06-01), Swartzman
patent: 3953265 (1976-04-01), Hood
patent: 3969813 (1976-07-01), Minetti et al.
patent: 4089704 (1978-05-01), Heiss

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