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Class Information
Number: 156/345.18
Name: Adhesive bonding and miscellaneous chemical manufacture > Differential fluid etching apparatus > For liquid etchant > With means to supply, remove, or recycle liquid etchant outside of etching tank or chamber (e.g., supply tanks or pipe network)
Description: Apparatus including means located outside an etching tank or chamber to supply etchant to the tank or chamber, to remove used etchant from the tank or chamber, or to recycle used etchant.

Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
4838979 Apparatus for processing substrate surface Jun. 13, 1989
4826556 Plastic mold decapsuling apparatus May. 2, 1989
4822441 Plastic mold decapsuling apparatus Apr. 18, 1989
4806192 Method for etching materials Feb. 21, 1989
4803946 Continuous bulk drain for photoresist Feb. 14, 1989
4741798 Installation for etching material May. 3, 1988
4734151 Non-contact polishing of semiconductor materials Mar. 29, 1988
4696717 Process for automatically regenerating copper chloride etch solutions Sep. 29, 1987
4601780 Process of recovering aluminum etchant Jul. 22, 1986
4600463 Treatment basin for semiconductor material Jul. 15, 1986
4595451 Process and apparatus for etching printed circuit boards Jun. 17, 1986
4576677 Method and apparatus for regenerating an ammoniacal etching solution Mar. 18, 1986
4557785 Apparatus for wet processing Dec. 10, 1985
4544439 System for repairing electrical short circuits between parallel printed circuits Oct. 1, 1985
4482425 Liquid etching reactor and method Nov. 13, 1984
4469544 Etching fountain Sep. 4, 1984
4426251 Portable gold recovery apparatus and method for using same Jan. 17, 1984
4397708 Etching and etchant removal apparatus Aug. 9, 1983
4388276 Device for regenerating hydrochloric copper chloride etching solutions Jun. 14, 1983
4383884 Closed loop leaching system May. 17, 1983
4359360 Apparatus for selectively jet etching a plastic encapsulating an article Nov. 16, 1982
4295913 Electrically operated device, especially duplicating device, with a receptacle to accommodate fluid for the chemical treatment of objects Oct. 20, 1981
4190481 Apparatus for ion control of solutions Feb. 26, 1980
4147581 Etching of metal Apr. 3, 1979
4104104 Apparatus for automatically processing photogravure curvilinear surfaces Aug. 1, 1978
4060447 Process for etching of metal Nov. 29, 1977
4060097 Automatic etching system Nov. 29, 1977
4042444 Etchant rejuvenation control system Aug. 16, 1977
4017343 Method of and apparatus for etching Apr. 12, 1977
3999564 Continuous etching and etched material recovery system Dec. 28, 1976
3964956 System for maintaining uniform copper etching efficiency Jun. 22, 1976
3953276 Etching apparatus with plural nozzle arrangements Apr. 27, 1976

1 2 3

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