Chemistry: electrical and wave energy – Processes and products – Electrostatic field or electrical discharge
Patent
1980-04-25
1981-12-01
Gantz, Delbert E.
Chemistry: electrical and wave energy
Processes and products
Electrostatic field or electrical discharge
20412943, 20412965, 20412975, 204224M, 204228, 204DIG9, C25F 312, C25F 700
Patent
active
043034829
ABSTRACT:
An apparatus and method for selectively electrochemically etching a surface is described. The use of the apparatus and the related method allows the establishment of etched planar surface which may be inclined with respect to the original surface.
The apparatus has a cathode and multiple connectors which attach to the workpiece whose surface is to be etched. When the apparatus is operated the potential of the connectors are set so that the cathode is at least as negative as the lowest potential of the connectors.
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Buhne Joachim
Schafer Rolf
Stoffel Axel
Gantz Delbert E.
International Business Machines - Corporation
Valentine Donald R.
Weins Michael J.
Wiener Bernard N.
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