Electrolysis: processes – compositions used therein – and methods – Electrolytic erosion of a workpiece for shape or surface... – Gap maintenance or defined tool-workpiece gap
Patent
1996-10-17
1999-01-26
Valentine, Donald R.
Electrolysis: processes, compositions used therein, and methods
Electrolytic erosion of a workpiece for shape or surface...
Gap maintenance or defined tool-workpiece gap
205656, 205659, 205674, 205685, C25F 302, C25F 312
Patent
active
058634126
ABSTRACT:
A method for etching an object having a portion to be etched on the surface thereof, comprising a step of immersing said object in an electrolyte solution such that said object serves as a negative electrode; a step of arranging a counter electrode having a pattern corresponding to a desired etching pattern to be formed at said portion to be etched of said object in said electrolyte solution so as to maintain a predetermined interval between said counter electrode and said object, and a step of applying a direct current or a pulse current between said object and said counter electrode to etch said portion to be etched of said object into a pattern corresponding to said pattern of said counter electrode.
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patent: 5084400 (1992-01-01), Nath et al.
patent: 5320723 (1994-06-01), Kawakami
patent: 5352341 (1994-10-01), Joyner
Hasebe Akio
Hisamatsu Masaya
Ichinose Hirofumi
Murakami Tsutomu
Sawayama Ippei
Canon Kabushiki Kaisha
Valentine Donald R.
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