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US 2002/0170826 A1Published application
Nickel electroforms
AssigneeThe Hong Kong Polytechnic University
InventorsKam Po Wong, Kang Cheung Chan, Tai Man Yue
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Abstract
It is known to apply pulse current during electrodeposition of nickel. In the processes described herein, pulse current waveforms have ramp-down spikes leading to improvements in surface finishes of electroforms created by the processes.
Claims4
A nickel electrodisposition process for creating electroforms having extremely high quality surface finishes, the process comprising applying pulses of direct current in which each pulses has a waveform with ramp-down spike.
Dependencies are inferred from the claim text.